githud路径:https://github.com/jdg/MBProgressHUD
MBProgressHUD提供了一个很好的demo,在github上可以下载。
但是在loading中,如何才能自定义转圈图片呢?
我们需要自定义一个动画,即将一个image旋转即可,如果还需要在旋转图中心另加其他图,则要做些小动作了
代码如下:
MBProgressHUD * hud = [MBProgressHUD showHUDAddedTo:[HUDUtil getRealView:view] animated:animated];
hud.mode = MBProgressHUDModeCustomView;
hud.offset = offset;
//loading图片和动画
UIImage *image = [[UIImage imageNamed:@"loading圈"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
UIImageView *imgView = [[UIImageView alloc] initWithImage:image];
CABasicAnimation *anima = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
anima.toValue = @(M_PI*2);
anima.duration = 1.0f;
anima.repeatCount = 100;
[imgView.layer addAnimation:anima forKey:nil];
UIImage *image_ye = [[UIImage imageNamed:@"loading叶"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
UIImageView *imgCenterView = [[UIImageView alloc] initWithImage:image_ye];
UIImageView *contentView = [[UIImageView alloc] initWithImage:image_ye];
[contentView addSubview:imgView];
[contentView addSubview:imgCenterView];
imgCenterView.center = contentView.center;
imgView.center = contentView.center;
hud.customView = contentView;
//背景颜色
hud.bezelView.color = [UIColor colorWithHexString:@"0x000000"];
hud.bezelView.alpha = 0.5f;
//背景宽高
CGFloat targetWidth;
CGFloat targetHeight;
CGFloat margin = 10.0f;
targetWidth = imgView.width + margin*2;
targetHeight = imgView.height + margin*2;
CGSize newSize = CGSizeMake(targetWidth, targetHeight);
hud.minSize = newSize;
//颜色
hud.contentColor = [UIColor whiteColor];
hud.animationType = MBProgressHUDAnimationFade;
其中MBProgressHUD有一个view叫做bezelView,这个View就是承载loading圈圈的背景view,背景的颜色/透明度就可以直接通过caozuo bezeView
的响应值来修改。
而loading中,承载图片的view叫做customView,他是vezelView的一个子控件。
如若不需要负责的图片loading,而只需要一张图片转圈,那么就将该转圈图片放入一个UIImageView,再赋值给customView就可以了(hud.bezelVIew = imageView(承载转圈图片的view))