[英]Can I add extra callback to this.props.children on React Native?
假設this.props.children [0]是來自父級的TouchableOpacity。
我想在這里添加額外的回調。 我想要什么? 我找不到任何解決方案。
謝謝。
export default class NewClassXXX extends React.Component{
render()
{
newchildren = React.Children.map(this.props.children, (child) => {
//child is TouchableOpacity class in my code ***
//I want to add LongPress callback by coding HERE. (like below)
child.onLongPress = () => console.log('SUCESSS!!!'); //this code does not work.
return child;
}
return {newchildren}
}
使用React.cloneElement
方法來實現這一點
export default class NewClassXXX extends React.Component{
render()
{
newchildren = React.Children.map(this.props.children, (child) => {
return React.cloneElement(child, {onLongPress: () => console.log('SUCESSS!!!')})
}
return {newchildren}
}
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