现象: Stage中包括一个Window,一个Actor,Window中加入alpha action后,Actor也随之消失:Actor加入alpha action后,不起作用. 解决: 重写draw方法,加入batch.setColor(getColor().r, getColor().g, getColor().b, getColor().a); import com.badlogic.gdx.graphics.g2d.Batch; import com.badlogic.gdx.scene…

In this lesson, you will learn how to create an Action that shows a pop-up window. This type of Action is useful when you want a user to input several parameters in a pop-up dialog before an Action is executed. 在本课中,您将学习如何创建显示弹出窗口的操作.当您希望用户在执行操作之前在弹出…

In this lesson, you will learn how to create an Action with support for option selection. A new View Controller will be implemented and a SingleChoiceAction will be added to it. Via this Action, the Task.Priority and Task.Status properties will be se…

down voteforite I've created a custom UITableViewHeaderFooterView and successfully load from nib into my UITableView but always get this message "Setting the background color on UITableViewHeaderFooterView has been deprecated. Please use contentView.…

鼠标移动到.移出DIV时修改DIV的颜色: 1.Change the font and Div background color--function <div style="width:200px;height:200px;border:1px solid #ccc;color:#555" onmouseover="size()" onmouseout="size1()" id="d1"> sajdaskjdasl…

Learn how to set an SVG as the background image of an element. Background images can be resized by changing the width and height of the element containing background image, so it’s easy to create multiple sizes of the same icon. However, each backgro…

1.模块继承关系: 1.UIButton        ->UIControl  -> UIView 2.UILabel          ->UIview 3.UIImageView  ->UIView 4.UITextField    ->UIControl 对于@selector为什么可以监听:@selector将监听方法注册到”运行循环“,”运行循环“当按钮点击后,通知视图控制器执行@selector的方法 UIControl的剖析: /_______________…

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In the previous Add a Simple Action lesson, you learned how to add an Action by implementing the View Controller. There is another approach that may be more convenient when the Action is intended for a certain business class. In this lesson, you will…

Adding the Action Bar GET STARTED DEPENDENCIES AND PREREQUISITES Android 2.1 or higher YOU SHOULD ALSO READ Action Bar Implementing Effective Navigation DESIGN GUIDE Action Bar The action bar is one of the most important design elements you can imple…