implemented rudimentary media seeker. Still needs some tweaking.

app/src/component/AppNavigator.js

@@ -20,7 +20,8 @@ const discoverStack = StackNavigator({
   File: {
     screen: FilePage,
     navigationOptions: {
-      header: null
+      header: null,
+      drawerLockMode: 'locked-closed'
     }
   }
 }, {

app/src/component/fileItem/view.js

@@ -58,7 +58,7 @@ class FileItem extends React.PureComponent {
             this.props.navigation.navigate('File', { uri: uri });
           }
         }>
-        <FileItemMedia title={title} thumbnail={thumbnail} />
+        <FileItemMedia title={title} thumbnail={thumbnail} resizeMode="cover" />
         <FilePrice uri={uri} style={discoverStyle.filePriceContainer} textStyle={discoverStyle.filePriceText} />
         <Text style={discoverStyle.fileItemName}>{title}</Text>
         {channelName &&

app/src/component/fileItemMedia/view.js

@@ -28,7 +28,7 @@ class FileItemMedia extends React.PureComponent {
 
   render() {
     let style = this.props.style;
-    const { title, thumbnail } = this.props;
+    const { title, thumbnail, resizeMode } = this.props;
     const atStyle = this.state.autoThumbStyle;
 
     if (thumbnail && ((typeof thumbnail) === 'string')) {
@@ -37,7 +37,7 @@ class FileItemMedia extends React.PureComponent {
       }
       
       return (
-        <Image source={{uri: thumbnail}} resizeMode="cover" style={style} />
+        <Image source={{uri: thumbnail}} resizeMode={resizeMode ? resizeMode : "cover"} style={style} />
       );
     }
         

app/src/component/mediaPlayer/index.js

@@ -0,0 +1,7 @@
+import { connect } from 'react-redux';
+import MediaPlayer from './view';
+
+const select = state => ({});
+const perform = dispatch => ({});
+
+export default connect(select, perform)(MediaPlayer);

