iOS 全局禁止橫屏,但UIWebView 全屏播放視頻,橫屏,解決辦法
UIWebview在播放網(wǎng)頁視頻的時候我們需要進行是否全屏狀態(tài)的監(jiān)聽。
一般的需求是在播放視頻時候需要橫屏,退出全屏的時候不能橫屏,但是UIWebview沒有給出響應(yīng)的方法,
1:其他界面不支持橫屏:
這個比較容易我的思路是在APPDelegate.h文件中增加屬性:是否支持橫屏
/***? 是否允許橫屏的標(biāo)記 */@property (nonatomic,assign)BOOL allowRotation;
在APPDelegate.m文件中增加方法,控制全部不支持橫屏
-(NSUInteger)application:(UIApplication*)application supportedInterfaceOrientationsForWindow:(UIWindow*)window {if (self.allowRotation) {return UIInterfaceOrientationMaskAll;??
??? }
???? return UIInterfaceOrientationMaskPortrait;
}
這樣在其他界面想要橫屏的時候,我們只要控制allowRotation這個屬性就可以控制其他界面進行橫屏了。
//需在上面
#import "AppDelegate.h"AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
appDelegate.allowRotation = YES;//不讓橫屏的時候
appDelegate.allowRotation = NO;即可
2:播放界面橫屏:
2.3:播放界面橫屏:問題解決
所以這里可以使用UIWindow的通知,就可以解決
[[NSNotificationCenter defaultCenter]addObserver:selfselector:@selector(begainFullScreen)name:UIWindowDidBecomeVisibleNotificationobject:nil];//進入全屏[[NSNotificationCenter defaultCenter]addObserver:selfselector:@selector(endFullScreen)name:UIWindowDidBecomeHiddenNotificationobject:nil];//退出全屏
在退出全屏?xí)r,增加邏輯讓其強制編程豎屏,這樣當(dāng)全屏播放的時候,點擊down("完成")時,就會自動變成豎屏了。
// 進入全屏
-(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;//強制歸正:
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);
}