尝试录音时,我使用MediaRecorder类
。当使用AudioSource.MIC
或AudioSource.VOICE_COMMUNICATION
时,只录制了我的声音而不是接收者的声音。当我使用AudioSource.VOICE_CALL
时,在接听电话时会出现异常。以下是代码:
if(intent.getAction().equals("android.intent.action.PHONE_STATE")){
if((bundle = intent.getExtras()) != null){
state = bundle.getString(TelephonyManager.EXTRA_STATE);
if(state.equals(TelephonyManager.EXTRA_STATE_RINGING)){
inCall = bundle.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
wasRinging = true;
Toast.makeText(context, inCall + " is calling", Toast.LENGTH_SHORT).show();
}
else if(state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){
if(wasRinging){
Toast.makeText(context, "Call Answered", Toast.LENGTH_SHORT).show();
Date date = new Date();
SimpleDateFormat format = new SimpleDateFormat("dd-MM-yyyy_HH-mm-ss");
String filename = "rec_" + format.format(date) + ".mp3";
String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC).getPath();
String fileUri = path + "/" + filename;
Log.v("testing uri", fileUri);
File file = new File(fileUri);
recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
recorder.setOutputFile(file.getAbsolutePath());
try {
recorder.prepare();
recorder.start();
recording = true;
} catch (IOException e) {
e.printStackTrace();
}
}
}
else if(state.equals(TelephonyManager.EXTRA_STATE_IDLE)){
wasRinging = false;
Toast.makeText(context, "Cancelled", Toast.LENGTH_SHORT).show();
if(recording && recorder != null){
recorder.stop();
recorder = null;
recording = false;
}
}
}
}
这是一个错误信息...
java.lang.RuntimeException: Error receiving broadcast Intent { act=android.intent.action.PHONE_STATE flg=0x10 (has extras) } in com.asadullah.callrecorder.MyBroadCastReceiver@41d6c7a8
at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:778)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5102)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: start failed.
at android.media.MediaRecorder.start(Native Method)
at com.asadullah.callrecorder.MyBroadCastReceiver.onReceive(MyBroadCastReceiver.java:62)
at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:768)
清单权限包括:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.STORAGE" />
VOICE_COMMUNICATION
录制通话,但它只记录来自麦克风的声音,而不是扬声器发出的声音。有什么建议吗? - Siddharth Mehra