Set activity title in manifest instead of code

app/src/main/AndroidManifest.xml

@@ -27,6 +27,7 @@
         </activity>
         <activity
             android:name=".ScannerActivity"
+            android:label="Scan a QR code"
             android:theme="@style/AppTheme.Fullscreen"
             android:screenOrientation="portrait"
             android:configChanges="keyboardHidden|orientation|screenSize">

app/src/main/java/me/impy/aegis/ScannerActivity.java

@@ -23,7 +23,6 @@ public class ScannerActivity extends AegisActivity implements ZXingScannerView.R
     @Override
     protected void onCreate(Bundle state) {
         super.onCreate(state);
-        setTitle("Scan a QR code");
 
         _scannerView = new ZXingScannerView(this) {
             @Override