89 lines
2.1 KiB
JavaScript
89 lines
2.1 KiB
JavaScript
import React, { Component } from 'react'
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import { View, PanResponder, GestureResponderEvent } from 'react-native'
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import Svg, {
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Circle,
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Ellipse,
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G,
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LinearGradient,
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RadialGradient,
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Line,
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Path,
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Polygon,
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Polyline,
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Rect,
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Symbol,
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Use,
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Defs,
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Stop
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} from 'react-native-svg';
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export default class Foo extends Component {
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panResponder = null;
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constructor(props) {
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super(props)
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this.state = { x: 200, y: 200, initX: 0, initY: 0 }
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this.panResponder = PanResponder.create({
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onStartShouldSetPanResponder: (evt, gestureState) => true,
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onStartShouldSetPanResponderCapture: (evt, gestureState) => true,
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onMoveShouldSetPanResponder: (evt, gestureState) => true,
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onMoveShouldSetPanResponderCapture: (evt, gestureState) => true,
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onPanResponderGrant: () => {
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},
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onPanResponderStart: (evt, gestureState) => {
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console.log("start", gestureState);
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this.setState({ initX: this.state.x, initY: this.state.y });
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},
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onPanResponderMove: (evt, gs) => {
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//console.log(gs.dx + ' ' + gs.dy)
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const newX = this.state.initX + gs.dx;
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const newY = this.state.initY + gs.dy;
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this.setState({ x: newX, y: newY });
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},
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onPanResponderTerminationRequest: (evt, gestureState) => true,
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onPanResponderRelease: (evt, gs) => {
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console.log('Release ' + gs.dx + ' ' + gs.dy);
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//this.setState({ x: this.state.x, y: 0 });
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},
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onShouldBlockNativeResponder: (evt, gestureState) => {
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// Returns whether this component should block native components from becoming
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// the JS responder. Returns true by default. Is currently only supported on
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// android.
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return true;
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},
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})
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}
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componentDidMount() {
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}
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render() {
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return (
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<Svg height="500" width="500">
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<Circle
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{...this.panResponder.panHandlers}
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x={this.state.x}
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y={this.state.y}
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cx="50"
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cy="50"
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r="20"
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stroke="blue"
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strokeWidth="3.5"
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fill="white" />
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</Svg>
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)
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}
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}
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