1.在AppDelegate中添加如下代码: (1) self.window.rootViewController = self.iNavController; (2)// [self.window addSubview:self.iNavController.view]; 在iOS6.0 中只能使用(1)方法,如果使用(2)再去设置屏幕旋转会不起作用的。iOS6.0以下则不会出现上述问题。
2.屏幕旋转 (1)将屏幕旋转统一写到rootViewController中。例如:上面(1)中rootViewController是UINavigationController,则将旋转写到 UINavigationController中。为UINavigationController添加类别,代码如下: - (BOOL) shouldAutorotate { //全部调用self.topViewController,就是返回当前呈现出来的viewController里面的设置 return self.topViewController.shouldAutorotate; } - (NSUInteger)supportedInterfaceOrientations { return self.topViewController.supportedInterfaceOrientations; } (2)支持全部方向的旋转 iOS6.0需要下面三个方法,代码如下: - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation { return (toInterfaceOrientation != UIInterfaceOrientationMaskPortraitUpsideDown); } - (BOOL)shouldAutorotate { return YES; } - (NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskAllButUpsideDown; } (3)禁止屏幕旋转- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation { return (toInterfaceOrientation == UIInterfaceOrientationPortrait); } - (BOOL)shouldAutorotate { return NO; } - (NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskPortrait;//只支持这一个方向(正常的方向) } (4)如果viewCtrl 是 presentModalViewController 到 viewCtrl3,那么viewCtrl3的旋转设置就不在navCtrl里面了!如果presentModalViewController的viewController是navController、tabbarController包装过的viewCtrl3,那么就应在新包装的navController、tabbarController里面设置,如果是直接presentModalViewController到viewCtrl3,那么就在viewCtrl3里面设置3.屏幕旋转基本方法
//视图旋转之前自动调用
//视图旋转之前自动调用
-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation { |
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