[翻译] IGLDropDownMenu

IGLDropDownMenu

An iOS drop down menu with pretty animation.

一种iOS点击下拉菜单样式，动画效果很绚丽。

Screenshot - 截图

How To Use - 如何使用

!Try the demo. It‘s really helpful! 试试demo，看看效果哦！

Sample Code - 示例源码

1. Create your IGLDropDownItem array and set up 创建IGLDropDownItem数组然后进行设置

   NSMutableArray *dropdownItems = [[NSMutableArray alloc] init];
   IGLDropDownItem *item = [[IGLDropDownItem alloc] init];
   [item setIconImage:[UIImage imageNamed:@"icon.png"]];
   [item setText:@"title"];
   [dropdownItems addObject:item];

2. Create your IGLDropDownMenu and set the up the parameter name dropDownItems 创建你的IGLDropDownMenu，设置dropDownItems的名字

   IGLDropDownMenu *dropDownMenu = [[IGLDropDownMenu alloc] init];
   [dropDownMenu setFrame:CGRectMake(0, 0, 200, 45)];
   dropDownMenu.menuText = @"Choose Weather";
   dropDownMenu.menuIconImage = [UIImage imageNamed:@"chooserIcon.png"]];
   dropDownMenu.paddingLeft = 15;  // padding left for the content of the button

3. modify the params of IGLDropDownMenu 修改IGLDropDownMenu的参数

   dropDownMenu.type = IGLDropDownMenuTypeStack;
   dropDownMenu.gutterY = 5;
   dropDownMenu.itemAnimationDelay = 0.1;
   dropDownMenu.rotate = IGLDropDownMenuRotateRandom;

4. Call the reloadView method (Very Important!) 执行reloadView（非常重要！）

   // every time you change the params you should call reloadView method
   [dropDownMenu reloadView];

Parameters - 参数

These are just some of the parameters you can use, you can find more(or make more) in the code.

你可以使用很多很多的参数，详情请参考源码吧。

For IGLDropDownMenu

• animationDuration set the duration(s) of the animation in second 设置动画时间
• animationOption set the UIViewAnimationOptions for the animation 设置动画样式

• itemAnimationDelay set the delay(s) before each of item start to animate 设置每个item的延时动画时间

• direction set the direction when the menu expand 设置菜单展开的方向

  • IGLDropDownMenuDirectionDown default value, expand downward
  • IGLDropDownMenuDirectionUp expand upward

• rotate set the rotate style when the menu on expand 设置菜单展开时候的旋转风格

  • IGLDropDownMenuRotateNone default value, for no rotate
  • IGLDropDownMenuRotateLeft rotate to left on expand
  • IGLDropDownMenuRotateRight rotate to right on expand
  • IGLDropDownMenuRotateRandom rotate random on expand every single time

• type set the menu type (remember when you set the type to SlidingIn* you can‘t have the rotate type at the same time.) 设置菜单样式

  • IGLDropDownMenuTypeNormal default value, item will hide behind the menu button on fold
  • IGLDropDownMenuTypeStack item will hide behind the menu button and make a stack like look
  • IGLDropDownMenuTypeSlidingInBoth item will slide in and out from both sides
  • IGLDropDownMenuTypeSlidingInFromLeft item will slide in from left
  • IGLDropDownMenuTypeSlidingInFromRight item will slide in from right

• slidingInOffset set the offset value for the items slide in and out 设置item滑进来时候的偏移量

• gutterY set the Y gutter between items 设置item之间的间隔
• alphaOnFold set the item alpha value when menu on fold, only use this when the style won‘t fit your mind 菜单层叠时候的透明度
• flipWhenToggleView when you set this to true, the menu button will flip up when you click 当你设置这个值为true，这个按钮会向上翻
• useSpringAnimation use the spring animation for iOS7 or higher version, default is true 使用spring动画效果，默认开启

For IGLDropDownItem

• iconImage set the icon image for the item 设置item的图片
• text set the text string for the item 设置text
• textLabel for you to adjust the text label style 方便你设置调整Label样式
• object you can store your custom item in this preporty 你可以用它来存储你的自定义item

Remember the menuButton in IGLDropDownMenu is also an IGLDropDownItem.

请记住，在IGLDropDownMenu中，menuButton也是IGLDropDownItem。

Requirements - 需要

• target platform: >=iOS 6.0 (I never test the version below 6.0, maybe you can make some try and tell me.)  >iOS6.0
• ARC ARC

TODO - 以后要做的事情

1. make IGLDropDownItem more customizable 让IGLDropDownItem可定制程度更高
2. add the spring animation for iOS 7 or higher version
3. add more animation effect for the menu 更多的动画效果
4. just contact me and tell me more 联系我，给我建议帮我改进

Thanks - 感谢

This drop-down menu idea is come from here, I found this demo one day and just implement it on iOS.

这个菜单的主意来自于 here，我发现了这个demo后，然后在iOS上实现了。

原文：http://www.cnblogs.com/YouXianMing/p/4191068.html