蘋果開發之iOS加入購物車動畫效果

代碼如下

複製代碼

#pragma mark -購物籃按鈕點擊事件 -(void)shoppingCartButtonAction:(UIButton*)sender {     if ([[userDef objectForKey:@"id"]isEqualToString:@"0"]) {         [self showHUDTextOnly:@"請登入後，再進行操作" ];         return;     }     NSDictionary *parameters = @{                                  @"user_id":[userDef objectForKey:@"id"],                                  @"gp_id":[NSString stringWithFormat:@"%@",[cell2Array[sender.tag - 101] objectForKey:@"gp_id"]],                                  @"number" :@1                                  };     [self defaultRequestwithURL:KAddToCartURL withParameters:parameters withMethod:@"POST" withBlock:^(NSDictionary *dict, NSError *error){          if ([[dict objectForKey:kCode] integerValue]==1) {              //該部分動畫 以self.view為參考系進行              UIImageView *imageView=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"button_hot_shopping-cart_red-1"]];              imageView.contentMode=UIViewContentModeCenter;              imageView.frame = sender.bounds;              imageView.hidden=YES;              CGPoint point= sender.frame.origin;              imageView.center=point;              CALayer *layer=[[CALayer alloc]init];              layer.contents=imageView.layer.contents;              layer.frame=imageView.frame;              layer.opacity=1;              [self.view.layer addSublayer:layer];              //動畫 終點 都以sel.view為參考系              CGPoint endpoint= CGPointMake(SCREEN_WIDTH*7/10.0, SCREEN_HEIGHT - 22);              UIBezierPath *path=[UIBezierPath bezierPath];              //動畫起點              CGRect rect=[sender convertRect: sender.bounds toView:self.view];              CGPoint startPoint=CGPointMake(rect.origin.x +rect.size.width/2, rect.origin.y +rect.size.height/2);              [path moveToPoint:startPoint];              //貝茲路徑中間點              float sx=startPoint.x;              float sy=startPoint.y;              float ex=endpoint.x;              float ey=endpoint.y;              float x=sx+(ex-sx)/3;              float y=sy+(ey-sy)*0.5-400;              CGPoint centerPoint=CGPointMake(x,y);              [path addQuadCurveToPoint:endpoint controlPoint:centerPoint];                            CAKeyframeAnimation *animation=[CAKeyframeAnimation animationWithKeyPath:@"position"];              animation.path = path.CGPath;              animation.removedOnCompletion = NO;              animation.fillMode = kCAFillModeForwards;              animation.duration=0.8;              animation.delegate=self;              animation.autoreverses= NO;              animation.timingFunction=[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];              [layer addAnimation:animation forKey:@"buy"];              //更新角標              [self cornerNumber];          }else {              [self showHUDTextOnly:[dict objectForKey:kMessage]];         }      }]; }