Core Graphicsチュートリアル: グロス(光沢効果)・ボタンの作成
UITapGestureRecognizerとUIButton共用でかつダブルタップ対応の時
UITapGestureRecognizer でタップを検知するとき、シングルタップとダブルタップの両方に対応するために２つ登録する。 UITapGestureRecognizer* g1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)]; g1.numberOfTapsRequired = 1; g1.numberOfTouchesRequired = 1; g1.delegate = self; [self.view addGestureRecognizer:g1]; UITapGestureRecognizer* g2 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selecto
Creating a Glow Effect for UILabel and UIButton
One recent iPhone design mockup called for a glowing effect for a UIButton. This can be accomplished with images, however I needed a series of buttons to have the same glow effect, and it can easily be accomplished with Core Graphics. The first step is to include the Core Graphics headers: #import <QuartzCore/QuartzCore.h> Next, the effect is achieved by using a shadow with no offset (meaning the
Custom UIButtons using Core Graphics instead of images - It's A Feature
In this fairly short article, we’ll take a look at how to create a simple UIButton subclass which represents a pill-shaped two coloured button. During this article, I’m assuming you already have your iOS project set up and know your basic Objective-C, and your way around Xcode. Feel free to ask for more detailed instructions in the comments and I’ll be happy to help you out. Without further ado..
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