ios - 倒数计时器的圆形进度条/PIE

Question

我在我的应用程序中有一个 15 秒计时器的要求，在圆形进度条动画中将在秒数的中心包含标签

下面的代码给出了从 0.0 到 1.0f 的 labelprogress，但我想将它映射到 15 秒倒计时的平滑动画，如果有定时器扩展器，它应该通过平滑动画添加时间

例如:首先我需要从 15 秒开始，如果用户点击 timeextender powerup 并且当前时间是 10 秒，那么它应该是 25 秒并且进度条百分比应该有效。

那么我需要映射什么逻辑才能完成上述要求

- (void)progressChange
{

    // Labeled progress views
    NSArray *labeledProgressViews = @[//self.labeledProgressView,
                                      self.labeledLargeProgressView];
    for (DALabeledCircularProgressView *labeledProgressView in labeledProgressViews) {
        CGFloat progress = ![self.timer isValid] ? self.stepper.value / 10.0f : labeledProgressView.progress + 0.01f;
        [labeledProgressView setProgress:progress animated:YES];


        labeledProgressView.progressLabel.text = [NSString stringWithFormat:@"%.2f", labeledProgressView.progress];
    }


}


- (void)startAnimation
{
    self.timer = [NSTimer scheduledTimerWithTimeInterval:0.03
                                                  target:self
                                                selector:@selector(progressChange)
                                                userInfo:nil
                                                 repeats:YES];
    self.continuousSwitch.on = YES;
}

- (void)stopAnimation
{
    [self.timer invalidate];
    self.timer = nil;
    self.continuousSwitch.on = NO;
}

- (IBAction)TimeExtender:(id)sender
{
   if (labeledProgressView.progress >= 1.0f && [self.timer isValid]) {
           [labeledProgressView setProgress:0.f animated:YES];
        }
}

Answer 1

代码是我自己解决的

- (void)progressChange
{

    CGFloat progress ;
    DALabeledCircularProgressView *labeledProgressView = self.labeledLargeProgressView;
    if(labeledProgressView.progress >=1.0f && [self.timer isValid]){
        [self stopAnimation];
         seconds = 15.0f;
    }
    else{
        progress=labeledProgressView.progress + 0.06666667f;
        [labeledProgressView setProgress:progress animated:YES];
        seconds --;
        labeledProgressView.progressLabel.text = [NSString stringWithFormat:@"%i", seconds];
    }


}

- (void)startAnimation
{
    self.timer = [NSTimer scheduledTimerWithTimeInterval:1.0
                                                  target:self
                                                selector:@selector(progressChange)
                                                userInfo:nil
                                                 repeats:YES];
    self.continuousSwitch.on = YES;
}