- (WKWebView *)detailWeb {if (!_detailWeb) {NSString *jScript = @"var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width'); document.getElementsByTagName('head')[0].appendChild(meta); var imgs = document.getElementsByTagName('img');for (var i in imgs){imgs[i].style.maxWidth='100%';imgs[i].style.height='auto';}";WKUserScript *wkUScript = [[WKUserScript alloc] initWithSource:jScript injectionTime:WKUserScriptInjectionTimeAtDocumentEnd forMainFrameOnly:YES];WKUserContentController *wkUController = [[WKUserContentController alloc] init];[wkUController addUserScript:wkUScript];WKWebViewConfiguration *wkWebConfig = [[WKWebViewConfiguration alloc] init];wkWebConfig.userContentController = wkUController;_detailWeb = [[WKWebView alloc] initWithFrame:CGRectMake(0, AdaptedWidth(40), SCREEN_WIDTH, SCREEN_HEIGHT-TopNavHeight-AdaptedWidth(40)) configuration:wkWebConfig];_detailWeb.backgroundColor = [UIColor whiteColor];_detailWeb.navigationDelegate = self;}return _detailWeb;
}

#import "ViewController.h"#import "Masonry/Masonry.h"@interface ViewController ()@property (nonatomic, strong) UIScrollView *scrollView;@property (nonatomic, strong) UIView *scrollContentView;@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UILabel *subLabel;@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];self.view.backgroundColor = [UIColor whiteColor];self.title = @"1";// 1.把scrollView添加到控制器view
    [self.view addSubview:self.scrollView];[self.scrollView mas_makeConstraints:^(MASConstraintMaker *make) {make.edges.equalTo(self.view);}];// 2.给scrollView添加一个containerView// 重点 唯一 大小贴合scrollview// 即scrollView的子视图，即过渡视图contentSize，并设置其约束
    [self.scrollView addSubview:self.scrollContentView];[self.scrollContentView mas_makeConstraints:^(MASConstraintMaker *make) {// 注意点：首先确定contentView的位置。如果上下滑动等宽 左右滑动等高 类似于xib
        make.left.top.right.bottom.equalTo(self.scrollView);make.width.equalTo(self.scrollView);}];// 3.此后所有视图添加在scrollContentView上
    [self.scrollContentView addSubview:self.titleLabel];[self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {// 注意点这里面设置子视图都要添加在contentView上 必须注意make.left.equalTo(self.scrollContentView.mas_left).offset(20);make.right.equalTo(self.scrollContentView.mas_right).offset(-20);make.top.equalTo(self.scrollContentView.mas_top).offset(100);make.height.mas_equalTo(40);}];[self.scrollContentView addSubview:self.subLabel];[self.subLabel mas_makeConstraints:^(MASConstraintMaker *make) {make.left.equalTo(self.scrollContentView.mas_left).offset(20);make.right.equalTo(self.scrollContentView.mas_right).offset(-20);make.top.equalTo(self.titleLabel.mas_bottom).offset(40);// 这个可写在这个位置 也可以在网络请求结束后添加make.bottom.equalTo(self.scrollContentView.mas_bottom).offset(-100);}];// 模拟网络请求dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{self.subLabel.text = @"精雕机哦跌跤就叠加偶家迪欧家饿哦就掉得哦啊基金的年纪大递交炯炯都我阿尔加到的骄傲的   待机饿哦案件都安静哦啊接打带哦接啊哦啊接待偶尔接爱哦的旧爱带哦精雕机带偶觉得 基调而骄傲的奥迪偶记带哦精雕机哦跌跤就叠加偶家迪欧家饿哦就掉得哦啊基金的年纪大递交炯炯都我阿尔加到的骄傲的   待机饿哦案件都安静哦啊接打带哦接啊哦啊接待偶尔接爱哦的旧爱带哦精雕机带偶觉得 基调而骄傲的奥迪偶记带哦精雕机哦跌跤就叠加偶家迪欧家饿哦就掉得哦啊基金的年纪大递交炯炯都我阿尔加到的骄傲的   待机饿哦案件都安静哦啊接打带哦接啊哦啊接待偶尔接爱哦的旧爱带哦精雕机带偶觉得 基调而骄傲的奥迪偶记带哦精雕机哦跌跤就叠加偶家迪欧家饿哦就掉得哦啊基金的年纪大递交炯炯都我阿尔加到的骄傲的   待机饿哦案件都安静哦啊接打带哦接啊哦啊接待偶尔接爱哦的旧爱带哦精雕机带偶觉得 基调而骄傲的奥迪偶记带哦精雕机哦跌跤就叠加偶家迪欧家饿哦就掉得哦啊基金的年纪大递交炯炯都我阿尔加到的骄傲的   待机饿哦案件都安静哦啊接打带哦接啊哦啊接待偶尔接爱哦的旧爱带哦精雕机带偶觉得 基调而骄傲的奥迪偶记带哦精雕机哦跌跤就叠加偶家迪欧家饿哦就掉得哦啊基金的年纪大递交炯炯都我阿尔加到的骄傲的   待机饿哦案件都安静哦啊接打带哦接啊哦啊接待偶尔接爱哦的旧爱带哦精雕机带偶觉得 基调而骄傲的奥迪偶记带哦";// 在上面写了这个位置可以不写 最好不要都写  会造成代码混乱
//        // 设置过渡视图的底边距（此设置将影响到scrollView的contentSize）
//        [self.scrollContentView mas_makeConstraints:^(MASConstraintMaker *make) {
//            make.bottom.equalTo(self.subLabel.mas_bottom).offset(30);
//        }];
    });// Do any additional setup after loading the view, typically from a nib.
}#pragma mark - Lazy Setter
- (UIScrollView *)scrollView {if (!_scrollView) {_scrollView = [[UIScrollView alloc] init];_scrollView.backgroundColor = [UIColor greenColor];}return _scrollView;
}- (UIView *)scrollContentView {if (!_scrollContentView) {_scrollContentView = [[UIView alloc] init];_scrollContentView.backgroundColor = [UIColor redColor];}return _scrollContentView;
}- (UILabel *)titleLabel {if (!_titleLabel) {_titleLabel = [[UILabel alloc] init];_titleLabel.text = @"title";_titleLabel.textColor = [UIColor blackColor];_titleLabel.backgroundColor = [UIColor whiteColor];_titleLabel.font = [UIFont systemFontOfSize:16];_titleLabel.numberOfLines = 1;}return _titleLabel;
}- (UILabel *)subLabel {if (!_subLabel) {_subLabel = [[UILabel alloc] init];_subLabel.textColor = [UIColor blackColor];_subLabel.backgroundColor = [UIColor whiteColor];_subLabel.font = [UIFont systemFontOfSize:16];_subLabel.numberOfLines = 0;}return _subLabel;
}@end

 UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(30, 100, 100, 30)];label.text = @"fjirfjirjfi积分敌人的积极对得金蝶鸡的解决跌阿达啊打发 啊打发";label.adjustsFontSizeToFitWidth = YES;label.font = [UIFont systemFontOfSize:18];label.textColor = [UIColor blackColor];
//    label.minimumFontSize = 14;label.minimumScaleFactor = 0.5;[self.view addSubview:label];