Using onChangeText and onFocus to alter style of a text block-CodePudding

Refering to the code below, how can I write it so that when onFocus and onChangeText is called, the value of marginTop changes from 3 to 5?

       <Block>
          <Text marginTop={3}>TEXT</Text>
          <Block>
            <Input
              keyboardType="phone-pad"
              placeholder="Phone number"
              defaultValue={details?.phone}
              onChangeText={(value) => onChange({ phone: value })}
              onFocus?
            />
          </Block>
        </Block>

Any hint would be greatly appreciated. Thanks in advance.

CodePudding user response：

const [move, setMove] = useState(false)
<Block>
  <Text marginTop={3}>TEXT</Text>
  <Block>
    <Input
      keyboardType="phone-pad"
      placeholder="Phone number"
      defaultValue={details?.phone}
      onChangeText={(value) => setMove(true)
      style={move && /* do something*/}
      onFocus?
    />
  </Block>
</Block>

CodePudding user response：

margin changes when either onChangeText or onFocus is called

const [changeMargin, setChangeMargin] = useState(false)  ;
<Block>
              <Text marginTop={changeMargin ? 5: 3}>TEXT</Text>
              <Block>
                <Input
                  keyboardType="phone-pad"
                  placeholder="Phone number"
                  defaultValue={details?.phone}
                  onChangeText={(value) => {setChangeMargin(true) ;onChange({ phone: value })}}
                  onFocus={()=>{setChangeMargin(true)}}
                />
              </Block>
            </Block>