How to finish Activity when starting other activity in Android?

Question

I have problems to finish the activity before. I want to start another activity and finish the current activity. When I used finish it didn't exit the current activity.

How can I exit the activity before?

Answer 1

您需要首先使用intent当前context的其他活动startActivity.之后,你可以finish你目前activity从您重定向哪里.

 Intent intent = new Intent(this, FirstActivity.class);// New activity
 intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 startActivity(intent);
 finish(); // Call once you redirect to another activity

intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP) - 清除活动堆栈.如果您不想清除活动堆栈.然后,PLease不使用该标志.

Answer 2

最好的——也是最简单的——解决方案可能是这样的：

Intent intent = new Intent(this, OtherActivity.class);
startActivity(intent);
finishAndRemoveTask();

文档finishAndRemoveTask()：

当您的活动完成并且应该关闭并且任务应该作为完成任务的根活动的一部分被完全删除时调用它。

这就是你要找的吗？

Answer 3

Intent i = new Intent(this,Here is your first activity.Class);
    i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    startActivity(i);
    finish();