My button doesn't detect touch events on iPhone (Retina 4-inch) simulator, but works in iPhone (Retina 3.5-inch) simulator

iphone ios ios6 iphone-5
BeachRunnerFred picture BeachRunnerFred · Sep 19, 2012 · Viewed 10.5k times · Source

I'm getting my app ready for the iPhone 5 using the simulator and I've found a weird issue where a couple of my buttons, in one of my views, don't work in the iPhone (Retina 4-inch) simulator, but work fine in the iPhone (Retina 3.5-inch) simulator. The buttons simply don't do anything when they're tapped. Has anyone else experienced this issue?

I having a difficult time figuring out where to start with this one. Any suggestions on where to start?

Thanks so much in advance for all your wisdom!

Answer

Brian Stormont picture Brian Stormont · Oct 31, 2012

You need to edit your MainWindow.xib and enable "Full Screen at Launch". For a more detailed explanation, see Apple's docs:

Important: When creating your window in Interface Builder, it is recommended that you enable the Full Screen at Launch option in the attributes inspector. If this option is not enabled and your window is smaller than the screen of the target device, touch events will not be received by some of your views. This is because windows (like all views) do not receive touch events outside of their bounds rectangle. Because views are not clipped to the window’s bounds by default, the views still appear visible but events do not reach them. Enabling the Full Screen at Launch option ensures that the window is sized appropriately for the current screen.

Complete document from Apple

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