added dedicated scan button

build.gradle

@@ -73,6 +73,7 @@ android {
         archivesBaseName += "-$versionName"
         applicationId "eu.siacs.conversations"
         resValue "string", "applicationId", applicationId
+        resValue "string", "app_name", "Conversations"
     }
 
     dataBinding {

src/main/java/eu/siacs/conversations/ui/ConversationActivity.java

@@ -257,6 +257,9 @@ public class ConversationActivity extends XmppActivity implements OnConversation
 					return true;
 				}
 				break;
+			case R.id.action_scan_qr_code:
+				UriHandlerActivity.scan(this);
+				return true;
 		}
 		return super.onOptionsItemSelected(item);
 	}

src/main/java/eu/siacs/conversations/ui/ConversationFragment.java

@@ -1616,29 +1616,31 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
 	}
 
 	private void reInit(Conversation conversation) {
-		Log.d(Config.LOGTAG, "reInit()");
+		reInit(conversation, false);
+	}
+
+	private void reInit(Conversation conversation, boolean restore) {
 		if (conversation == null) {
-			Log.d(Config.LOGTAG, "conversation was null :(");
 			return;
 		}
-
 		if (this.activity == null) {
-			Log.d(Config.LOGTAG, "activity was null");
 			this.conversation = conversation;
 			return;
 		}
-
+		Log.d(Config.LOGTAG, "reInit(restore="+Boolean.toString(restore)+")");
 		setupIme();
 		if (this.conversation != null) {
 			final String msg = this.binding.textinput.getText().toString();
 			if (this.conversation.setNextMessage(msg)) {
 				activity.xmppConnectionService.updateConversation(conversation);
 			}
-			if (this.conversation != conversation) {
+			if (this.conversation != conversation && !restore) {
 				updateChatState(this.conversation, msg);
 				messageListAdapter.stopAudioPlayer();
 			}
-			this.conversation.trim();
+			if (!restore) {
+				this.conversation.trim();
+			}
 
 		}
 
@@ -2259,7 +2261,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
 				clearPending();
 				return;
 			}
-			reInit(conversation);
+			reInit(conversation, true);
 		}
 		ActivityResult activityResult = postponedActivityResult.pop();
 		if (activityResult != null) {

src/main/java/eu/siacs/conversations/ui/StartConversationActivity.java

@@ -626,10 +626,7 @@ public class StartConversationActivity extends XmppActivity implements OnRosterU
                 showJoinConferenceDialog(null);
                 return true;
             case R.id.action_scan_qr_code:
-                Intent intent = new Intent(this, UriHandlerActivity.class);
-                intent.setAction(UriHandlerActivity.ACTION_SCAN_QR_CODE);
-                intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
-                startActivity(intent);
+                UriHandlerActivity.scan(this);
                 return true;
             case R.id.action_hide_offline:
                 mHideOfflineContacts = !item.isChecked();

src/main/java/eu/siacs/conversations/ui/UriHandlerActivity.java

@@ -1,5 +1,6 @@
 package eu.siacs.conversations.ui;
 
+import android.app.Activity;
 import android.support.v7.app.AppCompatActivity ;
 import android.content.Intent;
 import android.net.Uri;
@@ -9,6 +10,7 @@ import java.util.Arrays;
 import java.util.List;
 
 import eu.siacs.conversations.Config;
+import eu.siacs.conversations.R;
 import eu.siacs.conversations.persistance.DatabaseBackend;
 import eu.siacs.conversations.utils.XmppUri;
 import eu.siacs.conversations.utils.zxing.IntentIntegrator;
@@ -103,4 +105,11 @@ public class UriHandlerActivity extends AppCompatActivity {
         finish();
         super.onActivityResult(requestCode, requestCode, intent);
     }
+
+    public static void scan(Activity activity) {
+        Intent intent = new Intent(activity, UriHandlerActivity.class);
+        intent.setAction(UriHandlerActivity.ACTION_SCAN_QR_CODE);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
+        activity.startActivity(intent);
+    }
 }

src/main/res/layout/fragment_conversations_overview.xml

@@ -20,6 +20,6 @@
             android:layout_height="wrap_content"
             android:layout_gravity="end|bottom"
             android:layout_margin="16dp"
-            android:src="?attr/icon_new"/>
+            android:src="@drawable/ic_chat_white_24dp"/>
     </FrameLayout>
 </layout>

src/main/res/menu/activity_conversations.xml

@@ -1,5 +1,11 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
       xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/action_scan_qr_code"
+        android:title="@string/scan_qr_code"
+        app:showAsAction="always"
+        android:visible="@bool/show_qr_code_scan"
+        android:icon="?attr/icon_scan_qr_code"/>
     <item
         android:id="@+id/action_accounts"
         android:orderInCategory="90"

src/main/res/values-w945dp/defaults.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <bool name="show_qr_code_scan">false</bool>
+</resources>
+

src/main/res/values/defaults.xml

@@ -41,4 +41,5 @@
     <bool name="never_send">false</bool>
     <bool name="return_to_previous">false</bool>
     <bool name="validate_hostname">false</bool>
+    <bool name="show_qr_code_scan">true</bool>
 </resources>

src/main/res/values/strings.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-	<string name="app_name" translatable="false">Conversations</string>
 	<string name="action_settings">Settings</string>
 	<string name="action_add">New conversation</string>
 	<string name="action_accounts">Manage accounts</string>