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97 lines
3.0 KiB
97 lines
3.0 KiB
1 year ago
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//
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// SVProgressAnimatedView.m
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// SVProgressHUD, https://github.com/SVProgressHUD/SVProgressHUD
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//
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// Copyright (c) 2017-2019 Tobias Tiemerding. All rights reserved.
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//
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#import "SVProgressAnimatedView.h"
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@interface SVProgressAnimatedView ()
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@property (nonatomic, strong) CAShapeLayer *ringAnimatedLayer;
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@end
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@implementation SVProgressAnimatedView
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- (void)willMoveToSuperview:(UIView*)newSuperview {
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if (newSuperview) {
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[self layoutAnimatedLayer];
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} else {
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[_ringAnimatedLayer removeFromSuperlayer];
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_ringAnimatedLayer = nil;
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}
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}
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- (void)layoutAnimatedLayer {
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CALayer *layer = self.ringAnimatedLayer;
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[self.layer addSublayer:layer];
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CGFloat widthDiff = CGRectGetWidth(self.bounds) - CGRectGetWidth(layer.bounds);
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CGFloat heightDiff = CGRectGetHeight(self.bounds) - CGRectGetHeight(layer.bounds);
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layer.position = CGPointMake(CGRectGetWidth(self.bounds) - CGRectGetWidth(layer.bounds) / 2 - widthDiff / 2, CGRectGetHeight(self.bounds) - CGRectGetHeight(layer.bounds) / 2 - heightDiff / 2);
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}
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- (CAShapeLayer*)ringAnimatedLayer {
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if(!_ringAnimatedLayer) {
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CGPoint arcCenter = CGPointMake(self.radius+self.strokeThickness/2+5, self.radius+self.strokeThickness/2+5);
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UIBezierPath* smoothedPath = [UIBezierPath bezierPathWithArcCenter:arcCenter radius:self.radius startAngle:(CGFloat)-M_PI_2 endAngle:(CGFloat) (M_PI + M_PI_2) clockwise:YES];
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_ringAnimatedLayer = [CAShapeLayer layer];
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_ringAnimatedLayer.contentsScale = [[UIScreen mainScreen] scale];
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_ringAnimatedLayer.frame = CGRectMake(0.0f, 0.0f, arcCenter.x*2, arcCenter.y*2);
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_ringAnimatedLayer.fillColor = [UIColor clearColor].CGColor;
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_ringAnimatedLayer.strokeColor = self.strokeColor.CGColor;
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_ringAnimatedLayer.lineWidth = self.strokeThickness;
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_ringAnimatedLayer.lineCap = kCALineCapRound;
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_ringAnimatedLayer.lineJoin = kCALineJoinRound;
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_ringAnimatedLayer.path = smoothedPath.CGPath;
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}
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return _ringAnimatedLayer;
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}
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- (void)setFrame:(CGRect)frame {
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if(!CGRectEqualToRect(frame, super.frame)) {
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[super setFrame:frame];
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if(self.superview) {
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[self layoutAnimatedLayer];
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}
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}
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}
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- (void)setRadius:(CGFloat)radius {
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if(radius != _radius) {
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_radius = radius;
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[_ringAnimatedLayer removeFromSuperlayer];
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_ringAnimatedLayer = nil;
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if(self.superview) {
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[self layoutAnimatedLayer];
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}
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}
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}
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- (void)setStrokeColor:(UIColor*)strokeColor {
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_strokeColor = strokeColor;
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_ringAnimatedLayer.strokeColor = strokeColor.CGColor;
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}
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- (void)setStrokeThickness:(CGFloat)strokeThickness {
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_strokeThickness = strokeThickness;
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_ringAnimatedLayer.lineWidth = _strokeThickness;
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}
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- (void)setStrokeEnd:(CGFloat)strokeEnd {
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_strokeEnd = strokeEnd;
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_ringAnimatedLayer.strokeEnd = _strokeEnd;
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}
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- (CGSize)sizeThatFits:(CGSize)size {
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return CGSizeMake((self.radius+self.strokeThickness/2+5)*2, (self.radius+self.strokeThickness/2+5)*2);
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}
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@end
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