iOS添加到购物车的简单动画效果

来源：互联网发布：防御矩阵觉醒编辑：程序博客网时间：2024/05/17 00:52

#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

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