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Back button title #436

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merged 2 commits into from
Mar 30, 2016
Merged

Back button title #436

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35cbce0
added possibility to specify backbutton text
philipshurpik Mar 30, 2016
f1cf55c
added back button title docs
philipshurpik Mar 30, 2016
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2 changes: 2 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -114,6 +114,8 @@ class App extends React.Component {
| renderLeftButton | Closure | | optional closure to render the left title / buttons element |
| drawerImage | Image | `'./menu_burger.png'` | Simple way to override the drawerImage in the navBar |
| backButtonImage | Image | `'./back_chevron.png'` | Simple way to override the back button in the navBar |
| backTitle | string | | optional string to display with back button |
| backButtonTextStyle | Text style | | optional style override for the back title element |
| renderBackButton | Closure | | optional closure to render back text or button if this route happens to be the previous route |
| leftButtonStyle | View style | | optional style override for the container of left title / buttons |
| leftButtonTextStyle | Text style | | optional style override for the left title element |
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57 changes: 31 additions & 26 deletions src/NavBar.js
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Expand Up @@ -78,33 +78,31 @@ export default class NavBar extends React.Component {
}

_renderBackButton() {
let buttonImage;

if (this.props.navigationState.index === 0) {
if(!!this.context.drawer && typeof this.context.drawer.toggle === 'function'){

buttonImage = this.props.navigationState.drawerImage || require('./menu_burger.png');
const drawer = this.context.drawer;
const state = this.props.navigationState;
const childState = state.children[state.index];
let buttonImage = state.backButtonImage || require('./back_chevron.png');
let onPress = Actions.pop;

return (
<TouchableOpacity style={[styles.backButton, this.props.navigationState.leftButtonStyle]} onPress={() => {
var drawer = this.context.drawer;
drawer.toggle();
}}>
<Image source={buttonImage} style={[styles.backButtonImage, this.props.navigationState.barButtonIconStyle]}/>
</TouchableOpacity>
);
}else{
return null;
if (state.index === 0) {
if (!!drawer && typeof drawer.toggle === 'function') {
buttonImage = state.drawerImage || require('./menu_burger.png');
onPress = drawer.toggle;
} else {
return null;
}
}
}

buttonImage = this.props.navigationState.backButtonImage || require('./back_chevron.png');
let text = childState.backTitle ? <Text style={[styles.barBackButtonText, childState.backButtonTextStyle]}>
{childState.backTitle}
</Text> : null;

return (
<TouchableOpacity style={[styles.backButton, this.props.navigationState.leftButtonStyle]} onPress={Actions.pop}>
<Image source={buttonImage} style={[styles.backButtonImage, this.props.navigationState.barButtonIconStyle]}/>
</TouchableOpacity>
);
return (
<TouchableOpacity style={[styles.backButton, state.leftButtonStyle]} onPress={onPress}>
<Image source={buttonImage} style={[styles.backButtonImage, state.barButtonIconStyle]}/>
{text}
</TouchableOpacity>
);
}

_renderRightButton() {
Expand Down Expand Up @@ -202,12 +200,13 @@ const styles = StyleSheet.create({
position: 'absolute',
},
backButton: {
width: 29,
width: 100,
height: 37,
position: 'absolute',
bottom: 4,
left: 2,
padding: 8,
flexDirection: 'row',
},
rightButton: {
width: 100,
Expand All @@ -227,12 +226,18 @@ const styles = StyleSheet.create({
},
barRightButtonText: {
color: 'rgb(0, 122, 255)',
textAlign:'right',
textAlign: 'right',
fontSize: 17,
},
barBackButtonText: {
color: 'rgb(0, 122, 255)',
textAlign: 'left',
fontSize: 17,
paddingLeft: 6,
},
barLeftButtonText: {
color: 'rgb(0, 122, 255)',
textAlign:'left',
textAlign: 'left',
fontSize: 17,
},
backButtonImage: {
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