iphone - Ios应用程序图标类

Question

是否有与主屏幕上的应用程序图标对应的 UI 类？

或者某种类似的按钮也有摆动效果的方法？

Answer 1

简答，不。

开发人员可以使用 SDK 重新创建这些效果。使用图像(应用程序图标)制作自定义 UIButton 非常简单。然后只需添加适当的长按手势处理即可激活按钮的可编辑状态并开始摆动。

-(void)viewDidLoad {
  // make a UIButton
  UIButton *myWiggleButton = [UIButton buttonWithType:UIButtonTypeCustom];
  // set an image for the button
  [myWiggleButton setImage:[UIImage imageNamed:@"my_app_image.png"] forState:UIControlStateNormal];
      // add an action and target for the button
  [myWiggleButton addTarget:self action:@selector(myButtonTapped:)   forControlEvents:UIControlEventTouchUpInside];
      // finally add a long touch gesture recognizer
  UILongPressGestureRecognizer *longPressGesture =
                [[[UILongPressGestureRecognizer alloc]
                  initWithTarget:self action:@selector(startWiggleMode:)] autorelease];
  [myWiggleButton addGestureRecognizer:longPressGesture];
}

-(void)startWiggleMode:(UIGestureRecognizer*)recognizer
{
  // start a wiggling animation for the button.
  // add a UIButton for the 'x' on top of the wiggling button
}

-(void)myButtonTapped:(id)sender
{
  // handle button tap case here.
}