widget相关学习

public boolean isSysWidgetExist(String packageName,Context context) {
AppWidgetManager mAppWidgetManager = AppWidgetManager.getInstance(context);
List<AppWidgetProviderInfo> appWidgetProviderInfoList = mAppWidgetManager.getInstalledProviders();
for (AppWidgetProviderInfo info : appWidgetProviderInfoList) {
if (info.provider.getPackageName().equals(packageName)) {
return true;
}
}
return false;
}