当前位置：首页 > news >正文

建立网站一般经历的阶段/百度竞价推广是什么意思

news 2025/7/1 9:06:59

建立网站一般经历的阶段,百度竞价推广是什么意思,做外贸搜客户的网站,图库素材1、不要直接在UIWindow里面直接使用UIView，而是加载根试图控制器（UIViewController）然后使用控制器改变UIView，这也是Apple官方推荐的方式 [self beginAppearanceTransition:YES animated:NO];[parentViewController addChildView…

1、不要直接在UIWindow里面直接使用UIView，而是加载根试图控制器（UIViewController）然后使用控制器改变UIView，这也是Apple官方推荐的方式

 [self beginAppearanceTransition:YES animated:NO];[parentViewController addChildViewController:self];[parentViewController.view addSubview:self.view];[self didMoveToParentViewController:self];[self endAppearanceTransition];

2、

在横屏应用中，使用keyWindow添加一个视图，切换设备横屏方向，发现添加的视图不会随着变化方向。

并且只有Window的RootViewController可以监听到屏幕旋转变化。

[[UIApplicationsharedApplication].keyWindow addSubview:view];

解决方法如下：

定义RotateWindow继承UIWindow，并重写addSubview方法。AppDelegate中的window使用RotateWindow。

#define degreesToRadian(x) (M_PI * (x) / 180.0)- (void)addSubview:(UIView *)view {if ([self.subviews count] >= 1) {float angle = ([UIDevice currentDevice].orientation == UIDeviceOrientationLandscapeLeft)?90:-90;view.transform = CGAffineTransformMakeRotation(degreesToRadian(angle));view.frame = CGRectOffset(self.frame, 0, 0);}[super addSubview:view];
}

定义RotateViewController作为window的RootViewController，并重写以下方法

// 仅允许横屏
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {// Return YES for supported orientations.return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}// 设备旋转时修改添加视图方向
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {UIWindow *window = [UIApplication sharedApplication].keyWindow;int i = 0;for (UIView *view in window.subviews) {if (i != 0) {CGAffineTransform transform = view.transform;transform = CGAffineTransformRotate(transform,  degreesToRadian(180));view.transform = transform;}i++;}
}3、方法：
-(void)rotateView 
{ 
UIWindow *keywindow = [[UIApplication sharedApplication] keyWindow]; 
UIView *bgView = [[UIView alloc] initWithFrame:keywindow.bounds]; 
[keyWindow addSubview:bgView]; 
[bgView release]; [bgView addSubview:_overlayView]; 
[bgView addSubview:self]; 
self.center = CGPointMake(keywindow.bounds.size.width/2.0f, 
keywindow.bounds.size.height/2.0f); // Rotate the image by the specific angle. 
[bgView setTransform:CGAffineTransformMakeRotation(angle)]; [self fadeIn]; 
}