java - 传递到BroadcastReceiver的onReceive()中的上下文是什么？

在onReceive的BroadcastReciver方法中传递的上下文是什么:

public void onReceive (Context context, Intent intent)

根据official documentation:

接收者正在运行的上下文。

最佳答案

一些研究得出以下结果...

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());
    }
}

我低于日志

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

用于像这样的bynamic接收者(已注册到Activity MainActivity中)

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());
    }
};

我低于日志

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，在文档The Context in which the receiver is running中给出的语句。