import "JDTView.h"
@interface JDTView()
//进度圆环
@property (nonatomic, strong) CAShapeLayer *shapeLayer;
@property (nonatomic, strong)NSTimer *timer;
@end
static CGFloat endFloat;
@implementation JDTView
- (instancetype)initWithFrame:(CGRect)frame{
if (self = [super initWithFrame:frame]) {
[self setBackgroundColor:[UIColor whiteColor]];
}
[self initUI];
return self;
}
- (void)initUI{
// [UIBezierPath bezierPathWithArcCenter:CGPointMake(self.width / 2, self.height / 2) radius:(self.width - 20)/2 startAngle:M_PI / 4 + M_PI / 2 endAngle:M_PI / 4 clockwise:YES]
UIBezierPath * bezier = [UIBezierPath bezierPathWithArcCenter:CGPointMake(self.frame.size.width/2, self.frame.size.height/2) radius:self.frame.size.width/2 startAngle:0 endAngle:M_PI * 2 clockwise:YES];
[[UIColor blackColor]set];
bezier.lineWidth = 2;
[bezier stroke];
CAShapeLayer *bgLayer = [CAShapeLayer layer];
bgLayer.frame = self.bounds;
bgLayer.fillColor = [UIColor clearColor].CGColor;//填充色 - 透明
bgLayer.lineWidth = 20.f;
bgLayer.strokeColor = [UIColor groupTableViewBackgroundColor].CGColor;//线条颜色
bgLayer.strokeStart = 0;//起始点
bgLayer.strokeEnd = 1;//终点
// bgLayer.lineCap = kCALineCapRound;//让线两端是圆滑的状态
bgLayer.path = bezier.CGPath;//这里就是把背景的路径设为之前贝塞尔曲线的那个路径
[self.layer addSublayer:bgLayer];
_shapeLayer = [CAShapeLayer layer];
_shapeLayer.frame = self.bounds;
_shapeLayer.fillColor = [UIColor clearColor].CGColor;
_shapeLayer.lineWidth = 20.0f;
_shapeLayer.lineCap = kCALineCapRound;
_shapeLayer.strokeColor = [UIColor blueColor].CGColor;
_shapeLayer.strokeStart = 0;
_shapeLayer.strokeEnd = 0;
_shapeLayer.path = bezier.CGPath;
[self.layer addSublayer:_shapeLayer];
}
- (void)animateToProgress:(CGFloat)progress{
// if(_shapeLayer.strokeEnd != 0){
// [self animateToZero];
// }
__weak typeof(self)weakSelf = self;
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(_shapeLayer.strokeEnd * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[weakSelf deleteTimer];
NSString *progressStr = [NSString stringWithFormat:@"%lf",progress];
NSDictionary *userInfo = @{@"progressStr":progressStr};
weakSelf.timer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:weakSelf selector:@selector(animate:) userInfo:userInfo repeats:YES];
});
}
- (void)animate:(NSTimer *)time{
CGFloat progress = [[time.userInfo objectForKey:@"progressStr"] floatValue];
if(_shapeLayer.strokeEnd <= progress){
_shapeLayer.strokeEnd += 0.01;
}else{
[self deleteTimer];
}
}
//暂停
- (void)animateToZero{
//获取暂停时当前的 endFloat
endFloat = _shapeLayer.strokeEnd;
[self deleteTimer];
NSString *progressStr = [NSString stringWithFormat:@"%lf",endFloat];
NSDictionary *userInfo = @{@"endStr":progressStr};
self.timer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(animateReset:) userInfo:userInfo repeats:YES];
}
- (void)animateReset:(NSTimer *)time{
if(_shapeLayer.strokeEnd > 0){
_shapeLayer.strokeEnd = [[time.userInfo objectForKey:@"endStr"] floatValue];
}else{
[self deleteTimer];
}
}
- (void)deleteTimer{
[self.timer invalidate];
self.timer = nil;
}
@end