import { ElementRef, Renderer, EventEmitter } from 'angular2/core';
import { NgControl } from 'angular2/common';
/**
* @name SegmentButton
* @description
* The child buttons of the `ion-segment` component. Each `ion-segment-button` must have a value.
* @property {string} [value] - the value of the segment-button. Required.
* @usage
* ```html
*
*
* Friends
*
*
* Enemies
*
*
*```
*
* Or with `FormBuilder`
*
*```html
*
* ```
*
* @property {Any} [click] - expression to evaluate when a segment button has been clicked
*
* @demo /docs/v2/demos/segment/
* @see {@link /docs/v2/components#segment Segment Component Docs}
* @see {@link /docs/v2/api/components/segment/Segment/ Segment API Docs}
*/
export declare class SegmentButton {
private _renderer;
private _elementRef;
value: string;
select: EventEmitter;
constructor(_renderer: Renderer, _elementRef: ElementRef);
/**
* @private
* On click of a SegmentButton
*/
private onClick(ev);
ngOnInit(): void;
isActive: any;
}
/**
* @name Segment
* @description
* A Segment is a group of buttons, sometimes known as Segmented Controls, that allow the user to interact with a compact group of a number of controls.
* Segments provide functionality similar to tabs, selecting one will unselect all others. You should use a tab bar instead of a segmented control when you want to let the user move back and forth between distinct pages in your app.
* You could use Angular 2's `ngModel` or `FormBuilder` API. For an overview on how `FormBuilder` works, checkout [Angular 2 Forms](http://learnangular2.com/forms/), or [Angular FormBuilder](https://angular.io/docs/ts/latest/api/common/FormBuilder-class.html)
*
*
* @usage
* ```html
*
*
* Friends
*
*
* Enemies
*
*
*```
*
* Or with `FormBuilder`
*
*```html
*
* ```
*
* @property {Any} [change] - expression to evaluate when a segment button has been changed
*
* @demo /docs/v2/demos/segment/
* @see {@link /docs/v2/components#segment Segment Component Docs}
* @see [Angular 2 Forms](http://learnangular2.com/forms/)
*/
export declare class Segment {
_buttons: any;
change: EventEmitter;
value: any;
constructor(ngControl: NgControl);
/**
* @private
* Write a new value to the element.
*/
writeValue(value: any): void;
/**
* @private
*/
ngAfterViewInit(): void;
/**
* @private
* Set the function to be called when the control receives a change event.
*/
registerOnChange(fn: any): void;
/**
* @private
* Set the function to be called when the control receives a touch event.
*/
registerOnTouched(fn: any): void;
}