Reorganize examples

2026-05-27 16:22:20 +00:00 · 2016-08-19 14:03:55 -07:00
parent 011affb110
commit 88b184d540
19 changed files with 12 additions and 12 deletions
@@ -0,0 +1,117 @@
+'use strict';
+
+import { storiesOf, action } from '@kadira/storybook';
+
+var React = require('react');
+var ReactNative = require('react-native');
+var {
+  PanResponder,
+  StyleSheet,
+  View
+} = ReactNative;
+
+var CIRCLE_SIZE = 80;
+
+var PanResponderExample = React.createClass({
+  _panResponder: {},
+  _previousLeft: 0,
+  _previousTop: 0,
+  _circleStyles: {},
+  circle: (null : ?{ setNativeProps(props: Object): void }),
+
+  componentWillMount: function() {
+    this._panResponder = PanResponder.create({
+      onStartShouldSetPanResponder: this._handleStartShouldSetPanResponder,
+      onMoveShouldSetPanResponder: this._handleMoveShouldSetPanResponder,
+      onPanResponderGrant: this._handlePanResponderGrant,
+      onPanResponderMove: this._handlePanResponderMove,
+      onPanResponderRelease: this._handlePanResponderEnd,
+      onPanResponderTerminate: this._handlePanResponderEnd,
+    });
+    this._previousLeft = 20;
+    this._previousTop = 84;
+    this._circleStyles = {
+      style: {
+        left: this._previousLeft,
+        top: this._previousTop,
+        backgroundColor: 'green',
+      }
+    };
+  },
+
+  componentDidMount: function() {
+    this._updateNativeStyles();
+  },
+
+  render: function() {
+    return (
+      <View
+        style={styles.container}>
+        <View
+          ref={(circle) => {
+            this.circle = circle;
+          }}
+          style={styles.circle}
+          {...this._panResponder.panHandlers}
+        />
+      </View>
+    );
+  },
+
+  _highlight: function() {
+    this._circleStyles.style.backgroundColor = 'blue';
+    this._updateNativeStyles();
+  },
+
+  _unHighlight: function() {
+    this._circleStyles.style.backgroundColor = 'green';
+    this._updateNativeStyles();
+  },
+
+  _updateNativeStyles: function() {
+    this.circle && this.circle.setNativeProps(this._circleStyles);
+  },
+
+  _handleStartShouldSetPanResponder: function(e: Object, gestureState: Object): boolean {
+    // Should we become active when the user presses down on the circle?
+    return true;
+  },
+
+  _handleMoveShouldSetPanResponder: function(e: Object, gestureState: Object): boolean {
+    // Should we become active when the user moves a touch over the circle?
+    return false;
+  },
+
+  _handlePanResponderGrant: function(e: Object, gestureState: Object) {
+    this._highlight();
+  },
+  _handlePanResponderMove: function(e: Object, gestureState: Object) {
+    this._circleStyles.style.left = this._previousLeft + gestureState.dx;
+    this._circleStyles.style.top = this._previousTop + gestureState.dy;
+    this._updateNativeStyles();
+  },
+  _handlePanResponderEnd: function(e: Object, gestureState: Object) {
+    this._unHighlight();
+    this._previousLeft += gestureState.dx;
+    this._previousTop += gestureState.dy;
+  },
+});
+
+var styles = StyleSheet.create({
+  circle: {
+    width: CIRCLE_SIZE,
+    height: CIRCLE_SIZE,
+    borderRadius: CIRCLE_SIZE / 2,
+    position: 'absolute',
+    left: 0,
+    top: 0,
+  },
+  container: {
+    flex: 1,
+    paddingTop: 64,
+  },
+});
+
+
+storiesOf('api: PanResponder', module)
+  .add('example', () => <PanResponderExample />)