android - 当虚拟键盘出现在 native react 中时如何自动向上滚动屏幕(在android上)

Question

虚拟键盘覆盖了文本输入，我看不到我在输入什么。如何避免这种情况？
(我尝试使用 KeyboardAwareScrollView 但它仍然涵盖文本输入)。
我遇到的另一个问题是关于我的样式的错误。

  render() {
    return (
      <KeyboardAwareScrollView>
      <View style={styles.container} >
         <TextInput
          style={styles.input}
          underlineColorAndroid="transparent"
          placeholder="username"
          placeholderTextColor="#00bcd4"
          autoCapitalize="none"
          secureTextEntry={true}
          onChangeText={username => this.setState({ username })}  

          />
          <View style={styles.btnContainer}>     
         <TouchableOpacity style={styles.userBtn}  onPress={() => this.Login(this.state.email, this.state.password)}>
                   <Text style={styles.btnTxt}>Login</Text>
         </TouchableOpacity>

        </View>
      </View>
      </KeyboardAwareScrollView>

与 KeyboardAvoidingView 也是一样的:

  render() {
    return (
      // <View style={styles.container} >
         <KeyboardAvoidingView behavior="padding" style={styles.container}>
         <Text style={styles.heading} >Welcome to SelfCare !</Text>
          <Image
          style={{width: 200, height: 200, marginBottom: 40}}
          source={require('./src/images/icon.png')}
          />
         <TextInput
          style={styles.input}
          underlineColorAndroid="transparent"
          placeholder="Email"
          placeholderTextColor="#00bcd4"
          autoCapitalize="none"
          onChangeText={email => this.setState({ email })}  
             />
         <TextInput
          style={styles.input}
          underlineColorAndroid="transparent"
          placeholder="Password"
          placeholderTextColor="#00bcd4"
          autoCapitalize="none"
          secureTextEntry={true}
          onChangeText={password => this.setState({ password })}  

          />
          <View style={styles.btnContainer}>     
         <TouchableOpacity style={styles.userBtn}  onPress={() => this.Login(this.state.email, this.state.password)}>
                   <Text style={styles.btnTxt}>Login</Text>
         </TouchableOpacity>
         <TouchableOpacity style={styles.userBtn}  onPress={() => this.SignUp(this.state.email, this.state.password)}>
                   <Text style={styles.btnTxt}>Sign Up</Text>
         </TouchableOpacity>         
        </View>
        </KeyboardAvoidingView>
      // </View>
    );
  }
}

Answer 1

如果你想让屏幕向上，你可以使用 <KeyboardAvoidingView> 而不是 <KeyboardAwareScrollView>除非您希望用户能够在键盘打开时滚动屏幕，否则它更容易实现并且执行相同的工作。behavior='padding' << 这个 Prop 是针对画面如何行动的。它还采用 [height, position] 作为值。

<View style={styles.container}>
   <KeyboardAvoidingView behavior="padding">

         ... Your UI ...

   </KeyboardAvoidingView>
</View>

或简写，您可以替换 <View>与 <KeyboardAvoidingView>像这样:

<KeyboardAvoidingView behavior="padding" style={styles.container}>

         ... Your UI ...

</KeyboardAvoidingView>