improves remote file status display and loading of remote files

13 files changed, 401 insertions, 336 deletions

diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/ConferenceDetailsActivity.java b/src/main/java/de/thedevstack/conversationsplus/ui/ConferenceDetailsActivity.java
index 7ea83b92..1125b37e 100644
--- a/src/main/java/de/thedevstack/conversationsplus/ui/ConferenceDetailsActivity.java
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/ConferenceDetailsActivity.java
@@ -308,7 +308,7 @@ public class ConferenceDetailsActivity extends XmppActivity implements OnConvers
 	}
 
 	@Override
-	protected String getShareableUri() {
+	public String getShareableUri() {
 		if (mConversation != null) {
 			return "xmpp:" + mConversation.getJid().toBareJid().toString() + "?join";
 		} else {
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/ContactDetailsActivity.java b/src/main/java/de/thedevstack/conversationsplus/ui/ContactDetailsActivity.java
index be6a5994..245b7a38 100644
--- a/src/main/java/de/thedevstack/conversationsplus/ui/ContactDetailsActivity.java
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/ContactDetailsActivity.java
@@ -171,7 +171,7 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 	}
 
 	@Override
-	protected String getShareableUri() {
+	public String getShareableUri() {
 		if (contact != null) {
 			return contact.getShareableUri();
 		} else {
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/ConversationActivity.java b/src/main/java/de/thedevstack/conversationsplus/ui/ConversationActivity.java
index 0167ef4b..69c1f817 100644
--- a/src/main/java/de/thedevstack/conversationsplus/ui/ConversationActivity.java
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/ConversationActivity.java
@@ -46,7 +46,6 @@ import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import de.thedevstack.android.logcat.Logging;
-import de.thedevstack.conversationsplus.entities.Presence;
 import de.thedevstack.conversationsplus.services.filetransfer.FileTransferManager;
 import de.thedevstack.conversationsplus.utils.AccountUtil;
 import de.thedevstack.conversationsplus.utils.UIHelper;
@@ -149,7 +148,7 @@ public class ConversationActivity extends XmppActivity
 	}
 
 	@Override
-	protected String getShareableUri() {
+	public String getShareableUri() {
 		Conversation conversation = getSelectedConversation();
 		if (conversation != null) {
 			return conversation.getAccount().getShareableUri();
@@ -1251,12 +1250,12 @@ public class ConversationActivity extends XmppActivity
 					Jid jid = getSelectedConversation().getJid();
 					try {
 						Jid next = Jid.fromParts(jid.getLocalpart(), jid.getDomainpart(), nick);
-						this.mConversationFragment.privateMessageWith(next);
+						this.privateMessageWith(next);
 					} catch (final InvalidJidException ignored) {
 						//do nothing
 					}
 				} else {
-					this.mConversationFragment.highlightInConference(nick);
+					this.highlightNickInConference(nick);
 				}
 			} else {
 				this.mConversationFragment.appendText(text);
@@ -1275,6 +1274,14 @@ public class ConversationActivity extends XmppActivity
 		}
 	}
 
+	public void privateMessageWith(Jid jid) {
+        this.mConversationFragment.privateMessageWith(jid);
+    }
+
+    public void highlightNickInConference(String nick) {
+	    this.mConversationFragment.highlightInConference(nick);
+    }
+
 	private boolean selectConversationByUuid(String uuid) {
 		if (uuid == null) {
 			return false;
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/ConversationFragment.java b/src/main/java/de/thedevstack/conversationsplus/ui/ConversationFragment.java
index 528e2a55..cd2ee4f8 100644
--- a/src/main/java/de/thedevstack/conversationsplus/ui/ConversationFragment.java
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/ConversationFragment.java
@@ -64,8 +64,6 @@ import de.thedevstack.conversationsplus.services.XmppConnectionService;
 import de.thedevstack.conversationsplus.ui.XmppActivity.OnPresenceSelected;
 import de.thedevstack.conversationsplus.ui.XmppActivity.OnValueEdited;
 import de.thedevstack.conversationsplus.ui.adapter.MessageAdapter;
-import de.thedevstack.conversationsplus.ui.adapter.MessageAdapter.OnContactPictureClicked;
-import de.thedevstack.conversationsplus.ui.adapter.MessageAdapter.OnContactPictureLongClicked;
 import de.thedevstack.conversationsplus.ui.listeners.ConversationSwipeRefreshListener;
 import de.thedevstack.conversationsplus.ui.listeners.DeleteFileCallback;
 import de.thedevstack.conversationsplus.utils.AccountUtil;
@@ -454,54 +452,6 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 		messagesView = (ListView) view.findViewById(R.id.messages_view);
 		messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 		messageListAdapter = new MessageAdapter((ConversationActivity) getActivity(), this.messageList);
-		messageListAdapter.setOnContactPictureClicked(new OnContactPictureClicked() {
-
-			@Override
-			public void onContactPictureClicked(Message message) {
-				if (message.getStatus() <= Message.STATUS_RECEIVED) {
-					if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
-						if (message.getCounterpart() != null) {
-							String user = message.getCounterpart().isBareJid() ? message.getCounterpart().toString() : message.getCounterpart().getResourcepart();
-							if (!message.getConversation().getMucOptions().isUserInRoom(user)) {
-								Toast.makeText(activity,activity.getString(R.string.user_has_left_conference,user),Toast.LENGTH_SHORT).show();
-							}
-							highlightInConference(user);
-						}
-					} else {
-						activity.switchToContactDetails(message.getContact(), message.getFingerprint());
-					}
-				} else {
-					Account account = message.getConversation().getAccount();
-					Intent intent = new Intent(activity, EditAccountActivity.class);
-					intent.putExtra("jid", account.getJid().toBareJid().toString());
-					intent.putExtra("fingerprint", message.getFingerprint());
-					startActivity(intent);
-				}
-			}
-		});
-		messageListAdapter
-				.setOnContactPictureLongClicked(new OnContactPictureLongClicked() {
-
-					@Override
-					public void onContactPictureLongClicked(Message message) {
-						if (message.getStatus() <= Message.STATUS_RECEIVED) {
-							if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
-								if (message.getCounterpart() != null) {
-									String user = message.getCounterpart().getResourcepart();
-									if (user != null) {
-										if (message.getConversation().getMucOptions().isUserInRoom(user)) {
-											privateMessageWith(message.getCounterpart());
-										} else {
-											Toast.makeText(activity, activity.getString(R.string.user_has_left_conference, user), Toast.LENGTH_SHORT).show();
-										}
-									}
-								}
-							}
-						} else {
-							activity.showQrCode();
-						}
-					}
-				});
 		messagesView.setAdapter(messageListAdapter);
 
 		registerForContextMenu(messagesView);
@@ -718,7 +668,7 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 		updateSendButton();
 	}
 
-	protected void highlightInConference(String nick) {
+	public void highlightInConference(String nick) {
 		String oldString = mEditMessage.getText().toString();
 		if (oldString.isEmpty() || mEditMessage.getSelectionStart() == 0) {
 			mEditMessage.getText().insert(0, nick + ": ");
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/EditAccountActivity.java b/src/main/java/de/thedevstack/conversationsplus/ui/EditAccountActivity.java
index 6856bc25..725e10a9 100644
--- a/src/main/java/de/thedevstack/conversationsplus/ui/EditAccountActivity.java
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/EditAccountActivity.java
@@ -376,7 +376,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 	}
 
 	@Override
-	protected String getShareableUri() {
+	public String getShareableUri() {
 		if (mAccount != null) {
 			return mAccount.getShareableUri();
 		} else {
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/VerifyOTRActivity.java b/src/main/java/de/thedevstack/conversationsplus/ui/VerifyOTRActivity.java
index 4f1c9fc7..d6b3d838 100644
--- a/src/main/java/de/thedevstack/conversationsplus/ui/VerifyOTRActivity.java
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/VerifyOTRActivity.java
@@ -424,7 +424,7 @@ public class VerifyOTRActivity extends XmppActivity implements XmppConnectionSer
 	}
 
 	@Override
-	protected String getShareableUri() {
+	public String getShareableUri() {
 		if (mAccount!=null) {
 			return mAccount.getShareableUri();
 		} else {
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/XmppActivity.java b/src/main/java/de/thedevstack/conversationsplus/ui/XmppActivity.java
index 85bc2af3..21292cec 100644
--- a/src/main/java/de/thedevstack/conversationsplus/ui/XmppActivity.java
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/XmppActivity.java
@@ -19,9 +19,6 @@ import android.content.IntentSender.SendIntentException;
 import android.content.ServiceConnection;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
-import android.graphics.Bitmap;
-import android.graphics.Color;
-import android.graphics.Point;
 import android.net.Uri;
 import android.nfc.NdefMessage;
 import android.nfc.NdefRecord;
@@ -41,26 +38,16 @@ import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.CompoundButton;
 import android.widget.EditText;
-import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.Switch;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import com.google.zxing.BarcodeFormat;
-import com.google.zxing.EncodeHintType;
-import com.google.zxing.WriterException;
-import com.google.zxing.common.BitMatrix;
-import com.google.zxing.qrcode.QRCodeWriter;
-import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
-
 import net.java.otr4j.session.SessionID;
 
 import java.util.ArrayList;
-import java.util.Hashtable;
 import java.util.List;
 
-import de.thedevstack.android.logcat.Logging;
 import de.thedevstack.conversationsplus.ConversationsPlusColors;
 import de.thedevstack.conversationsplus.ConversationsPlusPreferences;
 import de.thedevstack.conversationsplus.Config;
@@ -77,6 +64,7 @@ import de.thedevstack.conversationsplus.services.XmppConnectionService;
 import de.thedevstack.conversationsplus.services.XmppConnectionService.XmppConnectionBinder;
 import de.thedevstack.conversationsplus.utils.CryptoHelper;
 import de.thedevstack.conversationsplus.utils.ExceptionHelper;
+import de.thedevstack.conversationsplus.utils.ui.QrCodeUtil;
 import de.thedevstack.conversationsplus.utils.XmppSendUtil;
 import de.thedevstack.conversationsplus.xmpp.OnKeyStatusUpdated;
 import de.thedevstack.conversationsplus.xmpp.OnUpdateBlocklist;
@@ -328,7 +316,7 @@ public abstract class XmppActivity extends Activity {
 				finish();
 				break;
 			case R.id.action_show_qr_code:
-				showQrCode();
+				QrCodeUtil.showQrCode(this);
 				break;
 		}
 		return super.onOptionsItemSelected(item);
@@ -933,7 +921,7 @@ public abstract class XmppActivity extends Activity {
 		}
 	}
 
-	protected String getShareableUri() {
+	public String getShareableUri() {
 		return null;
 	}
 
@@ -959,46 +947,6 @@ public abstract class XmppActivity extends Activity {
 		this.unregisterNdefPushMessageCallback();
 	}
 
