解决编译问题

android/build.gradle

 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.android.support:appcompat-v7:27.1.1'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 }

android/src/main/java/com/fgodt/mixplayer/Core.java → android/src/main/java/com/shuangyubang/mofun_flutter_plugin_video/mixplayer/Core.java

-package com.fgodt.mixplayer;
+package com.shuangyubang.mofun_flutter_plugin_video.mixplayer;
 
 import android.util.Log;
 import android.view.Surface;
-import android.view.SurfaceHolder;
-
-
-import java.util.Arrays;
 
 /**
  * Created by rt-zl on 2019/2/15.

android/src/main/java/com/fgodt/mixplayer/Player.java → android/src/main/java/com/shuangyubang/mofun_flutter_plugin_video/mixplayer/Player.java

-package com.fgodt.mixplayer;
+package com.shuangyubang.mofun_flutter_plugin_video.mixplayer;
 
 import android.content.Context;
 

android/src/main/java/com/fgodt/mixplayer/Render.java → android/src/main/java/com/shuangyubang/mofun_flutter_plugin_video/mixplayer/Render.java

-package com.fgodt.mixplayer;
+package com.shuangyubang.mofun_flutter_plugin_video.mixplayer;
 
 import android.content.Context;
 import android.media.AudioFormat;
 
     public int mixUpdateAudio(byte[] data, int size, double pts) {
         playTime = pts;
-        synchronized (audioBuf) {
+        synchronized (audioBufLock) {
             if (audioBufLen - audioHas < size) {
                 return -1;
             }
 
     AudioTrack audioTrack;
 
+    final Object audioBufLock = new Object();
     byte[] audioBuf;
     long totalAudioBuf;
     int audioHas;
 
     private void initAudioTrack() {
         silencBuf = new byte[4096];
-        audioBuf = new byte[audioBufLen];
+        synchronized (audioBufLock) {
+            audioBuf = new byte[audioBufLen];
+        }
         audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, asample,
                 AudioFormat.CHANNEL_IN_STEREO, AudioFormat.ENCODING_PCM_16BIT, audioBufLen, AudioTrack.MODE_STREAM);
         play = true;
-        new Thread(new Runnable() {
-            @Override
-            public void run() {
-                int wsize = 1024;
-                long posPre = 0;
-                boolean needUpdate = false;
-                int retryCount = 0;
-                while (play) {
-                    synchronized (audioBuf) {
-                        long pos = audioTrack.getPlaybackHeadPosition();
-                        // 16bit 2channels = 4 Byte
-                        pos *= 4;
-                        pos -= silenceLen;
-                        if (posPre != pos) {
-                            posPre = pos;
-                            retryCount = 0;
-                        } else {
-                            if (retryCount > 5)
-                                needUpdate = true;
-                            retryCount++;
+        new Thread(() -> {
+            int wsize = 1024;
+            long posPre = 0;
+            boolean needUpdate = false;
+            int retryCount = 0;
+            while (play) {
+                synchronized (audioBufLock) {
+                    long pos = audioTrack.getPlaybackHeadPosition();
+                    // 16bit 2channels = 4 Byte
+                    pos *= 4;
+                    pos -= silenceLen;
+                    if (posPre != pos) {
+                        posPre = pos;
+                        retryCount = 0;
+                    } else {
+                        if (retryCount > 5)
+                            needUpdate = true;
+                        retryCount++;
+                    }
+                    if (audioHas >= wsize && totalAudioBuf - pos < audioBufLen || pos <= 0 || needUpdate) {
+                        needUpdate = false;
+                        int len = audioBufLen - audioRPos;
+                        len = len > wsize ? wsize : len;
+                        int ret = audioTrack.write(audioBuf, audioRPos, len);
+                        audioRPos += ret;
+                        audioHas -= ret;
+                        totalAudioBuf += ret;
+                        if (audioRPos == audioBufLen) {
+                            audioRPos = 0;
                         }
-                        if (audioHas >= wsize && totalAudioBuf - pos < audioBufLen || pos <= 0 || needUpdate) {
-                            needUpdate = false;
-                            int len = audioBufLen - audioRPos;
-                            len = len > wsize ? wsize : len;
-                            int ret = audioTrack.write(audioBuf, audioRPos, len);
-                            audioRPos += ret;
-                            audioHas -= ret;
-                            totalAudioBuf += ret;
-                            if (audioRPos == audioBufLen) {
-                                audioRPos = 0;
+                    } else {
+                        //    if (pos == totalAudioBuf && audioHas < wsize){
+                        //        int c = audioTrack.write(silencBuf,0,2048);
+                        //        silenceLen +=c;
+                        //    }
+                    }
+                    if (ispause) {
+                        if (audioTrack.getPlayState() != AudioTrack.PLAYSTATE_PAUSED) {
+                            audioTrack.pause();
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                                audioTrack.setVolume(0);
+                            } else {
+                                audioTrack.setStereoVolume(0, 0);
                             }
-                        } else {
-                            //    if (pos == totalAudioBuf && audioHas < wsize){
-                            //        int c = audioTrack.write(silencBuf,0,2048);
-                            //        silenceLen +=c;
-                            //    }
                         }
-                        if (ispause) {
-                            if (audioTrack.getPlayState() != AudioTrack.PLAYSTATE_PAUSED) {
-                                audioTrack.pause();
-                                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-                                    audioTrack.setVolume(0);
-                                } else {
-                                    audioTrack.setStereoVolume(0, 0);
-                                }
-                            }
-                        } else {
-                            if (audioTrack.getPlayState() != AudioTrack.PLAYSTATE_PLAYING) {
-                                audioTrack.play();
-                                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-                                    audioTrack.setVolume(volume);
-                                } else {
-                                    audioTrack.setStereoVolume(volume, volume);
-                                }
+                    } else {
+                        if (audioTrack.getPlayState() != AudioTrack.PLAYSTATE_PLAYING) {
+                            audioTrack.play();
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                                audioTrack.setVolume(volume);
+                            } else {
+                                audioTrack.setStereoVolume(volume, volume);
                             }
                         }
                     }
-                    try {
-                        sleep(3);
-                    } catch (Exception ex) {
-                    }
                 }
-                Log.d("mixplayer", "audio close");
+                try {
+                    sleep(3);
+                } catch (Exception ignored) {
+                }
             }
+            Log.d("mixplayer", "audio close");
         }).start();
         audioTrack.play();
     }

android/src/main/java/com/fgodt/mixplayer/VideoRender.java → android/src/main/java/com/shuangyubang/mofun_flutter_plugin_video/mixplayer/VideoRender.java

-package com.fgodt.mixplayer;
+package com.shuangyubang.mofun_flutter_plugin_video.mixplayer;
 
 
 

android/src/main/java/com/fgodt/mixplayer/mixPlayerCallBack.java → android/src/main/java/com/shuangyubang/mofun_flutter_plugin_video/mixplayer/mixPlayerCallBack.java

-package com.fgodt.mixplayer;
+package com.shuangyubang.mofun_flutter_plugin_video.mixplayer;
 
 public interface mixPlayerCallBack{
     public int mix_call(String name, byte[] data, int len);

android/src/main/kotlin/com/shuangyubang/mofun_flutter_plugin_video/MofunRealVideoView.kt

 import android.media.AudioFormat
 import android.media.AudioRecord
 import android.media.MediaRecorder
-import android.os.Environment
-import android.view.Gravity
 import android.view.View
 import android.widget.FrameLayout
 import android.widget.Toast
-import com.fgodt.mixplayer.Player
-import com.fgodt.mixplayer.mixPlayerCallBack
+import com.shuangyubang.mofun_flutter_plugin_video.mixplayer.Player
+import com.shuangyubang.mofun_flutter_plugin_video.mixplayer.mixPlayerCallBack
 
 class MofunRealVideoView(val context: Context) : mixPlayerCallBack {
 

example/android/app/build.gradle

         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
     }
 
     buildTypes {
     source '../..'
 }
 
+tasks.withType(JavaCompile) {
+    options.encoding = 'UTF-8'
+    options.compilerArgs << '-Xlint:unchecked,deprecation'
+}
+
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     testImplementation 'junit:junit:4.12'

example/android/gradle.properties

 org.gradle.jvmargs=-Xmx1536M
+android.useAndroidX=true

example/pubspec.lock

     source: hosted
     version: "1.5.0"
   permission_handler:
-    dependency: "direct main"
+    dependency: transitive
     description:
       name: permission_handler
       url: "https://pub.flutter-io.cn"

example/pubspec.yaml

   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.2
-  permission_handler: ^3.0.0
 
 dev_dependencies:
   flutter_test: