KeyboardAvoidingViewµÄʹÓÃ

      <View style = {commonStyle.safeView}>
        <NavigationBarView onPressMenu = {this.onPressMenu.bind(this)} />
         <KeyboardAvoidingView behavior="padding"style={styles.container} keyboardVerticalOffset = {50}>
        <ScrollView style = {styles.sv} showsVerticalScrollIndicator = {false}>
          <View  style = {styles.main}>
              <View style = {styles.view_input} >
              <TextInput style = {{flex: 1, backgroundColor: 'white'}} 
              placeHolder = "ÊäÈë"
              onChangeText = {(text) => this.setToken(text) }
              />
              </View>
              <View style = {styles.view_input} >
              </View>
              <View style = {styles.view_input} >
              </View>
              <View style = {styles.view_input} >
              </View>
              <View style = {styles.view_input} >
              </View>


              <View style = {styles.view_input} >
              </View>
             
              <TouchableOpacity  style = {styles.touchableOpacity} onPress = {this.onPressSubmit.bind(this)}>
              <Text>submit</Text>
               </TouchableOpacity>
               </View > 
               </ScrollView>
                </KeyboardAvoidingView>


                </View>

keyboardVerticalOffsetÊôÐÔ¿ÉÒÔÐÞÕý½çÃæÉÏÒƵÄÆ«²îÖµ¡£

export default StyleSheet.create({  
    main: {  
        flex: 1,  
        alignItems: 'center',
        backgroundColor: 'gray',
    },  
    sv: {
      
    },
     view_input: {
      flex: 1,
      alignSelf: 'stretch',
      flexDirection: 'row',
      margin: 10,
      height: 40,
      borderWidth: 1,
      borderColor: 'yellow',
      backgroundColor: 'red',
      margin: 5,
    },
    touchableOpacity: {
      width: 200,
      height: 50,
      flex: 1,
      backgroundColor: 'blue',
      alignItems: 'center',
      justifyContent: 'center',
      marginBottom: 5,
    },
    container: {
    flex: 1,
    backgroundColor: 'gray',
    justifyContent: 'center',//
  },
});