java - 主页启动器强制停止后未收到 Android AppWidget 的按钮单击事件

Question

我有一个应用小部件，点击事件可以在我的提供商的 onUpdate() 中接收。
但是，当我尝试强制关闭主页启动器时，点击事件丢失了。
我什至在所有 onEnabled()、onReceived() 等中都设置了断点:连接似乎丢失了。

因此，如何“重新连接”按钮事件？

WidgetProvider 扩展 AppWidgetProvider:

@Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        Log.d(TAG, "onUpdate()");
        Log.d(TAG, "isLoading: " + CONSTANT.isLoading);
        // update each of the widgets with the remote adapter from updateService
        // Get all ids
        ComponentName thisWidget = new ComponentName(context, ScoreWidgetProvider.class);
        int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);

        // Build the intent to call the service
        Intent intent = new Intent(context.getApplicationContext(), UpdateWidgetService.class);
        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, allWidgetIds);

        // Update the widgets via the service
        context.startService(intent);

//      super.onUpdate(context, appWidgetManager, appWidgetIds);
    }  

UpdateWidgetService 扩展服务:

@Override
        public void onStart(Intent intent, int startId) {

            Log.i(TAG, "Called");

            AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(getApplicationContext());

            int[] appWidgetIds = intent.getIntArrayExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS);

            for (int i = 0; i < appWidgetIds.length; ++i) {
                // Here we setup the intent which points to the StackViewService which will
                // provide the views for this collection.
                Intent remoteViewsIntent = new Intent(this.getApplicationContext(), ScoreWidgetRemoteViewsService.class);
                remoteViewsIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
                // When intents are compared, the extras are ignored, so we need to embed the extras
                // into the data so that the extras will not be ignored.
                remoteViewsIntent.setData(Uri.parse(remoteViewsIntent.toUri(Intent.URI_INTENT_SCHEME)));
                RemoteViews rv = new RemoteViews(this.getApplicationContext().getPackageName(), R.layout.widget_layout);
                rv.setRemoteAdapter(appWidgetIds[i], R.id.score_list, remoteViewsIntent);

                // Set the empty view to be displayed if the collection is empty.  It must be a sibling
                // view of the collection view.
                rv.setEmptyView(R.id.score_list, R.id.empty_view);

                // Bind the click intent for the refresh button on the widget
                final Intent refreshIntent = new Intent(this.getApplicationContext(), ScoreWidgetProvider.class);
                refreshIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                refreshIntent.setAction(ScoreWidgetProvider.REFRESH_ACTION);
                final PendingIntent refreshPendingIntent = PendingIntent
                        .getBroadcast(this.getApplicationContext(), 0, refreshIntent, PendingIntent.FLAG_UPDATE_CURRENT);
                rv.setOnClickPendingIntent(R.id.btn_refresh, refreshPendingIntent);

                appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
            }

    //        stopSelf();

            super.onStart(intent, startId);
        }

Answer 1

确保您在 onStart 函数中使用了正确的上下文。查看代码的 onStart 部分中的 getApplicationContext，传入错误类型的上下文会导致错误。这是更多信息的链接:Context .