app/src/component/mediaPlayer/view.js

@@ -0,0 +1,273 @@
+import React from 'react';
+import { Lbry } from 'lbry-redux';
+import { PanResponder, Text, View, ScrollView, TouchableOpacity } from 'react-native';
+import Video from 'react-native-video';
+import Icon from 'react-native-vector-icons/FontAwesome';
+import FileItemMedia from '../fileItemMedia';
+import mediaPlayerStyle from '../../styles/mediaPlayer'; 
+
+class MediaPlayer extends React.PureComponent {
+  static ControlsTimeout = 3000;
+  
+  seekResponder = null;
+  
+  seekerWidth = 0;
+  
+  video = null;
+  
+  state = {
+    rate: 1,
+    volume: 1,
+    muted: false,
+    resizeMode: 'stretch',
+    duration: 0.0,
+    currentTime: 0.0,
+    paused: false,
+    fullscreenMode: false,
+    areControlsVisible: true,
+    controlsTimeout: -1,
+    seekerOffset: 0,
+    seekerPosition: 0,
+    firstPlay: true
+  };
+  
+  formatTime(time) {
+    let str = '';
+    let minutes = 0, hours = 0, seconds = parseInt(time, 10);
+    if (seconds > 60) {
+      minutes = parseInt(seconds / 60, 10);
+      seconds = seconds % 60;
+      
+      if (minutes > 60) {
+        hours = parseInt(minutes / 60, 10);
+        minutes = minutes % 60;
+      }
+      
+      str = (hours > 0 ? this.pad(hours) + ':' : '') + this.pad(minutes) + ':' + this.pad(seconds);
+    } else {
+      str = '00:' + this.pad(seconds);
+    }
+    
+    return str;
+  }
+  
+  pad(value) {
+    if (value < 10) {
+      return '0' + String(value);
+    }
+    
+    return value;
+  }
+  
+  onLoad = (data) => {
+    this.setState({
+      duration: data.duration
+    });
+    if (this.props.onMediaLoaded) {
+      this.props.onMediaLoaded();  
+    }
+  }
+  
+  onProgress = (data) => {
+    this.setState({ currentTime: data.currentTime });
+    
+    if (!this.state.seeking) {
+      this.setSeekerPosition(this.calculateSeekerPosition());
+    }
+    
+    if (this.state.firstPlay) {
+      this.setState({ firstPlay: false });
+      this.hidePlayerControls();
+    }
+  }
+  
+  clearControlsTimeout = () => {
+    if (this.state.controlsTimeout > -1) {
+      clearTimeout(this.state.controlsTimeout)
+    }
+  }
+  
+  showPlayerControls = () => {
+    this.clearControlsTimeout();
+    if (!this.state.areControlsVisible) {
+      this.setState({ areControlsVisible: true });
+    }
+    this.hidePlayerControls();
+  }
+  
+  hidePlayerControls() {
+    const player = this;
+    let timeout = setTimeout(() => {
+      player.setState({ areControlsVisible: false });
+    }, MediaPlayer.ControlsTimeout);
+    player.setState({ controlsTimeout: timeout });
+  }
+  
+  togglePlay = () => {
+    this.showPlayerControls();
+    this.setState({ paused: !this.state.paused });
+  }
+  
+  toggleFullscreenMode = () => {
+    this.showPlayerControls();
+    const { onFullscreenToggled } = this.props;
+    this.setState({ fullscreenMode: !this.state.fullscreenMode }, () => {
+      this.setState({ resizeMode: this.state.fullscreenMode ? 'contain' : 'stretch' });
+      if (onFullscreenToggled) {
+        onFullscreenToggled(this.state.fullscreenMode);
+      }
+    });
+  }
+  
+  onEnd = () => {
+    this.setState({ paused: true });
+    this.video.seek(0);
+  }
+  
+  setSeekerPosition(position = 0) {
+    position = this.checkSeekerPosition(position);
+    this.setState({ seekerPosition: position });
+    if (!this.state.seeking) {
+      this.setState({ seekerOffset: position });
+    }
+  }
+  
+  checkSeekerPosition(val = 0) {
+    if (val < 0) {
+      val = 0;
+    } else if (val >= this.seekerWidth) {
+      return this.seekerWidth;
+    }
+    
+    return val;
+  }
+  
+  seekTo = (time = 0) => {
+    if (time > this.state.duration) {
+      return;
+    }
+    this.video.seek(time);
+    this.setState({ currentTime: time });
+  }
+  
+  initSeeker() {
+    this.seekResponder = PanResponder.create({
+      onStartShouldSetPanResponder: (evt, gestureState) => true,
+      onMoveShouldSetPanResponder: (evt, gestureState) => true,
+      
+      onPanResponderGrant: (evt, gestureState) => {
+        this.clearControlsTimeout();
+        this.setState({ seeking: true });
+      },
+      
+      onPanResponderMove: (evt, gestureState) => {
+        const position = this.state.seekerOffset + gestureState.dx;
+        this.setSeekerPosition(position);
+      },
+      
+      onPanResponderRelease: (evt, gestureState) => {
+        const time = this.getCurrentTimeForSeekerPosition();
+        if (time >= this.state.duration) {
+          this.setState({ paused: true });
+          this.onEnd();
+        } else {
+          this.seekTo(time);
+          this.setState({ seeking: false });
+        }
+        this.hidePlayerControls();
+      }
+    });
+  }
+  
+  getCurrentTimeForSeekerPosition() {
+    return this.state.duration * (this.state.seekerPosition / this.seekerWidth);
+  }
+  
+  calculateSeekerPosition() {
+    return this.seekerWidth * this.getCurrentTimePercentage();
+  }
+  
+  getCurrentTimePercentage() {
+    if (this.state.currentTime > 0) {
+      return parseFloat(this.state.currentTime) / parseFloat(this.state.duration);
+    }
+    return 0;
+  };
+  
+  componentWillMount() {
+    this.initSeeker();
+  }
+  
+  componentWillUnmount() {
+    this.setState({ paused: true, fullscreenMode: false });
+    const { onFullscreenToggled } = this.props;
+    if (onFullscreenToggled) {
+      onFullscreenToggled(false);
+    }
+  }
+  
+  renderPlayerControls() {
+    if (this.state.areControlsVisible) {
+      return (
+        <View style={mediaPlayerStyle.playerControlsContainer}>
+          <TouchableOpacity style={mediaPlayerStyle.playPauseButton}
+            onPress={this.togglePlay}>
+            {this.state.paused && <Icon name="play" size={32} color="#ffffff" />}
+            {!this.state.paused && <Icon name="pause" size={32} color="#ffffff" />}
+          </TouchableOpacity>
+          
+          <TouchableOpacity style={mediaPlayerStyle.toggleFullscreenButton} onPress={this.toggleFullscreenMode}>
+            {this.state.fullscreenMode && <Icon name="compress" size={16} color="#ffffff" />}
+            {!this.state.fullscreenMode && <Icon name="expand" size={16} color="#ffffff" />}
+          </TouchableOpacity>
+          
+          <Text style={mediaPlayerStyle.elapsedDuration}>{this.formatTime(this.state.currentTime)}</Text>
+          <Text style={mediaPlayerStyle.totalDuration}>{this.formatTime(this.state.duration)}</Text>
+        </View>
+      );
+    }
+  
+    return null;
+  }
+
+  render() {
+    const { fileInfo, title, thumbnail, style, fullScreenStyle } = this.props;
+    const flexCompleted = this.getCurrentTimePercentage() * 100;
+    const flexRemaining = (1 - this.getCurrentTimePercentage()) * 100;
+    
+    return (
+      <View style={[style, mediaPlayerStyle.container]}>
+        <Video source={{ uri: 'file:///' + fileInfo.download_path }}
+               ref={(ref: Video) => { this.video = ref }}
+               resizeMode={this.state.resizeMode}
+               playInBackground={true}
+               style={mediaPlayerStyle.player}
+               rate={this.state.rate}
+               volume={this.state.volume}
+               paused={this.state.paused}
+               onLoad={this.onLoad}
+               onProgress={this.onProgress}
+               onEnd={this.onEnd}
+               />
+        
+        <TouchableOpacity style={mediaPlayerStyle.playerControls} onPress={this.showPlayerControls}>
+          {this.renderPlayerControls()}
+        </TouchableOpacity>
+        
+        <View style={mediaPlayerStyle.trackingControls}>
+          <View style={mediaPlayerStyle.progress} onLayout={(evt) => this.seekerWidth = evt.nativeEvent.layout.width}>
+            <View style={[mediaPlayerStyle.innerProgressCompleted, { flex: flexCompleted }]} />
+            <View style={[mediaPlayerStyle.innerProgressRemaining, { flex: flexRemaining }]} />
+          </View>
+        </View>
+        
+        {this.state.areControlsVisible &&
+        <View style={[mediaPlayerStyle.seekerHandle, { left: this.state.seekerPosition }]} { ...this.seekResponder.panHandlers }>
+          <View style={this.state.seeking ? mediaPlayerStyle.bigSeekerCircle : mediaPlayerStyle.seekerCircle} />
+        </View>}
+      </View>
+    );
+  }
+}
+
+export default MediaPlayer;

