package com.luohaibo.testdemo08; import android.os.Bundle; import android.app.Activity; import android.util.Log; import android.view.KeyEvent; import android.view.Menu; import android.view.View; import android.widget.Toast; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } //按键按下事件 @Override public boolean onKeyDown(int keyCode, KeyEvent event) { // TODO Auto-generated method stub //输出按键代码 Log.d("onkeyDown:KeyCode", String.valueOf(keyCode)); //输入按键的重复次数 Log.d("onKeyCodeDown:RepeatCount", String.valueOf(event.getRepeatCount())); //如果重复次数到了200(8秒左右),显示提示信息 if (event.getRepeatCount() == 200) { Toast.makeText(this, "已经按了一会儿,累了吧,该松开了", Toast.LENGTH_LONG).show(); } //如果按下的是“菜单”按钮,输出日志信息 if (keyCode == KeyEvent.KEYCODE_MENU) { Log.d("onKeyDown", "MenuKey Down"); } return super.onKeyDown(keyCode, event); } //按键抬起事件 @Override public boolean onKeyUp(int keyCode, KeyEvent event) { // TODO Auto-generated method stub if (keyCode == KeyEvent.KEYCODE_MENU) { Log.d("onKeyUp", "MenuKey Up"); } return super.onKeyUp(keyCode, event); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }