refactor: safe check getActivityContext to avoid NPE

gsyVideoPlayer-java/src/main/java/com/shuyu/gsyvideoplayer/video/base/GSYBaseVideoPlayer.java

@@ -628,10 +628,10 @@ public abstract class GSYBaseVideoPlayer extends GSYVideoControlView {
             final GSYBaseVideoPlayer gsyVideoPlayer;
             if (!hadNewConstructor) {
                 constructor = (Constructor<GSYBaseVideoPlayer>) GSYBaseVideoPlayer.this.getClass().getConstructor(Context.class);
-                gsyVideoPlayer = constructor.newInstance(getActivityContext());
+                gsyVideoPlayer = constructor.newInstance(mContext);
             } else {
                 constructor = (Constructor<GSYBaseVideoPlayer>) GSYBaseVideoPlayer.this.getClass().getConstructor(Context.class, Boolean.class);
-                gsyVideoPlayer = constructor.newInstance(getActivityContext(), true);
+                gsyVideoPlayer = constructor.newInstance(mContext, true);
             }
 
             gsyVideoPlayer.setId(getFullId());

gsyVideoPlayer-java/src/main/java/com/shuyu/gsyvideoplayer/video/base/GSYVideoControlView.java

@@ -273,8 +273,9 @@ public abstract class GSYVideoControlView extends GSYVideoView implements View.O
             });
         }
 
-
-        mSeekEndOffset = CommonUtil.dip2px(getActivityContext(), 50);
+        if (getActivityContext()!=null) {
+            mSeekEndOffset = CommonUtil.dip2px(getActivityContext(), 50);
+        }
     }
 
     @Override
@@ -668,10 +669,12 @@ public abstract class GSYVideoControlView extends GSYVideoView implements View.O
     }
 
     protected void touchSurfaceMove(float deltaX, float deltaY, float y) {
-
-        int curWidth = CommonUtil.getCurrentScreenLand((Activity) getActivityContext()) ? mScreenHeight : mScreenWidth;
-        int curHeight = CommonUtil.getCurrentScreenLand((Activity) getActivityContext()) ? mScreenWidth : mScreenHeight;
-
+        int curWidth = 0;
+        int curHeight = 0;
+        if (getActivityContext()!=null) {
+             curWidth = CommonUtil.getCurrentScreenLand((Activity) getActivityContext()) ? mScreenHeight : mScreenWidth;
+             curHeight = CommonUtil.getCurrentScreenLand((Activity) getActivityContext()) ? mScreenWidth : mScreenHeight;
+        }
         if (mChangePosition) {
             int totalTimeDuration = getDuration();
             mSeekTimePosition = (int) (mDownPosition + (deltaX * totalTimeDuration / curWidth) / mSeekRatio);
@@ -698,10 +701,10 @@ public abstract class GSYVideoControlView extends GSYVideoView implements View.O
     }
 
     protected void touchSurfaceMoveFullLogic(float absDeltaX, float absDeltaY) {
-
-
-        int curWidth = CommonUtil.getCurrentScreenLand((Activity) getActivityContext()) ? mScreenHeight : mScreenWidth;
-
+        int curWidth = 0;
+        if (getActivityContext()!=null) {
+            curWidth = CommonUtil.getCurrentScreenLand((Activity) getActivityContext()) ? mScreenHeight : mScreenWidth;
+        }
         if (absDeltaX > mThreshold || absDeltaY > mThreshold) {
             cancelProgressTimer();
             if (absDeltaX >= mThreshold) {

gsyVideoPlayer-java/src/main/java/com/shuyu/gsyvideoplayer/video/base/GSYVideoView.java

@@ -270,9 +270,9 @@ public abstract class GSYVideoView extends GSYTextureRenderView implements GSYMe
         mTextureViewContainer = (ViewGroup) findViewById(R.id.surface_container);
         if (isInEditMode())
             return;
-        mScreenWidth = getActivityContext().getResources().getDisplayMetrics().widthPixels;
-        mScreenHeight = getActivityContext().getResources().getDisplayMetrics().heightPixels;
-        mAudioManager = (AudioManager) getActivityContext().getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
+        mScreenWidth = mContext.getResources().getDisplayMetrics().widthPixels;
+        mScreenHeight = mContext.getResources().getDisplayMetrics().heightPixels;
+        mAudioManager = (AudioManager) mContext.getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
 
     }
 
@@ -329,7 +329,9 @@ public abstract class GSYVideoView extends GSYTextureRenderView implements GSYMe
         getGSYVideoManager().setPlayTag(mPlayTag);
         getGSYVideoManager().setPlayPosition(mPlayPosition);
         mAudioManager.requestAudioFocus(onAudioFocusChangeListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
-        ((Activity) getActivityContext()).getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        if (mContext instanceof Activity) {
+            ((Activity) mContext).getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        }
         mBackUpPlayingBufferState = -1;
         getGSYVideoManager().prepare(mUrl, (mMapHeadData == null) ? new HashMap<String, String>() : mMapHeadData, mLooping, mSpeed, mCache, mCachePath, mOverrideExtension);
         setStateAndUi(CURRENT_STATE_PREPAREING);
@@ -603,8 +605,9 @@ public abstract class GSYVideoView extends GSYTextureRenderView implements GSYMe
         if (!mIfCurrentIsFullscreen)
             getGSYVideoManager().setLastListener(null);
         mAudioManager.abandonAudioFocus(onAudioFocusChangeListener);
-        ((Activity) getActivityContext()).getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
-
+        if (mContext instanceof Activity) {
+            ((Activity) mContext).getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        }
         releaseNetWorkState();
 
         if (mVideoAllCallBack != null && isCurrentMediaListener()) {
@@ -633,7 +636,9 @@ public abstract class GSYVideoView extends GSYTextureRenderView implements GSYMe
         getGSYVideoManager().setCurrentVideoWidth(0);
 
         mAudioManager.abandonAudioFocus(onAudioFocusChangeListener);
-        ((Activity) getActivityContext()).getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        if (mContext instanceof Activity) {
+            ((Activity) mContext).getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        }
 
         releaseNetWorkState();
 
@@ -821,7 +826,7 @@ public abstract class GSYVideoView extends GSYTextureRenderView implements GSYMe
      */
     protected void createNetWorkState() {
         if (mNetInfoModule == null) {
-            mNetInfoModule = new NetInfoModule(getActivityContext().getApplicationContext(), new NetInfoModule.NetChangeListener() {
+            mNetInfoModule = new NetInfoModule(mContext.getApplicationContext(), new NetInfoModule.NetChangeListener() {
                 @Override
                 public void changed(String state) {
                     if (!mNetSate.equals(state)) {