ionic2 textarea Automatically grows

Installation

npm install angular2-elastic

Quick Start

1. Import the ElasticModule.
2. Add the directive fz-elastic to your textarea or ion-textarea.
3. Watch as your textareas automatically grow and shrink depending on their content.

Angular 2

1. Import the ElasticModule:

import { NgModule }      from '@angular/core';

import { BrowserModule } from '@angular/platform-browser';

import { FormsModule }   from '@angular/forms';

import { ElasticModule } from 'angular2-elastic';

 

import { AppComponent }  from './app.component';

 

@NgModule({

  imports: [

    BrowserModule,

    FormsModule,

    ElasticModule

  ],

  declarations: [

    AppComponent

  ],

  bootstrap: [ AppComponent ]

})

export class AppModule {}

 

2. Use the directive in your component HTML:

import { Component } from '@angular/core';

 

@Component({

  selector: 'my-app',

  template: `<textarea fz-elastic></textarea>`

})

export class AppComponent {};

 

That's it! Your textarea will now grow and shrink as you type.

The textarea will also respond to changes from any one or two way bindings that are setup, e.g. with [(ngModel)].

 

Ionic 2

1. Import the module as above.
2. Use the directive on an ion-textarea instead:

<ion-textarea fz-elastic></ion-textarea>

 

https://github.com/stevepapa/angular2-autosize

转载于:https://www.cnblogs.com/brucejchen/p/7483774.html