如何在 React Native 中添加按钮? [英] How to add a button in React Native?

问题描述

我对整个无 CSS"的事情感到困惑，但我明白为什么它是有益的.我想要做的就是在屏幕中间放置一个按钮，但我还不明白 React 中的样式是如何工作的.这是我的代码:

I´m confused with this whole "no CSS" thing, but I understand why it's beneficial. All I want to do is place a button in the middle of the screen but I don't understand how styling works in React yet. This is my code:

var tapSpeed = React.createClass({
  render: function() {
    return (
      <View style={styles.container}>
        <Text style={styles.welcome}>
          Tap me as fast as you can!
        </Text>
        <View style={styles.button}>
        !
        </View>
      </View>
    );
  }
});

var styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#FFCCCC'
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10
  },
  button: {
    textAlign: 'center',
    color: '#ffffff',
    marginBottom: 7,
    border: 1px solid blue,
    borderRadius: 2px
  }
});

推荐答案

更新: 使用内置的 按钮组件.

已弃用:

将您的视图包装到 TouchableHighlight(适用于 iOS 和 TouchableNativeFeedback 适用于 Android.

Wrap your View into TouchableHighlight for iOS and TouchableNativeFeedback for Android.

var {
  Platform,
  TouchableHighlight,
  TouchableNativeFeedback 
} = React;

var tapSpeed = React.createClass({
  buttonClicked: function() {
    console.log('button clicked');
  },
  render: function() {
    var TouchableElement = TouchableHighlight;
    if (Platform.OS === 'android') {
     TouchableElement = TouchableNativeFeedback;
    }
    return (
    <View style={styles.container}>
      <Text style={styles.welcome}>
        Tap me as fast as you can!
      </Text>
      <TouchableElement
        style={styles.button}
        onPress={this.buttonClicked.bind(this)}>
        <View>
          <Text style={styles.buttonText}>Button!</Text>
        </View>
      </TouchableElement>        
    </View>
    );
  }
});       

这篇关于如何在 React Native 中添加按钮?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！