我无法在android中录制双方的音频。使用以下代码仅录制一侧音频。 android可以录音吗？
公共类CallRecordingService扩展服务{
private MediaPlayer mPlayer = null;
private MediaRecorder mRecorder = null;
private static final String LOG_TAG = CallRecordingService.class.getSimpleName();
private String savingPath;
boolean isRecordStarted = false;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
super.onStartCommand(intent, flags, startId);
savingPath = intent.getStringExtra("OUTPUT_PATH");
AppApplication.getInstance().saveIntoPrefs(MConstants.RECORDING_FILE_PATH, savingPath);
startRecording();
return START_NOT_STICKY;
}
// this process must be done prior to the start of recording
private void resetRecorder() {
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mRecorder.setAudioEncodingBitRate(48000);
} else {
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mRecorder.setAudioEncodingBitRate(64000);
}
mRecorder.setAudioSamplingRate(8000);
mRecorder.setOutputFile(savingPath);
try {
mRecorder.prepare();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
private void startRecording() {
if (mRecorder != null) {
mRecorder.stop();
mRecorder.release();
}
mRecorder = new MediaRecorder();
resetRecorder();
try {
// Sometimes prepare takes some time to complete
Thread.sleep(2000);
if (!isRecordStarted) {
mRecorder.start();
isRecordStarted = true;
} else if (isRecordStarted) {
isRecordStarted = false;
stopRecording();
}
} catch (InterruptedException | IllegalStateException e) {
e.printStackTrace();
}
}
public void stopRecording() {
if (mRecorder != null) {
mRecorder.stop();
mRecorder.reset();
mRecorder.release();
mRecorder = null;
}
}
}
我被迫在我的应用程序中实现此录制功能。如果有人完成了这种实现，那么请解决我的错误。
<manifest>
<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
<uses-permission android:name="android.permission.RECORD_AUDIO"/>
....
<application>
....
<service
android:name=".CallForegroundService"
android:enabled="true"
android:exported="false" />
</application>
</manifest>
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.media.MediaRecorder;
import android.os.Build;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
import androidx.annotation.Nullable;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class CallForegroundService extends Service {
private static final String TAG = "ForegroundService";
private boolean isStarted;
private MediaRecorder mRecorder;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
startRecording(number);
return START_NOT_STICKY;
}
@Override
public void onDestroy() {
super.onDestroy();
stopRecording();
}
private void startRecording(String number) {
try {
String path = getApplicationContext().getFilesDir().getPath();
//String selectedPath = Environment.getExternalStorageDirectory() + "/Testing";
//String selectedPath = Environment.getExternalStorageDirectory().getAbsolutePath() +"/Android/data/" + packageName + "/system_sound";
File file = new File(path);
if (!file.exists()){
file.mkdirs();
}
mRecorder = new MediaRecorder();
mRecorder.reset();
String manufacturer = Build.MANUFACTURER;
Log.d(TAG, manufacturer);
/*if (manufacturer.toLowerCase().contains("samsung")) {
mRecorder.setAudioSource(MediaRecorder.AudioSource.VOICE_COMMUNICATION);
} else {
mRecorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
}*/
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); //MIC | VOICE_COMMUNICATION | VOICE_RECOGNITION |
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); //THREE_GPP | MPEG_4
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); //AMR_NB | AAC
String mFilePath = file + "/" + "REC_" + number + "_" + new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()) + ".3gp"; //.3gp | .mp3
mRecorder.setOutputFile(mFilePath);
mRecorder.prepare();
mRecorder.start();
isStarted = true;
} catch (IOException e) {
e.printStackTrace();
}
}
private void stopRecording() {
if (isStarted && mRecorder != null) {
mRecorder.stop();
mRecorder.reset(); // You can reuse the object by going back to setAudioSource() step
mRecorder.release();
mRecorder = null;
isStarted = false;
}
}
}
public class MainActivity extends AppCompatActivity {
ArrayList<String> mArrayList;
MediaPlayer mPlayer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startService(this);
}
@Override
protected void onDestroy() {
super.onDestroy();
stopService(this);
}
private void startService(Context context) {
ContextCompat.startForegroundService(context, new Intent(context, CallForegroundService.class)); //ForegroundService
}
private void stopService(Context context) {
context.stopService(new Intent(context, CallForegroundService.class)); //ForegroundService
}
//RecyclerView.Adapter
private void getInternalStorageFiles() {
mArrayList = new ArrayList<>();
String path = getApplicationContext().getFilesDir().getPath();
String[] listOfFiles = getApplicationContext().getFilesDir().list();
Log.d(TAG, "Files: " + new Gson().toJson(listOfFiles));
if (listOfFiles != null) {
for (String fileName : listOfFiles) {
mArrayList.add(fileName+"/"+path));
}
}
}
private void playRecord(Record model) {
mPlayer = new MediaPlayer();
try {
FileInputStream mInputStream = new FileInputStream(mArrayList.get(i)); //i = for loop
mPlayer.setDataSource(mInputStream.getFD());
mInputStream.close();
mPlayer.prepare();
} catch (IOException e) {
e.printStackTrace();
}
mPlayer.start();
}
private void stopRecord() {
if (mPlayer != null) {
mPlayer.stop();
}
}
}
implementation 'pub.devrel:easypermissions:3.0.0'
<manifest>