-	protected void showQrCode() {
-		String uri = getShareableUri();
-		if (uri!=null) {
-			Point size = new Point();
-			getWindowManager().getDefaultDisplay().getSize(size);
-			final int width = (size.x < size.y ? size.x : size.y);
-			Bitmap bitmap = createQrCodeBitmap(uri, width);
-			ImageView view = new ImageView(this);
-			view.setImageBitmap(bitmap);
-			AlertDialog.Builder builder = new AlertDialog.Builder(this);
-			builder.setView(view);
-			builder.create().show();
-		}
-	}
-
-	protected Bitmap createQrCodeBitmap(String input, int size) {
-		Logging.d(Config.LOGTAG,"qr code requested size: "+size);
-		try {
-			final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
-			final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
-			hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
-			final BitMatrix result = QR_CODE_WRITER.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
-			final int width = result.getWidth();
-			final int height = result.getHeight();
-			final int[] pixels = new int[width * height];
-			for (int y = 0; y < height; y++) {
-				final int offset = y * width;
-				for (int x = 0; x < width; x++) {
-					pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
-				}
-			}
-			final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
-			Logging.d(Config.LOGTAG,"output size: "+width+"x"+height);
-			bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
-			return bitmap;
-		} catch (final WriterException e) {
-			return null;
-		}
-	}
-
 	protected Account extractAccount(Intent intent) {
 		String jid = intent != null ? intent.getStringExtra(EXTRA_ACCOUNT) : null;
 		try {
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/adapter/MessageAdapter.java b/src/main/java/de/thedevstack/conversationsplus/ui/adapter/MessageAdapter.java
index 96b5954e..4991c512 100644
--- a/src/main/java/de/thedevstack/conversationsplus/ui/adapter/MessageAdapter.java
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/adapter/MessageAdapter.java
@@ -1,11 +1,7 @@
 package de.thedevstack.conversationsplus.ui.adapter;
 
-import android.content.ActivityNotFoundException;
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
 import android.graphics.Typeface;
-import android.net.Uri;
+import android.support.annotation.NonNull;
 import android.text.Spannable;
 import android.text.SpannableString;
 
@@ -14,7 +10,6 @@ import android.text.style.ForegroundColorSpan;
 import android.text.style.StyleSpan;
 import android.text.util.Linkify;
 
-import android.util.DisplayMetrics;
 import android.util.Patterns;
 import android.view.View;
 import android.view.View.OnClickListener;
@@ -25,33 +20,30 @@ import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-import android.widget.Toast;
 
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-
-import de.thedevstack.conversationsplus.ConversationsPlusApplication;
 import de.thedevstack.conversationsplus.ConversationsPlusColors;
 import de.thedevstack.conversationsplus.ConversationsPlusPreferences;
 import de.thedevstack.conversationsplus.R;
 import de.thedevstack.conversationsplus.crypto.axolotl.XmppAxolotlSession;
 import de.thedevstack.conversationsplus.entities.Account;
 import de.thedevstack.conversationsplus.entities.Conversation;
-import de.thedevstack.conversationsplus.entities.DownloadableFile;
 import de.thedevstack.conversationsplus.entities.FileParams;
 import de.thedevstack.conversationsplus.entities.Message;
 
 import de.thedevstack.conversationsplus.entities.Transferable;
 import de.thedevstack.conversationsplus.enums.FileStatus;
-import de.thedevstack.conversationsplus.persistance.FileBackend;
-import de.thedevstack.conversationsplus.providers.ConversationsPlusFileProvider;
 import de.thedevstack.conversationsplus.services.avatar.AvatarCache;
 import de.thedevstack.conversationsplus.services.avatar.AvatarService;
-import de.thedevstack.conversationsplus.services.filetransfer.FileTransferStatusEnum;
 import de.thedevstack.conversationsplus.services.filetransfer.http.download.AutomaticFileDownload;
 import de.thedevstack.conversationsplus.ui.ConversationActivity;
+import de.thedevstack.conversationsplus.ui.listeners.ContactPictureOnClickListener;
+import de.thedevstack.conversationsplus.ui.listeners.ContactPictureOnLongClickListener;
+import de.thedevstack.conversationsplus.ui.listeners.OpenFileOnClickListener;
+import de.thedevstack.conversationsplus.ui.listeners.OpenLocationOnClickListener;
 import de.thedevstack.conversationsplus.utils.CryptoHelper;
 import de.thedevstack.conversationsplus.utils.GeoHelper;
 import de.thedevstack.conversationsplus.utils.ImageUtil;
@@ -74,11 +66,6 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 
     private ConversationActivity activity;
 
-    private DisplayMetrics metrics;
-
-    private OnContactPictureClicked mOnContactPictureClickedListener;
-    private OnContactPictureLongClicked mOnContactPictureLongClickedListener;
-
     private OnLongClickListener openContextMenu = new OnLongClickListener() {
 
         @Override
@@ -88,20 +75,9 @@ public class MessageAdapter extends ArrayAdapter<Message> {
         }
     };
 
-
     public MessageAdapter(ConversationActivity activity, List<Message> messages) {
         super(activity, 0, messages);
         this.activity = activity;
-        metrics = getContext().getResources().getDisplayMetrics();
-    }
-
-    public void setOnContactPictureClicked(OnContactPictureClicked listener) {
-        this.mOnContactPictureClickedListener = listener;
-    }
-
-    public void setOnContactPictureLongClicked(
-            OnContactPictureLongClicked listener) {
-        this.mOnContactPictureLongClickedListener = listener;
     }
 
     @Override
@@ -138,9 +114,7 @@ public class MessageAdapter extends ArrayAdapter<Message> {
         String filesize = null;
         String info = null;
         boolean error = false;
-        if (viewHolder.indicatorReceived != null) {
-            viewHolder.indicatorReceived.setVisibility(View.GONE);
-        }
+        ViewUtil.gone(viewHolder.indicatorReceived);
 
         boolean multiReceived = message.getConversation().getMode() == Conversation.MODE_MULTI
                 && message.getStatus() <= Message.STATUS_RECEIVED;
@@ -193,11 +167,76 @@ public class MessageAdapter extends ArrayAdapter<Message> {
                 }
                 break;
         }
-        if (error && type == SENT) {
+
+        this.displayEncryptionIndicator(message, viewHolder);
+
+        this.displayMessageTime(message, viewHolder, filesize, info, error, type == SENT);
+
+        this.displayRemoteFileStatus(message, viewHolder);
+    }
+
+    private void displayRemoteFileStatus(Message message, ViewHolder viewHolder) {
+        if (message.hasFileAttached() && null != message.getFileParams() && null != viewHolder.remoteFileStatus) {
+            FileStatus fileStatus = message.getFileParams().getFileStatus();
+            if (fileStatus == FileStatus.DELETE_FAILED || fileStatus == FileStatus.DELETED || fileStatus == FileStatus.DELETING || fileStatus == FileStatus.NOT_FOUND) {
+                TextViewUtil.visible(viewHolder.remoteFileStatus);
+                switch (fileStatus) {
+                    case DELETE_FAILED:
+                        TextViewUtil.setColor(viewHolder.remoteFileStatus, R.color.error);
+                        viewHolder.remoteFileStatus.setText(R.string.remote_filestatus_delete_failed);
+                        break;
+                    case DELETED:
+                        viewHolder.remoteFileStatus.setText(R.string.remote_filestatus_delete_success);
+                        break;
+                    case DELETING:
+                        viewHolder.remoteFileStatus.setText(R.string.remote_filestatus_delete_inprogress);
+                        break;
+                    case NOT_FOUND:
+                        TextViewUtil.setColor(viewHolder.remoteFileStatus, R.color.error);
+                        viewHolder.remoteFileStatus.setText(R.string.remote_filestatus_not_found);
+                        break;
+                }
+            } else {
+                TextViewUtil.gone(viewHolder.remoteFileStatus);
+            }
+        }
+    }
+
+    private void displayMessageTime(Message message, ViewHolder viewHolder, String filesize, String info, boolean error, boolean isSent) {
+        if (error && isSent) {
             viewHolder.time.setTextColor(ConversationsPlusColors.warning());
         } else {
             viewHolder.time.setTextColor(this.getMessageTextColor(viewHolder.darkBackground, false));
         }
+        String formatedTime = UIHelper.readableTimeDifferenceFull(getContext(), message.getTimeSent());
+        String timeText = null;
+        if (message.getStatus() <= Message.STATUS_RECEIVED) {
+            StringBuilder timeTextBuilder = new StringBuilder();
+            timeTextBuilder.append((null != formatedTime) ? formatedTime + ((null != info || null != filesize) ? " \u00B7 " : "") : "");
+            timeTextBuilder.append((null != filesize) ? filesize + ((null != info) ? " \u00B7 " : "") : "");
+            timeTextBuilder.append((null != info) ? info : "");
+
+            timeText = timeTextBuilder.toString();
+        } else {
+            if ((filesize != null) && (info != null)) {
+                timeText = filesize + " \u00B7 " + info;
+            } else if ((filesize == null) && (info != null)) {
+                if (error) {
+                    timeText = info + " \u00B7 " + formatedTime;
+                } else {
+                    timeText = info;
+                }
+            } else if ((filesize != null) && (info == null)) {
+                timeText = filesize + " \u00B7 " + formatedTime;
+            } else {
+                timeText = formatedTime;
+            }
+        }
+
+        TextViewUtil.setTextWithoutAutoLink(viewHolder.time, timeText);
+    }
+
+    private void displayEncryptionIndicator(Message message, ViewHolder viewHolder) {
         if (message.getEncryption() == Message.ENCRYPTION_NONE) {
             viewHolder.indicator.setVisibility(View.GONE);
         } else {
@@ -228,55 +267,6 @@ public class MessageAdapter extends ArrayAdapter<Message> {
                 }
             }
         }
-
-        String formatedTime = UIHelper.readableTimeDifferenceFull(getContext(), message.getTimeSent());
-        if (message.getStatus() <= Message.STATUS_RECEIVED) {
-            StringBuilder timeText = new StringBuilder();
-            timeText.append((null != formatedTime) ? formatedTime + ((null != info || null != filesize) ? " \u00B7 " : "") : "");
-            timeText.append((null != filesize) ? filesize + ((null != info) ? " \u00B7 " : "") : "");
-            timeText.append((null != info) ? info : "");
-
-            viewHolder.time.setText(timeText);
-        } else {
-            if ((filesize != null) && (info != null)) {
-                viewHolder.time.setText(filesize + " \u00B7 " + info);
-            } else if ((filesize == null) && (info != null)) {
-                if (error) {
-                    viewHolder.time.setText(info + " \u00B7 " + formatedTime);
-                } else {
-                    viewHolder.time.setText(info);
-                }
-            } else if ((filesize != null) && (info == null)) {
-                viewHolder.time.setText(filesize + " \u00B7 " + formatedTime);
-            } else {
-                viewHolder.time.setText(formatedTime);
-            }
-        }
-
-        if (message.hasFileAttached() && null != message.getFileParams() && null != viewHolder.remoteFileStatus) {
-            FileStatus fileStatus = message.getFileParams().getFileStatus();
-            if (fileStatus == FileStatus.DELETE_FAILED || fileStatus == FileStatus.DELETED || fileStatus == FileStatus.DELETING || fileStatus == FileStatus.NOT_FOUND) {
-                TextViewUtil.visible(viewHolder.remoteFileStatus);
-                switch (fileStatus) {
-                    case DELETE_FAILED:
-                        TextViewUtil.setColor(viewHolder.remoteFileStatus, R.color.error);
-                        viewHolder.remoteFileStatus.setText(R.string.remote_filestatus_delete_failed);
-                        break;
-                    case DELETED:
-                        viewHolder.remoteFileStatus.setText(R.string.remote_filestatus_delete_success);
-                        break;
-                    case DELETING:
-                        viewHolder.remoteFileStatus.setText(R.string.remote_filestatus_delete_inprogress);
-                        break;
-                    case NOT_FOUND:
-                        TextViewUtil.setColor(viewHolder.remoteFileStatus, R.color.error);
-                        viewHolder.remoteFileStatus.setText(R.string.remote_filestatus_not_found);
-                        break;
-                }
-            } else {
-                TextViewUtil.gone(viewHolder.remoteFileStatus);
-            }
-        }
     }
 
