摘要：
1 package com.anjoyo.test; 2 3 import android.app.Activity; 4 import android.os.Bundle; 5 import android.view.KeyEvent; 6 import android.widget.Toast; 7 8 public class TestActivity extends Activity { 9 private long mExitTime;10 11 public void onCreate(Bundle savedInstanceState) {1... 阅读全文