Android录音功能的实现以及踩坑实战记录

public class TestActivity extends BaseActivity {
    private ActivityChatBinding testBinding;
    private MediaRecorder mediaRecorder;
    private boolean isRecorded;

    @Override
    public void initView() {
        testBinding = ActivityTestBinding.inflate(getLayoutInflater());
        setContentView(testBinding.getRoot());
        initMsgAndSth();
        checkPermission();
    }

    private void initMsgAndSth(){
        String record_Home = this.getFilesDir()+\"/Sample\";  //声明存储路径，用绝对路径什么都可以
        //btnTalk就是个Button
        testBinding.btnTalk.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (isRecorded)
                    stopRecordAudio();
                else
                    startRecordAudio(record_Home);
            }
        });
    }

    private void stopRecordAudio() {
        //有的5.0机型上MediaRecorder.stop会报错，这里建议抓取一下异常
        if(mediaRecorder !=null){
            try {
                mediaRecorder.stop();//停止录音
                mediaRecorder.release();//释放资源
                mediaRecorder =null;
            }catch (Exception exception){
                mediaRecorder.reset();//重置
                mediaRecorder.release();//释放资源
                mediaRecorder =null;
            }
            Toast.makeText(this,\"停止录音\",Toast.LENGTH_SHORT).show();
        }
    }

    private void startRecordAudio(String path) {
        //文件夹一定要先创建，不然报错的bug信息中是找不到这里的
        File audioFile = new File(path);
        if (!audioFile.exists()) {
            audioFile.mkdirs();
        } else if (!audioFile.isDirectory()) {
            audioFile.delete();
            audioFile.mkdirs();
        }
        File file = new File(path + \"Sample.amr\");
        if(!file.exists()){
            try {
                file.createNewFile();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if(mediaRecorder == null){
            mediaRecorder = new MediaRecorder();
            mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//设置麦克风
            /*
             * 设置保存输出文件的格式：THREE_GPP/MPEG-4/RAW_AMR/Default THREE_GPP(3gp格式
             * ，H263视频/ARM音频编码)、MPEG-4、RAW_AMR(只支持音频且音频编码要求为AMR_NB)
             */
            mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);

            mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//设置音频文件编码格式
            mediaRecorder.setOutputFile(path+\"Sample.amr\");
        }
        try {
            mediaRecorder.prepare();  //start之前要先prepare
            mediaRecorder.start();
            isRecorded = true;
            Toast.makeText(this,\"开始录音\",Toast.LENGTH_SHORT).show();
        } catch (IllegalStateException el){
            el.printStackTrace();
        } catch (RuntimeException e){
            e.printStackTrace();
        } catch (Exception e){
            e.printStackTrace();
        }
    }

    /**
     * 简单的权限申请逻辑
     */
    private void checkPermission() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            String[] permissions = new String[]{Manifest.permission.RECORD_AUDIO,Manifest.permission.WRITE_EXTERNAL_STORAGE};
            for (String permission : permissions) {
                if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
                    ActivityCompat.requestPermissions(this, permissions, 200);
                    return;
                }
            }
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[]
            grantResults) {
        super.onRequestPermissionsResult(requestCode,permissions,grantResults);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && requestCode == 200) {
            for (int i = 0; i < permissions.length; i++) {
                if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
                    Intent intent = new Intent();
                    intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                    Uri uri = Uri.fromParts(\"package\", getPackageName(), null);
                    intent.setData(uri);
                    startActivityForResult(intent, 200);
                    return;
                }
            }
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == RESULT_OK && requestCode == 200) {
            checkPermission();
        }
    }
}

android:requestLegacyExternalStorage=\"true\"

RuntimeException: setAudioSource failed