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  • 遍历输出所有子视图(View)

    传入一个View,可以获取传入视图的所有子视图,写入桌面,可以在火狐浏览器下查看

    /**
     *  程序获得了焦点就会自动调用这个方法(只要程序获得了焦点,所有控件才能接收触摸事件)
     */
    - (void)applicationDidBecomeActive:(UIApplication *)application
    {
        NSString *xml = [self digView:self.window];
        [xml writeToFile:@"/Users/aplle/Documents/window.xml" atomically:YES];
    }
    
    
    - (NSString *)digView:(UIView *)view
    {
        if ([view isKindOfClass:[UITableViewCell class]]) return @"";
        // 1.初始化
        NSMutableString *xml = [NSMutableString string];
        
        // 2.标签开头
        [xml appendFormat:@"<%@ frame="%@"", view.class, NSStringFromCGRect(view.frame)];
        if (!CGPointEqualToPoint(view.bounds.origin, CGPointZero)) {
            [xml appendFormat:@" bounds="%@"", NSStringFromCGRect(view.bounds)];
        }
        
        if ([view isKindOfClass:[UIScrollView class]]) {
            UIScrollView *scroll = (UIScrollView *)view;
            if (!UIEdgeInsetsEqualToEdgeInsets(UIEdgeInsetsZero, scroll.contentInset)) {
                [xml appendFormat:@" contentInset="%@"", NSStringFromUIEdgeInsets(scroll.contentInset)];
            }
        }
        
        // 3.判断是否要结束
        if (view.subviews.count == 0) {
            [xml appendString:@" />"];
            return xml;
        } else {
            [xml appendString:@">"];
        }
        
        // 4.遍历所有的子控件
        for (UIView *child in view.subviews) {
            NSString *childXml = [self digView:child];
            [xml appendString:childXml];
        }
        
        // 5.标签结尾
        [xml appendFormat:@"</%@>", view.class];
        
        return xml;
    }
    
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  • 原文地址:https://www.cnblogs.com/GJ-ios/p/5774510.html
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