iOS7 新增的属性 backIndicatorImage 与 backIndicatorTransitionMaskImage - V2EX
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parkman
V2EX    iDev

iOS7 新增的属性 backIndicatorImage 与 backIndicatorTransitionMaskImage

  •  
  •   parkman 2014-02-21 16:10:13 +08:00 9796 次点击
    这是一个创建于 4253 天前的主题,其中的信息可能已经有所发展或是发生改变。
    大家试过自己customize过IOS7的navigation bar里面的返回按钮的 < 没?

    // 如果要自定义返回按钮,需设置以下两个 iOS7 新增的属性
    [[UINavigationBar appearance] setBackIndicatorImage:[UIImage imageNamed:@"nav_back.png"]];
    [[UINavigationBar appearance] setBackIndicatorTransitionMaskImage:[UIImage imageNamed:@"nav_another_back.png"]];

    设置的backIndicatorTransitionMaskImage 根本未生效。 其实还是用的backIndicatorImage
    2 条回复    1970-01-01 08:00:00 +08:00
    parkman
        1
    parkman  
    OP
       2014-02-21 16:19:13 +08:00
    追加一下,貌似,
    backIndicatorImage实际上是由你设置的 nav_back.png 与 navgationBar 的tintcolor 叠加起来的。
    backIndicatorTransitionMaskImage是由你设置的 nav_back.png 与 navgationBar的背景图片 叠加起来的。

    所谓叠加,就是像素向量的叠加
    ylem
        2
    ylem  
       2014-02-21 22:07:20 +08:00
    不是吧!!!

    开发文档上说的很明白了,backIndicatorTransitionMaskImage: The image used as a mask for content during push and pop transitions. 这个方法所设置的图片是transition时的图片。 通常你说的这两个方法设置的图片应该是一样的, 除非你想让backbutton在点击后的效果有所不同。
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