Re-license and rename UIExplorer integration test app as RNTester

Reviewed By: yungsters

Differential Revision: D4950085

fbshipit-source-id: 44574b5d0ef0d2ad5dfc714309b18dc69cbad9ff

RNTester/js/AsyncStorageExample.js

@@ -0,0 +1,114 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @flow
+ * @providesModule AsyncStorageExample
+ */
+'use strict';
+
+var React = require('react');
+var ReactNative = require('react-native');
+var {
+  AsyncStorage,
+  PickerIOS,
+  Text,
+  View
+} = ReactNative;
+var PickerItemIOS = PickerIOS.Item;
+
+var STORAGE_KEY = '@AsyncStorageExample:key';
+var COLORS = ['red', 'orange', 'yellow', 'green', 'blue'];
+
+class BasicStorageExample extends React.Component {
+  state = {
+    selectedValue: COLORS[0],
+    messages: [],
+  };
+
+  componentDidMount() {
+    this._loadInitialState().done();
+  }
+
+  _loadInitialState = async () => {
+    try {
+      var value = await AsyncStorage.getItem(STORAGE_KEY);
+      if (value !== null){
+        this.setState({selectedValue: value});
+        this._appendMessage('Recovered selection from disk: ' + value);
+      } else {
+        this._appendMessage('Initialized with no selection on disk.');
+      }
+    } catch (error) {
+      this._appendMessage('AsyncStorage error: ' + error.message);
+    }
+  };
+
+  render() {
+    var color = this.state.selectedValue;
+    return (
+      <View>
+        <PickerIOS
+          selectedValue={color}
+          onValueChange={this._onValueChange}>
+          {COLORS.map((value) => (
+            <PickerItemIOS
+              key={value}
+              value={value}
+              label={value}
+            />
+          ))}
+        </PickerIOS>
+        <Text>
+          {'Selected: '}
+          <Text style={{color}}>
+            {this.state.selectedValue}
+          </Text>
+        </Text>
+        <Text>{' '}</Text>
+        <Text onPress={this._removeStorage}>
+          Press here to remove from storage.
+        </Text>
+        <Text>{' '}</Text>
+        <Text>Messages:</Text>
+        {this.state.messages.map((m) => <Text key={m}>{m}</Text>)}
+      </View>
+    );
+  }
+
+  _onValueChange = async (selectedValue) => {
+    this.setState({selectedValue});
+    try {
+      await AsyncStorage.setItem(STORAGE_KEY, selectedValue);
+      this._appendMessage('Saved selection to disk: ' + selectedValue);
+    } catch (error) {
+      this._appendMessage('AsyncStorage error: ' + error.message);
+    }
+  };
+
+  _removeStorage = async () => {
+    try {
+      await AsyncStorage.removeItem(STORAGE_KEY);
+      this._appendMessage('Selection removed from disk.');
+    } catch (error) {
+      this._appendMessage('AsyncStorage error: ' + error.message);
+    }
+  };
+
+  _appendMessage = (message) => {
+    this.setState({messages: this.state.messages.concat(message)});
+  };
+}
+
+exports.title = 'AsyncStorage';
+exports.description = 'Asynchronous local disk storage.';
+exports.examples = [
+  {
+    title: 'Basics - getItem, setItem, removeItem',
+    render(): React.Element<any> { return <BasicStorageExample />; }
+  },
+];