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我试图通过使用React Native PanResponder来实现简单的拖动功能。我看了this tutorial,但我做了一个更简单的事情,它只是在拖动时改变一个状态变量。原生反应:this.touchableHandleResponderGrant不是函数
componentWillMount() {
this._panResponder = PanResponder.create({
onMoveShouldSetResponderCapture:() => true,
onMoveShouldSetPanResponderCapture:() => true,
onPanResponderGrant: (e, gestureState) => {
//this.setState({pan: 0});
console.log('grant');
},
onPanResponderMove: (e, gestureState) => {
//this.setState({pan: gestureState.dx});
console.log(gestureState);
},
onPanResponderRelease: (e, {vx, vy}) => {
}
});
console.log('pan init');
}
而在我的渲染功能,我有这样的:
<Text {...this._panResponder.panHandlers}>Drag here</Text>
但只要我平移/拖我得到了错误的Redbox:
this.touchableHandleResponderGrant is not a function
我做了什么错误?
啊...这是惊人的,没有一个有关的线索。现在它完美地工作。非常感谢! :) – Niclas