UISplitViewController的详细信息视图仅在iOS8上全屏显示

Question

My UISplitViewController was functioning properly until I compiled the project with the new SDK (iOS 8.0). At some point (when the (void)viewDidAppear:(BOOL)animated of the detail view controller is called) the detail view maximizes to the full screen, covering the master view.

I managed to fix it by using the new displayMode property of the UISplitViewController:

[self.splitViewController setPreferredDisplayMode:UISplitViewControllerDisplayModeAllVisible];

However this property is supported only in iOS8 and now I cannot build for iOS7. Is my only choice now is to download the old SDK?

Answer 1

It sounds like your app was running okay on iOS 7.1, so (happily) you only need to execute that code in versions of iOS that do support it. So what about:

if ([self.splitViewController respondsToSelector:@selector(setPreferredDisplayMode:)]) {
[self.splitViewController setPreferredDisplayMode:UISplitViewControllerDisplayModeAllVisible];

}

Compile with the new SDKs, and be able to run in old and new iOS. You then just need to set your build Deployment Targets appropriately.

Hope this helps.