标签 ios objective-c
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我正在尝试显示原始标签栏图像。以下代码在 iOS7 中运行良好，但在 iOS 6.0 中会出现上述崩溃。以下是 AppDelegates didFinishLaunchingWithOptions
UITabBar *tb = tabBarControllerProperty.tabBar;
NSArray *itemsObject = tb.items;
for(UITabBarItem *tabItem in itemsObject)
{
UIImage *imaged = tabItem.image;
tabItem.selectedImage = imaged;
tabItem.image = [imaged imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];// crash for ios6, not in ios 7
}
最佳答案
来自文档:
-[UIImage imageWithRenderingMode:]
Availability: available in iOS 7.0 and later.
您必须检查该方法在运行时是否可用:
if ([imaged respondsToSelector:@selector(imageWithRenderingMode:)]) {
tabItem.image = [imaged imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];// crash for ios6, not in ios 7
} else {
// iOS 6 fallback: insert code to convert imaged if needed
tabItem.image = imaged;
}
关于ios - [UIImage imageWithRenderingMode :]: unrecognized selector sent to instance，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20903985/