//step 1 : set up configuration
LTxPopupMenuConfiguration* config = [LTxPopupMenuConfiguration defaultConfiguration];
config.rowHeight = UITableViewAutomaticDimension;
config.menuContentSize = CGSizeMake(360, 200);
config.separatorStyle = UITableViewCellSeparatorStyleNone;
config.cellNib = [UINib nibWithNibName:@"LTxMenuItemTableViewCell" bundle:nil];

//step 2: protocol method
-(NSInteger)ltx_numberOfRows{
    return _dataSource.count;
}
-(void)ltx_configMenuCellItem:(UITableViewCell*)cell forIndex:(NSInteger)index{
   NSDictionary* item = [_dataSource objectAtIndex:index];
   if ([cell isKindOfClass:[LTxMenuItemTableViewCell class]]) {
       LTxMenuItemTableViewCell* nibCell = (LTxMenuItemTableViewCell*)cell;
       nibCell.item = item;
   }
}
-(void)ltx_selectedIndex:(NSInteger)index{
   NSLog(@"%td row is selected",index);
}

//step 3: show
[self showLTxPopupMenuFrom:sender configuration:config delegate:self];

//arrow color. default is [UIColor whiteColor]
@property (nonatomic, strong) UIColor* arrowColor;

//arrow direction. default is UIPopoverArrowDirectionAny
@property (nonatomic, assign) UIPopoverArrowDirection arrowDirection;

//menu content size. default is CGSizeMake(200, 300)
@property (nonatomic, assign) CGSize menuContentSize;

/**
* menu item height. default is 50.f
* you should set it to UITableViewAutomaticDimension when estimoting row height
**/
@property (nonatomic, assign) CGFloat rowHeight;
/**
* estimoted item height. default is 50.f
**/
@property (nonatomic, assign) CGFloat estimatedRowHeight;
/**
* menu item separator style. default is line
**/
@property (nonatomic, assign) UITableViewCellSeparatorStyle separatorStyle;
/**
* menu item separator line color. default is [UIColor lightGrayColor]
**/
@property (nonatomic, strong) UIColor* separatorColor;
/**
* menu item cell style. default is UITableViewCellStyleDefault
**/
@property (nonatomic, assign) UITableViewCellStyle itemStyle;
/**
* menu scroll indicator. default value is NO.
**/
@property (nonatomic, assign) BOOL showsScrollIndicator;
/**
* when you want to use nib with LTxPopupMenu item.
**/
@property (nonatomic, strong) UINib* cellNib;

/**
* @brief: init method. also you can use alloc and init method.
**/
+(instancetype)defaultConfiguration;

@required
/**
* number of rows in popupMenu
**/
-(NSInteger)ltx_numberOfRows;

/**
* custom menu item at index
**/
-(void)ltx_configMenuCellItem:(UITableViewCell*)cell forIndex:(NSInteger)index;


@optional
/**
* menu item is selected at index
**/
-(void)ltx_selectedIndex:(NSInteger)index;

   LTxPopupViewConfiguration* config = [LTxPopupViewConfiguration defaultConfiguration];
   config.containerBackgroundColor = [[UIColor brownColor] colorWithAlphaComponent:0.2];//outside color
   config.cornerSize = 25.f;//corner size
   config.dismissOnTapOutside = NO;//dismiss on tap outside
   //animation setting
   config.showAnimationType = LTxPopupShowAnimationAppear;
   config.showAnimationDuration = .6f;
   config.hideAnimationType = LTxPopupHideAnimationFadeOut;
   config.hideAnimationDuration = .4f;

   //show
   [self.view showLTxPopupView:popView configuration:config];

   //hide. You may not need it if you set dismissOnTapOutside = YES
   [self.view hideLTxPopupView];

   LTxPopupToastConfiguration* configuration = [LTxPopupToastConfiguration defaultConfiguration];
   configuration.image = [UIImage imageNamed:@"teal_checkmark"];
   configuration.title = @"Notification";
   configuration.message = @"This liangtong from zhengzhou. thanks very much.   😄 ";
   
   [LTxPopupToast showLTxPopupToastWithConfiguration:configuration show:^{
       NSLog(@"popup toast show complete");
   } tap:^{
       NSLog(@"tap at popup toast ");
   } dismiss:^{
       NSLog(@"popup toast dismissed");
   }];

@interface LTxPopupToastConfiguration : NSObject

/**
* show under status bar
**/
@property (nonatomic, assign) BOOL showUnderStatusBar;

/**
* background color
**/
@property (nonatomic, strong) UIColor* backgroundColor;

/**
* image on the left of toast. nil means no image
**/
@property (nonatomic, strong) UIImage* image;

/**
* ignore btn. title color and font
**/
@property (nonatomic, assign) BOOL showIgnoreBtn;
@property (nonatomic, strong) NSString* ignoreBtnTitle;
@property (nonatomic, strong) UIColor* ignroeBtnTitleColor;
@property (nonatomic, assign) CGFloat ignoreBtnTitleFontSize;

/**
* title
**/
@property (nonatomic, strong) NSString* title;
@property (nonatomic, assign) NSTextAlignment titleTextAlignment;
@property (nonatomic, strong) UIColor* titleColor;
@property (nonatomic, assign) CGFloat titleFontSize;

/**
* message
**/
@property (nonatomic, strong) NSString* message;
@property (nonatomic, assign) NSTextAlignment messageTextAlignment;
@property (nonatomic, strong) UIColor* messageColor;
@property (nonatomic, assign) CGFloat messageFontSize;

/**
* animating
**/
@property (nonatomic, assign) CGFloat showAnimateDuration;
@property (nonatomic, assign) CGFloat showDuration;
@property (nonatomic, assign) BOOL autoDismiss;

/**
* @brief: init method. also you can use alloc and init method.
**/
+(instancetype)defaultConfiguration;
@end

   UIAlertAction* cancelAction = ...;
   UIAlertAction* okAction = ...;
   UIAlertAction* desAction = ...;

   [self showLTxPopupAlertWithTitle:@"提醒"
                            message:@"这是一个AlertViewController"
                              style:UIAlertControllerStyleAlert
                         sourceView:nil
                            actions:cancelAction,okAction,desAction,nil];