Custom UIAlertView (Color chooser)
PTColorChooser.png
In this post, I am going to show you how to make a custom UIAlertView, as seen in the above screenshots and this video. The custom UIAlertView is a color picker that is taken right out of my PocketTouch application (available on the AppStore very soon!).
To do anything custom to an alert view, we need to subclass it out. Go ahead and do so, and set up the interface for your UIAlertView like you will see in the following example.
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Dynamic rounded rect drawing w/Multitouch
Some of you might want to do Multi Touch within your application, but are a little confused by Apple’s tutorial at http://developer.apple.com/iphone. Well, I tried to simplify things a little bit.–I made a code sample that simply draws a rounded rect whose size is what you make with your fingers. Read more
Drawing
Want to create a drawing app? Here you go. Clearly, you will need to make improvements to the drawing code, as I literally spent five minutes making this to test something for another app. Regardless, you should be able to get the gist of what’s going on. What I am linking is just your basic standard xcode view based project. The only pertinent part of this are the touchsBegan, touchesMoved, and touchesEnded methods, which I will be posting in this thread.
To draw, simply draw. To move your finger over the screen. To create a dot, tap the screen. To clear the screen, double tap the screen. Simple.