先上效果图，很简单不喜勿喷，有错的地方，还请指正

ZRProgress1.gif

半透明的圆按百分比消失

ZRUploadProgressView.h文件

#import <UIKit/UIKit.h>

typedef void(^ZRCompletionBlock)(void);

@interface ZRUploadProgressView : UIView

@property (nonatomic, strong) UIColor *progressColor;
// 0~1 小数
@property (nonatomic, assign) CGFloat progress;

@property (nonatomic, strong) NSString *imageName;

@property (nonatomic, copy) ZRCompletionBlock completionBlock;

@end

ZRUploadProgressView.m文件

#import "ZRUploadProgressView.h"

@interface ZRUploadProgressView ()

@property (nonatomic, strong) CAShapeLayer *trackLayer;
@property (nonatomic, strong) CAShapeLayer *imageLayer;
@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UIBezierPath *progressPath;

@end

@implementation ZRUploadProgressView

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        [self drawArcProgressView];
    }
    return self;
}

- (instancetype)initWithCoder:(NSCoder *)coder {
    self = [super initWithCoder:coder];
    if (self) {
        [self drawArcProgressView];
    }
    return self;
}

- (void)drawArcProgressView {
    CGFloat width = self.frame.size.width;
    CGFloat height = self.frame.size.height;
    self.layer.masksToBounds = YES;
    self.layer.cornerRadius = width/2.0;
    
    self.imageLayer = [CAShapeLayer layer];
    self.imageLayer.frame = self.bounds;
    [self.layer addSublayer:self.imageLayer];
    
    CGPoint center = CGPointMake(width/2, height/2);
    UIBezierPath *progressPath = [UIBezierPath bezierPathWithArcCenter:center radius:(width)/ 2 startAngle:- M_PI_2 endAngle: -M_PI*5/2 clockwise:NO];
    self.trackLayer = [CAShapeLayer layer];
    self.trackLayer.frame = CGRectMake(0, 0, width, height);
    self.trackLayer.fillColor = [UIColor clearColor].CGColor;
    self.trackLayer.strokeColor = [UIColor orangeColor].CGColor;
    self.trackLayer.lineWidth = width;
    self.trackLayer.path = progressPath.CGPath;
    self.trackLayer.strokeEnd = 1;
    [self.layer addSublayer:self.trackLayer];
    
    self.titleLabel = [[UILabel alloc] initWithFrame:self.bounds];
    self.titleLabel.center = center;
    self.titleLabel.hidden = YES;
    self.titleLabel.textColor = [UIColor yellowColor];
    self.titleLabel.font = [UIFont systemFontOfSize:16];
    self.titleLabel.textAlignment = NSTextAlignmentCenter;
    [self addSubview:self.titleLabel];
}

- (void)setProgressColor:(UIColor *)progressColor {
    self.trackLayer.strokeColor = progressColor.CGColor;
}

- (void)setTitleColor:(UIColor *)titleColor {
    self.titleLabel.textColor =  titleColor;
}

- (void)setImageName:(NSString *)imageName {
    [self.imageLayer setContents:(id)[UIImage imageNamed:imageName].CGImage];
}

- (void)setProgress:(CGFloat)progress {
    _progress = MIN(1, MAX(0, progress));
   _progress = 1.0 - progress;
    self.trackLayer.strokeEnd = _progress;
    NSString *progressStr = [NSString stringWithFormat:@"%.1f%%",100.0-_progress * 100];
    self.titleLabel.text = progressStr;
    if (_progress <= 0) {
        if (self.completionBlock) {
            self.completionBlock();
            self.completionBlock = nil;
        }
    } else {
        self.titleLabel.hidden = NO;
    }
}

圆环按百分比加载

ZRCircleProgressView.h

#import <UIKit/UIKit.h>

typedef void(^ZRCompletionBlock)(void);

@interface ZRCircleProgressView : UIView

@property (nonatomic, strong) UIColor *progressColor;
@property (nonatomic, strong) UIColor *titleColor;
@property (nonatomic, assign) CGFloat progressWidth;
@property (nonatomic, assign) CGFloat progress;
@property (nonatomic, copy) ZRCompletionBlock completionBlock;

@end

ZRCircleProgressView.m

#import "ZRCircleProgressView.h"

@interface ZRCircleProgressView()

@property (nonatomic, strong) CAShapeLayer *circleLayer;
@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UIBezierPath *path;

@end

@implementation ZRCircleProgressView

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        [self setupSubviews];
    }
    return self;
}

- (instancetype)initWithCoder:(NSCoder *)coder {
    self = [super initWithCoder:coder];
    if (self) {
        [self setupSubviews];
    }
    return self;
}

