这是前提：
QQ20170517-234959@2x.png
以下为步骤：
1.AppDelegate
新加属性 ：
@property (nonatomic, assign) BOOL allowRotate;
重写方法：
-(UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
NSLog(@"方向 ============= %d", _allowRotate);
if (_allowRotate) {
return UIInterfaceOrientationMaskAll;
}else{
return (UIInterfaceOrientationMaskPortrait);
}
}
2.公共的BaseTabBarController 、BaseNavigationController中无需添加任何代码
3.公共的BaseViewController重写，然后所有的控制器继承于BaseViewController.。之所以写个公共BaseViewController,好处就是：当需要改变控制器的一些属性时，一改全改
- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskPortrait;
}
4.需要横屏的控制器中：主要是在出现之前将 delegate.allowRotate 打开适配所有方向。
//此处需要在 需要 横屏的控制器 显示push或者present之前将AppDelegate中的属性改变，也可以在push或者present之前添加
AppDelegate * delegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
delegate.allowRotate = YES;
为了解耦代码，我写在了init方法中
- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
AppDelegate * delegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
delegate.allowRotate = YES;
}
return self;
}
//在 push 走或者 dismiss走之前 还原设置，目的是为了push或者dismiss后能恢复竖屏，本来想写在ViewWillDisApeer中，发现有问题，故此改成了如下：
- (IBAction)s:(id)sender {
AppDelegate * delegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
delegate.allowRotate = NO;
[self dismissViewControllerAnimated:YES completion:nil];
}
- (IBAction)pap:(id)sender {
AppDelegate * delegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
delegate.allowRotate = NO;
[self presentViewController:[JCTest2ViewController new] animated:YES completion:nil];
}
- (BOOL)shouldAutorotate{
return NO;
}
//想要的方向
- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskLandscapeRight;
}
