[bug]:后台返回app字体变成”...“，小红点有文字时不会跳动。

[sonwa]

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Base Info for this issue

1. Version：Latest Version as here
2. Language of App ：Objective-C/Swift
3. iOS System Version：iOS12
4. Prototype（是否是真机）：YES
5. Issue Type：Crash、Bug、Enhancement（希望能支持一个新需求）、Q-A

1. How to reproduce the problem.

2. Please help me in this way.

3. Here is a Demo.

4. Here is my Debug log

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使用版本：依赖Lottie库，1.29.2 // set the text color for unselected state // 普通状态下的文字属性 NSMutableDictionary *normalAttrs = [NSMutableDictionary dictionary]; normalAttrs[NSForegroundColorAttributeName] = [UIColor cyl_systemGrayColor]; normalAttrs[NSFontAttributeName] = [UIFont fontWithName:@"Helvetica Neue" size:12.0f]; // set the text color for selected state // 选中状态下的文字属性 NSMutableDictionary *selectedAttrs = [NSMutableDictionary dictionary]; selectedAttrs[NSForegroundColorAttributeName] = [UIColor colorWithRed:0/255.0 green:101/255.0 blue:242/255.0 alpha:1.0]; selectedAttrs[NSFontAttributeName] = [UIFont fontWithName:@"Helvetica Neue" size:12.0f]; selectedAttrs[NSFontAttributeName]加入自定义字体大小后，app切换到后台或切换操作其它app后，重新回到app，字体变成”...“和小红点加了文字的CYLBadgeAnimationTypeBounce和CYLBadgeAnimationTypeShake方法不会动。 

[sonwa]

还有iOS12 [tabBar setTitlePositionAdjustment:UIOffsetMake(0, -4)]; 设置文字位置无效。

[1knight520]

从后台或者其他APP返回来后 tabbar上的文字我也会变"..."