是否有可能改变这个code：

Is it possible to change this code:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {

    }
    return super.onKeyDown(keyCode, event);
}

这样，当我点击后退按钮它就像一个home键？

so that when I click on back button it works like a home button?

推荐答案

试试这个，

@Override
    public void onBackPressed() {
        Intent backtoHome = new Intent(Intent.ACTION_MAIN);
        backtoHome.addCategory(Intent.CATEGORY_HOME);
        backtoHome.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(backtoHome);
    }

添加到您的活动，将使它看起来像你的应用程序的响应主页按钮的Click事件

Adding this to your Activity, will make it look like your app is responding to a Home Button Click event