https://nickharris.wordpress.com/2016/02/10/uialertcontroller-nsoperation/[......]

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UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
content.body = body;
content.userInfo = userInfo;
content.sound = [UNNotificationSound defaultSound];
[content setValue:@(YES) forKeyPath:@"shouldAlwaysAlertWhil[......]

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传统做法是在viewcontroller上设置navigationController的interactivePopGesturerecovnezer，但是bug很多，推荐如下，在nav controller上的做法：
class C4MVTNavigationController: UINavigationController {

// MARK: - Property
override var supportedInterfaceOrientations: UIIn[......]

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传送门：http://stackoverflow.com/questions/6325457/getting-the-frame-of-a-particular-tab-bar-item

我稍微改了一下：
- (CGRect)frameForTabInTabBarWithIndex:(NSUInteger)index
{
NSMutableArray *tabBarItems = [NSMutableArray arrayWithCapacity:[self.tabBar.i[......]

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TNV架构下，部分旋转这个功能，实现起来比较蛋疼，给一个目前的方法。

1、自定义TabBar：
extension C4MVTTabBarController: UITabBarControllerDelegate {
func tabBarControllerSupportedInterfaceOrientations(_ tabBarController: UITabBarController) -> UIInterfaceOrientationMask {[......]

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