Android widget 需要返回两次

Question

我制作了一个非常简单的小部件，当按下它时会启动一个 Activity ，但由于某种原因，当我按下时 Activity 关闭并且我看到主屏幕但它完全没有响应，直到我再次按下。我不知道为什么会发生这种情况，我唯一的猜测是，也许这是在 Activity 后面也打开的 widgetprovider 无论如何这是代码我正在使用任何想法为什么我必须按两次以退出我的小部件启动的 Activity 将不胜感激

如果重要的话，小部件也在一个单独的包中

list

<receiver android:name="com.gflam.widget.WidgetProvider" >
        <intent-filter>
        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
    </intent-filter>
    <meta-data android:name="android.appwidget.provider"
           android:resource="@xml/widget" />
    </receiver>
<activity android:name="com.gflam.widget.Dialog" android:launchMode="singleInstance" android:noHistory="true" ></activity>

WidgetProvider

public class WidgetProvider extends AppWidgetProvider {

    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        final int N = appWidgetIds.length;

        for (int i=0; i<N; i++) {
            int appWidgetId = appWidgetIds[i];

            Intent intent = new Intent(context, com.gflam.widget.Dialog.class);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);

            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
            views.setOnClickPendingIntent(R.id.widget, pendingIntent);

            appWidgetManager.updateAppWidget(appWidgetId, views);
        }
    }
}

Activity 启动

public class Dialog extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SharedPreferences settings = getSharedPreferences(PREFS_DEVICE, 0);

        final CharSequence[] items = {"1", "2", "3", "4", "5"};
        AlertDialog.Builder builder = new AlertDialog.Builder(Dialog.this);
        builder.setTitle("What would you like to do?");
        builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int item) {
            }
            });
            builder.setPositiveButton("Okay", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    SparseBooleanArray CheCked =((AlertDialog)dialog).getListView().getCheckedItemPositions();
                    if(CheCked.get(0)){

                    }
                    if(CheCked.get(1)){

                    }
                    if(CheCked.get(2)){

                    }
                    if(CheCked.get(3)){

                    }
                    if(CheCked.get(4)){

                    }
                }
            }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    dialog.dismiss();
                }
        }).show();
    }
}

Answer 1

    Dialog dialog = new Dialog(this);
    dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
        @Override
        public void onCancel(DialogInterface dialog) {
            YourActivity.this.finish();
        }
    });

Override dialog onBackPressed()?