Open Radar

 
Summary:
The virtual-keyboards leak memory, some of them more, some of them less. When they leaked too much, the app crashes due to low memory.

Steps to Reproduce:
1. Open the attached project
2. Perform it on an iPad, preferably on an iPad 3 (on Retina Devices it leaks more memory than on non-Retina devices, and the iPad 3 only has 512MB Ram) 
3. Tap on the textfield
4. To crash the app the fastest way, select the “Chinese (Simplified) - Handwriting”-keyboard. I didn’t try all the keyboards, Emoji seemed fine on the first look.
5. Rotate the iPad until it crashes

You may use the “testCrash”-UI-test that is contained inside the app that rotates the iPad constantly.
I also attached a screenshot of instruments, as the keyboard has eaten up 3GB inside our app until the App crashed.

Expected Results:
Virtual keyboards should not leak memory. It is fine that they cash their appearance once, but it is no ok that they don’t release old memory.

Actual Results:
Over the time, they eat more and more space until they may crash your app.

Regression:
-

Notes:
-