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UICollectionView auto scroll to cell at IndexPath
...than once it seems to render the collectionView unscrollable(iOS simulator iPhone 5/iOS 8)
– maz
Oct 20 '14 at 5:19
1
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to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...found is usually no. When I first started my game, I was working with the iPhone 3G. As my game grew in complexity, I began to see some lag, but with the newer devices it was completely unnoticeable. Now I have plenty of action going on, and the only lag seems to be a drop in 1-3 fps when playing...
scale Image in an UIButton to AspectFit?
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it seems like image quality is reduced. i am testing on iphone 6 plus. Is it true? I also have 3x image.
– Khant Thu Linn
Feb 23 '15 at 8:56
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网
...这里是单字节0x01，表示高电平）
signed - 表示values数据是否是有符号的数值（假表示无符号）
serviceUuid - 服务UUID，通俗来讲它就是硬件的唯一身份ID
characteristicUuid - 特性UUID，通俗来讲它是硬件中某一功能的唯一身份ID
UUID...
Disabling user selection in UIWebView
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I am using this technique in a web app for Android / iPhone (packaged with Trigger.IO) and found it would only work with the chaining syntax for the :not() pseudo-class, :
*:not(input):not(textarea) {
-webkit-user-select: none; /* disable selection/Copy of UIWebView */
-we...
Setting direction for UISwipeGestureRecognizer
I want to add simple swipe gesture recognition to my view based iPhone project. Gestures in all directions (right, down, left, up) should be recognized.
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UITableView is starting with an offset in iOS 7
...this issue in iPad popover view, when I didn't notice any similar issue in iPhone storyboard.
– Mike Keskinov
Apr 30 '14 at 18:34
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Storyboard doesn't contain a view controller with identifier
...one. I tried removing the other localizations (one of which is the one my iPhone uses) but still had the error. In the end I had to recreate the other localizations with the new VC in each of them.
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Xcode iOS project only shows “My Mac 64-bit” but not simulator or device
...OS project is only showing "My Mac 64-bit" rather than the Simulator or my iPhone to build to. I have no idea why this is happening. I do not think that I have changed anything.
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Convert an NSURL to an NSString
...e user can choose an image either from the built-in app images or from the iphone photo library. I use an object Occasion that has an NSString property to save the imagePath .
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