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package de.thedevstack.conversationsplus;
import android.app.Application;
import android.content.Context;
import android.content.pm.PackageManager;
import android.preference.PreferenceManager;
import java.io.File;
import de.thedevstack.conversationsplus.persistance.FileBackend;
import de.thedevstack.conversationsplus.utils.ImageUtil;
import de.thedevstack.conversationsplus.utils.SerialSingleThreadExecutor;
/**
* This class is used to provide static access to the applicationcontext.
*/
public class ConversationsPlusApplication extends Application {
/**
* Application instance for static access
*/
private static ConversationsPlusApplication instance;
private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
/**
* Initializes the application and saves its instance.
*/
public void onCreate(){
super.onCreate();
ConversationsPlusApplication.instance = this;
ConversationsPlusPreferences.init(PreferenceManager.getDefaultSharedPreferences(getAppContext()));
ImageUtil.initBitmapCache();
FileBackend.init();
}
/**
* Returns the instance of the application
* @return this application instance
*/
public static ConversationsPlusApplication getInstance() {
return ConversationsPlusApplication.instance;
}
public static void executeFileAdding(Runnable r) {
getInstance().mFileAddingExecutor.execute(r);
}
public static void executeDatabaseOperation(Runnable r) {
getInstance().mDatabaseExecutor.execute(r);
}
/**
* Returns the application's context.
* @return Context the application's context
*/
public static Context getAppContext() {
return ConversationsPlusApplication.instance.getApplicationContext();
}
/**
* Returns the application's private data directory.
* @return File the application's private data dir
*/
public static File getPrivateFilesDir() {
return ConversationsPlusApplication.instance.getFilesDir();
}
/**
* Returns the version of the application.
* @see android.content.pm.PackageInfo#versionName
* @return a string representation of the version stored in packageInfo
*/
public static String getVersion() {
final String packageName = ConversationsPlusApplication.getAppContext().getPackageName();
if (packageName != null) {
try {
return ConversationsPlusApplication.getAppContext().getPackageManager().getPackageInfo(packageName, 0).versionName;
} catch (final PackageManager.NameNotFoundException e) {
return "unknown";
}
} else {
return "unknown";
}
}
/**
* Returns the application's name.
* @return the name as it is defined in R.string.app_name
*/
public static String getName() {
return ConversationsPlusApplication.getAppContext().getString(R.string.app_name);
}
/**
* Returns the name and the version of this application.
* @see #getName() and #getVersion
* @return a concatination of name and version with a whitespace in between
*/
public static String getNameAndVersion() {
return getName() + " " + getVersion();
}
}
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