Question

我想从我的应用小部件启动不同的应用程序。小部件是项目列表，单击项目应打开Google Plus等应用程序。按下列表中的项目时没有任何反应。当我删除setData和setComponentName时，会弹出一个对话框，询问要使用的应用程序。是否无法将数据和组件名与appWidget集合上的PendingIntent合并？

我的AppWidgetProvider看起来像这样：

public class StreamsWidgetProvider extends AppWidgetProvider {

    @Override
    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];

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

            ...

            //set service for list view
            Intent listIntent = new Intent(context, StreamsWidgetService.class);
            listIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
            listIntent.setData(Uri.parse(listIntent.toUri(Intent.URI_INTENT_SCHEME)));
            views.setRemoteAdapter(R.id.streamItemsList, listIntent);

            ...

            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
            views.setPendingIntentTemplate(R.id.streamItemsList, pendingIntent);
            appWidgetManager.updateAppWidget(appWidgetId, views);
        }

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

}

StreamsWidgetService看起来像这样：

public class StreamsWidgetService extends RemoteViewsService {
    private static final String TAG = "StreamsWidgetService";

    @Override
    public RemoteViewsFactory onGetViewFactory(Intent intent) {
        return new StreamItemWidgetFactory(intent);
    }

    private class StreamItemWidgetFactory implements RemoteViewsService.RemoteViewsFactory {
        @Override
        public RemoteViews getViewAt(int position) {
            StreamItem item = mItems.get(position);

            RemoteViews rv = new RemoteViews(getPackageName(), R.layout.widget_item);
            ...

            Intent intent = new Intent();
            intent.setData(ContentUris.withAppendedId(StreamItems.CONTENT_URI, item.getId()));

            AccountType at = item.getAccountType();
            intent.setComponent(new ComponentName(at.getPackageName(), at.getViewStreamItemActivity()));
            rv.setOnClickFillInIntent(R.id.streamItemRowId, intent);
            Log.d(TAG, "FillIntent set for " + item.getId() + " at position " + position + " with data " + intent.getDataString() + " and component " + intent.getComponent().toString());

            return rv;
        }

        ...
    }
}

当使用没有fillIntent的普通活动时，这有效：

final AccountType at = item.getAccountType();
final Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(ContentUris.withAppendedId(StreamItems.CONTENT_URI, item.getId()));
intent.setClassName(at.getPackageName(), at.getViewStreamItemActivity());
startActivity(intent);

我该如何解决这个问题？我做错了什么？

Answer 1

我通过对我自己的AppWidgetProvider使用广播意图来解决这个问题。我在onReceive中检查了自己的Action。然后，我使用包名称，类名和数据ID的参数设置fillInIntent。在onReceive方法中使用它我可以创建一个看起来与ListActivity中的intent完全相同的新intent。

在服务中：

Intent intent = new Intent();
intent.putExtra(StreamsWidgetProvider.BROADCAST_PARAM_ITEM_ID, item.getId());
AccountType at = item.getAccountType();
intent.putExtra(StreamsWidgetProvider.BROADCAST_PARAM_CLASS_NAME, at.getViewStreamItemActivity());
intent.putExtra(StreamsWidgetProvider.BROADCAST_PARAM_PACKAGE_NAME, at.getPackageName());

rv.setOnClickFillInIntent(R.id.streamItemRowId, intent);

在AppWidgetProvider中：

public static final String ACTION_START_ACTIVITY = "startActivity";
public static final String BROADCAST_PARAM_ITEM_ID = "intentId";
public static final String BROADCAST_PARAM_PACKAGE_NAME = "intentPackage";
public static final String BROADCAST_PARAM_CLASS_NAME = "intentClassName";

@Override
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];

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

        ...

        Intent intent = new Intent(context, StreamsWidgetProvider.class);
        intent.setAction(ACTION_START_ACTIVITY);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
        views.setPendingIntentTemplate(R.id.streamItemsList, pendingIntent);

        appWidgetManager.updateAppWidget(appWidgetId, views);
    }

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

@Override
public void onReceive(Context context, Intent intent) {
    if(ACTION_START_ACTIVITY.equals(intent.getAction())) {
        long itemId = intent.getLongExtra(BROADCAST_PARAM_ITEM_ID, 0);
        String packageName = intent.getStringExtra(BROADCAST_PARAM_PACKAGE_NAME);
        String className = intent.getStringExtra(BROADCAST_PARAM_CLASS_NAME);

        Intent i = new Intent(Intent.ACTION_VIEW);
        i.setData(ContentUris.withAppendedId(StreamItems.CONTENT_URI, itemId));
        i.setComponent(new ComponentName(packageName, className));
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        context.startActivity(i);
    }

    super.onReceive(context, intent);
}

Answer 2

除非您明确要求，否则PendingIntent不允许填写该组件。

PendingIntent pendingIntent = PendingIntent.getActivity(context,
    0, intent, Intent.FILL_IN_COMPONENT);

请注意，这与其他FILL_IN_*标志的工作方式不同。

AppWidget setFillInIntent无法处理setData或componentName中的数据集？

2 个答案: