1、新增音量设置接口：setVolume(int percent); //percent 取值范围( 0 - 100 )； 0是静音;

2、新增 setMuteSolo(int mute); //设置声道；0立体声；1左声道；2右声道
3、视屏全屏模式下按系统返回键退出全屏

app/src/main/java/io/microshow/rxffmpeg/app/activity/MainActivity.java

@@ -82,18 +82,34 @@ private View getHomeTabItem(int index) {
     public boolean onKeyDown(int keyCode, KeyEvent event) {
 
         Fragment mFragment = getSupportFragmentManager().findFragmentByTag(myTabhost.getCurrentTabTag());
-        MeFragment mFindFragment = null;
+        MeFragment mMeFragment = null;
+        FindFragment mFindFragment = null;
 
         if (mFragment instanceof MeFragment) {
-            mFindFragment = (MeFragment) mFragment;
+            mMeFragment = (MeFragment) mFragment;
         }
 
-        if (mFindFragment != null && mFindFragment.onKeyDown(keyCode, event)) {
-            return true;
+        if (mFragment instanceof FindFragment) {
+            mFindFragment = (FindFragment) mFragment;
+        }
+
+        if (mMeFragment != null) {
+            if (mMeFragment.onKeyDown(keyCode, event)) {
+                return true;
+            } else {
+                return super.onKeyDown(keyCode, event);
+            }
+
+        } else if (mFindFragment != null) {
+            if (mFindFragment.onKeyDown(keyCode, event)) {
+                return true;
+            } else {
+                return super.onKeyDown(keyCode, event);
+            }
+
         } else {
             return super.onKeyDown(keyCode, event);
         }
-
     }
 
     @Override

app/src/main/java/io/microshow/rxffmpeg/app/fragment/BaseFragment.java

@@ -1,6 +1,7 @@
 package io.microshow.rxffmpeg.app.fragment;
 
 import android.os.Bundle;
+import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -44,6 +45,10 @@ public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container,
 
     public abstract void initData();
 
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        return false;
+    }
+
     /**
      * 获取当前类名(没有包名)
      */

app/src/main/java/io/microshow/rxffmpeg/app/fragment/FindFragment.java

@@ -2,6 +2,7 @@
 
 import android.os.Bundle;
 import android.text.TextUtils;
+import android.view.KeyEvent;
 import android.view.View;
 
 import androidx.annotation.Nullable;
@@ -52,10 +53,20 @@ public void initData() {
         mPlayerView.setController(new RxFFmpegPlayerControllerImpl(getActivity()), MeasureHelper.FitModel.FM_DEFAULT);
 
         //播放
-        binding.mPlayerView.play(binding.editText.getText().toString(), true);
+        mPlayerView.play(binding.editText.getText().toString(), true);
 
     }
 
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (mPlayerView.isFullScreenModel()) {//当前处于全屏模式，这里需要退出全屏
+            mPlayerView.switchScreen();//退出全屏
+            return true;
+        } else {
+            return super.onKeyDown(keyCode, event);
+        }
+    }
+
     @Override
     public void onResume() {
         super.onResume();

app/src/main/java/io/microshow/rxffmpeg/app/fragment/MeFragment.java

@@ -38,6 +38,7 @@ public void initData() {
                 .go("https://github.com/microshow/RxFFmpeg");
     }
 
+    @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         return agentWeb != null && agentWeb.handleKeyEvent(keyCode, event);
     }

configs.gradle

@@ -11,8 +11,8 @@ ext {
     //支持包版本
     supportLibValue = "28.0.0"
     //应用 versionCode
-    versionCodeValue = 400
+    versionCodeValue = 410
     //应用 version 名称，更多设置里显示的
-    versionNameValue = "4.0.0"
+    versionNameValue = "4.1.0"
 
 }

rxffmpeg/src/main/java/io/microshow/rxffmpeg/player/IMediaPlayer.java

@@ -83,6 +83,29 @@ public interface IMediaPlayer {
      */
     boolean isPlaying();
 
+    /**
+     * 设置音量
+     * @param percent 取值范围( 0 - 100 )； 0是静音
+     */
+    void setVolume(int percent);
+
+    /**
+     * 获取音量 默认100
+     */
+    int getVolume();
+
+    /**
+     * 设置声道；0立体声；1左声道；2右声道
+     */
+    void setMuteSolo(int mute);
+
+    /**
+     * 获取声道：0立体声；1左声道；2右声道；
+     * 如果没有调用setMuteSolo，则返回-1 （默认没有设置）
+     * @return
+     */
+    int getMuteSolo();
+
     /**
      * 回收流媒体资源
      */

rxffmpeg/src/main/java/io/microshow/rxffmpeg/player/RxFFmpegPlayer.java

@@ -42,11 +42,13 @@ public abstract class RxFFmpegPlayer implements IMediaPlayer {
 
     private native boolean nativeIsPlaying();
 
+    private native void nativeSetVolume(int percent);
 
-    /**
-     * 视频路径
-     */
-    private String path;
+    private native int nativeGetVolume();
+
+    private native void nativeSetMuteSolo(int mute);
+
+    private native int nativeGetMuteSolo();
 
     private OnPreparedListener mOnPreparedListener;
 
@@ -60,15 +62,20 @@ public abstract class RxFFmpegPlayer implements IMediaPlayer {
 
     private OnCompletionListener mOnCompletionListener;
 
+    /**
+     * 视频路径
+     */
+    protected String path;
+
     /**
      * 总时长
      */
-    private int mDuration = 0;
+    protected int mDuration = 0;
 
     /**
      * 循环标志
      */
-    private boolean looping;
+    protected boolean looping;
 
     private CompositeDisposable mCompositeDisposable;
 
@@ -148,6 +155,26 @@ public boolean isPlaying() {
         return nativeIsPlaying();
     }
 
+    @Override
+    public void setVolume(int percent) {
+        nativeSetVolume(percent);
+    }
+
+    @Override
+    public int getVolume() {
+        return nativeGetVolume();
+    }
+
+    @Override
+    public void setMuteSolo(int mute) {
+        nativeSetMuteSolo(mute);
+    }
+
+    @Override
+    public int getMuteSolo() {
+        return nativeGetMuteSolo();
+    }
+
     @Override
     public void release() {
         setOnPreparedListener(null);

rxffmpeg/src/main/java/io/microshow/rxffmpeg/player/RxFFmpegPlayerControllerImpl.java

@@ -25,6 +25,7 @@ public class RxFFmpegPlayerControllerImpl extends RxFFmpegPlayerController {
     private View mBottomPanel;
     private ImageView playBtn;
     private View repeatPlay;
+    private ImageView muteImage;//静音图标
 
     private boolean isSeeking = false;
     public int mPosition;
@@ -64,6 +65,14 @@ public void onClick(View view) {
                 }
             }
         });
+        muteImage = findViewById(R.id.iv_mute);
+        muteImage.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                //静音
+                switchMute();
+            }
+        });
 
         playBtn.setOnClickListener(new OnClickListener() {
             @Override
@@ -79,6 +88,20 @@ public void onClick(View view) {
         });
     }
 
+    public void switchMute() {
+        if (mPlayerView != null) {
+            if (mPlayerView.getVolume() == 0) {
+                //当前是静音，设置为非静音
+                mPlayerView.setVolume(100);
+                muteImage.setImageResource(R.mipmap.rxffmpeg_player_unmute);
+            } else {
+                //当前不是静音，设置为静音
+                mPlayerView.setVolume(0);
+                muteImage.setImageResource(R.mipmap.rxffmpeg_player_mute);
+            }
+        }
+    }
+
     @Override
     public void initListener() {
         PlayerListener mPlayerListener = new PlayerListener(this);
@@ -231,6 +254,10 @@ public void onPause() {
     public void onResume() {
         playBtn.setImageResource(R.mipmap.rxffmpeg_player_pause);
         playBtn.animate().alpha(1f).start();//隐藏 播放按钮
+        //设置静音图标
+        if (mPlayerView != null) {
+            muteImage.setImageResource(mPlayerView.getVolume() == 0 ? R.mipmap.rxffmpeg_player_mute : R.mipmap.rxffmpeg_player_unmute);
+        }
     }
 
 }

rxffmpeg/src/main/java/io/microshow/rxffmpeg/player/RxFFmpegPlayerView.java

@@ -232,6 +232,48 @@ public boolean isLooping() {
 //        mPlayer.stop();
 //    }
 
+    /**
+     * 设置音量 (需要在play方法之前调用)
+     * @param percent 取值范围( 0 - 100 )； 0是静音
+     */
+    public void setVolume(int percent) {
+        if (mPlayer != null) {
+            mPlayer.setVolume(percent);
+        }
+    }
+
+    /**
+     * 获取音量
+     * @return volume
+     */
+    public int getVolume() {
+        if (mPlayer != null) {
+            return mPlayer.getVolume() != -1 ? mPlayer.getVolume() : 100;
+        } else {
+            return 100;
+        }
+    }
+
+    /**
+     * 设置声道；0立体声；1左声道；2右声道
+     */
+    public void setMuteSolo(int mute) {
+        if (mPlayer != null) {
+            mPlayer.setMuteSolo(mute);
+        }
+    }
+
+    /**
+     * 获取声道：0立体声；1左声道；2右声道；
+     */
+    public int getMuteSolo() {
+        if (mPlayer != null) {
+            return mPlayer.getMuteSolo() != -1 ? mPlayer.getMuteSolo() : 0;
+        } else {
+            return 0;
+        }
+    }
+
     /**
      * 销毁
      */
@@ -243,27 +285,36 @@ public void release() {
         setKeepScreenOn(false);//设置屏幕保持常亮
     }
 
+    /**
+     * 当前是否是全屏
+     * @return true:是；false:否
+     */
+    public boolean isFullScreenModel() {
+        return mCurrentMode == MODE_FULL_SCREEN;
+    }
+
     /**
      * 切换全屏或关闭全屏
+     * @return true已经进入到全屏
      */
-    public void switchScreen() {
-        if (mCurrentMode == MODE_FULL_SCREEN) {
+    public boolean switchScreen() {
+        if (isFullScreenModel()) {
             //是全屏 则退出全屏
-            exitFullScreen();//退出全屏
+            return exitFullScreen();//退出全屏
         } else {
-            enterFullScreen();//进入全屏
+            return enterFullScreen();//进入全屏
         }
     }
 
     /**
      * 进入全屏
      */
-    public void enterFullScreen() {
-        if (mCurrentMode == MODE_FULL_SCREEN) return;
+    public boolean enterFullScreen() {
+        if (mCurrentMode == MODE_FULL_SCREEN) return false;
 
         ViewGroup decorView = Helper.setFullScreen(mContext, true);
         if (decorView == null)
-            return;
+            return false;
 
         this.removeView(mContainer);
 
@@ -273,17 +324,19 @@ public void enterFullScreen() {
         decorView.addView(mContainer, params);
 
         mCurrentMode = MODE_FULL_SCREEN;
+
+        return true;
     }
 
     /**
      * 退出全屏
      */
-    public void exitFullScreen() {
+    public boolean exitFullScreen() {
         if (mCurrentMode == MODE_FULL_SCREEN) {
 
             ViewGroup decorView = Helper.setFullScreen(mContext, false);
             if (decorView == null)
-                return;
+                return false;
 
             decorView.removeView(mContainer);
             LayoutParams params = new LayoutParams(
@@ -293,6 +346,7 @@ public void exitFullScreen() {
 
             mCurrentMode = MODE_NORMAL;
         }
+        return false;
     }
 
     //屏幕旋转后改变