Written by 小小厨师
on November 27, 2015

iOS Tips

##持续更新…

git 删除.DS_Store

命令行：find . -name .DS_Store -print0 | xargs -0 git rm -f --ignore-unmatch

调整UIButton属性UIImageView和TitleLabel位置

通过设置UIControl的属性，设置对齐属性：

@property(nonatomic) UIControlContentVerticalAlignment contentVerticalAlignment;     // how to position content vertically inside control. default is center
@property(nonatomic) UIControlContentHorizontalAlignment contentHorizontalAlignment; // how to position content hozontally inside control. default is center

通过UIButton属性，单独设置两个view的位置偏移：

@property(nonatomic)          UIEdgeInsets contentEdgeInsets UI_APPEARANCE_SELECTOR; // default is UIEdgeInsetsZero
@property(nonatomic)          UIEdgeInsets titleEdgeInsets;                // default is UIEdgeInsetsZero
@property(nonatomic)          UIEdgeInsets imageEdgeInsets;                // default is UIEdgeInsetsZero

屏幕旋转问题

iOS设置屏幕旋转可以在VC中重写以下两个方法

// New Autorotation support.
- (BOOL)shouldAutorotate NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
- (UIInterfaceOrientationMask)supportedInterfaceOrientations NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;

但是屏幕旋转依赖的VC却不一样，如果是UITabBarViewController中的VC，则依赖UITabBarViewController,如果是带NavigationController的则依赖NavigationController，重写方法需要写在这两个类中。总得来说如果VC有父类的VC则依赖与父类VC。

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