Question

我将在主屏幕小部件中设置一个列表视图，以像视频波纹管中的此列表视图一样进行操作。

此视频链接下面的内容是我目前无法显示所有项目的内容，但是找不到在单击列表中的项目时打开链接的方法。

public class WidgetProvider extends AppWidgetProvider {
    public static final String EXTA_LINK = "extraLink";
    public static final String WIDGET_CLICK = "widgetClick";
    /*
     * this method is called every 30 mins as specified on widgetinfo.xml
     * this method is also called on every phone reboot
     */
    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager,
                         int[] appWidgetIds) {
        final int N = appWidgetIds.length;
        /*int[] appWidgetIds holds ids of multiple instance of your widget
         * meaning you are placing more than one widgets on your homescreen*/
        for (int i = 0; i < N; ++i) {
            RemoteViews remoteViews = updateWidgetListView(context,
                    appWidgetIds[i]);
            appWidgetManager.updateAppWidget(appWidgetIds[i], remoteViews);


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

    private RemoteViews updateWidgetListView(Context context, int appWidgetId) {

        //which layout to show on widget
        RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
                R.layout.widget_layout);

        //RemoteViews Service needed to provide adapter for ListView
        Intent svcIntent = new Intent(context, WidgetService.class);
        Intent  clickIntent = new Intent(Intent.ACTION_VIEW);
        clickIntent.setAction(WIDGET_CLICK);
        PendingIntent clickPendingIntent = PendingIntent.getActivity(context, 0,clickIntent,0);
        //passing app widget id to that RemoteViews Service
        svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
        //setting a unique Uri to the intent
        //don't know its purpose to me right now
        svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));
        //setting adapter to listview of the widget
        remoteViews.setRemoteAdapter(appWidgetId, R.id.listViewWidget,
                svcIntent);
        //setting an empty view in case of no data
        remoteViews.setEmptyView(R.id.listViewWidget, R.id.empty_view);
        remoteViews.setPendingIntentTemplate(R.id.listViewWidget, clickPendingIntent);
        return remoteViews;
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction() != null & intent.getAction().equals(WIDGET_CLICK)) {
            String link = intent.getStringExtra(EXTA_LINK); //get the link
            intent.setData(Uri.parse(link)); 
            context.startActivity(intent);
        }
        super.onReceive(context, intent);
    }
}

public class ListProvider implements RemoteViewsFactory {
    private ArrayList<News> listItemList = new ArrayList<News>();
    private Context context = null;
    private int appWidgetId;

    public ListProvider(Context context, Intent intent) {
        this.context = context;
        appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
                AppWidgetManager.INVALID_APPWIDGET_ID);

        populateListItem();
    }
  public RemoteViews getViewAt(int position) {
        final RemoteViews remoteView = new RemoteViews(
                context.getPackageName(), R.layout.list_row);
        News listItem = listItemList.get(position);
        remoteView.setTextViewText(R.id.content, listItem.articleName);
        Intent fillIntent = new Intent();
        fillIntent.putExtra(WidgetProvider.EXTA_LINK,listItem.link);
        remoteView.setOnClickFillInIntent(R.id.content,fillIntent);


        return remoteView;
    }

如果任何人都可以帮助我进行研究，而没有使用onclicklistner的小部件列表视图。

窗口小部件Listview OnclickListener将打开与单击的列表项关联的链接

0 个答案: