传递给 BroadcastReceiver 的 onReceive() 的 Context 是什么？

传入的上下文是什么onReceive的方法BroadcastReciver:

public void onReceive (Context context, Intent intent)

根据官方文档 http://developer.android.com/reference/android/content/BroadcastReceiver.html#onReceive(android.content.Context,%20android.content.Intent):

接收器运行的上下文。

一些研究给出了以下结果......

对于静态接收器

public class MyReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.e("PANKAJ", "Context class " + context.getClass().getName());
        Log.e("PANKAJ", "Application Context class "
                + context.getApplicationContext().getClass().getName());
    }
}

我得到以下日志

08-05 06:51:33.448: E/PANKAJ(2510): Context class android.app.ReceiverRestrictedContext
08-05 06:51:33.448: E/PANKAJ(2510): Application Context class android.app.Application

对于 bynamic 接收器（注册到 Activity MainActivity 中），例如

private BroadcastReceiver myReceiver = new BroadcastReceiver() {
    public void onReceive(android.content.Context context, Intent intent) {
        Log.e("PANKAJ", "Context class " + context.getClass().getName());
        Log.e("PANKAJ", "Activity Context class "
            + MainActivity.this.getClass().getName());
        Log.e("PANKAJ", "Application Context class "
            + context.getApplicationContext().getClass().getName());
    }
};

我得到以下日志

08-05 06:53:33.048: E/PANKAJ(2642): Context class com.example.testapp.MainActivity
08-05 06:53:33.048: E/PANKAJ(2642): Activity Context class com.example.testapp.MainActivity
08-05 06:53:33.048: E/PANKAJ(2642): Application Context class android.app.Application

因此，当它成为现实时，文档中的陈述接收器运行的上下文 https://developer.android.com/reference/android/content/BroadcastReceiver.html#onReceive(android.content.Context,%20android.content.Intent).