十万元保底分成合同:一起学Windows phone7开发(五.一个时钟的例子)
Express blend工具是开发silverlight Ui的重要工具,在这里有一个从silverlight移植过来的时钟小例子可以看出在Phone7上这个工具一样也很重要并且可以提高开发效率。
一.在blend工具中,可以用Ellipse绘制表盘,通过在property中使用渐变色来产生立体效果。还可以能过gradient工具来调整渐变色。
二.用Ellipse工具绘制表针轴,并设置圆的strokethickness来改变线的粗细。
三.用Rectangle工具来绘制三个表针,并放好位置。
四.增加动画效果
Storyboard.TargetName="HourHandTransform" Storyboard.TargetProperty="Angle" Duration="12:0:0" RepeatBehavior="Forever" To="360" /> Storyboard.TargetName="MinuteHandTransform" Storyboard.TargetProperty="Angle" Duration="1:0:0" RepeatBehavior="Forever" To="360" /> Storyboard.TargetName="SecondHandTransform" Storyboard.TargetProperty="Angle" Duration="0:1:0" RepeatBehavior="Forever" To="360" /> 这时运行一下,已经可以看到表针在走了。 五.控制表针行为语句 void MainPage_Loaded(object sender, RoutedEventArgs e) { // The current date and time. System.DateTime currentDate = DateTime.Now; // Find the appropriate angle (in degrees) for the hour hand // based on the current time. double hourangle = (((float)currentDate.Hour) / 12) * 360 + currentDate.Minute / 2; // The same as for the minute angle. double minangle = (((float)currentDate.Minute) / 60) * 360; // The same for the second angle. double secangle = (((float)currentDate.Second) / 60) * 360; // Set the beginning of the animation (From property) to the angle // corresponging to the current time. hourAnimation.From = hourangle; // Set the end of the animation (To property)to the angle // corresponding to the current time PLUS 360 degrees. Thus, the // animation will end after the clock hand moves around the clock // once. Note: The RepeatBehavior property of the animation is set // to "Forever" so the animation will begin again as soon as it completes. hourAnimation.To = hourangle + 360; // Same as with the hour animation. minuteAnimation.From = minangle; minuteAnimation.To = minangle + 360; // Same as with the hour animation. secondAnimation.From = secangle; secondAnimation.To = secangle + 360; this.clockStoryboard.Begin(); } 源代码: