first version of NextcloudShareBookmark

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea
+.DS_Store
+/build
+/captures
+.externalNativeBuild

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 27
+    defaultConfig {
+        applicationId "de.thedevstack.android.nextcloud.bookmark.share"
+        minSdkVersion 19
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support:support-v4:27.1.1'
+    implementation 'com.android.support:design:27.1.1'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/de/thedevstack/android/nextcloud/bookmark/share/ExampleInstrumentedTest.java

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+package de.thedevstack.android.nextcloud.bookmark.share;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("de.thedevstack.android.nextcloud.bookmark.share", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="de.thedevstack.android.nextcloud.bookmark.share">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity
+            android:name=".activities.NextcloudBookmarkShareActivity"
+            android:label="@string/sharing_label">
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="text/plain" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".activities.NextcloudPreferencesActivity"
+            android:label="@string/title_activity_nextcloud_preferences">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/Constants.java

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+package de.thedevstack.android.nextcloud.bookmark.share;
+
+/**
+ */
+public interface Constants {
+    String SERVER_URL_PREFERENCE_KEY = "nextcloud_server_url";
+    String USERNAME_PREFERENCE_KEY = "nextcloud_username";
+    String PASSWORD_PREFERENCE_KEY = "nextcloud_password";
+}

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/NextcloudBookmark.java

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+package de.thedevstack.android.nextcloud.bookmark.share;
+
+import android.text.TextUtils;
+
+/**
+ */
+public class NextcloudBookmark {
+    private String bookmarkUrl;
+    private String bookmarkTitle;
+
+    public NextcloudBookmark(String bookmarkUrl) {
+        this.bookmarkUrl = bookmarkUrl;
+    }
+
+    public NextcloudBookmark(String bookmarkUrl, String bookmarkTitle) {
+        this.bookmarkUrl = bookmarkUrl;
+        this.bookmarkTitle = bookmarkTitle;
+    }
+
+    public String getBookmarkUrl() {
+        return bookmarkUrl;
+    }
+
+    public void setBookmarkUrl(String bookmarkUrl) {
+        this.bookmarkUrl = bookmarkUrl;
+    }
+
+    public String getBookmarkTitle() {
+        return bookmarkTitle;
+    }
+
+    public void setBookmarkTitle(String bookmarkTitle) {
+        this.bookmarkTitle = bookmarkTitle;
+    }
+
+    public static NextcloudBookmark create(String url, String title) {
+        if (!TextUtils.isEmpty(url)) {
+            return new NextcloudBookmark(url, title);
+        }
+        return null;
+    }
+}

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/NextcloudBookmarkService.java

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+package de.thedevstack.android.nextcloud.bookmark.share;
+
+import android.app.Activity;
+import android.content.Intent;
+
+import de.thedevstack.android.nextcloud.bookmark.share.async.NextcloudAddBookmarkAsyncTask;
+
+/**
+ */
+public class NextcloudBookmarkService {
+    public static void addBookmark(Activity context, Intent intent) {
+        String bookmarkUrl = intent.getStringExtra(Intent.EXTRA_TEXT);
+        String bookmarkTitle = intent.getStringExtra(Intent.EXTRA_TITLE);
+
+        addBookmark(context, bookmarkUrl, bookmarkTitle);
+    }
+
+    public static void addBookmark(Activity context, String bookmarkUrl, String bookmarkTitle) {
+        new NextcloudAddBookmarkAsyncTask(context).execute(bookmarkUrl, bookmarkTitle);
+    }
+
+    public static void addBookmark(Activity context, NextcloudBookmark bookmark) {
+        new NextcloudAddBookmarkAsyncTask(context).execute(bookmark.getBookmarkUrl(), bookmark.getBookmarkTitle());
+    }
+}

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/activities/AppCompatPreferenceActivity.java

