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nuke-input

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    nuke-input

输入框


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24
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Input

  • category: UI
  • chinese: 输入框
  • type: UI组件

API

属性配置说明类型默认值
type键盘类型,可选 text url password tel date time emailstringtext
autoFocus自动获得焦点booleanfalse
maxLength最大长度numberundefined
multiple是否为多行,不选则为单行boolfalse
value当前的value 值string
defaultValue初始化的value 值(非受控用法)string
disabled状态 设置文本域禁用状态booleanfalse
onInput输入事件function(e)false
onFocusFocus事件functionfalse
onBlurBlur事件functionfalse
onChangechangefunction(value, e)
onReturn仅 native 有效,return 事件,用户在手机上点击了 return 键触发(键盘右下角),返回值 e {returnKeyType:'类型',value:'输入框的值'}function(e)false
returnKeyType仅 native 有效,return 键展示类型(键盘右下角的那个键),可选 default go next search send donestringdefault
focus 实例方法让input获得焦点function
blur 实例方法让input失去焦点function
rows多行input中可同时显示的行数number2

关于 defaultValue 与 value (非受控与受控的差别)

  • defaultValue : 传入 value 默认值,用于 constructor 中计算使用,生命周期函数改变也不会再改变。
<Input defaultValue="羊绒大衣" onChange={(value,e)=>{console.log(value)}} />
  • value: 受控用法,会随着生命周期函数改变而改变。
<Input value={this.state.value} onChange={(value,e)=>{console.log(value)}}/>

实例方法 focusblur

    //在某些情况下需要让 myinput 强制失去焦点
    focus = (e) => {
        this.refs.myinput.focus();
    }
    blur = (e) => {
        this.refs.myinput.blur();
    }
    change = (value,e) => {
        console.log(value);//强制失去焦点后,会触发 onCchange
    }
    render(){
        return (
            <View>
                <Input ref="myinput" onChange={this.change}/>
                <Button type="primary" onPress={this.focus}>点我让input获得焦点</Button>
                <Button type="primary" onPress={this.blur}>失去焦点,获取输入内容</Button>
            </View>
        )
    }

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Last updated on 28 Jun 2018

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