webView 加載 HTML 形式的內容,自適應高不帶和html字符串裏面不帶請求頭

1. webview 控件封裝

@implementation MineWebBkg

-(id)initWithFrame:(CGRect)frame{
    
    self = [super initWithFrame:frame];
    if (self) {
        [self drawView];
    }
    return self;
}

-(void)drawView{
    
    self.bkgView = [[UIView alloc]init];
    self.bkgView.userInteractionEnabled = YES;
    self.bkgView.backgroundColor = [UIColor whiteColor];
    [self addSubview:self.bkgView];
    [self.bkgView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.mas_equalTo(self.mas_top);
        make.height.mas_equalTo(1);
        make.left.mas_equalTo(self.mas_left);
        make.right.mas_equalTo(self.mas_right);
    }];
    
    
    //圖文詳情
    if (!_webView) {
        self.webView = [UIWebView new];
        [self.bkgView addSubview:self.webView];
    }
    self.webView.scalesPageToFit = YES;
    self.webView.delegate = self;
    self.webView.dataDetectorTypes = UIDataDetectorTypeNone;//添加目的去掉可以點擊鏈接(但是網絡連接沒有實現www.xxxx.html)
    [self.webView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.mas_equalTo(self.bkgView);
        make.top.mas_equalTo(self.bkgView.mas_top);
        make.height.mas_equalTo(1);
    }];
    
}

//請求成功後自適應高度
- (void)webViewDidFinishLoad:(UIWebView *)webView{
    /*
     self.navigationItem.title = [webView stringByEvaluatingJavaScriptFromString:@"document.title"];
     
     _webView.scalesPageToFit = YES;
     */
    
//    CGFloat width_scr = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollWidth"] floatValue];
//    if(width_scr==0){
//        width_scr = SCREEN_WIDTH-12*2;
//    }
//    CGFloat scale = width_scr/(SCREEN_WIDTH-12*2);
//
//    CGFloat height = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight"] floatValue]/scale;
    
    CGSize size = [webView sizeThatFits:CGSizeZero];
    
    [self.webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitTouchCallout='none';"];
    
    webView.scrollView.scrollEnabled = NO;
    webView.scrollView.showsVerticalScrollIndicator = NO;
    webView.scrollView.showsHorizontalScrollIndicator = NO;
    
    [self.webView mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.top.mas_equalTo(self.bkgView.mas_top);
        make.left.right.mas_equalTo(self.bkgView);
        make.height.mas_equalTo(size.height);
    }];
    [self.bkgView mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.top.mas_equalTo(self.mas_top);
        make.height.mas_equalTo(size.height);
        make.left.mas_equalTo(self.mas_left);
        make.right.mas_equalTo(self.mas_right);
    }];
    
}

2.加載:

 //加載HTML字符串內容完成圖文混編
 [self.infoBkg.webView loadHTMLString:HTML內容 baseURL:[NSURL URLWithString:HTML裏面省略的頭]];