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Full screen experience - Content scroll underneath transparent status bar #49

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Full screen experience - Content scroll underneath transparent status…
gmarty Jan 31, 2017
a958125
Add a padding on top of the 1st item
gmarty Feb 1, 2017
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9 changes: 4 additions & 5 deletions js/App.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@ import {
View,
StatusBar,
StyleSheet,
Platform,
AppState,
} from 'react-native';

Expand Down Expand Up @@ -121,7 +120,7 @@ export class App extends Component {
<View style={styles.container}>
<StatusBar
translucent={true}
backgroundColor="rgba(0, 0, 0, 0.2)"
backgroundColor="transparent"
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@wilsonpage wilsonpage Feb 1, 2017

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Can we keep a bit of background color so that if status-bar icons are over a white background (in our app) they are still visible?

barStyle="light-content"
/>
<Navigator
Expand All @@ -136,9 +135,10 @@ export class App extends Component {
renderScene({ id, data }, navigator) {
switch (id) {
case 'item': return <Item itemId={data.itemId} navigator={navigator}/>;
default:
var Component = this.routes[id].component;
default: {
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@arcturus arcturus Jan 31, 2017 •
edited
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Are the curly brackets needed? I'm just curious.

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@gmarty gmarty Feb 1, 2017 •
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Yes, it's to create a new scope to allow the use of const.

const Component = this.routes[id].component;
return <Component navigator={navigator}/>;
}
}
}
}
Expand All @@ -155,7 +155,6 @@ const styles = StyleSheet.create({

scene: {
backgroundColor: '#333',
paddingTop: Platform.OS === 'ios' ? 20 : 24,
},
});

Expand Down
6 changes: 5 additions & 1 deletion js/components/Header.js
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Expand Up @@ -5,6 +5,8 @@ import {
Text,
StyleSheet,
TouchableOpacity,
Platform,
StatusBar,
} from 'react-native';

export default class Header extends Component {
Expand Down Expand Up @@ -81,11 +83,13 @@ Header.propTypes = {
navigator: PropTypes.object,
};

Header.HEIGHT = 54;
Header.STATUS_BAR_HEIGHT = Platform.OS === 'ios' ? 20 : StatusBar.currentHeight;
Header.HEIGHT = 54 + Header.STATUS_BAR_HEIGHT;

const styles = StyleSheet.create({
header: {
backgroundColor: '#333',
paddingTop: Header.STATUS_BAR_HEIGHT,
height: Header.HEIGHT,
flexDirection: 'row',
alignItems: 'center',
Expand Down
3 changes: 1 addition & 2 deletions js/components/ListItem.js
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Expand Up @@ -114,8 +114,7 @@ const styles = StyleSheet.create({

image: {
flex: 1,
paddingVertical: 10,
paddingHorizontal: 12,
padding: 12,
width: null,
height: null,
resizeMode: 'cover',
Expand Down
33 changes: 27 additions & 6 deletions js/scenes/Home.js
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Expand Up @@ -31,6 +31,7 @@ export class Home extends Component {
// never bind functions in render(), it
// messes with react's diffing logic
this.onSettingsPress = this.onSettingsPress.bind(this);
this.renderHeader = this.renderHeader.bind(this);
this.renderRow = this.renderRow.bind(this);
this.onPanEnd = this.onPanEnd.bind(this);
this.onScroll = this.onScroll.bind(this);
Expand All @@ -46,20 +47,20 @@ export class Home extends Component {
// create a clamped property that we can
// use for translating the list view
this.translateY = this.state.listY.interpolate({
inputRange: [0, Header.HEIGHT],
outputRange: [0, Header.HEIGHT],
inputRange: [0, Header.HEIGHT - Header.STATUS_BAR_HEIGHT],
outputRange: [0, Header.HEIGHT - Header.STATUS_BAR_HEIGHT],
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@wilsonpage wilsonpage Feb 1, 2017

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Can you do this calculation once?

const MAX_Y = Header.HEIGHT - Header.STATUS_BAR_HEIGHT;

extrapolate: 'clamp',
});

// fades the header in/out in sync with list position
this.opacity = this.translateY.interpolate({
inputRange: [0, Header.HEIGHT],
inputRange: [0, Header.HEIGHT - Header.STATUS_BAR_HEIGHT],
outputRange: [0, 1],
});

// scales the header in/out in sync with list position
this.scale = this.translateY.interpolate({
inputRange: [0, Header.HEIGHT],
inputRange: [0, Header.HEIGHT - Header.STATUS_BAR_HEIGHT],
outputRange: [0.95, 1],
});

Expand Down Expand Up @@ -364,7 +365,10 @@ export class Home extends Component {
* @param {Number} y
*/
clamp(y) {
if (y > Header.HEIGHT) return { value: Header.HEIGHT, offset: y - Header.HEIGHT };
if (y > Header.HEIGHT) return {
value: Header.HEIGHT,
offset: y - Header.HEIGHT,
};
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@wilsonpage wilsonpage Feb 1, 2017

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This is really funky syntax, can you find an alternative :-/

else if (y < 0) return { value: 0, offset: y };
else return { value: y, offset: 0 };
}
Expand All @@ -391,7 +395,8 @@ export class Home extends Component {
title="Home"
action="Settings"
navigator={this.navigator}
onActionPress={this.onSettingsPress}/>
onActionPress={this.onSettingsPress}
style={styles.header}/>
</Animated.View>

<Animated.View
Expand Down Expand Up @@ -427,6 +432,7 @@ export class Home extends Component {
<ListView
ref="list"
dataSource={this.dataSource}
renderHeader={this.renderHeader}
renderRow={this.renderRow}
onScroll={this.onScroll}
scrollEventThrottle={16}
Expand All @@ -436,6 +442,12 @@ export class Home extends Component {
);
}

renderHeader() {
return (
<View style={styles.firstRow}/>
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@wilsonpage wilsonpage Feb 1, 2017

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This element overhangs the header content and blocks the header buttons. 'Settings' button is difficult to press.

);
}

renderRow({ value: { id, imageUri, createdByUser, timeCreated } }) {
const publisherImageUri = createdByUser.imageUri;
const publisherName = createdByUser.name;
Expand Down Expand Up @@ -483,6 +495,15 @@ const styles = StyleSheet.create({
flex: 1,
},

firstRow: {
height: Header.STATUS_BAR_HEIGHT,
},

header: {
height: 54,
marginTop: Header.STATUS_BAR_HEIGHT / 2,
},

listContainer: {
flex: 1,
position: 'absolute',
Expand Down