In a regular Android application, you usually have two kinds of Context, Activity and Application. 在一个普通的Android应用程序中,你通常有两种Context,Activity和Application。 Reading the article a little bit further tells about the difference between to the two and why you might want to consider us...
getApplication() is available to Activity and Services only. Although in current Android Activity and Service implementations, getApplication() and getApplicationContext() return the same object, there is no guarantee that this will always be the case (for example, in a specific vendor implementatio...
如在android.view类,它就返回当前view所运行的context,一般情况下是当前的activity的context。而在contentProvider类中,该方法返回的是ApplicationContext(在ActivityThread.installProvider中可以知道)。所以该方法的返回值要根据具体情况具体分析。 了解了所有的获取context相关的函数过后,我们就可以很容易的理解下面的问题了: ...
com.example.fluttertoastimportandroid.app.Activityimportandroid.content.Contextimportandroid.widget.Toastimportandroidx.annotation.NonNull;importio.flutter.embedding.engine.plugins.FlutterPluginimportio.flutter.embedding.engine.plugins.activity.ActivityAwareimportio.flutter.embedding.engine.plugins.activity.ActivityPlug...
首先,显而易见这个问题有不少陷阱,比如这个 View 是自己构造出来的,那肯定它的getContext()返回的是构造它的时候传入的Context类型。 它也可能返回的是 TintContextWrapper 那,如果是 XML 里面的 View 呢,会怎样?可能不少人也知道了另外一个结论:直接继承 Activity 的 Activity 构造出来的 View.getContext() 返...
ConnectivityManager mConnMgr = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE); 1. 2:Android中简单的Http访问 首先通过一个简单的例子使用标准的Java.net API 通过Http Get方法来从指定URL获得一个简单的Html流。Http Get请求只需要把查询参数放入请求的URL中, ...
int statusBarHeight = getStatusBarHeight(window.getContext()); if (rootView != null) { FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) rootView.getLayoutParams(); 代码示例来源:origin: jingle1267/android-utils public Resources getResources() { return window.getContext().getResources(); ...
Returns a configuration for the specified visual Context. C# 复制 [Android.Runtime.Register("get", "(Landroid/content/Context;)Landroid/view/ViewConfiguration;", "")] public static Android.Views.ViewConfiguration? Get (Android.Content.Context context); Parameters context Context A visual Context...
如需詳細資訊,請參閱 android.content.Context#startActivity(Intent, Bundle) Context.startActivity(Intent, Bundle)} 。 傳回 PendingIntent 取得的PendingIntent 屬性 RegisterAttribute 備註 PendingIntent取得,以啟動此產生器到目前為止所建構的工作。 的android.app.TaskStackBuilder.getPendingIntent(int, int, ...
printStackTrace(); throw new RuntimeException(e); } } else { if (!inAppended(names)) { appendOdexesToClassPath(cxt, dexDir, names); } } } Example 2Source File: NativeProtocol.java From Abelana-Android with Apache License 2.0 6 votes public boolean validateSignature(Context context, ...