Android Audio Recording -


i'm trying develop android app need user voice recording. see many code nothing work me.it open didn't record anything.

here code: 

package com.example.record8;  import java.io.file; import java.io.ioexception;  import android.app.activity; import android.content.contentresolver; import android.content.contentvalues; import android.content.intent; import android.media.mediarecorder; import android.net.uri; import android.os.bundle; import android.os.environment; import android.provider.mediastore; import android.util.log; import android.view.view; import android.widget.toast;  public class mainactivity extends activity {  mediarecorder recorder; file audiofile = null; private static final string tag = "soundrecordingactivity"; private view startbutton; private view stopbutton;  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     startbutton = findviewbyid(r.id.btnstart);     stopbutton = findviewbyid(r.id.btnstop); }  public void startrecording(view view) throws ioexception {      startbutton.setenabled(false);     stopbutton.setenabled(true);      file sampledir = environment.getexternalstoragedirectory();     try {         audiofile = file.createtempfile("sound", ".3gp", sampledir);     } catch (ioexception e) {         log.e(tag, "sdcard access error");         return;     }     recorder = new mediarecorder();     recorder.setaudiosource(mediarecorder.audiosource.mic);     recorder.setoutputformat(mediarecorder.outputformat.three_gpp);     recorder.setaudioencoder(mediarecorder.audioencoder.amr_nb);     recorder.setoutputfile(audiofile.getabsolutepath());     recorder.prepare();     recorder.start(); }  public void stoprecording(view view) {     startbutton.setenabled(true);     stopbutton.setenabled(false);     recorder.stop();     recorder.release();     addrecordingtomedialibrary(); }  protected void addrecordingtomedialibrary() {     contentvalues values = new contentvalues(4);     long current = system.currenttimemillis();     values.put(mediastore.audio.media.title, "audio" + audiofile.getname());     values.put(mediastore.audio.media.date_added, (int) (current / 1000));     values.put(mediastore.audio.media.mime_type, "audio/3gpp");     values.put(mediastore.audio.media.data, audiofile.getabsolutepath());     contentresolver contentresolver = getcontentresolver();      uri base = mediastore.audio.media.external_content_uri;     uri newuri = contentresolver.insert(base, values);      sendbroadcast(new intent(intent.action_media_scanner_scan_file, newuri));     toast.maketext(this, "added file " + newuri, toast.length_long).show(); }  }

here xml:

 <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingbottom="@dimen/activity_vertical_margin" android:paddingleft="@dimen/activity_horizontal_margin" android:paddingright="@dimen/activity_horizontal_margin" android:paddingtop="@dimen/activity_vertical_margin" tools:context=".mainactivity" >  <textview     android:id="@+id/textview1"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text="@string/hello_world" />  <button     android:id="@+id/btnstart"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignleft="@+id/textview1"     android:layout_below="@+id/textview1"     android:layout_marginleft="45dp"     android:layout_margintop="48dp"     android:text="@string/startrecording" />  <button     android:id="@+id/btnstop"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignleft="@+id/btnstart"     android:layout_below="@+id/btnstart"     android:layout_margintop="52dp"     android:text="@string/stoprecording" />  <button     android:id="@+id/btnformat"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_below="@+id/btnstop"     android:layout_centerhorizontal="true"     android:layout_margintop="75dp"     android:text="@string/audio_format" />

i don't know why dosen't record.

you can check link,

http://androidcodeexamples.blogspot.in/2012/06/voice-recording-in-android.html

i have implemented audio recording blog , it's working fine also.

and make sure have below 2 permission in android manifest file while implementing this.

<uses-permission android:name="android.permission.record_audio"/> <uses-permission android:name="android.permission.write_external_storage"/>

also can download source code visiting below link

https://www.dropbox.com/s/rhcswyht20xhud2/android%20audio%20recording.zip

hope you.


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