如果上下文不是活动上下文而是应用程序上下文，那么如何启动Intent [英] How to start an Intent if context is not Activity Context but Application Context

问题描述

我正在尝试从扩展BroadcastReceiver的类开始活动.

I'm trying to start an activity from a class that extends BroadcastReceiver.

public void onReceive(Context context, Intent intent) {

问题在于参数上下文是Application上下文，而不是Activity上下文.

the problem is that parameter context is the Application context and not an Activity context.

有没有一种方法可以使用Application上下文启动意图?

Is there a way start an intent using the Application context?

推荐答案

下面是示例代码，该示例代码如何使用上下文调用另一个活动， 根据您的要求设置标志:

Here is sample code how to call another activity using context, set flag as per your requirement:

public void onReceive(Context context, Intent intent) { 

  Intent startActivity = new Intent();  
  startActivity.setClass(context, xxx.class); 
  startActivity.setAction(xxx.class.getName()); 
  startActivity.setFlags( 
              Intent.FLAG_ACTIVITY_NEW_TASK 
              | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 
  context.startActivity(startActivity); 
}

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