make recording activity not crash if microphone was in use. fixes #3160

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

@@ -67,7 +67,8 @@ public class RecordingActivity extends Activity implements View.OnClickListener
 		super.onStart();
 		if (!startRecording()) {
 			this.binding.shareButton.setEnabled(false);
-			Toast.makeText(this, R.string.unable_to_start_recording, Toast.LENGTH_SHORT).show();
+			this.binding.timer.setTextAppearance(this, R.style.TextAppearance_Conversations_Title);
+			this.binding.timer.setText(R.string.unable_to_start_recording);
 		}
 	}
 
@@ -108,10 +109,17 @@ public class RecordingActivity extends Activity implements View.OnClickListener
 
 	protected void stopRecording(boolean saveFile) {
 		mShouldFinishAfterWrite = saveFile;
-		mRecorder.stop();
+		try {
-		mRecorder.release();
+			mRecorder.stop();
-		mRecorder = null;
+			mRecorder.release();
-		mStartTime = 0;
+		} catch (Exception e) {
+			if (saveFile) {
+				Toast.makeText(this,R.string.unable_to_save_recording, Toast.LENGTH_SHORT).show();
+			}
+		} finally {
+			mRecorder = null;
+			mStartTime = 0;
+		}
 		if (!saveFile && mOutputFile != null) {
 			if (mOutputFile.delete()) {
 				Log.d(Config.LOGTAG,"deleted canceled recording");

src/main/res/layout/activity_recording.xml

@@ -42,6 +42,7 @@
             android:layout_height="wrap_content"
             android:layout_alignParentTop="true"
             android:layout_centerHorizontal="true"
+            android:layout_margin="8dp"
             android:textAppearance="@style/TextAppearance.Conversations.Display2.Monospace"/>
     </RelativeLayout>
 </layout>

src/main/res/values/strings.xml

@@ -127,6 +127,7 @@
     <string name="openpgp_error">OpenKeychain reported an error</string>
     <string name="accept">Accept</string>
     <string name="error">An error has occurred</string>
+    <string name="recording_error">Error</string>
     <string name="your_account">Your account</string>
     <string name="send_presence_updates">Send presence updates</string>
     <string name="receive_presence_updates">Receive presence updates</string>
@@ -725,4 +726,5 @@
     <string name="create_dialog_group_chat_name">Group chat name</string>
     <string name="conference_destroyed">This group chat has been destroyed</string>
     <string name="phone_book">Address book</string>
+    <string name="unable_to_save_recording">Unable to save recording</string>
 </resources>

src/main/res/values/themes.xml

@@ -264,6 +264,7 @@
         <item name="colorAccent">@color/blue_a200</item>
         <item name="color_background_primary">@color/grey50</item>
         <item name="divider">@color/black12</item>
+        <item name="TextSizeTitle">18sp</item>
         <item name="TextSizeBody2">14sp</item>
         <item name="TextSizeDisplay2">45sp</item>
         <item name="android:windowNoTitle">true</item>