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+package de.thedevstack.android.nextcloud.bookmark.share.activities;
+
+import android.content.res.Configuration;
+import android.os.Bundle;
+import android.preference.PreferenceActivity;
+import android.support.annotation.LayoutRes;
+import android.support.annotation.Nullable;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AppCompatDelegate;
+import android.support.v7.widget.Toolbar;
+import android.view.MenuInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+/**
+ * A {@link android.preference.PreferenceActivity} which implements and proxies the necessary calls
+ * to be used with AppCompat.
+ */
+public abstract class AppCompatPreferenceActivity extends PreferenceActivity {
+
+    private AppCompatDelegate mDelegate;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        getDelegate().installViewFactory();
+        getDelegate().onCreate(savedInstanceState);
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    protected void onPostCreate(Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+        getDelegate().onPostCreate(savedInstanceState);
+    }
+
+    public ActionBar getSupportActionBar() {
+        return getDelegate().getSupportActionBar();
+    }
+
+    public void setSupportActionBar(@Nullable Toolbar toolbar) {
+        getDelegate().setSupportActionBar(toolbar);
+    }
+
+    @Override
+    public MenuInflater getMenuInflater() {
+        return getDelegate().getMenuInflater();
+    }
+
+    @Override
+    public void setContentView(@LayoutRes int layoutResID) {
+        getDelegate().setContentView(layoutResID);
+    }
+
+    @Override
+    public void setContentView(View view) {
+        getDelegate().setContentView(view);
+    }
+
+    @Override
+    public void setContentView(View view, ViewGroup.LayoutParams params) {
+        getDelegate().setContentView(view, params);
+    }
+
+    @Override
+    public void addContentView(View view, ViewGroup.LayoutParams params) {
+        getDelegate().addContentView(view, params);
+    }
+
+    @Override
+    protected void onPostResume() {
+        super.onPostResume();
+        getDelegate().onPostResume();
+    }
+
+    @Override
+    protected void onTitleChanged(CharSequence title, int color) {
+        super.onTitleChanged(title, color);
+        getDelegate().setTitle(title);
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        getDelegate().onConfigurationChanged(newConfig);
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+        getDelegate().onStop();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        getDelegate().onDestroy();
+    }
+
+    public void invalidateOptionsMenu() {
+        getDelegate().invalidateOptionsMenu();
+    }
+
+    private AppCompatDelegate getDelegate() {
+        if (mDelegate == null) {
+            mDelegate = AppCompatDelegate.create(this, null);
+        }
+        return mDelegate;
+    }
+}

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/activities/NextcloudBookmarkShareActivity.java

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+package de.thedevstack.android.nextcloud.bookmark.share.activities;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.support.v7.app.AppCompatActivity;
+import android.text.TextUtils;
+
+import de.thedevstack.android.nextcloud.bookmark.share.Constants;
+import de.thedevstack.android.nextcloud.bookmark.share.NextcloudBookmarkService;
+
+/**
+ */
+public class NextcloudBookmarkShareActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        Intent intent = getIntent();
+        String action = intent.getAction();
+        String type = intent.getType();
+
+        if (Intent.ACTION_SEND.equals(action) && type != null) {  // Opened via share menu
+            if ("text/plain".equals(type)) {
+                SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(NextcloudBookmarkShareActivity.this.getApplicationContext());
+
+                if (!existsAndIsNotEmpty(prefs, Constants.SERVER_URL_PREFERENCE_KEY)
+                        || !existsAndIsNotEmpty(prefs, Constants.USERNAME_PREFERENCE_KEY)
+                        || !existsAndIsNotEmpty(prefs, Constants.PASSWORD_PREFERENCE_KEY)) {
+                    Intent settingsActivityIntent = new Intent(this, NextcloudPreferencesActivity.class);
+
+                    String bookmarkUrl = intent.getStringExtra(Intent.EXTRA_TEXT);
+                    String bookmarkTitle = intent.getStringExtra(Intent.EXTRA_TITLE);
+
+                    settingsActivityIntent.putExtra(Intent.EXTRA_TEXT, bookmarkUrl);
+                    settingsActivityIntent.putExtra(Intent.EXTRA_TITLE, bookmarkTitle);
+
+                    startActivity(settingsActivityIntent);
+                } else {
+                    NextcloudBookmarkService.addBookmark(this, intent);
+                }
+            }
+        }
+        this.finish();
+    }
+
+    private boolean existsAndIsNotEmpty(SharedPreferences prefs, String prefKey) {
+        return !TextUtils.isEmpty(prefs.getString(prefKey, ""));
+    }
+}

