iOS 全局禁止横屏,但UIWebView 全屏播放视频,横屏,解决办法
UIWebview在播放网页视频的时候我们需要进行是否全屏状态的监听。
一般的需求是在播放视频时候需要横屏,退出全屏的时候不能横屏,但是UIWebview没有给出响应的方法,
1:其他界面不支持横屏:
这个比较容易我的思路是在APPDelegate.h文件中增加属性:是否支持横屏
/*** 是否允许横屏的标记 */@property (nonatomic,assign)BOOL allowRotation;
在APPDelegate.m文件中增加方法,控制全部不支持横屏
-(NSUInteger)application:(UIApplication*)application supportedInterfaceOrientationsForWindow:(UIWindow*)window {if (self.allowRotation) {return UIInterfaceOrientationMaskAll;
}
return UIInterfaceOrientationMaskPortrait;
}
这样在其他界面想要横屏的时候,我们只要控制allowRotation这个属性就可以控制其他界面进行横屏了。
//需在上面
#import "AppDelegate.h"AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
appDelegate.allowRotation = YES;//不让横屏的时候
appDelegate.allowRotation = NO;即可
2:播放界面横屏:
2.3:播放界面横屏:问题解决
所以这里可以使用UIWindow的通知,就可以解决
[[NSNotificationCenter defaultCenter]addObserver:selfselector:@selector(begainFullScreen)name:UIWindowDidBecomeVisibleNotificationobject:nil];//进入全屏[[NSNotificationCenter defaultCenter]addObserver:selfselector:@selector(endFullScreen)name:UIWindowDidBecomeHiddenNotificationobject:nil];//退出全屏
在退出全屏时,增加逻辑让其强制编程竖屏,这样当全屏播放的时候,点击down("完成")时,就会自动变成竖屏了。
// 进入全屏
-(void)begainFullScreen{
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
appDelegate.allowRotation = YES;
}
// 退出全屏
-(void)endFullScreen{AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
appDelegate.allowRotation = NO;//强制归正:
if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {SEL selector = NSSelectorFromString(@"setOrientation:");
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[UIDevice instanceMethodSignatureForSelector:selector]];
[invocation setSelector:selector];
[invocation setTarget:[UIDevice currentDevice]];
int val =UIInterfaceOrientationPortrait;
[invocation setArgument:&val atIndex:2];
[invocation invoke];
}
self.navigationController.navigationBar.center = CGPointMake(screen_Width/2, 44);
}