强制让控制器竖屏显示
- (BOOL)shouldAutorotate
{
return NO;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskPortrait;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIInterfaceOrientationPortrait;
}
// 隐藏系统状态样
- (BOOL)prefersStatusBarHidden
{
return YES;
}
设置不让SFSafariViewController侧滑返回
Swift:
let viewController = SFSafariViewController(URL: url)
presentViewController(viewController, animated: true) {
for view in viewController.view.subviews {
if let recognisers = view.gestureRecognizers {
for gestureRecogniser in recognisers where gestureRecogniser is UIScreenEdgePanGestureRecognizer {
gestureRecogniser.enabled = false
}
}
}
}
OC:
EFKRSafariViewController *safari = [[EFKRSafariViewController alloc] initWithURL:url];
safari.closeHandler = completion;
[self presentViewController:safari animated:YES completion:^{
// 禁止侧滑返回，因为侧滑返回导致强制竖屏会变回横屏
for (UIView * view in safari.view.subviews) {
NSArray<__kindof UIGestureRecognizer *> * array = view.gestureRecognizers;
if (array.count) {
for (UIScreenEdgePanGestureRecognizer * sepgr in array) {
sepgr.enabled = NO;
}
}
}
}];
如何
创建继承SFSafariViewController的控制器，在里面添加上面的代码就可以啦！
继承SFSafariViewController.png
总结
有时候，我们在修改系统的控件属性时，总是希望想找到一个属性方法设置后，就可以达到自己想要的 UI或者逻辑，但其实，系统不可以提供那么多自定义的 API，所以，我们只能通过自己去找到想要的东西，然后去修复它，达到目的。类似的思想，比如hook。代码上也是很其妙。
参考扩展
- SFSafariViewController in iOS 9.2 | Apple Developer Forums
- ios - Safari View Controller Swipe Left to dismiss goes black - Stack Overflow
注：本文首发于 iHTCboy's blog，如若转载，请注明来源。