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/activities/NextcloudPreferencesActivity.java

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+package de.thedevstack.android.nextcloud.bookmark.share.activities;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.annotation.TargetApi;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+import android.support.v7.app.AppCompatActivity;
+
+import android.os.Build;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.inputmethod.EditorInfo;
+import android.webkit.URLUtil;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import de.thedevstack.android.nextcloud.bookmark.share.Constants;
+import de.thedevstack.android.nextcloud.bookmark.share.NextcloudBookmark;
+import de.thedevstack.android.nextcloud.bookmark.share.R;
+import de.thedevstack.android.nextcloud.bookmark.share.async.NextcloudCheckCredentialsTask;
+
+/**
+ * A login screen that offers login via username/password.
+ */
+public class NextcloudPreferencesActivity extends AppCompatActivity {
+    /**
+     * Keep track of the login task to ensure we can cancel it if requested.
+     */
+    private NextcloudCheckCredentialsTask checkCredentialsTask = null;
+
+    // UI references.
+    private EditText serverUrlView;
+    private EditText usernameView;
+    private EditText passwordView;
+    private View mProgressView;
+    private View mLoginFormView;
+    private NextcloudBookmark bookmark;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_nextcloud_preferences);
+
+        Intent intent = getIntent();
+
+        this.bookmark = NextcloudBookmark.create(intent.getStringExtra(Intent.EXTRA_TEXT), intent.getStringExtra(Intent.EXTRA_TITLE));
+
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
+
+        // Set up the login form.
+        serverUrlView = findViewById(R.id.serverUrl);
+        serverUrlView.setText(prefs.getString(Constants.SERVER_URL_PREFERENCE_KEY, getString(R.string.default_server_url)));
+        usernameView = findViewById(R.id.username);
+        usernameView.setText(prefs.getString(Constants.USERNAME_PREFERENCE_KEY, getString(R.string.default_blank)));
+
+        passwordView = findViewById(R.id.password);
+        passwordView.setText(prefs.getString(Constants.PASSWORD_PREFERENCE_KEY, getString(R.string.default_blank)));
+        passwordView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
+            @Override
+            public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) {
+                if (id == EditorInfo.IME_ACTION_DONE || id == EditorInfo.IME_NULL) {
+                    checkCredentials();
+                    return true;
+                }
+                return false;
+            }
+        });
+
+        findViewById(R.id.sign_in_button).setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                checkCredentials();
+            }
+        });
+
+        mLoginFormView = findViewById(R.id.login_form);
+        mProgressView = findViewById(R.id.login_progress);
+    }
+
+    /**
+     * Attempts to sign in or register the account specified by the login form.
+     * If there are form errors (invalid email, missing fields, etc.), the
+     * errors are presented and no actual login attempt is made.
+     */
+    private void checkCredentials() {
+        if (checkCredentialsTask != null) {
+            return;
+        }
+
+        // Reset errors.
+        serverUrlView.setError(null);
+        usernameView.setError(null);
+        passwordView.setError(null);
+
+        // Store values at the time of the login attempt.
+        String nextcloudServerUrl = serverUrlView.getText().toString();
+        String username = usernameView.getText().toString();
+        String password = passwordView.getText().toString();
+
+        boolean cancel = false;
+        View focusView = null;
+
+        if (TextUtils.isEmpty(nextcloudServerUrl) || !URLUtil.isNetworkUrl(nextcloudServerUrl)) {
+            serverUrlView.setError(getString(R.string.error_server_url_invalid));
+            focusView = serverUrlView;
+            cancel = true;
+        }
+
+        // Check for a valid email address.
+        if (TextUtils.isEmpty(username)) {
+            usernameView.setError(getString(R.string.error_field_required));
+            focusView = usernameView;
+            cancel = true;
+        }
+
+        if (cancel) {
+            // There was an error; don't attempt login and focus the first
+            // form field with an error.
+            focusView.requestFocus();
+        } else {
+            // Show a progress spinner, and kick off a background task to
+            // perform the user login attempt.
+            showProgress(true);
+            checkCredentialsTask = new NextcloudCheckCredentialsTask(this, this.bookmark, nextcloudServerUrl, username, password);
+            checkCredentialsTask.execute((Intent) null);
+        }
+    }
+
+    /**
+     * Shows the progress UI and hides the login form.
+     */
+    @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
+    public void showProgress(final boolean show) {
+        // On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
+        // for very easy animations. If available, use these APIs to fade-in
+        // the progress spinner.
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
+            int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
+
+            mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
+            mLoginFormView.animate().setDuration(shortAnimTime).alpha(
+                    show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
+                }
+            });
+
+            mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
+            mProgressView.animate().setDuration(shortAnimTime).alpha(
+                    show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
+                }
+            });
+        } else {
+            // The ViewPropertyAnimator APIs are not available, so simply show
+            // and hide the relevant UI components.
+            mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
+            mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
+        }
+    }
+
+    public void stopProgress() {
+        this.checkCredentialsTask = null;
+        showProgress(false);
+    }
+
+    public void showIncorrectPassword() {
+        passwordView.setError(getString(R.string.error_incorrect_password));
+        passwordView.requestFocus();
+    }
+}
+