app/src/page/file/view.js

@@ -1,20 +1,16 @@
 import React from 'react';
 import { Lbry } from 'lbry-redux';
-import { Text, View, ScrollView, TouchableOpacity } from 'react-native';
+import { Text, View, ScrollView, StatusBar, TouchableOpacity, NativeModules } from 'react-native';
-import Video from 'react-native-video';
-import filePageStyle from '../../styles/filePage';
 import FileItemMedia from '../../component/fileItemMedia';
 import FileDownloadButton from '../../component/fileDownloadButton';
+import MediaPlayer from '../../component/mediaPlayer';
+import Video from 'react-native-video';
+import filePageStyle from '../../styles/filePage';
 
 class FilePage extends React.PureComponent {
   state = {
-    rate: 1,
+    mediaLoaded: false,
-    volume: 1,
+    fullscreenMode: false
-    muted: false,
-    resizeMode: 'contain',
-    duration: 0.0,
-    currentTime: 0.0,
-    paused: true,
   };
   
   static navigationOptions = {
@@ -22,6 +18,7 @@ class FilePage extends React.PureComponent {
   };
     
   componentDidMount() {
+    StatusBar.setHidden(false);
     this.fetchFileInfo(this.props);
     this.fetchCostInfo(this.props);
   }
@@ -42,6 +39,26 @@ class FilePage extends React.PureComponent {
     }
   }
   
+  handleFullscreenToggle = (mode) => {
+    this.setState({ fullscreenMode: mode });
+    StatusBar.setHidden(mode);
+    if (NativeModules.ScreenOrientation) {
+      if (mode) {
+        // fullscreen, so change orientation to landscape mode
+        NativeModules.ScreenOrientation.lockOrientationLandscape();
+      } else {
+        NativeModules.ScreenOrientation.unlockOrientation();
+      }
+    }
+  }
+  
+  componentWillUnmount() {
+    StatusBar.setHidden(false);
+    if (NativeModules.ScreenOrientation) {
+      NativeModules.ScreenOrientation.unlockOrientation();
+    }
+  }
+  
   render() {
     const {
       claim,
@@ -73,25 +90,14 @@ class FilePage extends React.PureComponent {
     
     return (
       <View style={filePageStyle.pageContainer}>
-        <View style={filePageStyle.mediaContainer}>
+        <View style={this.state.fullscreenMode ? filePageStyle.fullscreenMedia : filePageStyle.mediaContainer}>
-          {(!fileInfo || !isPlayable) && <FileItemMedia style={filePageStyle.thumbnail} title={title} thumbnail={metadata.thumbnail} />}
+          {(!fileInfo || (isPlayable && !this.state.mediaLoaded)) &&
+            <FileItemMedia style={filePageStyle.thumbnail} title={title} thumbnail={metadata.thumbnail} />}
           {!completed && <FileDownloadButton uri={navigation.state.params.uri} style={filePageStyle.downloadButton} />}
-          
+          {fileInfo && isPlayable && <MediaPlayer fileInfo={fileInfo}
-          {fileInfo && isPlayable &&
+                                                  style={filePageStyle.player}
-            <TouchableOpacity
+                                                  onFullscreenToggled={this.handleFullscreenToggle} 
-              style={filePageStyle.player}
+                                                  onMediaLoaded={() => { this.setState({ mediaLoaded: true }); }}/>}
-              onPress={() => this.setState({ paused: !this.state.paused })}>
-              <Video source={{ uri: 'file:///' + fileInfo.download_path }}
-                     resizeMode="cover"
-                     playInBackground={true}
-                     style={filePageStyle.player}
-                     rate={this.state.rate}
-                     volume={this.state.volume}
-                     paused={this.state.paused}
-                    />
-            </TouchableOpacity>
-          }
-          
         </View>
         <ScrollView style={filePageStyle.scrollContainer}>
           <Text style={filePageStyle.title}>{title}</Text>

app/src/styles/discover.js

@@ -9,11 +9,13 @@ const discoverStyle = StyleSheet.create({
     flex: 1
   },
   title: {
+    fontFamily: 'Metropolis-Regular',
     fontSize: 20,
     textAlign: 'center',
     margin: 10,
   },
   categoryName: {
+    fontFamily: 'Metropolis-Regular',
     fontSize: 20,
     marginLeft: 24,
     marginTop: 16,
@@ -26,15 +28,15 @@ const discoverStyle = StyleSheet.create({
     marginBottom: 48
   },
   fileItemName: {
+    fontFamily: 'Metropolis-Bold',
     marginTop: 8,
-    fontSize: 16,
+    fontSize: 16
-    fontWeight: 'bold'
   },
   channelName: {
+    fontFamily: 'Metropolis-SemiBold',
     fontSize: 14,
     marginTop: 4,
-    color: '#c0c0c0',
+    color: '#c0c0c0'
-    fontWeight: 'bold'
   },
   filePriceContainer: {
     backgroundColor: '#61fcd8',
@@ -47,10 +49,10 @@ const discoverStyle = StyleSheet.create({
     borderRadius: 4 
   },
   filePriceText: {
+    fontFamily: 'Metropolis-Bold',
     fontSize: 12,
     textAlign: 'center',
-    color: '#0c604b',
+    color: '#0c604b'
-    fontWeight: 'bold'
   },
   drawerHamburger: {
     marginLeft: 8

app/src/styles/fileDownloadButton.js

@@ -1,18 +1,19 @@
 import { StyleSheet } from 'react-native';
 
 const fileDownloadButtonStyle = StyleSheet.create({
-    container: {
+  container: {
-        width: 120,
+    width: 120,
-        height: 36,
+    height: 36,
-        borderRadius: 18,
+    borderRadius: 18,
-        justifyContent: 'center',
+    justifyContent: 'center',
-        backgroundColor: '#40c0a9',
+    backgroundColor: '#40c0a9',
-    },
+  },
-    text: {
+  text: {
-        color: '#ffffff',
+    fontFamily: 'Metropolis-Medium',
-        fontSize: 13,
+    color: '#ffffff',
-        textAlign: 'center'
+    fontSize: 14,
-    }
+    textAlign: 'center'
+  }
 });
 
 export default fileDownloadButtonStyle;

app/src/styles/fileItemMedia.js

@@ -5,11 +5,13 @@ const width = screenDimension.width - 48; // screen width minus combined left an
 