- (void)setupSubviews {
    CGFloat width = self.frame.size.width;
    CGFloat height = self.frame.size.height;
    self.layer.masksToBounds = YES;
    self.layer.cornerRadius = width/2.0;
    self.circleLayer = [CAShapeLayer layer];
    self.circleLayer.frame = self.bounds;
    self.circleLayer.strokeEnd = 0;
    self.circleLayer.lineWidth = 3;
    self.circleLayer.strokeColor = [UIColor orangeColor].CGColor;
    self.circleLayer.fillColor = [UIColor clearColor].CGColor;
    CGPoint center = CGPointMake(width/2, height/2);
    [self.layer addSublayer:self.circleLayer];
    
    self.titleLabel = [[UILabel alloc] initWithFrame:self.bounds];
    self.titleLabel.center = center;
    self.titleLabel.hidden = YES;
    self.titleLabel.textColor = [UIColor yellowColor];
    self.titleLabel.font = [UIFont systemFontOfSize:16];
    self.titleLabel.textAlignment = NSTextAlignmentCenter;
    [self addSubview:self.titleLabel];
}

- (void)setTitleColor:(UIColor *)titleColor {
    self.titleLabel.textColor =  titleColor;
}

- (void)setProgressColor:(UIColor *)progressColor {
    self.circleLayer.strokeColor = progressColor.CGColor;
}

- (void)setProgress:(CGFloat)progress {
    _progress = MIN(1, MAX(0, progress));
    self.circleLayer.strokeEnd = _progress;
    NSString *progressStr = [NSString stringWithFormat:@"%.1f%%",_progress * 100];
    self.titleLabel.text = progressStr;
    if (_progress >= 1) {
        if (self.completionBlock) {
            self.completionBlock();
            self.completionBlock = nil;
        }
    } else {
        self.titleLabel.hidden = NO;
    }
}

- (void)setProgressWidth:(CGFloat)progressWidth {
    if (!_path) {
        CGFloat width = self.frame.size.width;
        CGPoint center = CGPointMake(width/2, width/2);
        _path = [UIBezierPath bezierPathWithArcCenter:center radius:(width/2 - progressWidth/2) startAngle:-M_PI_2 endAngle:3*M_PI/2 clockwise:YES];
        self.circleLayer.path = _path.CGPath;
    }
    self.circleLayer.lineWidth = progressWidth;
}

使用

#import "ViewController.h"
#import "ZRUploadProgressView.h"
#import "ZRCircleProgressView.h"

@interface ViewController ()

@property (nonatomic, strong) NSTimer *timer;
@property (nonatomic, assign) CGFloat progress;
@property (nonatomic, strong) ZRUploadProgressView *uploadView;
@property (nonatomic, strong) ZRCircleProgressView *circleView;
@property (nonatomic, strong) ZRCircleProgressView *circleView1;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.progress = 0.0f;
    
    CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;
    CGFloat width = (screenWidth-80)/3;
    CGFloat orgY = [UIScreen mainScreen].bounds.size.height/2 - width/2;
    
    self.uploadView = [[ZRUploadProgressView alloc] initWithFrame:CGRectMake(20, orgY, width, width)];
    self.uploadView.progressColor = [[UIColor blackColor] colorWithAlphaComponent:0.4];
    self.uploadView.imageName = @"1.jpeg";
    self.uploadView.backgroundColor = [UIColor clearColor];
    self.uploadView.completionBlock = ^{
        NSLog(@"uploadView - completion");
    };
    [self.view addSubview:self.uploadView];
    
    self.circleView = [[ZRCircleProgressView alloc] initWithFrame:CGRectMake(CGRectGetMaxX(self.uploadView.frame) + 20, orgY, width, width)];
    self.circleView.backgroundColor = [UIColor cyanColor];
    self.circleView.progressWidth = width/2;
    self.circleView.completionBlock = ^{
        NSLog(@"circleView - completion");
    };
    [self.view addSubview:self.circleView];
    
    self.circleView1 = [[ZRCircleProgressView alloc] initWithFrame:CGRectMake(CGRectGetMaxX(self.circleView.frame) + 20, orgY, width, width)];
    self.circleView1.backgroundColor = [UIColor blueColor];
    self.circleView1.progressWidth = 10;
    self.circleView1.completionBlock = ^{
        NSLog(@"circleView1 - completion");
    };
    [self.view addSubview:self.circleView1];
    
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)makeTimer {
    if (!_timer) {
        _timer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(startTimer) userInfo:nil repeats:YES];
        [[NSRunLoop currentRunLoop] addTimer:self.timer forMode:NSRunLoopCommonModes];
    }
}

- (void)startTimer {
    
    CGFloat progressRandom =  (arc4random()%100)/10000.0;
    self.progress += progressRandom;
    if (self.progress >= 1) {
        [self.timer invalidate];
        self.timer = nil;
    }
    self.uploadView.progress = self.progress;
    self.circleView.progress = self.progress;
    self.circleView1.progress = self.progress;
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
    // 模拟下载动作
    [self makeTimer];
}

github传送门ZRProgress记得留下你的Star，Star是我更新的动力