//给所有子视图加框
image
在 UIView 分类添加方法
/**
给所有自视图加框
*/
- (void)getViewLayer{
NSArray *subviews = self.subviews;
if (subviews.count == 0) return;
for (UIView *subview in subviews) {
subview.layer.borderWidth = kW_LayerBorder;
#if DEBUG
subview.layer.borderColor = UIColor.redColor.CGColor;
#else
subview.layer.borderColor = UIColor.clearColor.CGColor;
#endif
[subview getViewLayer];
}
}
//使用方法:
[self.view getViewLayer];
另分享一个别人的打印所有子视图的方法(出处忘了,对不起😞)
//控制台打印所有子视图(需要注意的是，我的level设置是从1开始的，这与方法中加空格时变量i起始的值是相呼应的，要改就要都改。)
+ (void)getSub:(UIView*)view andLevel:(NSInteger)level {
NSArray*subviews = view.subviews;
if(subviews.count ==0) return;
for(UIView *subview in subviews) {
NSString *blank = @"";
for(NSInteger i = 1; i < level; i++) {
blank = [NSStringstringWithFormat:@"%@", blank];
}
NSLog(@"%@%ld: %@_%@", blank, (long)level,subview.class, NSStringFromCGRect(subview.frame));
[self getSub:subviewandLevel:(level+1)];
}
}
//使用:
[UIView getSub:alertController.view andLevel:1];
