Question

我想在onChangeText上传递ID或键值，但它或我只能从Input TextField传递文本值。如何同时传递ID和文本

 "dependencies": {
    "@angular/animations": "4.4.7",
    "@angular/common": "4.4.7",
    "@angular/compiler": "4.4.7",
    "@angular/compiler-cli": "4.4.7",
    "@angular/core": "4.4.7",
    "@angular/forms": "4.4.7",
    "@angular/http": "4.4.7",
    "@angular/platform-browser": "4.4.7",
    "@angular/platform-browser-dynamic": "4.4.7",
    "@angular/tsc-wrapped": "4.4.7",
    "@auth0/angular-jwt": "^1.0.0",
    "@ionic-native/camera": "4.3.3",
    "@ionic-native/core": "^4.3.3",
    "@ionic-native/deeplinks": "4.3.0",
    "@ionic-native/dialogs": "4.3.3",
    "@ionic-native/fcm": "4.3.3",
    "@ionic-native/firebase": "4.3.3",
    "@ionic-native/in-app-browser": "4.3.3",
    "@ionic-native/keyboard": "4.3.3",
    "@ionic-native/local-notifications": "4.3.3",
    "@ionic-native/market": "4.3.3",
    "@ionic-native/network": "4.3.3",
    "@ionic-native/splash-screen": "4.3.3",
    "@ionic-native/status-bar": "4.3.3",
    "@ionic/storage": "2.0.1",
    "angular2-jwt": "^0.2.3",
    "angular2-moment": "^1.8.0",
    "autoprefixer": "^7.1.2",
    "cordova-android": "6.4.0",
    "cordova-browser": "5.0.4",
    "cordova-ios": "4.5.5",
    "cordova-multidex": "git+https://github.com/jwall149/cordova-multidex.git",
    "cordova-plugin-appavailability": "0.4.2",
    "cordova-plugin-badge": "^0.8.8",
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    "cordova-plugin-compat": "^1.2.0",
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    "cordova-plugin-device": "^1.1.7",
    "cordova-plugin-dialogs": "^1.3.4",
    "cordova-plugin-file": "^6.0.1",
    "cordova-plugin-file-transfer": "^1.7.1",
    "cordova-plugin-firebase": "^2.0.5",
    "cordova-plugin-image-resizer": "^1.0.0",
    "cordova-plugin-inappbrowser": "^1.7.2",
    "cordova-plugin-ionic": "^5.2.6",
    "cordova-plugin-ionic-webview": "^2.0.3",
    "cordova-plugin-local-notification": "^0.9.0-beta.2",
    "cordova-plugin-market": "^1.2.0",
    "cordova-plugin-network-information": "^2.0.1",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-statusbar": "^2.4.2",
    "cordova-plugin-whitelist": "^1.3.3",
    "cordova-sqlite-storage": "^2.6.0",
    "deepmerge": "^1.5.1",
    "ionic-angular": "^3.9.0",
    "ionic-plugin-deeplinks": "^1.0.17",
    "ionic-plugin-keyboard": "^2.2.1",
    "ionicons": "3.0.0",
    "me.tonny.cordova.plugins.multidex": "https://github.com/jwall149/cordova-multidex",
    "moment": "^2.20.1",
    "ng2-validation": "^4.2.0",
    "rxjs": "^5.4.3",
    "stage": "1.0.0",
    "sw-toolbox": "3.4.0",
    "zone.js": "^0.8.17"
  },
  "devDependencies": {
    "@ionic/app-scripts": "3.2.0",
    "@types/node": "^10.12.0",
    "@types/cordova": "0.0.34",
    "cross-env": "^5.0.5",
    "typescript": "^2.4.2",
    "webpack-merge": "^4.1.0",
    "ws": "3.3.2"
  },

Answer 1

您可以使用currying函数执行此操作。

首先，在类中设置函数，以将ID作为参数，并返回将事件作为参数的函数：

editQuestion = id => e => {
  console.log(id);
  console.log(e);
}

然后您可以这样称呼它：

 <Input 
  id={i} 
  key={i} 
  placeholder={`Question ${i}`} 
  onChangeText={this.editQuestion(i)}
 />

如果您有兴趣了解更多信息，请参加HackerNoon a good article on this。

React Native如何通过onChangeText传递道具

1 个答案: