在写项目的时候，会遇到很多稀奇古怪的需求，我就碰到一个写一个网站，需要强制横屏，然后不需要上架，网上看了很多大神的需求，基本都能实现，但是不太好用，
自己参考搞了一个，代码如下：
AppDelegate.h
@property(nonatomic,assign)BOOL allowRotation;//是否允许转向
.m
#pragma mark 支持窗口翻转
- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(nullable UIWindow *)window { if (_allowRotation == YES) { return UIInterfaceOrientationMaskLandscapeRight; }else{ return (UIInterfaceOrientationMaskPortrait); } }
横屏展示的viewcontroler：
.m
- (void)setNewOrientation:(BOOL)fullscreen
{
if (fullscreen) {
NSNumber *resetOrientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationUnknown];
[[UIDevice currentDevice] setValue:resetOrientationTarget forKey:@"orientation"];
NSNumber *orientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationLandscapeLeft];
[[UIDevice currentDevice] setValue:orientationTarget forKey:@"orientation"];
}else{
NSNumber *resetOrientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationUnknown];
[[UIDevice currentDevice] setValue:resetOrientationTarget forKey:@"orientation"];
NSNumber *orientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationPortrait];
[[UIDevice currentDevice] setValue:orientationTarget forKey:@"orientation"];
}
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
AppDelegate * appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
appDelegate.allowRotation = YES;//(以上2行代码,可以理解为打开横屏开关)
[self setNewOrientation:YES];//调用转屏代码
[self creatWebView];
}
-(void)creatWebView
{
UIWebView *webV = [[UIWebView alloc]initWithFrame:self.view.frame];
[webV loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"https://www.badiu.com"]]];
[self.view addSubview:webV];
}
这样的话，进入的vc直接就是横屏展示了，我是在这定死了，只能向右横屏展示，这个可以自己设置的，根据重力展示，如图：
在上架箭头的地方设置即可！