ios横竖屏配置subViews

ayoutSubviews的调用时机：

1.init时不会被调用、

2.将要真正显示的会调用

3.frame发现改变时智能调用

4.滚动、旋转、remove等等时

这些时机都是和frame相关的，也是唯一能更新子视图的最好时机

layoutSubviews的调用时机：http://blog.csdn.net/zhangao0086/article/details/6904854

drawRect是在视图被真正显示的时候，如果layer的contents没有内容，就会被调用

横竖屏demo：

A:----views

@interface DetialViews ()<UIWebViewDelegate>{

UIView *bgView;

UIWebView *webView;

}

@end

@implementation DetialViews

- (instancetype)initWithFrame:(CGRect)frame{

self = [super initWithFrame:frame];

if (self) {

}

return self;

}

- (void)willMoveToSuperview:(UIView *)newSuperview{

if (newSuperview !=nil) {

if ([self respondsToSelector:@selector(setupViews)]) {

[self setupViews];

}

if ([self respondsToSelector:@selector(addSubviews)]) {

[self addSubviews];

}

}

}

- (void)layoutSubviews{

[super layoutSubviews];

switch ([[UIApplication sharedApplication] statusBarOrientation]) {

case UIInterfaceOrientationLandscapeLeft:

case UIInterfaceOrientationPortrait:{

if ( [self respondsToSelector:@selector(layoutPortrait)]) {

[self layoutPortrait];

}

}

break;

case UIInterfaceOrientationLandscapeRight:

{

if ([self respondsToSelector:@selector(layoutLandscape)]) {

[self layoutLandscape];

}

}

break;

case UIInterfaceOrientationPortraitUpsideDown:

default:

break;

}

}

- (void)setupViews{

bgView = [[UIView alloc] init];

bgView.backgroundColor = [UIColor blueColor];

webView = [[UIWebView alloc] init];

webView.backgroundColor = [UIColor whiteColor];

NSURL *url =[NSURL URLWithString:@"https://www.baidu.com"];

NSURLRequest *request =[NSURLRequest requestWithURL:url];

[webView loadRequest:request];

}

- (void)addSubviews{

[self addSubview:bgView];

[self addSubview:webView];

}

- (void)layoutLandscape{

[bgView setFrame:CGRectMake(0, 0, TjScreeenWeight, 60)];

[webView setFrame:CGRectMake(0, bgView.frame.size.height+bgView.frame.origin.y, self.frame.size.width, TjScreenHeight - bgView.frame.size.height )];

NSLog(@"home右边----->%f---%f",bgView.bounds.size.width,bgView.bounds.size.height);

}

- (void)layoutPortrait{

[bgView setFrame:CGRectMake(0, 0, TjScreeenWeight, 60)];

[webView setFrame:CGRectMake(0, bgView.frame.size.height+bgView.frame.origin.y, self.frame.size.width, TjScreenHeight - bgView.frame.size.height )];

NSLog(@"home下边----->%f---%f",bgView.bounds.size.width,bgView.bounds.size.height);

}

B: viewController

#import "DetialVViewController.h"

#import "DetialViews.h"

@interface DetialVViewController (){

DetialViews * _detialView;

}

@end

@implementation DetialVViewController

- (void)viewDidLoad {

[super viewDidLoad];

[self addSubViews];

}

- (void)addSubViews{

_detialView = [[DetialViews alloc] initWithFrame:self.view.bounds];

[self.view addSubview:_detialView];

}