android处理双击事件

需求：一些透明的button 用来处理软件环境的改变

xml：

Java代码
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:layout_width="fill_parent"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="fill_parent" android:background="@drawable/splashview"
    >
    <Button
        android:background="@android:color/transparent"
        android:layout_height="30dip"
        android:layout_width="50dip"
        android:id="@+id/leftUp"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_margin="0px"
        android:padding="0px"
        />
    <Button
        android:background="@android:color/transparent"
        android:layout_height="30dip"
        android:layout_width="50dip"
        android:id="@+id/rightUp"
        android:layout_alignParentTop="true"
        android:layout_alignParentRight="true"
        android:layout_margin="0px"
        android:padding="0px"
        />
    <Button
        android:background="@android:color/transparent"
        android:layout_height="30dip"
        android:layout_width="50dip"
        android:id="@+id/leftDown"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_margin="0px"
        android:padding="0px"
        />
    <Button
        android:background="@android:color/transparent"
        android:layout_height="30dip"
        android:layout_width="50dip"
        android:id="@+id/rightDown"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_margin="0px"
        android:padding="0px"
        />
</RelativeLayout>

activity:

Java代码
import android.content.Context;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.Toast;

public class AboutActivity extends Activity {

    private Button leftUp;
    private Button rightUp;
    private Button leftDown;
    private Button rightDown;
    private ButtonOnTouchListener listener = new ButtonOnTouchListener();
    private Context mContext;
    //计算点击的次数
    private int count;
    //第一次点击的时间 long型
    private long firstClick;
    //最后一次点击的时间
    private long lastClick;
    //第一次点击的button的id
    private int firstId;
    //调试环境是否开启
    private boolean isDebugOpen = false;
    //日志环境是否开启
    private boolean isLogOpen = false;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.about);

        mContext = this;
        leftUp = (Button)findViewById(R.id.leftUp);
        rightUp = (Button)findViewById(R.id.rightUp);
        leftDown = (Button)findViewById(R.id.leftDown);
        rightDown = (Button)findViewById(R.id.rightDown);

        leftUp.setOnTouchListener(listener);
        rightUp.setOnTouchListener(listener);
        leftDown.setOnTouchListener(listener);
        rightDown.setOnTouchListener(listener);

    }

    private class ButtonOnTouchListener implements OnTouchListener{

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if(event.getAction()==MotionEvent.ACTION_DOWN){
                //如果第二次点击距离第一次点击时间过长   那么将第二次点击看为第一次点击
                if(firstClick!=0 && firstId!=0 && System.currentTimeM

补充：移动开发 , Android ,