具有自定义UIActivity的UIActivityViewController将彩色图像显示为灰色 [英] UIActivityViewController with custom UIActivity displays color image as gray

问题描述

我创建了一个自定义UIActivity以在共享表中显示。我创建了一个全彩色的60x60图标（png文件），但是当它显示时它只显示灰色的轮廓。我不明白我写错了什么。我希望有人看到我错过的东西。任何帮助将不胜感激。这是我的代码...

I created a custom UIActivity to display in a share sheet. I created an 60x60 icon (png file) in full color, but when it's displayed it only shows the outline in gray. I don't see what I've written incorrectly. I hope someone sees what I've missed. Any help will be greatly appreciated. Here is my code...

@implementation MyActivity

#pragma mark - Overrides
- (NSString *)activityType {
    return @"MyType";
}

- (NSString *)activityTitle {
    return @"ShareMe";
}

- (UIImage *)activityImage {
    return [UIImage imageNamed:@"MyIcon_60x60.png"];
}

- (BOOL)canPerformWithActivityItems:(NSArray *)activityItems {
    return YES;
}

- (void)prepareWithActivityItems:(NSArray *)activityItems {
    // Do Something
}

+ (UIActivityCategory)activityCategory {
    return UIActivityCategoryShare;
}

@end

推荐答案

尝试在子类UIActivity类中的方法中添加下划线

Try adding an underscore to the method in the subclassed UIActivity class

- (UIImage *)_activityImage {}

虽然

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