From b5b5da0684195cb241100d818b76a9bf7800378d Mon Sep 17 00:00:00 2001
From: Nick <nickfujita@gmail.com>
Date: Wed, 30 Jun 2021 11:34:02 +0900
Subject: [PATCH] update exoplayer to allow pre-init and content clear

---
 README.md                                      |  6 ++++++
 .../exoplayer/ReactExoplayerView.java          | 18 ++++++++++++++----
 .../exoplayer/ReactExoplayerViewManager.java   |  1 +
 3 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index fd445187..ab9715d4 100644
--- a/README.md
+++ b/README.md
@@ -770,6 +770,12 @@ Platforms: Android ExoPlayer
 #### source
 Sets the media source. You can pass an asset loaded via require or an object with a uri.
 
+Setting the source will trigger the player to attempt to load the provided media with all other given props. Please be sure that all props are provided before/at the same time as setting the source.
+
+Rendering the player component with a null source will init the player, and start playing once a source value is provided.
+
+Providing a null source value after loading a previous source will stop playback, and clear out the previous source content.
+
 The docs for this prop are incomplete and will be updated as each option is investigated and tested.
 
 
diff --git a/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java b/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
index d7c33214..fe95fdf4 100644
--- a/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
+++ b/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
@@ -465,6 +465,7 @@ class ReactExoplayerView extends FrameLayout implements
                     player.prepare(mediaSource, !haveResumePosition, false);
                     playerNeedsSource = false;
 
+                    reLayout(exoPlayerView);
                     eventEmitter.loadStart();
                     loadVideoStarted = true;
                 }
@@ -1012,7 +1013,6 @@ class ReactExoplayerView extends FrameLayout implements
 
     public void setSrc(final Uri uri, final String extension, Map<String, String> headers) {
         if (uri != null) {
-            boolean isOriginalSourceNull = srcUri == null;
             boolean isSourceEqual = uri.equals(srcUri);
 
             this.srcUri = uri;
@@ -1022,12 +1022,23 @@ class ReactExoplayerView extends FrameLayout implements
                     DataSourceUtil.getDefaultDataSourceFactory(this.themedReactContext, bandwidthMeter,
                             this.requestHeaders);
 
-            if (!isOriginalSourceNull && !isSourceEqual) {
+            if (!isSourceEqual) {
                 reloadSource();
             }
         }
     }
 
+    public void clearSrc() {
+        if (srcUri != null) {
+            player.stop(true);
+            this.srcUri = null;
+            this.extension = null;
+            this.requestHeaders = null;
+            this.mediaDataSourceFactory = null;
+            clearResumePosition();
+        }
+    }
+
     public void setProgressUpdateInterval(final float progressUpdateInterval) {
         mProgressUpdateInterval = progressUpdateInterval;
     }
@@ -1038,14 +1049,13 @@ class ReactExoplayerView extends FrameLayout implements
 
     public void setRawSrc(final Uri uri, final String extension) {
         if (uri != null) {
-            boolean isOriginalSourceNull = srcUri == null;
             boolean isSourceEqual = uri.equals(srcUri);
 
             this.srcUri = uri;
             this.extension = extension;
             this.mediaDataSourceFactory = buildDataSourceFactory(true);
 
-            if (!isOriginalSourceNull && !isSourceEqual) {
+            if (!isSourceEqual) {
                 reloadSource();
             }
         }
diff --git a/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java b/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java
index 0d81e0b2..eccbee75 100644
--- a/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java
+++ b/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java
@@ -144,6 +144,7 @@ public class ReactExoplayerViewManager extends ViewGroupManager<ReactExoplayerVi
         Map<String, String> headers = src.hasKey(PROP_SRC_HEADERS) ? toStringMap(src.getMap(PROP_SRC_HEADERS)) : null;
 
         if (TextUtils.isEmpty(uriString)) {
+            videoView.clearSrc();
             return;
         }