我想用onResume()方法重新启动一个活动.我以为我可以使用Intent来实现它,但这会以无限循环结束.
@Override
protected void onResume() {
Intent intent = new Intent(MainActivity.this,MainActivity.class);
MainActivity.this.startActivity(intent);
finish();
super.onResume();
}
还有另一种重启活动的方法吗？
解决方法
我会问你为什么要这样做……但这是我脑海里浮现的第一件事：
@Override
protected void onCreate(Bundle savedInstanceState) {
...
Log.v("Example","onCreate");
getIntent().setAction("Already created");
}
@Override
protected void onResume() {
Log.v("Example","onResume");
String action = getIntent().getAction();
// Prevent endless loop by adding a unique action,don't restart if action is present
if(action == null || !action.equals("Already created")) {
Log.v("Example","Force restart");
Intent intent = new Intent(this,Example.class);
startActivity(intent);
finish();
}
// Remove the unique action so the next time onResume is called it will restart
else
getIntent().setAction(null);
super.onResume();
}
您应该使“已创建”成为唯一,以便其他任何意图都不会意外地执行此操作.
