Android OnUpdate()未调用小部件服务
我正在为我的应用程序开发一个小部件。Widget name是history,当用户浏览任何URL时,我会将其存储在本地数据库中,该数据库将列出其中的Widget 当我打开小部件时,它从本地数据库获取所有详细信息,并在小部件的列表视图中显示 1) 当我打开小部件时,调用WidgetProvider的第一个onUpdate方法 2) 然后onUpdate()将调用服务WidgetService 3) 然后服务将调用小部件工厂,使用本地存储的数据库更新列表视图 在widget factory中,它将获取db值并更新widget中的LisView 以上是设置小部件时发生的过程。 头等舱:Android OnUpdate()未调用小部件服务,android,listview,android-widget,android-syncadapter,Android,Listview,Android Widget,Android Syncadapter,我正在为我的应用程序开发一个小部件。Widget name是history,当用户浏览任何URL时,我会将其存储在本地数据库中,该数据库将列出其中的Widget 当我打开小部件时,它从本地数据库获取所有详细信息,并在小部件的列表视图中显示 1) 当我打开小部件时,调用WidgetProvider的第一个onUpdate方法 2) 然后onUpdate()将调用服务WidgetService 3) 然后服务将调用小部件工厂,使用本地存储的数据库更新列表视图 在widget factory中,它将获
public class WidgetProviderFavorite extends AppWidgetProvider {
@SuppressWarnings("deprecation")
@Override
public void onUpdate(Context ctxt, AppWidgetManager appWidgetManager,int[] appWidgetIds) {
for (int i=0; i<appWidgetIds.length; i++) {
Intent svcIntent=new Intent(ctxt, WidgetServiceFavorite.class);
svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));
RemoteViews widget=new RemoteViews(ctxt.getPackageName(),R.layout.widget_favorite);
widget.setRemoteAdapter(appWidgetIds[i], R.id.listFavoriteLogin,svcIntent);
Intent clickIntent=new Intent(ctxt, WidgetActivityFavorite.class);
PendingIntent clickPI=PendingIntent.getActivity(ctxt, 0,clickIntent,PendingIntent.FLAG_UPDATE_CURRENT);
widget.setPendingIntentTemplate(R.id.listFavoriteLogin, clickPI);
appWidgetManager.updateAppWidget(appWidgetIds[i], widget);
}
super.onUpdate(ctxt, appWidgetManager, appWidgetIds);
}
public class WidgetServiceFavorite extends RemoteViewsService {
@Override
public RemoteViewsFactory onGetViewFactory(Intent intent) {
return(new WidgetFactoryFavorite(this.getApplicationContext(),intent));
}
}
第三个类:将获取并更新listview
在construtor和getViewAt()中完成的抓取(自动调用)将设置值
public class WidgetFactoryFavorite extends Activity implements RemoteViewsService.RemoteViewsFactory {
public WidgetFactoryFavorite(Context ctxt, Intent intent) {
int array_Index=0;
int array_Length=0;
WidgetDatabase db1=new WidgetDatabase(ctxt);
List<WidgetDatabaseModel> facorite = db1.getFavorite();
array_Length=facorite.size();
mNames=new String[array_Length];
mSummary=new String[array_Length];
for (WidgetDatabaseModel cn : facorite) {
mNames[array_Index] =cn.getNAME();
mSummary[array_Index]= cn.getSUMMARY();
array_Index++;
}
this.mCtxt=ctxt;
intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
AppWidgetManager.INVALID_APPWIDGET_ID);
}
@Override
public void onCreate() {
// no-op
}
@Override
public void onDestroy() {
// no-op
}
@Override
public int getCount() {
return(mNames.length);
}
@Override
public RemoteViews getViewAt(int position) {
RemoteViews row=new RemoteViews(mCtxt.getPackageName(),
R.layout.widget_rowfavorite);
row.setTextViewText(android.R.id.text1, mNames[position]);
Intent i=new Intent();
Bundle extras=new Bundle();
extras.putString(WidgetProviderFavorite.sExtra_Guid, mGuid[position]);
extras.putString(WidgetProviderFavorite.sExtra_Url, mUrl[position]);
i.putExtras(extras);
row.setOnClickFillInIntent(android.R.id.text1, i);
return(row);
}
@Override
public RemoteViews getLoadingView() {
return(null);
}
@Override
public int getViewTypeCount() {
return(1);
}
@Override
public long getItemId(int position) {
return(position);
}
@Override
public boolean hasStableIds() {
return(true);
}
@Override
public void onDataSetChanged() {
}
}
它正在调用onUpdate方法()。但是onUpdate不调用服务类,服务类将调用工厂类,并使用新的数据库值更新lisview。当新值添加到db中时,我前面提到的流没有发生
为什么不调用服务方法
或任何其他方法在数据库值更改时刷新列表视图
我们必须在onUpdate方法()中调用notifyAppWidgetViewDataChanged()
完成OnUpdate():
公共类WidgetProviderFavorite扩展了AppWidgetProvider{
@抑制警告(“弃用”)
@凌驾
public void onUpdate(上下文ctxt,AppWidgetManager,AppWidgetManager,int[]appWidgetIds){
对于(int i=0;我想任何人都可以给我一些建议。我从上周起就被卡住了…无法解决这个问题。在我这边,更新呼叫,但listview上的服务是服务部分没有呼叫,尽管我呼叫NotifyAppWidgetViewDataChanged,但你救了我一天!
int[] ids = AppWidgetManager.getInstance(mActivity).getAppWidgetIds(new ComponentName(mActivity, WidgetProviderFavorite.class));
WidgetProviderFavorite myWidget = new WidgetProviderFavorite();
myWidget.onUpdate(mActivity, AppWidgetManager.getInstance(mActivity),ids);
appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetIds[i], R.id.listView);
public class WidgetProviderFavorite extends AppWidgetProvider {
@SuppressWarnings("deprecation")
@Override
public void onUpdate(Context ctxt, AppWidgetManager appWidgetManager,int[] appWidgetIds) {
for (int i=0; i<appWidgetIds.length; i++) {
Intent svcIntent=new Intent(ctxt, WidgetServiceFavorite.class);
svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));
RemoteViews widget=new RemoteViews(ctxt.getPackageName(),R.layout.widget_favorite);
widget.setRemoteAdapter(appWidgetIds[i], R.id.listFavoriteLogin,svcIntent);
Intent clickIntent=new Intent(ctxt, WidgetActivityFavorite.class);
PendingIntent clickPI=PendingIntent.getActivity(ctxt, 0,clickIntent,PendingIntent.FLAG_UPDATE_CURRENT);
widget.setPendingIntentTemplate(R.id.listFavoriteLogin, clickPI);
appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetIds[i], R.id.listView);
appWidgetManager.updateAppWidget(appWidgetIds[i], widget);
}
super.onUpdate(ctxt, appWidgetManager, appWidgetIds);
}