 const fileItemMediaStyle = StyleSheet.create({
   autothumb: {
-    width: width,
+    flex: 1,
-    height: 180,
+    width: '100%',
+    height: 200,
     justifyContent: 'center'
   },
   autothumbText: {
+    fontFamily: 'Metropolis-SemiBold',
     textAlign: 'center',
     color: '#ffffff',
     fontSize: 40
@@ -48,8 +50,9 @@ const fileItemMediaStyle = StyleSheet.create({
     backgroundColor: '#ffa726'
   },
   thumbnail: {
-    width: width,
+    flex: 1,
-    height: 180,
+    width: '100%',
+    height: 200,
     shadowColor: 'transparent'
   }
 });

app/src/styles/filePage.js

@@ -12,10 +12,12 @@ const filePageStyle = StyleSheet.create({
     flex: 1
   },
   mediaContainer: {
-    backgroundColor: '#000000',
+    alignItems: 'center',
-    alignItems: 'center'
+    width: screenWidth,
+    height: 220,
   },
   emptyClaimText: {
+    fontFamily: 'Metropolis-Regular',
     textAlign: 'center',
     fontSize: 20,
     marginLeft: 16,
@@ -25,22 +27,23 @@ const filePageStyle = StyleSheet.create({
     flex: 1
   },
   title: {
+    fontFamily: 'Metropolis-Bold',
     fontSize: 24,
-    fontWeight: 'bold',
+    marginTop: 12,
-    marginTop: 20,
     marginLeft: 20,
     marginRight: 20,
     marginBottom: 12
   },
   channelName: {
+    fontFamily: 'Metropolis-SemiBold',
     fontSize: 20,
-    fontWeight: 'bold',
     marginLeft: 20,
     marginRight: 20,
     marginBottom: 20,
     color: '#9b9b9b'
   },
   description: {
+    fontFamily: 'Metropolis-Regular',
     fontSize: 16,
     marginLeft: 20,
     marginRight: 20,
@@ -56,8 +59,20 @@ const filePageStyle = StyleSheet.create({
     top: '50%'
   },
   player: {
-    width: screenWidth,
+    flex: 1,
-    height: 200
+    width: '100%',
+    height: '100%',
+    marginBottom: 14
+  },
+  fullscreenMedia: {
+    position: 'absolute',
+    left: 0,
+    top: 0,
+    right: 0,
+    bottom: 0,
+    flex: 1,
+    backgroundColor: '#000000',
+    zIndex: 100
   }
 });
 

app/src/styles/mediaPlayer.js

@@ -0,0 +1,104 @@
+import { StyleSheet, Dimensions } from 'react-native';
+
+const screenDimension = Dimensions.get('window'); 
+const screenWidth = screenDimension.width;
+
+const mediaPlayerStyle = StyleSheet.create({
+  player: {
+    flex: 1
+  },
+  container: {
+  },
+  progress: {
+    flex: 1,
+    flexDirection: 'row',
+    overflow: 'hidden',
+  },
+  innerProgressCompleted: {
+    height: 4,
+    backgroundColor: '#40c0a9',
+  },
+  innerProgressRemaining: {
+    height: 4,
+    backgroundColor: '#2c2c2c',
+  },
+  trackingControls: {
+    height: 3,
+    width: '100%',
+    position: 'absolute',
+    bottom: 0,
+    left: 0,
+  },
+  playerControls: {
+    position: 'absolute',
+    left: 0,
+    top: 0,
+    width: '100%',
+    height: '100%',
+  },
+  playerControlsContainer: {
+    backgroundColor: 'transparent',
+    flex: 1,
+    alignItems: 'center',
+    justifyContent: 'center'
+  },
+  playPauseButton: {
+    position: 'absolute',
+    width: 64,
+    height: 64,
+    alignItems: 'center',
+    justifyContent: 'center'
+  },
+  toggleFullscreenButton: {
+    position: 'absolute',
+    width: 36,
+    height: 36,
+    alignItems: 'center',
+    justifyContent: 'center',
+    right: 0,
+    bottom: 14,
+  },
+  elapsedDuration: {
+    fontFamily: 'Metropolis-Regular',
+    position: 'absolute',
+    left: 8,
+    bottom: 24,
+    fontSize: 12,
+    color: '#ffffff'
+  },
+  totalDuration: {
+    fontFamily: 'Metropolis-Regular',
+    position: 'absolute',
+    right: 40,
+    bottom: 24,
+    fontSize: 12,
+    color: '#ffffff'
+  },
+  seekerCircle: {
+    borderRadius: 12,
+    position: 'relative',
+    top: 8,
+    left: 8,
+    height: 12,
+    width: 12,
+    backgroundColor: '#40c0a9'
+  },
+  seekerHandle: {
+    position: 'absolute',
+    height: 28,
+    width: 28,
+    bottom: -12,
+    marginLeft: -8
+  },
+  bigSeekerCircle: {
+    borderRadius: 24,
+    position: 'relative',
+    top: 2,
+    left: 8,
+    height: 24,
+    width: 24,
+    backgroundColor: '#40c0a9'
+  }
+});
+
+export default mediaPlayerStyle;

