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https://github.com/zhigang1992/react-native.git
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Unforked RKWebView
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Nick Lockwood
264
Examples/UIExplorer/WebViewExample.js
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264
Examples/UIExplorer/WebViewExample.js
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/**
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* Copyright 2004-present Facebook. All Rights Reserved.
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*/
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'use strict';
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var React = require('react-native');
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var StyleSheet = require('StyleSheet');
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var {
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ActivityIndicatorIOS,
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StyleSheet,
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Text,
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TextInput,
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TouchableOpacity,
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View,
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WebView
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} = React;
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var HEADER = '#3b5998';
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var BGWASH = 'rgba(255,255,255,0.8)';
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var DISABLED_WASH = 'rgba(255,255,255,0.25)';
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var TEXT_INPUT_REF = 'urlInput';
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var WEBVIEW_REF = 'webview';
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var DEFAULT_URL = 'https://m.facebook.com';
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var WebViewExample = React.createClass({
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getInitialState: function() {
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return {
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url: DEFAULT_URL,
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status: 'No Page Loaded',
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backButtonEnabled: false,
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forwardButtonEnabled: false,
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loading: true,
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};
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},
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handleTextInputChange: function(event) {
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this.inputText = event.nativeEvent.text;
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},
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render: function() {
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this.inputText = this.state.url;
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return (
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<View style={[styles.container]}>
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<View style={[styles.addressBarRow]}>
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<TouchableOpacity onPress={this.goBack}>
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<View style={this.state.backButtonEnabled ? styles.navButton : styles.disabledButton}>
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<Text>
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{'<'}
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</Text>
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</View>
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</TouchableOpacity>
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<TouchableOpacity onPress={this.goForward}>
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<View style={this.state.forwardButtonEnabled ? styles.navButton : styles.disabledButton}>
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<Text>
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{'>'}
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</Text>
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</View>
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</TouchableOpacity>
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<TextInput
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ref={TEXT_INPUT_REF}
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autoCapitalize="none"
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value={this.state.url}
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onSubmitEditing={this.onSubmitEditing}
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onChange={this.handleTextInputChange}
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clearButtonMode="while-editing"
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style={styles.addressBarTextInput}
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/>
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<TouchableOpacity onPress={this.pressGoButton}>
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<View style={styles.goButton}>
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<Text>
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Go!
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</Text>
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</View>
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</TouchableOpacity>
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</View>
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<WebView
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ref={WEBVIEW_REF}
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automaticallyAdjustContentInsets={false}
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style={styles.webView}
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url={this.state.url}
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renderErrorView={this.renderErrorView}
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renderLoadingView={this.renderLoadingView}
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onNavigationStateChange={this.onNavigationStateChange}
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startInLoadingState={true}
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/>
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<View style={styles.statusBar}>
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<Text style={styles.statusBarText}>{this.state.status}</Text>
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</View>
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</View>
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);
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},
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goBack: function() {
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this.refs[WEBVIEW_REF].goBack();
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},
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goForward: function() {
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this.refs[WEBVIEW_REF].goForward();
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},
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reload: function() {
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this.refs[WEBVIEW_REF].reload();
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},
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onNavigationStateChange: function(navState) {
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this.setState({
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backButtonEnabled: navState.canGoBack,
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forwardButtonEnabled: navState.canGoForward,
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url: navState.url,
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status: navState.title,
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loading: navState.loading,
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});
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},
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renderErrorView: function(errorDomain, errorCode, errorDesc) {
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return (
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<View style={styles.errorContainer}>
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<Text style={styles.errorTextTitle}>
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Error loading page
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</Text>
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<Text style={styles.errorText}>
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{'Domain: ' + errorDomain}
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</Text>
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<Text style={styles.errorText}>
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{'Error Code: ' + errorCode}
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</Text>
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<Text style={styles.errorText}>
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{'Description: ' + errorDesc}
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</Text>
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</View>
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);
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},
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renderLoadingView: function() {
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return (
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<View style={styles.loadingView}>
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<ActivityIndicatorIOS />
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</View>
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);
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},
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onSubmitEditing: function(event) {
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this.pressGoButton();
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},
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pressGoButton: function() {
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var url = this.inputText.toLowerCase();
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if (url === this.state.url) {
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this.reload();
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} else {
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this.setState({
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url: url,
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});
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}
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// dismiss keyoard
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this.refs[TEXT_INPUT_REF].blur();
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},
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});
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var styles = StyleSheet.create({
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container: {
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flex: 1,
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backgroundColor: HEADER,
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},
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addressBarRow: {
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flexDirection: 'row',
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padding: 8,
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},
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webView: {
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backgroundColor: BGWASH,
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height: 350,
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},
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addressBarTextInput: {
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backgroundColor: BGWASH,
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borderColor: 'transparent',
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borderRadius: 3,
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borderWidth: 1,
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height: 24,
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paddingLeft: 10,
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paddingTop: 3,
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paddingBottom: 3,
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flex: 1,
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fontSize: 14,
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},
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navButton: {
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width: 20,
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padding: 3,
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marginRight: 3,
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alignItems: 'center',
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justifyContent: 'center',
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backgroundColor: BGWASH,
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borderColor: 'transparent',
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borderRadius: 3,
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},
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disabledButton: {
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width: 20,
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padding: 3,
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marginRight: 3,
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alignItems: 'center',
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justifyContent: 'center',
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backgroundColor: DISABLED_WASH,
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borderColor: 'transparent',
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borderRadius: 3,
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},
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goButton: {
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height: 24,
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padding: 3,
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marginLeft: 8,
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alignItems: 'center',
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backgroundColor: BGWASH,
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borderColor: 'transparent',
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borderRadius: 3,
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alignSelf: 'stretch',
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},
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loadingView: {
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backgroundColor: BGWASH,
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flex: 1,
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justifyContent: 'center',
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alignItems: 'center',
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},
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errorContainer: {
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flex: 1,
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justifyContent: 'center',
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alignItems: 'center',
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backgroundColor: BGWASH,
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},
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errorTextTitle: {
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fontSize: 15,
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fontWeight: 'bold',
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marginBottom: 10,
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},
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errorText: {
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fontSize: 14,
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textAlign: 'center',
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marginBottom: 2,
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},
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statusBar: {
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flexDirection: 'row',
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alignItems: 'center',
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paddingLeft: 5,
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height: 22,
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},
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statusBarText: {
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color: 'white',
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fontSize: 13,
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},
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spinner: {
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width: 20,
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marginRight: 6,
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},
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});
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exports.title = '<WebView>';
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exports.description = 'Base component to display web content';
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exports.examples = [
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{
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title: 'WebView',
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render() { return <WebViewExample />; }
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}
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];
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