Android(安卓)拖拽图片

拖拽图片效果
package com.iaiai.activity;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.view.View.OnTouchListener;import android.widget.ImageView;/** *  * <p> * Title: IaiaiActivity.java * </p> * <p> * E-Mail: 176291935@qq.com * </p> * <p> * QQ: 176291935 * </p> * <p> * Http: iaiai.iteye.com * </p> * <p> * Create time: 2011-6-26 * </p> *  * @author 丸子 * @version 0.0.1 */public class IaiaiActivity extends Activity {ImageView img;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);img = (ImageView) findViewById(R.id.img_view);img.setOnTouchListener(new OnTouchListener() {private int mx, my;public boolean onTouch(View v, MotionEvent event) {switch (event.getAction()) {case MotionEvent.ACTION_MOVE:mx = (int) (event.getRawX());my = (int) (event.getRawY() - 50);v.layout(mx - img.getWidth() / 2, my - img.getHeight() / 2,mx + img.getWidth() / 2, my + img.getHeight() / 2);Log.i("****************", "Move");break;case MotionEvent.ACTION_DOWN:Log.i("****************", "Down");break;case MotionEvent.ACTION_UP:Log.i("****************", "Up");break;}return true;}});}}
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