<uses-permission android:name="android.permission.RECORD_AUDIO"/>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
<!-- AccessibilityService -->
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
<application>
<!-- Accessibility Service -->
<service android:name=".services.CallAccessibilityService"
android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE"
android:label="@string/accessibility_service_label">
<intent-filter>
<action android:name="android.accessibilityservice.AccessibilityService" />
</intent-filter>
<meta-data
android:name="android.accessibilityservice"
android:resource="@xml/accessibility_service_config" />
</service>
<application>
<?xml version="1.0" encoding="utf-8"?>
<accessibility-service
xmlns:android="http://schemas.android.com/apk/res/android"
android:accessibilityEventTypes="typeAllMask"
android:accessibilityFeedbackType="feedbackAllMask"
android:accessibilityFlags="flagDefault"
android:canRequestEnhancedWebAccessibility="true"
android:notificationTimeout="100"
android:packageNames="@null"
android:canRetrieveWindowContent="true"
android:canRequestTouchExplorationMode="true"
/>
public class MainActivity extends AppCompatActivity implements CallRecordAdapter.CallBackListener, EasyPermissions.PermissionCallbacks {
//Link: https://developer.android.com/guide/topics/media/mediarecorder?hl=en
private String[] PERMISSIONS = {
Manifest.permission.RECORD_AUDIO,
Manifest.permission.MODIFY_AUDIO_SETTINGS
};
private static final int CODE_DRAW_OVER_OTHER_APP_PERMISSION = 2084;
private static final int RC_APP_PERM = 124;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//-----------------------------------------------| List of Permissions
requestPermissions();
}
@AfterPermissionGranted(RC_APP_PERM)
private void requestPermissions() {
if (EasyPermissions.hasPermissions(this, PERMISSIONS)) {
// Already have permission, do the thing
onCheckPermissionOverOtherApp();
} else {
// Do not have permissions, request them now
EasyPermissions.requestPermissions(this, "This app needs access to your camera and mic to make video calls", RC_APP_PERM, PERMISSIONS);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
}
@Override
public void onPermissionsGranted(int requestCode, @NonNull List<String> perms) {
// Some permissions have been granted
onCheckPermissionOverOtherApp();
getInternalStorageFiles();
}
@Override
public void onPermissionsDenied(int requestCode, @NonNull List<String> perms) {
// Some permissions have been denied
}
//===============================================| On over other app | open the settings screen
private void onCheckPermissionOverOtherApp() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Settings.canDrawOverlays(this)) {
startActivityForResult(new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName())), CODE_DRAW_OVER_OTHER_APP_PERMISSION);
} else {
if (!isAccessibilitySettingsOn(getApplicationContext())) {
startActivity(new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS));
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK && requestCode == CODE_DRAW_OVER_OTHER_APP_PERMISSION) {
if (!isAccessibilitySettingsOn(getApplicationContext())) {
startActivity(new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS));
}
} else {
onCheckPermissionOverOtherApp();
Toast.makeText(this,"Draw over other app permission not available. Closing the application", Toast.LENGTH_SHORT).show();
}
}
// To check if service is enabled
public boolean isAccessibilitySettingsOn(Context mContext) {
int accessibilityEnabled = 0;
final String service = mContext.getPackageName() + "/" + CallAccessibilityService.class.getCanonicalName();
try {
accessibilityEnabled = Settings.Secure.getInt(mContext.getApplicationContext().getContentResolver(), Settings.Secure.ACCESSIBILITY_ENABLED);
Log.v(TAG, "accessibilityEnabled = " + accessibilityEnabled);
} catch (Settings.SettingNotFoundException e) {
Log.e(TAG, "Error finding setting, default accessibility to not found: " + e.getMessage());
}
TextUtils.SimpleStringSplitter mStringColonSplitter = new TextUtils.SimpleStringSplitter(':');
if (accessibilityEnabled == 1) {
Log.v(TAG, "***ACCESSIBILITY IS ENABLED*** -----------------");
String settingValue = Settings.Secure.getString(mContext.getApplicationContext().getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES);
if (settingValue != null) {
mStringColonSplitter.setString(settingValue);
while (mStringColonSplitter.hasNext()) {
String accessibilityService = mStringColonSplitter.next();
Log.v(TAG, "-------------- > accessibilityService :: " + accessibilityService + " " + service);
if (accessibilityService.equalsIgnoreCase(service)) {
Log.v(TAG, "We've found the correct setting - accessibility is switched on!");
return true;
}
}
}
} else {
Log.v(TAG, "***ACCESSIBILITY IS DISABLED***");
}
return false;
}
}
public class CallAccessibilityService extends AccessibilityService {
private static final String TAG = "MyAccessibilityService";
private FrameLayout mLayout;
private boolean isStarted;
private MediaRecorder mRecorder;
private View mView;
private WindowManager mWindowManager;
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
}
@Override
public void onInterrupt() {
}
@Override
protected void onServiceConnected() {
displayView();
}
private void displayView() {
//Inflate the floating view layout we created
mView = LayoutInflater.from(this).inflate(R.layout.action_bar, null);
//Add the view to the window.
