对于iphone 6和iPhone 6+，setSelectionIndicatorImage的大小不正确 [英] setSelectionIndicatorImage is of wrong size for iphone 6 and iPhone 6+

问题描述

我正在使用以下方法为所选标签栏项目设置选择指示器。它适用于iPhone 4 / 4s / 5 / 5s但不适用于iphone 6/6 +。

I am using following method to set selection indicator for selected tab bar item. It works well for iPhone 4/4s/5/5s but not in iphone 6/6+.

[[UITabBar appearance] setSelectionIndicatorImage:[UIImage imageNamed:@"activeshape.png"] ];

任何建议

推荐答案

编辑：似乎在所有这个解决方案应该工作之后，我遇到了一些缓存问题

IT seems that after all this solution should work, I had some issues with cache

UIImage *selTab = [[UIImage imageNamed:@"tabHighlight"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
CGSize tabSize = CGSizeMake(CGRectGetWidth(self.view.frame)/5, 49);
UIGraphicsBeginImageContext(tabSize);
[selTab drawInRect:CGRectMake(0, 0, tabSize.width, tabSize.height)];
UIImage *reSizeImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//
[self.tabBar setSelectionIndicatorImage:reSizeImage];

tabHiglight 是一个82x49的png，我已经测试过其他尺寸，但这似乎最合适。
我将框架的宽度除以tabBar中的项目数 - 在我的情况下为5，然后我创建了一个新的UIImage 大小并将其设置为 selectionIndicatorImage 。

tabHiglight is a png of 82x49, I've tested with other sizes but this seems to fit best. I divide the width of the frame by the number of items I have in the tabBar - in my case 5, then I create a new UIImage of the "right" size and set it as the selectionIndicatorImage.

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