React native:动态调用方法

constructor(props) {
  super(props);
  this.inputs = {};
}


//  params Object should be in this format   {id:324, referenceKey: 'one'};

renderTextInput(params) {
  return <TextInput ref={input => { this.inputs[params.referenceKey] = input }}/>
} 

componentDidMount(){
  this.inputs['one'].focus()
}

你应该使用 current :

this.myInput.current[id]

方法如下:

// First, create a reference (in the constructor)
this.myInput = React.createRef()
// Then, assign the ref (in the element)
 <TextInput ref={this.myInput} />
// Now, to access the reference
// this.myInput.current.<<property you wanted to access>>
this.myInput.current[id] // id is defined as a variable
// this will get the dom id
// this.myInput.current.id

但是如果你坚持使用回调ref,就像你现在使用的一样,那么你可以传递id属性:(另外,我认为你要寻找的答案是)

renderInput(id) {
    <TextInput
        ref={(input) => this.myInput = input}
        id={id} {/* you were missing this in fact */}
    />
}

this.myInput.id // will work fine, coz we have id prop now
// gets DOM id that you assigned in your element