Im Anschluss ist der Code androidWie kann man die Aktivität im angegebenen Android-Code-Snippet nicht pausieren?
runOnUiThread(new Runnable() {
public void run() {
AlertDialog alertDialog;
alertDialog = new AlertDialog.Builder(MainActivity.this).create();
alertDialog.setTitle("Network error");
alertDialog.setMessage("Disconnected");
alertDialog.setButton(AlertDialog.BUTTON_POSITIVE, "ok", new DialogInterface.OnClickListener() {
/** ON clicking oKay button **/
public void onClick(DialogInterface dialog, int id)
{
hasConnectServiceStarted = false;
IP = null;
// Intent intent = getIntent();
Intent intentSplash = new Intent(getApplication().getApplicationContext(), SplashActivity.class);
/** Shutdown the nodemain executor service if
* HOST goes down
*/
nodeMainExecutorService.forceShutdown();
/** and restart the Main Activity that will prompt
* user to reconnect to the HOST once again
*/
// I want current activity to destroy before starting Splash Activity, hence calling onDestroy()
onDestroy();
startActivity(intentSplash);
}
});
alertDialog.show();
}) Schnipsel;
Alles scheint in Ordnung, aber wenn diese Warnung Dialog OK kommt und klicken Sie auf, bekomme ich folgende Fehlermeldung:
java.lang.RuntimeException: Unable to pause activity {edu.arizona.ece573.catgraph/edu.arizona.ece573.catgraph.MainActivity}: java.lang.IllegalStateException: No host at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3293) at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3252) at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:3227) at android.app.ActivityThread.access$1100(ActivityThread.java:154) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1339) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5292) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699) Caused by: java.lang.IllegalStateException: No host at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1235) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1230) at android.support.v4.app.FragmentManagerImpl.dispatchPause(FragmentManager.java:2056) at android.support.v4.app.FragmentController.dispatchPause(FragmentController.java:198) at android.support.v4.app.FragmentActivity.onPause(FragmentActivity.java:401) at android.app.Activity.performPause(Activity.java:6101) at android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1310) at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3279) at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3252) at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:3227) at android.app.ActivityThread.access$1100(ActivityThread.java:154) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1339) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5292) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
Wie soll ich diesen Fehler beheben?
loswerden 'onDestroy();'. Bitte. – Blackbelt
Ich möchte die aktuelle Aktivität zu zerstören, bevor Sie Splash Activity – cybodroid
, das ist auf Android. Rufen Sie 'finish()' anstelle von 'onDestroy()' – Blackbelt