Remove double back key press to close the app

app/src/main/java/net/moasdawiki/app/MainActivity.java

@@ -88,7 +88,6 @@ public class MainActivity extends AppCompatActivity {
     private RequestDispatcher requestDispatcher;
 
     private WebView webview;
-    private long backButtonPressedTimestamp;
 
     private ExecutorService synchronizationExecutorService;
 
@@ -273,19 +272,10 @@ public class MainActivity extends AppCompatActivity {
         if (backForwardList.getCurrentIndex() > 0) {
             webview.goBack();
         } else {
-            long currentTimeMillis = System.currentTimeMillis();
+            // Close app
-            if (backButtonPressedTimestamp + 5000 < currentTimeMillis) {
-                // First click on back button or previous click was more than 5 seconds ago
-                Log.d(TAG, "Back button 1x, show close hint");
-                showToast(getString(R.string.action_back_close_hint));
-                backButtonPressedTimestamp = currentTimeMillis;
-            } else {
-                // Second click on back button within 5 seconds -> close app
-                Log.d(TAG, "Back button 2x, closing app");
             finish();
         }
     }
-    }
 
     public void onConfigurationHintClicked(View view) {
         showSettingsDialog();

app/src/main/res/values-de/strings.xml

@@ -4,7 +4,6 @@
     <string name="about_version">Version %1$s</string>
     <string name="action_help">Hilfe</string>
     <string name="action_about">Über</string>
-    <string name="action_back_close_hint">Erneut drücken um die App zu beenden.</string>
     <string name="action_settings">Einstellungen</string>
     <string name="action_startpage">Startseite</string>
     <string name="action_synchronize">Synchronisieren</string>

app/src/main/res/values/strings.xml

@@ -4,7 +4,6 @@
     <string name="about_homepage_url" translatable="false">https://www.moasdawiki.net/</string>
     <string name="about_version">Version %1$s</string>
     <string name="action_about">About</string>
-    <string name="action_back_close_hint">Press again to exit the app.</string>
     <string name="action_help">Help</string>
     <string name="action_settings">Settings</string>
     <string name="action_startpage">Start page</string>