//
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// TZProgressView.m
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// TZImagePickerController
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//
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// Created by ttouch on 2016/12/6.
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// Copyright © 2016年 谭真. All rights reserved.
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//
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#import "TZProgressView.h"
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@interface TZProgressView ()
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@property (nonatomic, strong) CAShapeLayer *progressLayer;
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@end
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@implementation TZProgressView
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- (instancetype)init {
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self = [super init];
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if (self) {
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self.backgroundColor = [UIColor clearColor];
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_progressLayer = [CAShapeLayer layer];
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_progressLayer.fillColor = [[UIColor clearColor] CGColor];
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_progressLayer.strokeColor = [[UIColor whiteColor] CGColor];
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_progressLayer.opacity = 1;
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_progressLayer.lineCap = kCALineCapRound;
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_progressLayer.lineWidth = 5;
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[_progressLayer setShadowColor:[UIColor blackColor].CGColor];
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[_progressLayer setShadowOffset:CGSizeMake(1, 1)];
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[_progressLayer setShadowOpacity:0.5];
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[_progressLayer setShadowRadius:2];
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}
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return self;
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}
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- (void)drawRect:(CGRect)rect {
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CGPoint center = CGPointMake(rect.size.width / 2, rect.size.height / 2);
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CGFloat radius = rect.size.width / 2;
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CGFloat startA = - M_PI_2;
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CGFloat endA = - M_PI_2 + M_PI * 2 * _progress;
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_progressLayer.frame = self.bounds;
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UIBezierPath *path = [UIBezierPath bezierPathWithArcCenter:center radius:radius startAngle:startA endAngle:endA clockwise:YES];
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_progressLayer.path =[path CGPath];
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[_progressLayer removeFromSuperlayer];
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[self.layer addSublayer:_progressLayer];
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}
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- (void)setProgress:(double)progress {
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_progress = progress;
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[self setNeedsDisplay];
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}
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@end
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