     private void displayInfoMessage(ViewHolder viewHolder, String text) {
@@ -310,12 +300,7 @@ public class MessageAdapter extends ArrayAdapter<Message> {
     }
 
     private void displayTextMessage(final ViewHolder viewHolder, final Message message) {
-        if (viewHolder.download_button != null) {
-            viewHolder.download_button.setVisibility(View.GONE);
-        }
-            if (null != viewHolder.image) {
-                viewHolder.image.setVisibility(View.GONE);
-            }
+        ViewUtil.gone(viewHolder.download_button, viewHolder.image);
 
         viewHolder.messageBody.setVisibility(View.VISIBLE);
         viewHolder.messageBody.setIncludeFontPadding(true);
@@ -427,10 +412,7 @@ public class MessageAdapter extends ArrayAdapter<Message> {
         String filename = UIHelper.getDisplayFilename(message);
         fileInfos.append((null != filename && !filename.isEmpty()) ? (filename) : "");
 
-        int oldAutoLinkMask = viewHolder.messageBody.getAutoLinkMask();
-        viewHolder.messageBody.setAutoLinkMask(0);
-        viewHolder.messageBody.setText(fileInfos);
-        viewHolder.messageBody.setAutoLinkMask(oldAutoLinkMask);
+        TextViewUtil.setTextWithoutAutoLink(viewHolder.messageBody, fileInfos);
     }
 
     private void displayDownloadableMessage(ViewHolder viewHolder, final Message message) {
@@ -471,12 +453,7 @@ public class MessageAdapter extends ArrayAdapter<Message> {
             btnText = activity.getString(R.string.open_x_file, UIHelper.getFileDescriptionString(activity, message));
         }
 
-        this.displayDownloadButton(viewHolder, btnText, new OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                openDownloadable(message);
-            }
-        });
+        this.displayDownloadButton(viewHolder, btnText, new OpenFileOnClickListener(this.activity, message));
 
     }
 
@@ -485,35 +462,22 @@ public class MessageAdapter extends ArrayAdapter<Message> {
         viewHolder.messageBody.setVisibility(View.GONE);
         viewHolder.download_button.setVisibility(View.VISIBLE);
         viewHolder.download_button.setText(R.string.show_location);
-        viewHolder.download_button.setOnClickListener(new OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                showLocation(message);
-            }
-        });
+        viewHolder.download_button.setOnClickListener(new OpenLocationOnClickListener(this.activity, message));
 
         viewHolder.download_button.setOnLongClickListener(openContextMenu);
     }
 
     private void displayImageMessage(ViewHolder viewHolder, final Message message) {
-        if (viewHolder.download_button != null) {
-            viewHolder.download_button.setVisibility(View.GONE);
-        }
+        ViewUtil.gone(viewHolder.download_button);
 
         ImageUtil.loadBitmap(message, viewHolder.image, viewHolder.messageBody, true);
 
-        viewHolder.image.setOnClickListener(new OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                openDownloadable(message);
-            }
-        });
+        viewHolder.image.setOnClickListener(new OpenFileOnClickListener(this.activity, message));
 
         viewHolder.image.setOnLongClickListener(openContextMenu);
     }
 
     private View displayStatusMessage(final Message message, ViewHolder viewHolder) {
-        if (null != viewHolder) {
         final Conversation conversation = message.getConversation();
 
         viewHolder.status_message.setVisibility(View.VISIBLE);
@@ -524,12 +488,17 @@ public class MessageAdapter extends ArrayAdapter<Message> {
             viewHolder.contact_picture.setAlpha(0.5f);
         }
         viewHolder.status_message.setText(message.getBody());
-        }
 
         return viewHolder.view;
     }
 
     private void displayFileMessage(final Message message, ViewHolder viewHolder) {
+        if (!(message.trusted()
+                && MessageUtil.needsDownload(message)
+                && ConversationsPlusPreferences.autoAcceptFileSize() > 0
+                && message.isHttpUploaded() || ConversationsPlusPreferences.autoDownloadFileLink())) {
+            new AutomaticFileDownload(false).transferFile(message);
+        }
         Transferable transferable = message.getTransferable();
         if (FileStatus.CHECKING_FILE_SIZE == message.getFileParams().getFileStatus()) {
             displayInfoMessage(viewHolder, activity.getString(R.string.checking_remote_filesize));
@@ -579,31 +548,9 @@ public class MessageAdapter extends ArrayAdapter<Message> {
             if (null != imageView) {
                 AvatarService.getInstance().loadAvatar(message, imageView);
 