final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) ? WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY : WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, // | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
PixelFormat.TRANSLUCENT);
//Specify the view position
params.gravity = Gravity.TOP | Gravity.LEFT; //Initially view will be added to top-left corner | Gravity.CENTER_VERTICAL|Gravity.END;
params.x = 0;
params.y = 100;
//Add the view to the window
mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
if (mWindowManager != null) {
mWindowManager.addView(mView, params);
}
((ImageButton) mView.findViewById(R.id.btnClose)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//Open the application click.
Intent intent = new Intent(CallAccessibilityService.this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
//close the service and remove view from the view hierarchy
stopSelf();
}
});
((ImageButton) mView.findViewById(R.id.btnStartRecording)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startRecording();
Toast.makeText(CallAccessibilityService.this, "Playing", Toast.LENGTH_SHORT).show();
}
});
((ImageButton) mView.findViewById(R.id.btnStopRecording)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
stopRecording();
Toast.makeText(CallAccessibilityService.this, "Stopping", Toast.LENGTH_SHORT).show();
}
});
//Drag and move floating view using user's touch action.
((ImageButton) mView.findViewById(R.id.draggable_button)).setOnTouchListener(new View.OnTouchListener() {
private int initialX;
private int initialY;
private float initialTouchX;
private float initialTouchY;
@Override
public boolean onTouch(View v, MotionEvent event) {
//params.x = (int) event.getX();
//params.y = (int) event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
//remember the initial position.
initialX = params.x;
initialY = params.y;
//get the touch location
initialTouchX = event.getRawX();
initialTouchY = event.getRawY();
return true;
case MotionEvent.ACTION_UP:
int xDiff = (int) (event.getRawX() - initialTouchX);
int yDiff = (int) (event.getRawY() - initialTouchY);
//The check for Xdiff <10 && YDiff< 10 because sometime elements moves a little while clicking.
//So that is click event.
if (xDiff < 10 && yDiff < 10) {
Toast.makeText(CallAccessibilityService.this, "ACTION_UP", Toast.LENGTH_SHORT).show();
}
return true;
case MotionEvent.ACTION_MOVE:
//Calculate the X and Y coordinates of the view.
params.x = initialX + (int) (event.getRawX() - initialTouchX);
params.y = initialY + (int) (event.getRawY() - initialTouchY);
//Update the layout with new X & Y coordinate
mWindowManager.updateViewLayout(mView, params);
return true;
}
return false;
}
});
}
@Override
public void onDestroy() {
super.onDestroy();
if (mView != null) mWindowManager.removeView(mView);
}
public void startRecording() {
try {
String path = getApplicationContext().getFilesDir().getPath();
//String selectedPath = Environment.getExternalStorageDirectory() + "/Testing";
//String selectedPath = Environment.getExternalStorageDirectory().getAbsolutePath() +"/Android/data/" + packageName + "/system_sound";
File file = new File(path);
if (!file.exists()){
file.mkdirs();
}
mRecorder = new MediaRecorder();
mRecorder.reset();
//android.permission.RECORD_AUDIO
String manufacturer = Build.MANUFACTURER;
Log.d(TAG, manufacturer);
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); //MIC | VOICE_COMMUNICATION (Android 10 release) | VOICE_RECOGNITION | (VOICE_CALL = VOICE_UPLINK + VOICE_DOWNLINK)
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); //THREE_GPP | MPEG_4
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); //AMR_NB | AAC
String mFilePath = file + "/" + "REC_" + new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()) + ".3gp"; //.3gp | .mp3
mRecorder.setOutputFile(mFilePath);
mRecorder.prepare();
mRecorder.start();
isStarted = true;
} catch (IOException e) {
e.printStackTrace();
}
}
public void stopRecording() {
if (isStarted && mRecorder != null) {
mRecorder.stop();
mRecorder.reset(); // You can reuse the object by going back to setAudioSource() step
mRecorder.release();
mRecorder = null;
isStarted = false;
}
}
}
}