iOS11系统tabbar高度适配
解决方法是，在Info.plist 里面增加 Launch screen interface file base name 就可以了。
注意：只是增加一个 key。Launch screen interface file base name
iPhone X Push 过程中 TabBar位置上移适配
在UINavigationController的基类重写pushViewController代理方法，在Push的时候修正一下TabBar的frame
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
{
if (self.childViewControllers.count >= 1) {
viewController.hidesBottomBarWhenPushed = YES;
}
[super pushViewController:viewController animated:animated];
// 修正push控制器tabbar上移问题
if (@available(iOS 11.0, *)){
// 修改tabBra的frame
CGRect frame = self.tabBarController.tabBar.frame;
frame.origin.y = [UIScreen mainScreen].bounds.size.height - frame.size.height;
self.tabBarController.tabBar.frame = frame;
}
}
李明杰刷新适配
在AppDelegate里面添加下面的方法并调用
#pragma mark 适配iOS11
-(void)adaptationIOSSystem{
if (@available(iOS 11.0, *)) {
[[UIScrollView appearance] setContentInsetAdjustmentBehavior:UIScrollViewContentInsetAdjustmentNever];
// 去掉iOS11系统默认开启的self-sizing
[UITableView appearance].estimatedRowHeight = 0;
[UITableView appearance].estimatedSectionHeaderHeight = 0;
[UITableView appearance].estimatedSectionFooterHeight = 0;
}
}
跳转可编辑相册
出现列表显示不全
self.picker = [[UIImagePickerController alloc] init];//初始化self.picker.allowsEditing = YES;//设置可编辑
self.picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
self.picker.delegate = self;
[self presentViewController:self.picker animated:YES completion:nil];//进入相册界面
正是因为全局设置了UIScrollView.appearance.contentInsetAdjustmentBehavior，导致系统相册出现的问题（出现列表显示不全）
在进入的时候
if (@available(iOS 11, *)) {
UIScrollView.appearance.contentInsetAdjustmentBehavior =UIScrollViewContentInsetAdjustmentAutomatic;
}
在选择照片或退出时候
if (@available(iOS 11, *)) {
[UIScrollViewappearance].contentInsetAdjustmentBehavior =UIScrollViewContentInsetAdjustmentNever;
}
适配宏定义
// UIScreen width.
#define LL_ScreenWidth [UIScreen mainScreen].bounds.size.width
// UIScreen height.
#define LL_ScreenHeight [UIScreen mainScreen].bounds.size.height
// iPhone X
#define LL_iPhoneX (LL_ScreenWidth == 375.f && LL_ScreenHeight == 812.f ? YES : NO)
// Status bar height.
#define LL_StatusBarHeight (LL_iPhoneX ? 44.f : 20.f)
// Navigation bar height.
#define LL_NavigationBarHeight 44.f
// Tabbar height.
#define LL_TabbarHeight (LL_iPhoneX ? (49.f+34.f) : 49.f)
// Tabbar safe bottom margin.
#define LL_TabbarSafeBottomMargin (LL_iPhoneX ? 34.f : 0.f)
// Status bar & navigation bar height.
#define LL_StatusBarAndNavigationBarHeight (LL_iPhoneX ? 88.f : 64.f)
#define LL_ViewSafeAreInsets(view) ({UIEdgeInsets insets; if(@available(iOS 11.0, *)) {insets = view.safeAreaInsets;} else {insets = UIEdgeInsetsZero;} insets;})
