我有一个带有 Tap 手势识别器的视图。当我触摸它时，会出现一个修改背景颜色的动画。我的问题是，当我将我的视图子类化以覆盖 drawRect 方法时，我的动画不再播放......我该如何解决这个问题？对不起我的英语并提前感谢=）
- (void)drawRect:(CGRect)rect
{
[super drawRect:rect];
NSLog(@"DrawRect test");
//H Black line
CGContextRef c = UIGraphicsGetCurrentContext();
CGFloat black[4] = {0.0f, 0.0f, 0.0f, 0.5f};
CGContextSetStrokeColor(c, black);
CGContextBeginPath(c);
CGContextMoveToPoint(c, 319.0f, 0.0f);
CGContextAddLineToPoint(c, 319.0f, 55.0f);
CGContextStrokePath(c);
//H White Line
c = UIGraphicsGetCurrentContext();
CGFloat white[4] = {1.0f, 1.0f, 1.0f, 0.1f};
CGContextSetStrokeColor(c, white);
CGContextBeginPath(c);
CGContextMoveToPoint(c, 0.0f, 1.0f);
CGContextAddLineToPoint(c, 320.0f, 1.0f);
CGContextStrokePath(c);
//V White Line
c = UIGraphicsGetCurrentContext();
CGContextSetStrokeColor(c, black);
CGContextBeginPath(c);
CGContextMoveToPoint(c, 0.0f, 54.0f);
CGContextAddLineToPoint(c, 320.0f, 54.0f);
CGContextStrokePath(c);
}
还有我的动画：
//Debut
if (sender.state == UIGestureRecognizerStateBegan) {
[UIView animateWithDuration:0.7 animations:^{
[self.foreView setBackgroundColor:RGBA(RED_CELL, GREEN_CELL, BLUE_CELL, 0.6f)];
}];
}
//Fin
if (sender.state == UIGestureRecognizerStateEnded) {
[UIView animateWithDuration:0.4 animations:^{
[self.foreView setBackgroundColor:[UIColor clearColor]];
}];
}
我的子视图是如何添加的
//foreView
_foreView = [[ForeViewCell alloc] initWithFrame:CGRectMake(0, 0, 320, 55)];
[self.foreView setTranslatesAutoresizingMaskIntoConstraints:NO];
[self.foreView setBackgroundColor:[UIColor clearColor]];
[self.contentView addSubview:self.foreView];