ios - 手势或手势时如何显示IOS的放大镜

Question

当我点击手势时，我想显示 iOS 7 的放大镜UITextView。

请帮我！！！！

Answer 1

请检查下面的链接。所有库都与放大镜示例应用程序有关

https://github.com/search?l=Objective-C&q=magnifying+glass&type=Repositories&utf8=%E2%9C%93

Answer 2

将此代码添加到您已调用子类 UITextfield 的 .m 文件中

   -(void)addGestureRecognizer:(UIGestureRecognizer *)gestureRecognizer 
  {
    //Prevent zooming but not panning
     if ([gestureRecognizer isKindOfClass:[UILongPressGestureRecognizer class]]) 
        {
              gestureRecognizer.enabled =YES;
        }
       [super addGestureRecognizer:gestureRecognizer];
        return;
   }