Windows Phone 7中实现图片的动态加载和移动

 

时间:2012-11-03 16:50来源:百度空间 作者:lhaix 点击:334次

public partial class slide:PhoneApplicationPage { Imageimg; PointimgLocate; Pointprevious= new Point(-100,-100); public slide() { InitializeComponent(); init(); } private void button1_Click( object sender,RoutedEventArgse) { NavigationService.GoBack(); }

　　

public partial class slide : PhoneApplicationPage
    {
        Image img;
        Point imgLocate;
        Point previous = new Point(-100,-100);
        public slide()
        {
            InitializeComponent();
            init();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            NavigationService.GoBack();
        }

        private void init(){
            img = new Image();
            img.Source = new BitmapImage(new Uri("../img/1.gif", UriKind.Relative));
            Canvas.SetLeft(img, 100);
            Canvas.SetTop(img, 100);
            this.canvasObj.Children.Add(img);
            imgLocate = new Point(100,100);
        }

        private void canvasObj_MouseMove(object sender, MouseEventArgs e)
        {
            //当拖动鼠标时，首先获取当前坐标值。
            double X = e.GetPosition(canvasObj).X;
            double Y = e.GetPosition(canvasObj).Y;
            //计算当前坐标与鼠标上一次的位置之间的差距。
            double deltaX = X - previous.X;
            double deltaY = Y - previous.Y;
            //将当前鼠标位置保存。
            previous = new Point(X, Y);
            imgLocate.X += deltaX;
            imgLocate.Y += deltaY;
            img.SetValue(Canvas.LeftProperty, imgLocate.X);
            img.SetValue(Canvas.TopProperty, imgLocate.Y);
        }

        private void canvasObj_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            previous.X = e.GetPosition(canvasObj).X;
            previous.Y = e.GetPosition(canvasObj).Y;
        }
    }

　　本文来自lhaix的博客，原文地址：http://hi.baidu.com/lhaix/blog/item/bf8ce5dffd9f390d49540316.html