app/src/styles/splash.js

@@ -7,13 +7,14 @@ const splashStyle = StyleSheet.create({
     backgroundColor: '#40b89a'
   },
   title: {
+    fontFamily: 'Metropolis-Bold',
     fontSize: 64,
-    fontWeight: 'bold',
     textAlign: 'center',
     marginBottom: 48,
     color: '#ffffff'
   },
   details: {
+    fontFamily: 'Metropolis-Regular',
     fontSize: 14,
     marginLeft: 16,
     marginRight: 16,
@@ -21,7 +22,7 @@ const splashStyle = StyleSheet.create({
     textAlign: 'center'
   },
   message: {
-    fontWeight: 'bold',
+    fontFamily: 'Metropolis-Bold',
     fontSize: 18,
     color: '#ffffff',
     marginLeft: 16,

src/main/assets/index.android.bundle.meta

@@ -1 +1 @@
-·ѓ*Цї<D0A6>1rЏ8Љ¤)Чт»EгЉ
+WhèÑ'ï¢Ã,š|!ÚÊ.ÔÿòR

src/main/java/io/lbry/lbrynet/reactmodules/DownloadManagerModule.java

@@ -18,7 +18,7 @@ import java.util.Random;
  * Created by akinwale on 3/15/18.
  */
 
-public class LbryDownloadManagerModule extends ReactContextBaseJavaModule {
+public class DownloadManagerModule extends ReactContextBaseJavaModule {
     private Context context;
 
     private HashMap<Integer, NotificationCompat.Builder> builders = new HashMap<Integer, NotificationCompat.Builder>();
@@ -29,7 +29,7 @@ public class LbryDownloadManagerModule extends ReactContextBaseJavaModule {
 
     private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat("#.##");
 
-    public LbryDownloadManagerModule(ReactApplicationContext reactContext) {
+    public DownloadManagerModule(ReactApplicationContext reactContext) {
         super(reactContext);
         this.context = reactContext;
     }

src/main/java/io/lbry/lbrynet/reactmodules/ScreenOrientationModule.java

@@ -0,0 +1,43 @@
+package io.lbry.lbrynet.reactmodules;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.pm.ActivityInfo;
+
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+
+/**
+ * Created by akinwale on 3/19/18.
+ */
+
+public class ScreenOrientationModule extends ReactContextBaseJavaModule {
+    private Context context;
+
+    public ScreenOrientationModule(ReactApplicationContext reactContext) {
+        super(reactContext);
+        this.context = reactContext;
+    }
+
+    @Override
+    public String getName() {
+        return "ScreenOrientation";
+    }
+
+    @ReactMethod
+    public void unlockOrientation() {
+        Activity activity = getCurrentActivity();
+        if (activity != null) {
+            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_USER);
+        }
+    }
+
+    @ReactMethod
+    public void lockOrientationLandscape() {
+        Activity activity = getCurrentActivity();
+        if (activity != null) {
+            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
+        }
+    }
+}

src/main/java/io/lbry/lbrynet/reactpackages/LbryReactPackage.java

@@ -5,7 +5,8 @@ import com.facebook.react.bridge.NativeModule;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.uimanager.ViewManager;
 
-import io.lbry.lbrynet.reactmodules.LbryDownloadManagerModule;
+import io.lbry.lbrynet.reactmodules.DownloadManagerModule;
+import io.lbry.lbrynet.reactmodules.ScreenOrientationModule;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -21,7 +22,8 @@ public class LbryReactPackage implements ReactPackage {
     public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
         List<NativeModule> modules = new ArrayList<>();
 
-        modules.add(new LbryDownloadManagerModule(reactContext));
+        modules.add(new DownloadManagerModule(reactContext));
+        modules.add(new ScreenOrientationModule(reactContext));
         
         return modules;
     }