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How can I detect the touch event of an UIImageView?
...n use that technique for many cases where you really want some area of the screen to act as a button instead of messing with the Touch stuff.
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使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
Add a tooltip to a div
...o do tooltips, and it will work correctly with accessibility software like screen readers.
Demo in Stack Snippets
<div title="Hello, World!">
<label>Name</label>
<input type="text"/>
</div>
...
Learning WebGL and three.js [closed]
...idn't know any 3D programming at all, though I could render objects to the screen.
Since your goal is to create games, I think you'll benefit much from learning some raw WebGL first, even if you end up using a framework like Three.js to help you write your code later.
...
Positioning MKMapView to show multiple annotations at once
...he annotations fine, but I want to resize the map to fit all annotations onscreen at once, and I'm not sure how to do this.
...
Converting Select results into Insert script - SQL Server [closed]
...asks => Generate Scripts
Select temp.table_name in the "Choose Objects" screen, click Next.
In the "Specify how scripts should be saved" screen:
Click Advanced, find the "Types of data to Script" property, select "Data only", close the advanced properties.
Select "Save to new query window" (unl...
how do I use UIScrollView in Interface Builder?
...etting the value to {320, 920} will let the user scroll down a whole extra screen on the iPhone.
(I am using xcode 4.3.3, the project's iOS Deployment Target is 5.1)
When I first did this I received the following error:
Illegal Configuration:
Size type user defined runtime attribu...