iOS添加到购物车的简单动画效果

[objc] view plaincopyprint?





[objc] view plaincopyprint?





#pragma mark - 添加到购物车的动画效果

// huangyibiao

- (void)addAnimatedWithFrame:(CGRect)frame {

// 该部分动画 以self.view为参考系进行

frame = [[UIApplication sharedApplication].keyWindow convertRect:frame fromView:self.RFcell.headBtn];

UIButton *move = [[UIButton alloc] initWithFrame:frame];

[move setBackgroundColor:UIColorFromRGB(0xFFA215)];

[move setTitle:self.RFcell.headBtn.currentTitle forState:UIControlStateNormal];

[move setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];

move.contentMode = UIViewContentModeScaleToFill;

[[UIApplication sharedApplication].keyWindow addSubview:move];

// 加入购物车动画效果

[UIView animateWithDuration:1.2 animations:^{

move.frame = CGRectMake(320 - frame.size.width - 20, 24,

frame.size.width, frame.size.height);

} completion:^(BOOL finished) {

[move removeFromSuperview];

if (self.cartCategoriesLabel == nil) {

self.cartCategoriesLabel = [[UILabel alloc] initWithFrame:CGRectMake((16 - 8) / 2, (16 - 8) / 2, 8, 8)];

self.cartCategoriesLabel .textColor = [UIColor whiteColor];

self.cartCategoriesLabel .backgroundColor = [UIColor clearColor];

self.cartCategoriesLabel .textAlignment = NSTextAlignmentCenter;

self.cartCategoriesLabel .font = [UIFont systemFontOfSize:9];

UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(15, 8, 16, 16)];

imgView.image = [UIImage imageNamed:@"news"];

[imgView addSubview:self.cartCategoriesLabel];

[self.cartButton addSubview:imgView];

}

self.cartCategoriesLabel .text = [NSString stringWithFormat:@"%d", _cartCategories.count];

}];

return;

}

frame参数是按钮的frame，也就是原来所在父视图上的Frame

这里会将原来的frame转换成window上的frame

在动画完成后，更新显示购物车中的商品种类数