我已经意识到onPress处理程序是无用的,因为我无法获得按下的种族参考.我得到ref没有定义错误.

var races = Engine.possibleRaces;
 
function racePressed(ref) {
    console.log("REF: " + ref); // is never called
}
 
var races = Engine.possibleRaces;
var rowViews = [];
for (var i = 0; i < races.length; i++) {
  rowViews.push(
    <Text
      ref={i}
      onPress={() => racePressed(ref)} // ref is not defined
      style={styles.raceText}>{races[i].text}
    </Text>
 
  );
}
 
<View style={{width: Screen.width,flexDirection:'row',flexWrap: 'wrap',alignItems: "center"}}>
       {rowViews}
</View>@H_301_6@ 
 
我也尝试将i作为参数传递.它不起作用,因为它在迭代结束后具有值.基本上它有races.length值.
 
  
 
onPress={() => racePressed(i)} // Same as races.length@H_301_6@ 
 
编辑：
 
 
我确实将问题隔离到以下程序.
 
  
 
'use strict';
import React,{
  AppRegistry,Component,StyleSheet,Text,View
} from 'react-native';
let texts = [{text: "Click wrapper text1"},{text: "Click wrapper text2"}];
class sandBox extends Component {
  rowPressed(ref,i) {
    console.log("rowPressed: " + ref + " " + i)
  }
  render() {
    var rows = [];
    for (var i = 0; i < texts.length; i++) {
      rows.push(
        <Text
          ref={i}
          onPress={() => this.rowPressed.bind(this,i)}
          style={styles.raceText}>{texts[i].text}
        </Text>
      );
    }
    return (
      <View style={styles.container}>
        <View>
          {rows}
        </View>
      </View>
    );
  }
}
const styles = StyleSheet.create({
  container: {
    flex: 1,justifyContent: 'center',alignItems: 'center'
  }
});
AppRegistry.registerComponent('sandBox',() => sandBox);@H_301_6@ 
 
除非跟随警告,否则不会调用回调并且不会抛出任何错误
 
  
 
[tid:com.facebook.React.JavaScript] Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of `sandBox`. See https://fb.me/react-warning-keys for more information.@H_301_6@