importandroid.content.Contextimportandroidx.loader.app.LoaderManagerimportandroidx.loader.content.AsyncTaskLoaderclassMyDataLoader(context:Context):AsyncTaskLoader<String>(context){overridefunloadInBackground():String{// 在这里执行数据加载任务Thread.sleep(2000)// 模拟耗时操作return"Loaded Data"}overridefunon...
publicclassAppListLoaderextendsAsyncTaskLoader<List<AppEntry>>{privatestaticfinalString TAG = "ADP_AppListLoader";privatestaticfinalbooleanDEBUG =true;finalPackageManager mPm;//包管理器privateList<AppEntry> mApps;//装在应用程序实体的容器//An observer to notify the Loader when new apps are installed/...
下面我们就通过烤面包机和面包师的例子来演示一下AsyncTaskLoader的使用方法。 首先肯定少不了面包师(Baker): packagecom.example.asyncloaderdemo; importjava.util.ArrayList; importjava.util.List; importandroid.content.AsyncTaskLoader; importandroid.content.Context; publicclassBakerextendsAsyncTaskLoader<List<Bre...
第二步:需要写一个自己的AppListLoader ,继承自AsyncTaskLoader,并实现其相关抽象方法。 (1)onStartLoading:注册一些监听器到loader上,并且执行一次forceLoad(); 否则loader不会开始工作 (2)loadInBackground:不用说,在这里就是加载数据并且返回,其实这个数据就返回到了LoaderManager的onLoadFinished方法第二个参数 (3)...
Android.Companion.Virtual Android.Content Android.Content AbstractThreadedSyncAdapter ActivityFlags ActivityNotFoundException AsyncQueryHandler AsyncQueryHandler.WorkerArgs AsyncQueryHandler.WorkerHandler AsyncTaskLoader AsyncTaskLoader 建構函式 屬性 方法 AttributionSource AttributionSource.Builder AttributionSource.Inter...
Android.Appwidget Android.Bluetooth Android.Bluetooth.LE Android.Companion Android.Companion.Virtual Android.Content Android.Content AbstractThreadedSyncAdapter ActivityFlags ActivityNotFoundException AsyncQueryHandler AsyncQueryHandler.WorkerArgs AsyncQueryHandler.WorkerHandler AsyncTaskLoader AsyncTaskLoader 构造函数...
Assembly: Mono.Android.dll Calls #loadInBackground(). C# 复制 [Android.Runtime.Register("onLoadInBackground", "()Ljava/lang/Object;", "GetOnLoadInBackgroundHandler")] protected virtual Java.Lang.Object? OnLoadInBackground(); Returns Object The result of the load operation. Attributes Reg...
listType是一个枚举？o步骤1:创建一个扩展AsyncTaskLoader<D>的自定义Loader类；D:是从使用loadInBack...
you can use IntentService class it has a built-in queue --- just use separate startService() calls for each transfer. you can use Thread -my prefered way you can use Service you can use AsyncTaskLoader but don't useASYNC TASKif u need fire more thanTWO linked with each other at ONCE...
我实现了接口LoaderCallbacks如下：Android开发者都经历过APP UI开发不当 会造成OverDraw，导致APP UI渲染...