android - 从其他 Activity 重启 Activity

Question

我有两个 Activity A 和 B。我想在从 A Activity 转到 B Activity 时重新启动 B Activity ，我该怎么做？

Intent send_show = new Intent(A.this, B.class);
startActivty(send_show);

Answer 1

要“重新启动”，您只需这样做:

Intent send_show = new Intent(B.this, A.class);
finish(); //here restart the B because you are on B class
startActivty(send_show);

否则你可以调用recreate()

编辑

因为你想“重启”定时器，你可以这样做:

public void onDestroy(){
  super.onDestroy();
  //you should restart timer or just cancel and re active it in onCreate() 
}