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我想寫一個簡單的啓動程序應用程序。在那我試圖添加一個像android的默認小部件clock.I加載默認小部件的所有信息,如x, y位置,寬度和高度以及包裝信息。加載後,我得到了主屏幕的appwidgetId。代碼是這樣的。如何添加一個小部件的代碼到主屏幕
public void bindAppWidgets(Launcher.DesktopBinder binder,
LinkedList<WidgetInfo> appWidgets) {
if (!appWidgets.isEmpty()) {
for(int k=0;k<appWidgets.size();k++){
final WidgetInfo item = appWidgets.get(k);
System.out.println("Item to be added in the view :::::::::"+item.toString());
int appWidgetId = item.appWidgetId;
if(item.itemType == LauncherProvider.Widgets.ITEM_TYPE_DEFAULT_APPWIDGET){
bindDefaultAppwidgets(item);
continue;
item.appWidgetId=mAppWidgetHost.allocateAppWidgetId();
LauncherModel.updateItemInDatabase(getApplicationContext(), item);
appWidgetId=item.appWidgetId;
}
final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
System.out.println("the Appwidget info is*******"+appWidgetInfo);
item.hostView =(LauncherAppWidgetHostView) mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
if (LOGD) {
d(TAG, String.format("about to setAppWidget for id=%d, info=%s", appWidgetId,
appWidgetInfo));
}
item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
item.hostView.setTag(item);
MyAbsoluteLayout.LayoutParams lp=new MyAbsoluteLayout.LayoutParams(item.spanX, item.spanY, item.cellX, item.cellY);
System.out.println("after load the hostview ::::::::::: :::::::::"+item.toString());
mDragLayer.addView(item.hostView,lp);
}
mDragLayer.requestLayout();
}
}
現在我得到了在該AppWidgetProviderInfo.because小部件空值,我無法裝入在homescreen.Can的hostview任何一個建議我用了appwidgetpicker應用程序添加在主屏幕上的小部件。