iOS 设置导航条透明效果的实例代码

app中很多界面都是这样的、从有不透明到透明，透明到不透明

以下代码即可实现该功能

//设置导航栏透明 
 func setnavigationistranslucent(istranslucent:bool) { 
   if istranslucent == true { 
     self.navigationcontroller?.navigationbar.setbackgroundimage(uiimage(), for: .default) 
     self.navigationcontroller?.navigationbar.shadowimage = uiimage() 
     navigationcontroller?.navigationbar.barstyle = .black 
   }else { 
     navigationcontroller?.navigationbar.setbackgroundimage(uiimage(named: "nav_bg"), for: .default) 
     navigationcontroller?.navigationbar.shadowimage = uiimage() 
     navigationcontroller?.navigationbar.barstyle = .black 
   } 
 } 

总结

以上所述是小编给大家介绍的ios 设置导航条透明效果的实例代码，希望对大家有所帮助