我正在尝试使用媒体记录录制来电。在Android 5上录制完美但在android 4.2上我在recorder.start()
我已将persmissions定义为：READ_PHONE_STATE，RECORD_VIDEO，RECORD_AUDIO
有人帮忙吗？
我的广播接收器代码：
public class PhoneStateChangeReceiver extends BroadcastReceiver {
//The receiver will be recreated whenever android feels like it. We need a static variable to remember data between instantiations
private static int lastState = TelephonyManager.CALL_STATE_IDLE;
private static Date callStartTime;
private static boolean isIncoming;
private static String savedNumber; //because the passed incoming is only valid in ringing
private static MediaRecorder recorder;
private static long RecordingStartedTime = 0;
private static Context Context;
private static Configuration Config;
private static boolean Recording = false;
public void dropRecording() {
try {
Recording = false;
long EndTime = System.currentTimeMillis();
long Duration = EndTime - callStartTime.getTime();
// record to database
FileRecords fileRecords = new FileRecords(Context);
fileRecords.record(callStartTime.getTime(),
EndTime,
Duration,
Context.getFilesDir() + "/" + RecordingStartedTime + ".3gp",
0,
FileRecords.TYPE.THREEGP,
savedNumber);
if(recorder != null) {
recorder.stop();
recorder.release();
}
} catch (Exception e) {
Logs.Put(e, Context);
}
}
private void StartRecording() {
try {
RecordingStartedTime = System.currentTimeMillis();
try {
recorder.stop();
recorder.reset();
recorder.release();
} catch(Exception e) {
}
recorder = new MediaRecorder();
String FileName = Context.getFilesDir() + "/" + RecordingStartedTime + ".3gp";
recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioChannels(1);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(FileName);
recorder.setMaxFileSize(Config.MaxRecordFileSize() * 1024 * 1024);
recorder.setMaxDuration(Config.MaxRecordTime());
recorder.setOnErrorListener(new MediaRecorder.OnErrorListener() {
@Override
public void onError(MediaRecorder mr, int what, int extra) {
Logs.Put("mediarecorder error:" + Integer.toString(what) + " extra" + Integer.toString(extra), Context);
dropRecording();
}
});
recorder.setOnInfoListener(new MediaRecorder.OnInfoListener() {
@Override
public void onInfo(MediaRecorder mr, int what, int extra) {
if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED) {
Logs.Put("mediarecorder error:" + Integer.toString(what) + " extra" + Integer.toString(extra), Context);
dropRecording();
}
}
});
recorder.setAudioEncodingBitRate(Config.AudioBitRateQuality());
recorder.prepare();
recorder.start();
Recording = true;
} catch (Exception e) {
Logs.Put(e, Context);
try {
RecordingStartedTime = System.currentTimeMillis();
try {
recorder.stop();
recorder.reset();
recorder.release();
} catch(Exception ex) {
}
recorder = new MediaRecorder();
String FileName = Context.getFilesDir() + "/" + RecordingStartedTime + ".3gp";
recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioChannels(1);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(FileName);
recorder.setMaxFileSize(Config.MaxRecordFileSize() * 1024 * 1024);
recorder.setMaxDuration(Config.MaxRecordTime());
recorder.setOnErrorListener(new MediaRecorder.OnErrorListener() {
@Override
public void onError(MediaRecorder mr, int what, int extra) {
Logs.Put("mediarecorder error:" + Integer.toString(what) + " extra" + Integer.toString(extra), Context);
dropRecording();
}
});
recorder.setOnInfoListener(new MediaRecorder.OnInfoListener() {
@Override
public void onInfo(MediaRecorder mr, int what, int extra) {
if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED || what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED) {
Logs.Put("mediarecorder error:" + Integer.toString(what) + " extra" + Integer.toString(extra), Context);
dropRecording();
}
}
});
recorder.setAudioEncodingBitRate(Config.AudioBitRateQuality());
recorder.prepare();
recorder.start();
Recording = true;
} catch (Exception ex) {
Logs.Put(ex, Context);
}
}
}
@Override
public void onReceive(Context context, Intent intent) {
Context = context;
Config = new Configuration(context);
if(!Config.RecordCalls())
return;
//We listen to two intents. The new outgoing call only tells us of an outgoing call. We use it to get the number.
if (intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
}
else{
String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
int state = 0;
if(stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)){
state = TelephonyManager.CALL_STATE_IDLE;
}
else if(stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){
state = TelephonyManager.CALL_STATE_OFFHOOK;
}
else if(stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)){
state = TelephonyManager.CALL_STATE_RINGING;
}
onCallStateChanged(context, state, number);
}
}
//Derived classes should override these to respond to specific events of interest
protected void onIncomingCallStarted(Context ctx, String number, Date start){
StartRecording();
}
protected void onOutgoingCallStarted(Context ctx, String number, Date start){
StartRecording();
}
protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end){
dropRecording();
}
protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end){
dropRecording();
}
protected void onMissedCall(Context ctx, String number, Date start){
// do nothing;
}
//Deals with actual events
//Incoming call- goes from IDLE to RINGING when it rings, to OFFHOOK when it's answered, to IDLE when its hung up
//Outgoing call- goes from IDLE to OFFHOOK when it dials out, to IDLE when hung up
public void onCallStateChanged(Context context, int state, String number) {
if(lastState == state){
//No change, debounce extras
return;
}
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
// ringing do nothing
savedNumber = number;
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
//Transition of ringing->offhook are pickups of incoming calls. Nothing done on them
if(lastState != TelephonyManager.CALL_STATE_RINGING){
isIncoming = false;
callStartTime = new Date();
onOutgoingCallStarted(context, savedNumber, callStartTime);
} else {
isIncoming = true;
callStartTime = new Date();
onIncomingCallStarted(context, number, callStartTime);
}
break;
case TelephonyManager.CALL_STATE_IDLE:
//Went to idle- this is the end of a call. What type depends on previous state(s)
if(lastState == TelephonyManager.CALL_STATE_RINGING){
//Ring but no pickup- a miss
onMissedCall(context, savedNumber, callStartTime);
}
else if(isIncoming){
onIncomingCallEnded(context, savedNumber, callStartTime, new Date());
}
else{
onOutgoingCallEnded(context, savedNumber, callStartTime, new Date());
}
break;
}
lastState = state;
}
}