diff --git a/library/src/main/java/cn/jzvd/Jzvd.java b/library/src/main/java/cn/jzvd/Jzvd.java
index 057d982c..99ad4c23 100644
--- a/library/src/main/java/cn/jzvd/Jzvd.java
+++ b/library/src/main/java/cn/jzvd/Jzvd.java
@@ -2,6 +2,7 @@
 
 import android.content.Context;
 import android.content.pm.ActivityInfo;
+import android.content.res.Configuration;
 import android.hardware.Sensor;
 import android.hardware.SensorEvent;
 import android.hardware.SensorEventListener;
@@ -67,6 +68,7 @@ public abstract class Jzvd extends FrameLayout implements View.OnClickListener,
     public static int ON_PLAY_PAUSE_TMP_STATE = 0;//这个考虑不放到库里，去自定义
     public static int backUpBufferState = -1;
     public static float PROGRESS_DRAG_RATE = 1f;//进度条滑动阻尼系数 越大播放进度条滑动越慢
+    boolean isVideoLandscape = true;//视频方向
     public static AudioManager.OnAudioFocusChangeListener onAudioFocusChangeListener = new AudioManager.OnAudioFocusChangeListener() {//是否新建个class，代码更规矩，并且变量的位置也很尴尬
         @Override
         public void onAudioFocusChange(int focusChange) {
@@ -429,6 +431,17 @@ protected void touchActionUp() {
         startProgressTimer();
     }
 
+    public boolean isOrientationLandscape() {
+        if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
+            Log.i("info", "landscape"); // 横屏
+            return true;
+        } else if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
+            Log.i("info", "portrait"); // 竖屏
+            return false;
+        }
+        return true;
+    }
+
     protected void touchActionMove(float x, float y) {
         Log.i(TAG, "onTouch surfaceContainer actionMove [" + this.hashCode() + "] ");
         float deltaX = x - mDownX;
@@ -452,7 +465,7 @@ protected void touchActionMove(float x, float y) {
                         }
                     } else {
                         //如果y轴滑动距离超过设置的处理范围，那么进行滑动事件处理
-                        if (mDownX < mScreenHeight * 0.5f) {//左侧改变亮度
+                        if (mDownX < (isOrientationLandscape() ? mScreenHeight * 0.5f : mScreenWidth * 0.5f)) {//左侧改变亮度
                             mChangeBrightness = true;
                             WindowManager.LayoutParams lp = JZUtils.getWindow(getContext()).getAttributes();
                             if (lp.screenBrightness < 0) {
@@ -845,6 +858,17 @@ public void onVideoSizeChanged(int width, int height) {
             }
             textureView.setVideoSize(width, height);
         }
+        setFullScreenOrientation(isVideoLandscape = width > height);
+    }
+
+    private void setFullScreenOrientation(boolean isLandscape) {
+
+        if (screen == SCREEN_FULLSCREEN)
+            if (isLandscape) {
+                JZUtils.setRequestedOrientation(jzvdContext, ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
+            } else {
+                JZUtils.setRequestedOrientation(jzvdContext, ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
+            }
     }
 
     public void startProgressTimer() {
@@ -998,7 +1022,8 @@ public void gotoFullscreen() {
 
         setScreenFullscreen();
         JZUtils.hideStatusBar(jzvdContext);
-        JZUtils.setRequestedOrientation(jzvdContext, FULLSCREEN_ORIENTATION);
+//        JZUtils.setRequestedOrientation(jzvdContext, FULLSCREEN_ORIENTATION);
+        setFullScreenOrientation(isVideoLandscape);
         JZUtils.hideSystemUI(jzvdContext);//华为手机和有虚拟键的手机全屏时可隐藏虚拟键 issue:1326
 
     }