反应原生视图

Question

你好，我是新来回应本机，我遇到了视图问题。我在输入文本时遇到问题，因为它只显示非常小。当我 删除样式表中的容器所有文本消失，文本输入变大。

这是我的代码

render() {

    return (      
      <View style={styles.container}>
        <Text style={styles.welcome}>
          Welcome to React Native!
        </Text>
        <Text style={styles.instructions}>
          To get started, edit index.android.js
        </Text>

        <Text style={styles.instructions}>
          Double tap R on your keyboard to reload,{'\n'}
          Shake or press menu button for dev menu
        </Text>


<View>
      <View style ={styles.textinput}>
      <TextInput 
                  keyboardType='ascii-capable'
                  placeholder='First Name'
                  value={this.state.firstName}
                  onChangeText={(text) => {this.setState({firstName: text})}}/>

                  <TextInput 
                  keyboardType='ascii-capable'
                  placeholder='Middle Name'
                  value={this.state.middleName}
                  onChangeText={(text) => {this.setState({middleName: text})}}/>

                  <TextInput 
                  keyboardType='ascii-capable'
                  placeholder='Last Name'
                  value={this.state.lastName}
                  onChangeText={(text) => {this.setState({lastName: text})}}/>

                  <TextInput 
                  keyboardType='ascii-capable'
                  placeholder='Email'
                  value={this.state.email}
                  onChangeText={(text) => {this.setState({email: text})}}/>

                  <TextInput 
                  keyboardType='ascii-capable'
                  placeholder='Address'
                  value={this.state.address}
                  onChangeText={(text) => {this.setState({address: text})}}/>
                   </View>

                  <View style={styles.buttonModal}>

                        <Button
                    style={styles.cancelButton} 
                    onPress={this.editUser}
                    title="SAVE"
                    color="#343434"
                    accessibilityLabel="Save user."/>


          </View>
          </View>

    </View>

    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },

  textinput: {
   flex: 0,
  },
   buttonModal: {
      paddingTop: 20,
      flexDirection: 'row',
      justifyContent: 'space-around'
    },
});

Answer 1

删除input$percentInTrain上方的 testidx <- sample(1:nrow(dt), length(1:nrow(dt)*input$percentInTrain)) rvtrain <- dt[testidx,] rvtest <- dt[-testidx,] 并制作

<view>

按钮，尝试逐个评论<View style ={styles.textinput}>。