由网友(无因)分享简介：我想用onBack pressed（）方法，同时又想2.0之前提供的Andr​​oid SDK的支持。onBack pressed（）在Android的SDK 2.0中引入。但怎么办呢？I want to use onBackPressed() method and still want to provide su...

我想用onBack pressed（）方法，同时又想2.0之前提供的Andr​​oid SDK的支持。 onBack pressed（）在Android的SDK 2.0中引入。但怎么办呢？

I want to use onBackPressed() method and still want to provide support for Android SDK before 2.0. onBackPressed() is introduced in Android SDK 2.0. but how to do ?

推荐答案

使用的onkeydown;

Using onKeyDown;

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

          // Your Code Here

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