TextInput在react-native中被隐藏在键盘后面了

Question

我正在用 react native 创建聊天界面，我希望第一部分（显示消息的地方）可以滚动。

聊天界面的 TextInput 应该在屏幕底部，键盘应该在它的后面。

这个界面和WhatsApp的聊天界面很相似。但我无法重新创建该界面。

我也试过 KeyboardAvoidingView 从 react-native 但它不像它那样为我工作。

App.js

import React, { useEffect, useState } from "react";
import {
  ScrollView,
  View,
  Text,
  Alert,
  Dimensions,
  Platform,
  KeyboardAvoidingView,
  TextInput,
  TouchableOpacity,
} from "react-native";

import { Ionicons } from "@expo/vector-icons";

const App = () => {
  const [message, setMessage] = useState([]);

  
  return (
    <View
      style={{
        display: "flex",
        flex: 1,
        justifyContent: "space-evenly",
        alignItems: "center",
        height: Dimensions.get("window").height,
        width: Dimensions.get("window").width,
      }}
    >
      <View
        style={{
          height: Dimensions.get("window").height * 0.8,
          backgroundColor: "lightgrey",
          width: Dimensions.get("window").width,
        }}
      >
        <ScrollView></ScrollView>
      </View>
      <View
        style={{
          height: Dimensions.get("window").height * 0.2,
          width: Dimensions.get("window").width,
          display: "flex",
          flexDirection: "row",
          justifyContent: "space-evenly",
          alignItems: "center",
          padding: 25,
        }}
      >
        <View style={{ flex: 4 }}>
          <TextInput placeholder="Type Message ....." />
        </View>
        <TouchableOpacity>
          <Ionicons name="md-send" size={30} color="#0af" />
        </TouchableOpacity>
      </View>
    </View>
  );
};

export default App;

我已经把我的代码添加到了 博览会小食.

Answer 1

当我在工作中遇到这个问题时，我已经多次遇到这个问题。react-native 项目。我总是发现本地的 KeyboardAvoidingView 模块故障。所以我用另一个包来使它工作。我已经在你的 snack 并能正常使用。

这个包叫做 react-native-keyboard-aware-scroll-view. 它是一个轻量级的包，解压后大小只有10kB。

它有几个有用的道具，你可以用它来调整组件。看看吧 此处.

这里是一个链接到 零食 我用来测试你的代码。

import React, { useEffect, useState } from "react";
import {
  ScrollView,
  View,
  Text,
  Alert,
  Dimensions,
  Platform,
  TextInput,
  TouchableOpacity,
} from "react-native";
import { KeyboardAwareScrollView } from 'react-native-keyboard-aware-scroll-view'


import { Ionicons } from "@expo/vector-icons";

const App = () => {
  const [message, setMessage] = useState([]);


  return (
    <KeyboardAwareScrollView
      style={{
        display: "flex",
        flex: 1,
        justifyContent: "space-evenly",
        alignItems: "center",
        height: Dimensions.get("window").height,
        width: Dimensions.get("window").width,
      }}
    >
      <View
        style={{
          height: Dimensions.get("window").height * 0.8,
          backgroundColor: "lightgrey",
          width: Dimensions.get("window").width,
        }}
      >
        <ScrollView></ScrollView>
      </View>
      <View
        style={{
          height: Dimensions.get("window").height * 0.2,
          width: Dimensions.get("window").width,
          display: "flex",
          flexDirection: "row",
          justifyContent: "space-evenly",
          alignItems: "center",
          padding: 25,
        }}
      >
        <View style={{ flex: 4 }}>
          <TextInput placeholder="Type Message ....." />
        </View>
        <TouchableOpacity>
          <Ionicons name="md-send" size={30} color="#0af" />
        </TouchableOpacity>
      </View>
    </KeyboardAwareScrollView>
  );
};

export default App;