iOS第三方（显示视图的宽度高度）－ MMPlaceHolder

github:https://github.com/adad184/MMPlaceHolder#readme

 appDelegate添加，影响全局

    [MMPlaceHolderConfig defaultConfig].lineColor = [UIColor redColor]; 
   
    [MMPlaceHolderConfig defaultConfig].lineWidth =  
   1; 
   
    [MMPlaceHolderConfig defaultConfig].arrowSize =  
   5; 
   
    [MMPlaceHolderConfig defaultConfig].backColor = [UIColor clearColor]; 
   
    [MMPlaceHolderConfig defaultConfig].frameWidth =  
   0; 
   
    [MMPlaceHolderConfig defaultConfig].visibleKindOfClasses = @[UIImageView. 
   class]; 
   
     
   
     
   // 
   using it for frame debug    [MMPlaceHolderConfig defaultConfig].autoDisplay = YES; 
   
    [MMPlaceHolderConfig defaultConfig].autoDisplaySystemView = YES; 
   
    [MMPlaceHolderConfig defaultConfig].showArrow = YES; 
   
    [MMPlaceHolderConfig defaultConfig].showText = YES; 
   
     
   
     
   // 
   using it to control global visible    [MMPlaceHolderConfig defaultConfig].visible = YES; 
  

 使用的时候添加，影响单个

    [iv2 showPlaceHolder]; 
   
    [iv3 showPlaceHolderWithLineColor:[UIColor greenColor]]; 
   
    [iv4 showPlaceHolderWithLineColor:[UIColor yellowColor] backColor:[UIColor colorWithRed: 
   0.1 green: 
   0.1 blue: 
   0.1 alpha: 
   0.5]]; 
   
    [iv5 showPlaceHolderWithLineColor:[UIColor whiteColor] backColor:[UIColor colorWithRed: 
   1.0 green: 
   0.5 blue: 
   0 alpha: 
   0.8] arrowSize: 
   12]; 
   
    [iv6 showPlaceHolderWithLineColor:[UIColor whiteColor] backColor:[UIColor blackColor] arrowSize: 
   25 lineWidth: 
   3] 
  

 效果图：