IOS实现自定义透明背景的tabbar

话不多说，直接看示例代码

```
//  uiimageview *imageview = [[uiimageview alloc]initwithframe:cgrectmake(0, 0, kscreenw, tabbarheight + 5)];
//  [imageview setimage:[self createimagewithcolor:[uicolor clearcolor]]];
//  [imageview setcontentmode:uiviewcontentmodescaletofill];
//  [self.tabbar insertsubview:imageview atindex:0];

  //覆盖原生tabbar的上横线
//  [[uitabbar appearance] setshadowimage:[self createimagewithcolor:[uicolor clearcolor]]];
//背景图片为透明色
//  [[uitabbar appearance] setbackgroundimage:[self createimagewithcolor:[uicolor clearcolor]]];
  self.tabbar.backgroundcolor = [uicolor clearcolor];
//设置为半透明
  self.tabbarcontroller.tabbar.translucent = yes;

```
```
-(uiimage*) createimagewithcolor:(uicolor*) color
{
  cgrect rect=cgrectmake(0.0f, 0.0f, 1.0f, 1.0f);
  uigraphicsbeginimagecontext(rect.size);
  cgcontextref context = uigraphicsgetcurrentcontext();
  cgcontextsetfillcolorwithcolor(context, [color cgcolor]);
  cgcontextfillrect(context, rect);
  uiimage *theimage = uigraphicsgetimagefromcurrentimagecontext();
  uigraphicsendimagecontext();
  return theimage;
}


```

以上就是在ios实现自定义透明背景的tabbar的全部内容，希望这篇文章对大家能有所帮助。