add ability to change progress update interval (#289)

* added progressUpdateInterval prop iOS

* add prop to Video.js

* added progressUpdateInterval prop iOS

* add prop to Video.js

README.md

@@ -86,23 +86,23 @@ Under `.addPackage(new MainReactPackage())`:
 // Within your render function, assuming you have a file called
 // "background.mp4" in your project. You can include multiple videos
 // on a single screen if you like.
-<Video
-  source={{uri: "background"}} // Can be a URL or a local file.
+
+<Video source={{uri: "background"}}   // Can be a URL or a local file.
        rate={1.0}                     // 0 is paused, 1 is normal.
        volume={1.0}                   // 0 is muted, 1 is normal.
        muted={false}                  // Mutes the audio entirely.
        paused={false}                 // Pauses playback entirely.
        resizeMode="cover"             // Fill the whole screen at aspect ratio.
        repeat={true}                  // Repeat forever.
-  playInBackground={false}     // Audio continues to play when aentering background.
-  playWhenInactive={false}     // [iOS] Video continues to play whcontrol or notification center are shown.
+       playInBackground={false}       // Audio continues to play when app entering background.
+       playWhenInactive={false}       // [iOS] Video continues to play when control or notification center are shown.
+       progressUpdateInterval={250.0} // [iOS] Interval to fire onProgress (default to ~250ms)
        onLoadStart={this.loadStart}   // Callback when video starts to load
        onLoad={this.setDuration}      // Callback when video loads
        onProgress={this.setTime}      // Callback every ~250ms with currentTime
        onEnd={this.onEnd}             // Callback when playback finishes
        onError={this.videoError}      // Callback when video cannot be loaded
-  style={styles.backgroundVideo}
-/>
+       style={styles.backgroundVideo} />
 
 // Later on in your styles..
 var styles = StyleSheet.create({

Video.js

@@ -199,6 +199,7 @@ Video.propTypes = {
   playWhenInactive: PropTypes.bool,
   controls: PropTypes.bool,
   currentTime: PropTypes.number,
+  progressUpdateInterval: PropTypes.number,
   onLoadStart: PropTypes.func,
   onLoad: PropTypes.func,
   onError: PropTypes.func,

ios/RCTVideo.m

@@ -636,6 +636,11 @@ static NSString *const playbackRate = @"rate";
     }
 }
 
+- (void)setProgressUpdateInterval:(float)progressUpdateInterval
+{
+  _progressUpdateInterval = progressUpdateInterval;
+}
+
 - (void)removePlayerLayer
 {
     [_playerLayer removeFromSuperlayer];

ios/RCTVideoManager.m

@@ -54,6 +54,7 @@ RCT_EXPORT_VIEW_PROPERTY(rate, float);
 RCT_EXPORT_VIEW_PROPERTY(seek, float);
 RCT_EXPORT_VIEW_PROPERTY(currentTime, float);
 RCT_EXPORT_VIEW_PROPERTY(fullscreen, BOOL);
+RCT_EXPORT_VIEW_PROPERTY(progressUpdateInterval, float);
 
 - (NSDictionary *)constantsToExport
 {