Android开发之触摸事件-点击屏幕获…

.xml文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".MainActivity" >

    <TextView

        android:id="@+id/info"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:text="点击获取屏幕的坐标" />

</LinearLayout>

.java文件

package com.example.touchproject;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnTouchListener;

import android.widget.TextView;

public class MainActivity extends Activity {

private TextView info=null;

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

this.info=(TextView) super.findViewById(R.id.info);

//添加触摸事件

this.info.setOnTouchListener(new TouchListenerImp());

}

private class TouchListenerImp implements OnTouchListener{

public boolean onTouch(View v, MotionEvent event) {

MainActivity.this.info.setText("x="+event.getX()+"y="+event.getY());

return false;

}

}

}