BarbuttonItem 图片颜色蓝色

最新推荐文章于 2021-10-21 10:55:26 发布

原创最新推荐文章于 2021-10-21 10:55:26 发布 · 1.5k 阅读

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本文介绍了一种解决UIImage渲染模式问题的方法。通过正确设置UIImage的渲染模式为AlwaysOriginal，可以确保图片在iOS应用中正确显示。文章还提供了一个具体实例，展示了如何在UIBarButtonItem中设置UIImage。

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I spent an evening trying to figure this out as well. You were very close to the solution.The trick is to instantiate the UIImage with the rendering mode.

Instead of doing:

 UIImage *image = [UIImage imageNamed:@"myImage.png"];
 image = [image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

do this:

 UIImage *image = [[UIImage imageNamed:@"myImage.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

and it works!

In my case, I had dragged a Navigation bar to my viewcontroller in the IB, and added the BarButtonItem. But don't provide the item an image in the IB. Make an outlet and assign it the UIImage (like we created above) by doing this: