Navigation的被偷换StatusBar以及透明的各种坑

IOS8 UIImagePickerController会偷换StatusBar的颜色

使用NavigationControllerDelegate中的函数进行检查

//防止ImagePickerController偷换StatusBar
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    if ([navigationController isKindOfClass:[UIImagePickerController class]] &&((UIImagePickerController *) navigationController).sourceType == UIImagePickerControllerSourceTypePhotoLibrary) {
        [[UIApplication sharedApplication] setStatusBarHidden:NO];
        [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent animated:NO];
    }
}

UIImagePickerController的另外一个坑

pickerController在选取相机时候会自动隐藏statusBar 需要结束时候手动改为显示

纯透明的NavigationBar怎么设置

[[UIImage alloc]init]得到的UIImage就是纯透明的

[[UINavigationBar appearance] setBackgroundImage:[[UIImage alloc]init] forBarMetrics:UIBarMetricsDefault];

纯透明的NavigaitonBar怎么会有一个细线

那个细线是系统NavigationBar自带的叫ShadowImage的一个UIImageView,也给设置成透明就可以了

[[UINavigationBar appearance] setShadowImage:[[UIImage alloc]init]];

赏

请问老板还招人么(/ω＼)

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