2011.09.01（2）——— android 处理双击事件

2011.09.01（2）——— android 处理双击事件
参考：http://lipeng88213.iteye.com/blog/838741

需求：一些透明的button 用来处理软件环境的改变

xml：

<?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:

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idprivate 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;@Overridepublic 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{@Overridepublic 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.currentTimeMillis()-firstClick>300){count = 0;firstId = 0;}count++;if(count==1){firstClick = System.currentTimeMillis();//记录第一次点得按钮的idfirstId = v.getId();}else if(count==2){lastClick = System.currentTimeMillis();//两次点击小于300ms 也就是连续点击if(lastClick-firstClick<300){//第二次点击的button的idint id = v.getId();//判断两次点击的button是否是同一个buttonif(id == firstId){switch(id){case R.id.leftUp:break;case R.id.rightUp:break;case R.id.leftDown:if(isLogOpen){//关闭日志环境Toast.makeText(mContext, "日志关闭", 0).show();}else{//打开日志环境Toast.makeText(mContext, "日志开启", 0).show();}isLogOpen = !isLogOpen;break;case R.id.rightDown:if(isDebugOpen){//关闭调试环境Toast.makeText(mContext, "调试关闭", 0).show();}else{//打开调试环境Toast.makeText(mContext, "调试开启", 0).show();}isDebugOpen = !isDebugOpen;break;}}}clear();}}return false;}//清空状态private void clear(){count = 0;firstClick = 0;lastClick = 0;firstId = 0;}}}

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