CommonFloatView.java

package com.withiter.quhao.view;

import android.content.Context;
import android.view.MotionEvent;
import android.view.WindowManager;
import android.widget.ListView;

import com.withiter.quhao.QHClientApplication;
import com.withiter.quhao.util.QuhaoLog;

public class CommonFloatView extends ListView {

	private float mTouchStartX;
	private float mTouchStartY;
	private float x;
	private float y;
	private static final String TAG = CommonFloatView.class.getName();

	private WindowManager wm = (WindowManager) getContext()
			.getApplicationContext().getSystemService("window");

	// 此wmParams为获取的全局变量，用以保存悬浮窗口的属性
	private WindowManager.LayoutParams wmParams = ((QHClientApplication) getContext()
			.getApplicationContext()).getMywmParams();

	public CommonFloatView(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
	}

//	@Override
//	public boolean onTouchEvent(MotionEvent event) {
//		return move(event);
//	}
	
	
	private boolean move(MotionEvent event){
		// getRawX()获取相对屏幕的坐标，即以屏幕左上角为原点
				x = event.getRawX();
				y = event.getRawY() - 25; // 25是系统状态栏的高度
				QuhaoLog.i(TAG, "currX" + x + "====currY" + y);
				switch (event.getAction()) {
				case MotionEvent.ACTION_DOWN:
					// getX()获取相对View的坐标，即以此View左上角为原点
					mTouchStartX = event.getX();
					mTouchStartY = event.getY();

					QuhaoLog.i(TAG, "startX" + mTouchStartX + "====startY"
							+ mTouchStartY);

					break;
				case MotionEvent.ACTION_MOVE:
					updateViewPosition();
					break;

				case MotionEvent.ACTION_UP:
					updateViewPosition();
					mTouchStartX = mTouchStartY = 0;
					break;
				}
				return true;
	}

	private void updateViewPosition() {
		// 更新浮动窗口位置参数,x是鼠标在屏幕的位置，mTouchStartX是鼠标在图片的位置
		wmParams.x = (int) (x - mTouchStartX);
		wmParams.y = (int) (y - mTouchStartY);
		wm.updateViewLayout(this, wmParams);
		
		QuhaoLog.i(TAG, "wmParams.x:"+wmParams.x);
		QuhaoLog.i(TAG, "wmParams.y"+wmParams.y);

	}
}