ios - 带有 gif 图像的 MBProgressHud

Question

我可以使用 gif 图像代替默认加载指示器吗？到目前为止，我正在使用这段代码，但没有得到任何结果。任何人都可以建议这段代码有什么问题吗？

#import "UIImage+GIF.h"
-(void) showLoadingHUD:(NSString *)title
{
    [self hideLoadingHUD];
    if(!HUD){
        HUD = [MBProgressHUD showHUDAddedTo:self.window animated:YES];
    }
    [HUD setColor:[UIColor clearColor]];

    UIImageView *imageViewAnimatedGif = [[UIImageView alloc]init];
    imageViewAnimatedGif.image= [UIImage sd_animatedGIFNamed:@"martini_glass"];

    HUD.customView = [[UIImageView alloc] initWithImage:imageViewAnimatedGif.image];
    CABasicAnimation *rotation;
    rotation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
    rotation.fromValue = [NSNumber numberWithFloat:0];
    rotation.toValue = [NSNumber numberWithFloat:(2 * M_PI)];
    rotation.duration = 0.7f; // Speed
    rotation.repeatCount = HUGE_VALF; // Repeat forever. Can be a finite number.
    [HUD.customView.layer addAnimation:rotation forKey:@"Spin"];
    HUD.mode = MBProgressHUDModeCustomView;
    [HUD show:YES];
}

Answer 1

使用MBProgressHUD的最新库和 SDWebImage对于 "UIImage+GIF.h" 并且工作正常

-(void) showLoadingHUD:(NSString *)title {

    [HUD hideAnimated:true];
    HUD = [MBProgressHUD showHUDAddedTo:self.view animated:YES];

    HUD.label.text = title;
    HUD.bezelView.color = [UIColor clearColor];
    UIImageView *imageViewAnimatedGif = [[UIImageView alloc]init];

    //The key here is to save the GIF file or URL download directly into a NSData instead of making it a UIImage. Bypassing UIImage will let the GIF file keep the animation.
    NSString *filePath = [[NSBundle mainBundle] pathForResource: @"loader" ofType: @"gif"];
    NSData *gifData = [NSData dataWithContentsOfFile: filePath];
    imageViewAnimatedGif.image = [UIImage sd_animatedGIFWithData:gifData];

    HUD.customView = [[UIImageView alloc] initWithImage:imageViewAnimatedGif.image];
    CABasicAnimation *rotation;
    rotation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
    rotation.fromValue = [NSNumber numberWithFloat:0];
    rotation.toValue = [NSNumber numberWithFloat:(2 * M_PI)];
    rotation.duration = 0.7f; // Speed
    rotation.repeatCount = HUGE_VALF; // Repeat forever. Can be a finite number.
    rotation.removedOnCompletion = false;
    [HUD.customView.layer addAnimation:rotation forKey:@"Spin"];
    HUD.mode = MBProgressHUDModeCustomView;
    HUD.contentColor = [UIColor redColor];
    [HUD showAnimated:YES];
}

示例加载器 .gif 图像: