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Fix for Game Center leaderboard screens not always responding to touch input in iOS apps that don't use SDL_iPhoneSetAnimationCallback

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This commit is contained in:
DavidLudwig 2012-07-23 00:14:07 -04:00
parent 2368bcb083
commit 4b042442c8
1 changed files with 12 additions and 2 deletions
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14
src/video/uikit/SDL_uikitevents.m
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@ -57,14 +57,24 @@ UIKit_PumpEvents(_THIS)
*/
if (setjmp(*jump_env()) == 0) {
/* if we're setting the jump, rather than jumping back */
/* Let the run loop run for a short amount of time: long enough for
touch events to get processed (which is important to get certain
elements of Game Center's GKLeaderboardViewController to respond
to touch input), but not long enough to introduce a significant
delay in the rest of the app.
*/
const CFTimeInterval seconds = 0.000002;
/* Pump most event types. */
SInt32 result;
do {
result = CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, TRUE);
result = CFRunLoopRunInMode(kCFRunLoopDefaultMode, seconds, TRUE);
} while (result == kCFRunLoopRunHandledSource);
/* Make sure UIScrollView objects scroll properly. */
do {
result = CFRunLoopRunInMode((CFStringRef)UITrackingRunLoopMode, 0, TRUE);
result = CFRunLoopRunInMode((CFStringRef)UITrackingRunLoopMode, seconds, TRUE);
} while(result == kCFRunLoopRunHandledSource);
}
}