KGModal
KGModal is an easy drop in control that allows you to display any view in a modal popup. The modal will automatically scale to fit the content view and center it on screen with nice animations!
KGModal允许你用pop出你的view，要显示的view会自动的缩放到合适的级别，并在屏幕中间，动画效果很炫哦！
You supply your own content view and KGModal does the rest:
你需要提供你的内容view，之后就交给KGModal就行了：
[[KGModal sharedInstance] showWithContentView:contentView andAnimated:YES];
There are a couple other options but it‘s purposely designed to be simple and easy to use:
当然，还有好多其他属性供你设置，使用起来很简单哦：
// Determines if the modal should dismiss if the user taps outside of the modal view
// Defaults to YES
@property (nonatomic) BOOL tapOutsideToDismiss;
// Determines if the close button or tapping outside the modal should animate the dismissal
// Defaults to YES
@property (nonatomic) BOOL animateWhenDismissed;
// Determins close button type (None/Left/Right)
// Defaults to Left
@property (nonatomic) KGModalCloseButtonType closeButtonType;
// Determines whether close button will display on the left or right
// Defaults to left
@property (nonatomic) KGModalCloseButtonLocation closeButtonLocation;
// The background color of the modal window
// Defaults black with 0.5 opacity
@property (strong, nonatomic) UIColor *modalBackgroundColor;
// The background display style, can be a transparent radial gradient or a transparent black
// Defaults to gradient, this looks better but takes a bit more time to display on the retina iPad
@property (nonatomic) enum KGModalBackgroundDisplayStyle backgroundDisplayStyle;
// The shared instance of the modal
+ (id)sharedInstance;
// Set the content view to display in the modal and display with animations
- (void)showWithContentView:(UIView *)contentView;
// Set the content view to display in the modal and whether the modal should animate in
- (void)showWithContentView:(UIView *)contentView andAnimated:(BOOL)animated;
// Hide the modal with animations
- (void)hide;
// Hide the modal with animations,
// run the completion after the modal is hidden
- (void)hideWithCompletionBlock:(void(^)())completion;
// Hide the modal and whether the modal should animate away
- (void)hideAnimated:(BOOL)animated;
// Hide the modal and whether the modal should animate away,
// run the completion after the modal is hidden
- (void)hideAnimated:(BOOL)animated withCompletionBlock:(void(^)())completion;
Check out the ExampleApp to see it in action!
你可以在ExampleApp中查看效果！
Add pod ‘KGModal‘, ‘~> 0.0.1‘ to your Podfile and run pod to install.
添加 KGModal ，然后运行pod来安装。
原文：http://www.cnblogs.com/YouXianMing/p/4160595.html