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/async/NextcloudAddBookmarkAsyncTask.java

@@ -0,0 +1,40 @@
+package de.thedevstack.android.nextcloud.bookmark.share.async;
+
+import android.app.Activity;
+import android.util.Log;
+import android.widget.Toast;
+
+import de.thedevstack.android.nextcloud.bookmark.share.R;
+
+/**
+ */
+public class NextcloudAddBookmarkAsyncTask extends NextcloudBookmarkRestAsyncTask<String, Integer> {
+
+    public NextcloudAddBookmarkAsyncTask(Activity context) {
+        super(context.getApplicationContext());
+    }
+
+    @Override
+    protected void onPreExecute() {
+        super.onPreExecute();
+    }
+
+    @Override
+    protected Integer doInBackground(String... params) {
+        String bookmarkUrl = params[0];
+        //String bookmarkTitle = params[1];
+
+        return this.client.addBookmark(bookmarkUrl);
+    }
+
+    @Override
+    protected void onPostExecute(Integer resultCode) {
+        if (200 == resultCode) {
+            Log.i("NCAddBookmarkAsync", "Bookmark successfully set");
+            Toast.makeText(context, R.string.toast_bookmark_add_success, Toast.LENGTH_LONG).show();
+        } else {
+            Log.e("NCAddBookmarkAsync", "Failed to set Bookmark");
+            Toast.makeText(context, R.string.toast_bookmark_add_failed, Toast.LENGTH_LONG).show();
+        }
+    }
+}

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/async/NextcloudBookmarkRestAsyncTask.java

@@ -0,0 +1,30 @@
+package de.thedevstack.android.nextcloud.bookmark.share.async;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.AsyncTask;
+import android.preference.PreferenceManager;
+
+import de.thedevstack.android.nextcloud.bookmark.share.Constants;
+import de.thedevstack.android.nextcloud.bookmark.share.rest.NextcloudBookmarkRestClient;
+
+/**
+ */
+public abstract class NextcloudBookmarkRestAsyncTask<Params, Result> extends AsyncTask<Params, Void, Result> {
+    protected NextcloudBookmarkRestClient client;
+    protected Context context;
+
+    public NextcloudBookmarkRestAsyncTask(Context context){
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        String serverUrl = prefs.getString(Constants.SERVER_URL_PREFERENCE_KEY, null);
+        String username = prefs.getString(Constants.USERNAME_PREFERENCE_KEY, null);
+        String password = prefs.getString(Constants.PASSWORD_PREFERENCE_KEY, null);
+
+        this.client = new NextcloudBookmarkRestClient(serverUrl, username, password);
+        this.context = context;
+    }
+
+    public NextcloudBookmarkRestAsyncTask(String serverUrl, String username, String password) {
+        this.client = new NextcloudBookmarkRestClient(serverUrl, username, password);
+    }
+}

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/async/NextcloudCheckCredentialsTask.java

@@ -0,0 +1,76 @@
+package de.thedevstack.android.nextcloud.bookmark.share.async;
+
+import android.content.Intent;
+import android.preference.PreferenceManager;
+import android.util.Log;
+import android.widget.Toast;
+
+import de.thedevstack.android.nextcloud.bookmark.share.Constants;
+import de.thedevstack.android.nextcloud.bookmark.share.NextcloudBookmark;
+import de.thedevstack.android.nextcloud.bookmark.share.NextcloudBookmarkService;
+import de.thedevstack.android.nextcloud.bookmark.share.R;
+import de.thedevstack.android.nextcloud.bookmark.share.activities.NextcloudPreferencesActivity;
+
+/**
+ * Represents an asynchronous login/registration task used to authenticate
+ * the user.
+ */
+public class NextcloudCheckCredentialsTask extends NextcloudBookmarkRestAsyncTask<Intent, Boolean> {
+    private NextcloudPreferencesActivity preferencesActivity;
+    private NextcloudSettings ncSettings;
+    private NextcloudBookmark bookmark;
+
+    public NextcloudCheckCredentialsTask(NextcloudPreferencesActivity preferencesActivity, NextcloudBookmark bookmark, String serverUrl, String username, String password) {
+        this(preferencesActivity, serverUrl, username, password);
+        this.bookmark = bookmark;
+    }
+
+    public NextcloudCheckCredentialsTask(NextcloudPreferencesActivity preferencesActivity, String serverUrl, String username, String password) {
+        super(serverUrl, username, password);
+        this.preferencesActivity = preferencesActivity;
+        this.ncSettings = new NextcloudSettings();
+        this.ncSettings.serverUrl = serverUrl;
+        this.ncSettings.username = username;
+        this.ncSettings.password = password;
+    }
+
+    @Override
+    protected Boolean doInBackground(Intent... params) {
+        return this.client.checkCredentials();
+    }
+
+    @Override
+    protected void onPostExecute(final Boolean success) {
+        this.preferencesActivity.stopProgress();
+
+        Log.d("NCCheckCredentials", "result is " + success);
+        if (success) {
+            Log.d("NCCheckCredentials", "applying preferences");
+            PreferenceManager.getDefaultSharedPreferences(this.preferencesActivity.getApplicationContext())
+                    .edit()
+                    .putString(Constants.SERVER_URL_PREFERENCE_KEY, this.ncSettings.serverUrl)
+                    .putString(Constants.USERNAME_PREFERENCE_KEY, this.ncSettings.username)
+                    .putString(Constants.PASSWORD_PREFERENCE_KEY, this.ncSettings.password)
+                    .commit();
+            if (null != this.bookmark) {
+                NextcloudBookmarkService.addBookmark(this.preferencesActivity, this.bookmark);
+                this.preferencesActivity.finish();
+            } else {
+                Toast.makeText(this.preferencesActivity, R.string.toast_settings_update_success, Toast.LENGTH_LONG).show();
+            }
+        } else {
+            this.preferencesActivity.showIncorrectPassword();
+        }
+    }
+
+    @Override
+    protected void onCancelled() {
+        this.preferencesActivity.stopProgress();
+    }
+
+    private class NextcloudSettings {
+        String serverUrl;
+        String username;
+        String password;
+    }
+}

app/src/main/java/de/thedevstack/android/nextcloud/bookmark/share/rest/NextcloudBookmarkRestClient.java