-                imageView.setOnClickListener(new OnClickListener() {
-
-                    @Override
-                    public void onClick(View v) {
-                        if (MessageAdapter.this.mOnContactPictureClickedListener != null) {
-                            MessageAdapter.this.mOnContactPictureClickedListener
-                                    .onContactPictureClicked(message);
-                        }
-
-                    }
-                });
+                imageView.setOnClickListener(new ContactPictureOnClickListener(this.activity, message));
                 if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
-                    imageView.setOnLongClickListener(new OnLongClickListener() {
-
-                        @Override
-                        public boolean onLongClick(View v) {
-                            if (MessageAdapter.this.mOnContactPictureLongClickedListener != null) {
-                                MessageAdapter.this.mOnContactPictureLongClickedListener
-                                        .onContactPictureLongClicked(message);
-                                return true;
-                            } else {
-                                return false;
-                            }
-                        }
-                    });
+                    imageView.setOnLongClickListener(new ContactPictureOnLongClickListener(this.activity, message));
                 }
             }
         }
@@ -630,7 +577,7 @@ public class MessageAdapter extends ArrayAdapter<Message> {
         return activity.getLayoutInflater().inflate(viewResId, parent, false);
     }
 
-    private ViewHolder initializeViewHolderAndView(Message message, int type, ViewGroup parent) {
+    private ViewHolder initializeViewHolderAndView(int type, ViewGroup parent) {
         View view = initializeView(type, parent);
         ViewHolder viewHolder = new ViewHolder(view);
         if (SENT == type
@@ -667,15 +614,18 @@ public class MessageAdapter extends ArrayAdapter<Message> {
     }
 
     @Override
-    public View getView(int position, View view, ViewGroup parent) {
+    public View getView(int position, View view, @NonNull ViewGroup parent) {
         final Message message = getItem(position);
+        if (null == message) {
+            return view;
+        }
         final boolean isInValidSession = message.isValidInSession();
         final Conversation conversation = message.getConversation();
         final Account account = conversation.getAccount();
         final int type = getItemViewType(position);
         ViewHolder viewHolder;
         if (null == view) {
-            viewHolder = initializeViewHolderAndView(message, type, parent);
+            viewHolder = initializeViewHolderAndView(type, parent);
             view = viewHolder.view;
         } else {
             viewHolder = (ViewHolder) view.getTag();
@@ -694,33 +644,11 @@ public class MessageAdapter extends ArrayAdapter<Message> {
         this.displayStatus(viewHolder, message, type);
 
         if (null != message.getTransferable() || message.hasFileAttached() || MessageUtil.hasDownloadableLink(message)) {
-            if (!(message.trusted()
-                    && MessageUtil.needsDownload(message)
-                    && ConversationsPlusPreferences.autoAcceptFileSize() > 0
-                    && message.isHttpUploaded() || ConversationsPlusPreferences.autoDownloadFileLink())) {
-                new AutomaticFileDownload(false).transferFile(message);
-            }
             displayFileMessage(message, viewHolder);
         } else if (GeoHelper.isGeoUri(message.getBody())) {
             displayLocationMessage(viewHolder, message);
         } else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
-            if (activity.hasPgp()) {
-                if (account.getPgpDecryptionService().isRunning()) {
-                    displayInfoMessage(viewHolder, activity.getString(R.string.message_decrypting));
-                } else {
-                    displayInfoMessage(viewHolder, activity.getString(R.string.pgp_message));
-                }
-            } else {
-                displayInfoMessage(viewHolder, activity.getString(R.string.install_openkeychain));
-                if (viewHolder != null) {
-                    viewHolder.message_box.setOnClickListener(new OnClickListener() {
-                                @Override
-                                public void onClick(View v) {
-                                    activity.showInstallPgpDialog();
-                                }
-                            });
-                }
-            }
+            displayPgpEncryptedMessage(viewHolder, account);
         } else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
             displayDecryptionFailed(viewHolder);
         } else {
@@ -740,67 +668,22 @@ public class MessageAdapter extends ArrayAdapter<Message> {
         return view;
     }
 
-    public void openDownloadable(Message message) {
-        DownloadableFile file = FileBackend.getFile(message);
-        if (!file.exists()) {
-            Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
-            return;
-        }
-        boolean bInPrivateStorage = false;
-        if (file.getAbsolutePath().startsWith(FileBackend.getPrivateFileDirectoryPath())) {
-            bInPrivateStorage = true;
-        }
-        Intent openIntent = new Intent(Intent.ACTION_VIEW);
-        String mime = file.getMimeType();
-        if (mime == null) {
-            mime = "*/*";
-        }
-        Uri uri;
-        if (bInPrivateStorage) {
-            uri = ConversationsPlusFileProvider.createUriForPrivateFile(file);
+    private void displayPgpEncryptedMessage(ViewHolder viewHolder, Account account) {
+        if (activity.hasPgp()) {
+            if (account.getPgpDecryptionService().isRunning()) {
+                displayInfoMessage(viewHolder, activity.getString(R.string.message_decrypting));
             } else {
-            uri = Uri.fromFile(file);
-        }
-        openIntent.setDataAndType(uri, mime);
-        PackageManager manager = activity.getPackageManager();
-        List<ResolveInfo> infos = manager.queryIntentActivities(openIntent, 0);
-        if (bInPrivateStorage) {
-            for (ResolveInfo info : infos) {
-                ConversationsPlusApplication.getAppContext().grantUriPermission(info.activityInfo.packageName, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
-            }
-        }
-        if (infos.size() == 0) {
-            openIntent.setDataAndType(uri, "*/*");
-        }
-        if (bInPrivateStorage) {
-            openIntent.putExtra(Intent.EXTRA_STREAM, uri);
-            openIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
-        }
-        try {
-            getContext().startActivity(openIntent);
-            return;
-        } catch (ActivityNotFoundException e) {
-            //ignored
-        }
-        Toast.makeText(activity, R.string.no_application_found_to_open_file, Toast.LENGTH_SHORT).show();
-    }
-
-    public void showLocation(Message message) {
-        for (Intent intent : GeoHelper.createGeoIntentsFromMessage(message)) {
-            if (intent.resolveActivity(getContext().getPackageManager()) != null) {
-                getContext().startActivity(intent);
-                return;
-            }
+                displayInfoMessage(viewHolder, activity.getString(R.string.pgp_message));
             }
-        Toast.makeText(activity, R.string.no_application_found_to_display_location, Toast.LENGTH_SHORT).show();
+        } else {
+            displayInfoMessage(viewHolder, activity.getString(R.string.install_openkeychain));
+            viewHolder.message_box.setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    activity.showInstallPgpDialog();
                 }
-
-    public interface OnContactPictureClicked {
-        void onContactPictureClicked(Message message);
+            });
         }
-
-    public interface OnContactPictureLongClicked {
-        void onContactPictureLongClicked(Message message);
     }
 
     private static class ViewHolder {
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/listeners/ContactPictureOnClickListener.java b/src/main/java/de/thedevstack/conversationsplus/ui/listeners/ContactPictureOnClickListener.java
new file mode 100644
index 00000000..e3c85fdf
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/listeners/ContactPictureOnClickListener.java
@@ -0,0 +1,48 @@
+package de.thedevstack.conversationsplus.ui.listeners;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.view.View;
+import android.widget.Toast;
+
+import de.thedevstack.conversationsplus.R;
+import de.thedevstack.conversationsplus.entities.Account;
+import de.thedevstack.conversationsplus.entities.Conversation;
+import de.thedevstack.conversationsplus.entities.Message;
+import de.thedevstack.conversationsplus.ui.ConversationActivity;
+import de.thedevstack.conversationsplus.ui.EditAccountActivity;
+
+/**
+ */
+public class ContactPictureOnClickListener implements View.OnClickListener {
+    private final ConversationActivity activity;
+    private final Message message;
+
+    public ContactPictureOnClickListener(ConversationActivity activity, Message message) {
+        this.activity = activity;
+        this.message = message;
+    }
+
+    @Override
+    public void onClick(View view) {
+        if (message.getStatus() <= Message.STATUS_RECEIVED) { // What does this mean?
+            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
+                if (message.getCounterpart() != null) {
+                    String user = message.getCounterpart().isBareJid() ? message.getCounterpart().toString() : message.getCounterpart().getResourcepart();
+                    if (!message.getConversation().getMucOptions().isUserInRoom(user)) {
+                        Toast.makeText(activity, activity.getString(R.string.user_has_left_conference,user),Toast.LENGTH_SHORT).show();
+                    }
+                    this.activity.highlightNickInConference(user);
+                }
+            } else {
+                this.activity.switchToContactDetails(message.getContact(), message.getFingerprint());
+            }
+        } else {
+            Account account = message.getConversation().getAccount();
+            Intent intent = new Intent(activity, EditAccountActivity.class);
+            intent.putExtra("jid", account.getJid().toBareJid().toString());
+            intent.putExtra("fingerprint", message.getFingerprint());
+            this.activity.startActivity(intent);
+        }
+    }
+}
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/listeners/ContactPictureOnLongClickListener.java b/src/main/java/de/thedevstack/conversationsplus/ui/listeners/ContactPictureOnLongClickListener.java
new file mode 100644
index 00000000..49ff764b
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/listeners/ContactPictureOnLongClickListener.java
@@ -0,0 +1,43 @@
+package de.thedevstack.conversationsplus.ui.listeners;
+
+import android.view.View;
+import android.widget.Toast;
+
+import de.thedevstack.conversationsplus.R;
+import de.thedevstack.conversationsplus.entities.Conversation;
+import de.thedevstack.conversationsplus.entities.Message;
+import de.thedevstack.conversationsplus.ui.ConversationActivity;
+import de.thedevstack.conversationsplus.utils.ui.QrCodeUtil;
+
+/**
+ */
+public class ContactPictureOnLongClickListener implements View.OnLongClickListener {
+    private final ConversationActivity activity;
+    private final Message message;
+
+    public ContactPictureOnLongClickListener(ConversationActivity activity, Message message) {
+        this.activity = activity;
+        this.message = message;
+    }
+
+    @Override
+    public boolean onLongClick(View view) {
+        if (message.getStatus() <= Message.STATUS_RECEIVED) {
+            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
+                if (message.getCounterpart() != null) {
+                    String user = message.getCounterpart().getResourcepart();
+                    if (user != null) {
+                        if (message.getConversation().getMucOptions().isUserInRoom(user)) {
+                            this.activity.privateMessageWith(message.getCounterpart());
+                        } else {
+                            Toast.makeText(activity, activity.getString(R.string.user_has_left_conference, user), Toast.LENGTH_SHORT).show();
+                        }
+                    }
+                }
+            }
+        } else {
+            QrCodeUtil.showQrCode(this.activity);
+        }
+        return true;
+    }
+}
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/listeners/OpenFileOnClickListener.java b/src/main/java/de/thedevstack/conversationsplus/ui/listeners/OpenFileOnClickListener.java
new file mode 100644
index 00000000..e0dcd4bf
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/listeners/OpenFileOnClickListener.java
@@ -0,0 +1,81 @@
+package de.thedevstack.conversationsplus.ui.listeners;
+
+import android.app.Activity;
+import android.content.ActivityNotFoundException;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.view.View;
+import android.widget.Toast;
+
+import java.util.List;
+
+import de.thedevstack.conversationsplus.ConversationsPlusApplication;
+import de.thedevstack.conversationsplus.R;
+import de.thedevstack.conversationsplus.entities.DownloadableFile;
+import de.thedevstack.conversationsplus.entities.Message;
+import de.thedevstack.conversationsplus.persistance.FileBackend;
+import de.thedevstack.conversationsplus.providers.ConversationsPlusFileProvider;
+
+/**
+ */
+public class OpenFileOnClickListener implements View.OnClickListener {
+    private final Activity activity;
+    private final Message message;
+
+    public OpenFileOnClickListener(Activity activity, Message message) {
+        this.activity = activity;
+        this.message = message;
+    }
+
+    @Override
+    public void onClick(View view) {
+        this.openFile();
+    }
+
+    public void openFile() {
+        DownloadableFile file = FileBackend.getFile(message);
+        if (!file.exists()) {
+            Toast.makeText(this.activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
+            return;
+        }
+        boolean bInPrivateStorage = false;
+        if (file.getAbsolutePath().startsWith(FileBackend.getPrivateFileDirectoryPath())) {
+            bInPrivateStorage = true;
+        }
+        Intent openIntent = new Intent(Intent.ACTION_VIEW);
+        String mime = file.getMimeType();
+        if (mime == null) {
+            mime = "*/*";
+        }
+        Uri uri;
+        if (bInPrivateStorage) {
+            uri = ConversationsPlusFileProvider.createUriForPrivateFile(file);
+        } else {
+            uri = Uri.fromFile(file);
+        }
+        openIntent.setDataAndType(uri, mime);
+        PackageManager manager = this.activity.getPackageManager();
+        List<ResolveInfo> infos = manager.queryIntentActivities(openIntent, 0);
+        if (bInPrivateStorage) {
+            for (ResolveInfo info : infos) {
+                ConversationsPlusApplication.getAppContext().grantUriPermission(info.activityInfo.packageName, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
+            }
+        }
+        if (infos.size() == 0) {
+            openIntent.setDataAndType(uri, "*/*");
+        }
+        if (bInPrivateStorage) {
+            openIntent.putExtra(Intent.EXTRA_STREAM, uri);
+            openIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        }
+        try {
+            this.activity.startActivity(openIntent);
+            return;
+        } catch (ActivityNotFoundException e) {
+            //ignored
+        }
+        Toast.makeText(this.activity, R.string.no_application_found_to_open_file, Toast.LENGTH_SHORT).show();
+    }
+}
diff --git a/src/main/java/de/thedevstack/conversationsplus/ui/listeners/OpenLocationOnClickListener.java b/src/main/java/de/thedevstack/conversationsplus/ui/listeners/OpenLocationOnClickListener.java
new file mode 100644
index 00000000..8e0b7893
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/ui/listeners/OpenLocationOnClickListener.java
@@ -0,0 +1,37 @@
+package de.thedevstack.conversationsplus.ui.listeners;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.view.View;
+import android.widget.Toast;
+
+import de.thedevstack.conversationsplus.R;
+import de.thedevstack.conversationsplus.entities.Message;
+import de.thedevstack.conversationsplus.utils.GeoHelper;
+
+/**
+ */
+public class OpenLocationOnClickListener implements View.OnClickListener {
+    private final Activity activity;
+    private final Message message;
+
+    public OpenLocationOnClickListener(Activity activity, Message message) {
+        this.activity = activity;
+        this.message = message;
+    }
+
+    @Override
+    public void onClick(View view) {
+        this.showLocation();
+    }
+
+    private void showLocation() {
+        for (Intent intent : GeoHelper.createGeoIntentsFromMessage(this.message)) {
+            if (intent.resolveActivity(this.activity.getPackageManager()) != null) { // Only if the intent can be opened
+                this.activity.startActivity(intent);
+                return;
+            }
+        }
+        Toast.makeText(this.activity, R.string.no_application_found_to_display_location, Toast.LENGTH_SHORT).show();
+    }
+}
diff --git a/src/main/java/de/thedevstack/conversationsplus/utils/ui/QrCodeUtil.java b/src/main/java/de/thedevstack/conversationsplus/utils/ui/QrCodeUtil.java
new file mode 100644
index 00000000..1c342290
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/utils/ui/QrCodeUtil.java
@@ -0,0 +1,68 @@
+package de.thedevstack.conversationsplus.utils.ui;
+
+import android.app.AlertDialog;
+import android.graphics.Bitmap;
+import android.graphics.Color;
+import android.graphics.Point;
+import android.widget.ImageView;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.WriterException;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.qrcode.QRCodeWriter;
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
+
+import java.util.Hashtable;
+
+import de.thedevstack.android.logcat.Logging;
+import de.thedevstack.conversationsplus.Config;
+import de.thedevstack.conversationsplus.ui.XmppActivity;
+
+/**
+ */
+public final class QrCodeUtil {
+
+    public static void showQrCode(XmppActivity activity) {
+        String uri = activity.getShareableUri();
+        if (uri != null) {
+            Point size = new Point();
+            activity.getWindowManager().getDefaultDisplay().getSize(size);
+            final int width = (size.x < size.y ? size.x : size.y);
+
+            Bitmap bitmap = QrCodeUtil.createQrCodeBitmap(uri, width);
+            ImageView view = new ImageView(activity);
+            view.setImageBitmap(bitmap);
+            AlertDialog.Builder builder = new AlertDialog.Builder(activity);
+            builder.setView(view);
+            builder.create().show();
+        }
+    }
+
+    public static Bitmap createQrCodeBitmap(String input, int size) {
+        Logging.d(Config.LOGTAG,"qr code requested size: "+size);
+        try {
+            final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
+            final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
+            hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
+            final BitMatrix result = QR_CODE_WRITER.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
+            final int width = result.getWidth();
+            final int height = result.getHeight();
+            final int[] pixels = new int[width * height];
+            for (int y = 0; y < height; y++) {
+                final int offset = y * width;
+                for (int x = 0; x < width; x++) {
+                    pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
+                }
+            }
+            final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+            Logging.d(Config.LOGTAG,"output size: "+width+"x"+height);
+            bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
+            return bitmap;
+        } catch (final WriterException e) {
+            return null;
+        }
+    }
+
+    private QrCodeUtil() {}
+}