android处理双击事件(2)

        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);