@@ -0,0 +1,100 @@
+package de.thedevstack.android.nextcloud.bookmark.share.rest;
+
+import android.util.Base64;
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+
+import javax.net.ssl.HttpsURLConnection;
+
+/**
+ */
+public class NextcloudBookmarkRestClient {
+    private static final String LOGTAG = "NCBookmarkRestClient";
+    private static final String BOOKMARK_APP_REST_API = "/apps/bookmarks/public/rest/v2/bookmark";
+    private final String username;
+    private final String password;
+    private final String serverUrl;
+    private final String restApiBaseUrl;
+    private HttpsURLConnection urlConnection;
+
+    public NextcloudBookmarkRestClient(String serverUrl, String username, String password) {
+        this.serverUrl = serverUrl;
+        this.username = username;
+        this.password = password;
+        this.restApiBaseUrl = serverUrl + BOOKMARK_APP_REST_API;
+    }
+
+    private void openConnection(String url) throws IOException {
+        this.urlConnection = (HttpsURLConnection) new URL(url).openConnection();
+        String encoded = Base64.encodeToString((this.username+":"+this.password).getBytes(StandardCharsets.UTF_8), 0);
+        this.urlConnection.setRequestProperty("Authorization", "Basic "+encoded);
+    }
+
+    public boolean checkCredentials() {
+        Log.d(LOGTAG, "checking credentials");
+        boolean validCredentials = false;
+        try {
+            this.openConnection(this.restApiBaseUrl);
+            this.urlConnection.setRequestMethod("HEAD");
+            this.urlConnection.connect();
+            validCredentials = 401 != this.urlConnection.getResponseCode();
+            Log.d(LOGTAG, "credentials are " + validCredentials);
+        } catch (IOException e) {
+            System.out.println(e.getMessage());
+        } finally {
+            if (null != this.urlConnection) {
+                this.urlConnection.disconnect();
+            }
+            return validCredentials;
+        }
+    }
+
+    public int addBookmark(String bookmarkUrl) {
+        Log.d(LOGTAG, "trying to add bookmark for '" + bookmarkUrl + "'");
+        int responseCode = -1;
+        StringBuffer sb = new StringBuffer();
+        InputStream is = null;
+
+        try {
+            this.openConnection(this.restApiBaseUrl + "?url=" + bookmarkUrl);
+            this.urlConnection.setRequestMethod("POST");
+            this.urlConnection.connect();
+
+            is = new BufferedInputStream(urlConnection.getInputStream());
+            BufferedReader br = new BufferedReader(new InputStreamReader(is));
+            String inputLine = "";
+            while ((inputLine = br.readLine()) != null) {
+                sb.append(inputLine);
+            }
+            Log.d(LOGTAG, sb.toString());
+
+            responseCode = this.urlConnection.getResponseCode();
+        } catch (Exception e) {
+            Log.e(LOGTAG, "Error while trying to add bookmark: " + e.getMessage());
+        }
+        finally {
+            Log.i(LOGTAG, "disconnecting...");
+            if (null != this.urlConnection) {
+                this.urlConnection.disconnect();
+            }
+
+            if (is != null) {
+                try {
+                    is.close();
+                }
+                catch (IOException e) {
+                    Log.d(LOGTAG, "Error closing InputStream");
+                }
+            }
+
+            return responseCode;
+        }
+    }
+}

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>

app/src/main/res/drawable/ic_info_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zm1,15h-2v-6h2v6zm0,-8h-2V7h2v2z" />
+</vector>

app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+</vector>

app/src/main/res/drawable/ic_notifications_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M11.5,22c1.1,0 2,-0.9 2,-2h-4c0,1.1 0.9,2 2,2zm6.5,-6v-5.5c0,-3.07 -2.13,-5.64 -5,-6.32V3.5c0,-0.83 -0.67,-1.5 -1.5,-1.5S10,2.67 10,3.5v0.68c-2.87,0.68 -5,3.25 -5,6.32V16l-2,2v1h17v-1l-2,-2z" />
+</vector>

app/src/main/res/drawable/ic_sync_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12 4V1L8 5l4 4V6c3.31 0 6 2.69 6 6 0 1.01,-.25 1.97,-.7 2.8l1.46 1.46C19.54 15.03 20 13.57 20 12c0,-4.42,-3.58,-8,-8,-8zm0 14c-3.31 0,-6,-2.69,-6,-6 0,-1.01.25,-1.97.7,-2.8L5.24 7.74C4.46 8.97 4 10.43 4 12c0 4.42 3.58 8 8 8v3l4,-4,-4,-4v3z" />
+</vector>

app/src/main/res/layout/activity_nextcloud_preferences.xml

@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center_horizontal"
+    android:orientation="vertical"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context=".activities.NextcloudPreferencesActivity">
+
+    <!-- Login progress -->
+    <ProgressBar
+        android:id="@+id/login_progress"
+        style="?android:attr/progressBarStyleLarge"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="8dp"
+        android:visibility="gone"
+        android:tooltipText="@string/prompt_checking_credentials"/>
+
+    <!-- Credentials form -->
+    <ScrollView
+        android:id="@+id/login_form"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:id="@+id/email_login_form"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="66dp"
+                android:paddingTop="5dp"
+                android:text="@string/server_settings_description" />
+
+            <android.support.design.widget.TextInputLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+                <EditText
+                    android:id="@+id/serverUrl"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/prompt_serverUrl"
+                    android:inputType="textUri"
+                    android:maxLines="1"
+                    android:singleLine="true" />
+
+            </android.support.design.widget.TextInputLayout>
+
+            <android.support.design.widget.TextInputLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+                <EditText
+                    android:id="@+id/username"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/prompt_username"
+                    android:inputType="text"
+                    android:maxLines="1"
+                    android:singleLine="true" />
+
+            </android.support.design.widget.TextInputLayout>
+
+            <android.support.design.widget.TextInputLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+                <EditText
+                    android:id="@+id/password"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/prompt_password"
+                    android:imeActionId="6"
+                    android:imeActionLabel="@string/action_save_credentials_short"
+                    android:imeOptions="actionUnspecified"
+                    android:inputType="textPassword"
+                    android:maxLines="1"
+                    android:singleLine="true" />
+
+            </android.support.design.widget.TextInputLayout>
+
+            <Button
+                android:id="@+id/sign_in_button"
+                style="?android:textAppearanceSmall"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:text="@string/action_save_credentials"
+                android:textStyle="bold" />
+
+        </LinearLayout>
+    </ScrollView>
+</LinearLayout>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

app/src/main/res/values/dimens.xml

@@ -0,0 +1,5 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

app/src/main/res/values/ic_launcher_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#FF8000</color>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,29 @@
+<resources>
+    <string name="app_name">Nextcloud Share Bookmark</string>
+    <string name="sharing_label">Add Bookmark to Nextcloud</string>
+
+    <string name="title_activity_nextcloud_preferences">Nextcloud Share Bookmark Settings</string>
+
+    <!-- Labels related to preference screen -->
+    <string name="server_settings_description">Your credentials are needed to store a bookmark to your Nextcloud instance.</string>
+    <string name="prompt_username">Username</string>
+    <string name="prompt_password">Password</string>
+    <string name="prompt_serverUrl">Server URL</string>
+
+    <!-- Save button on preference screen -->
+    <string name="action_save_credentials">Save credentials</string>
+    <string name="action_save_credentials_short">Save credentials</string>
+
+    <!-- error message for preference screen -->
+    <string name="error_incorrect_password">This password is incorrect</string>
+    <string name="error_field_required">This field is required</string>
+    <string name="error_server_url_invalid">This server URL is invalid</string>
+
+
+    <string name="prompt_checking_credentials">Validating credentials</string>
+
+    <!-- Messages for Toasts -->
+    <string name="toast_settings_update_success">Settings successfully updated</string>
+    <string name="toast_bookmark_add_success">Bookmark successfully set</string>
+    <string name="toast_bookmark_add_failed">Failed to set Bookmark</string>
+</resources>

app/src/main/res/values/styles.xml

@@ -0,0 +1,11 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

app/src/main/res/values/values.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="default_server_url">https://</string>
+    <string name="default_blank"/>
+</resources>

app/src/main/res/xml/preferences.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <EditTextPreference
+        android:key="nextcloud_server_url"
+        android:title="Nextcloud URL"
+        android:defaultValue="https://"/>
+    <EditTextPreference
+        android:key="nextcloud_username"
+        android:title="Nextcloud Username"/>
+    <EditTextPreference
+        android:key="nextcloud_password"
+        android:title="Nextcloud Password"/>
+</PreferenceScreen>

app/src/test/java/de/thedevstack/android/nextcloud/bookmark/share/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package de.thedevstack.android.nextcloud.bookmark.share;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

build.gradle

@@ -0,0 +1,27 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.1.4'
+        
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

gradle.properties

@@ -0,0 +1,13 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Sun Nov 18 18:45:54 CET 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+include ':app'