iOS代码获取所有控件View结构树存到XML查看

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/** *  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];}- (void)applicationWillTerminate:(UIApplication *)application{    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.}- (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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