Android MediaRecorder is throwing IllegalStateException -

i trying develop simple android video recorder. have created custom surfaceview mediarecoder handle recording. builds fine , runs fine on android device. when call startrecording(), giving me illegalstateexception. here code:

package my.android.video;  import android.media.mediarecorder; import android.view.surfaceview; import android.view.surfaceholder; import android.util.log; import java.lang.illegalargumentexception; import java.lang.illegalstateexception; import java.io.ioexception; import android.content.context;   public class recorderview  extends surfaceview implements surfaceholder.callback {     private mediarecorder mediarecorder;   public recorderview(context context) {     super(context);     surfaceholder holder = getholder();     holder.addcallback(this);     holder.settype(surfaceholder.surface_type_push_buffers);     holder.setfixedsize(400, 300);   }  @override public void surfacecreated(surfaceholder holder) {   if (mediarecorder == null) {     try {             mediarecorder=new mediarecorder();             mediarecorder.setaudiosource(mediarecorder.audiosource.mic);             mediarecorder.setvideosource(mediarecorder.videosource.camera);             mediarecorder.setoutputformat(mediarecorder.outputformat.default);             mediarecorder.setaudioencoder(mediarecorder.audioencoder.default);             mediarecorder.setvideoencoder(mediarecorder.videoencoder.default);             mediarecorder.setoutputfile("/sdcard/myoutputfile.mp4");             mediarecorder.setpreviewdisplay(holder.getsurface());             mediarecorder.prepare();         } catch (illegalargumentexception e) {             log.d("media_player", e.getmessage());         } catch (illegalstateexception e) {             log.d("media_player", e.getmessage());         } catch (ioexception e) {             log.d("media_player", e.getmessage());         }     } }  @override public void surfacedestroyed(surfaceholder holder) {     mediarecorder.release(); }      @override public void surfacechanged(surfaceholder holder, int format, int width, int height) {     // todo  }  public void startrecording() {     mediarecorder.start(); }  public void stoprecording() {     mediarecorder.stop();     } } 

edit

logcat output

    i/activitymanager(  107): starting activity: intent { act=android.intent.action.main cat=[android.intent.category.launcher] flg=0x10200000 cmp=my.android.video/.videorecorder } i/activitymanager(  107): start proc my.android.video activity my.android.video/.videorecorder: pid=1534 uid=10098 gids={1015} i/windowmanager(  107): setting rotation 1, animflags=1 i/activitymanager(  107): config changed: { scale=1.0 imsi=310/120 loc=en_us touch=3 keys=1/1/2 nav=1/1 orien=2 layout=34 uimode=17 seq=18} w/inputmanagerservice(  107): ignoring hidesoftinput of: com.android.internal.view.iinputmethodclient$stub$proxy@4620e0d8 i/windowmanager(  107): setting rotation 0, animflags=0 i/activitymanager(  107): config changed: { scale=1.0 imsi=310/120 loc=en_us touch=3 keys=1/1/2 nav=1/1 orien=1 layout=34 uimode=17 seq=19} i/usagestats(  107): unexpected resume of my.android.video while resumed in my.android.video i/windowmanager(  107): setting rotation 1, animflags=0 i/activitymanager(  107): config changed: { scale=1.0 imsi=310/120 loc=en_us touch=3 keys=1/1/2 nav=1/1 orien=2 layout=34 uimode=17 seq=20} i/usagestats(  107): unexpected resume of my.android.video while resumed in my.android.video e/androidruntime( 1534): fatal exception: main e/androidruntime( 1534): java.lang.illegalstateexception e/androidruntime( 1534):        @ android.media.mediarecorder.start(native method) e/androidruntime( 1534):        @ my.android.video.recorderview.startrecording(recorderview.java:62) e/androidruntime( 1534):        @ my.android.video.videorecorder$1.onclick(videorecorder.java:40) e/androidruntime( 1534):        @ android.view.view.performclick(view.java:2408) e/androidruntime( 1534):        @ android.view.view$performclick.run(view.java:8817) e/androidruntime( 1534):        @ android.os.handler.handlecallback(handler.java:587) e/androidruntime( 1534):        @ android.os.handler.dispatchmessage(handler.java:92) e/androidruntime( 1534):        @ android.os.looper.loop(looper.java:144) e/androidruntime( 1534):        @ android.app.activitythread.main(activitythread.java:4937) e/androidruntime( 1534):        @ java.lang.reflect.method.invokenative(native method) e/androidruntime( 1534):        @ java.lang.reflect.method.invoke(method.java:521) e/androidruntime( 1534):        @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:868) e/androidruntime( 1534):        @ com.android.internal.os.zygoteinit.main(zygoteinit.java:626) e/androidruntime( 1534):        @ dalvik.system.nativestart.main(native method) w/activitymanager(  107):   force finishing activity my.android.video/.videorecorder w/activitymanager(  107): activity pause timeout historyrecord{462016f0 my.android.video/.videorecorder} i/windowmanager(  107): setting rotation 0, animflags=1 i/activitymanager(  107): config changed: { scale=1.0 imsi=310/120 loc=en_us touch=3 keys=1/1/2 nav=1/1 orien=1 layout=34 uimode=17 seq=21} d/pendingintent(  236): pendingintent getbroadcast intent string =com.htc.htccalendarwidgets.mywidgetview4110120 d/pendingintent(  236): pendingintent getbroadcast returnpendingintent packagename =com.htc.launcher v/alarmmanager(  107): adding alarm{4614d4d0 type 0 com.htc.launcher} feb 24 12:00:00 i/windowmanager(  107): win death: window{462ec3b0 my.android.video/my.android.video.videorecorder paused=false} i/activitymanager(  107): process my.android.video (pid 1534) has died. w/activitymanager(  107): activity destroy timeout historyrecord{462016f0 my.android.video/.videorecorder} 

i not able figure out problem new android programming.

the problem can parameters passing preview surface. in line:

holder.setfixedsize(400,300) 

try passing other parameters eg. (320, 240)

also, make sure preview surface accessible, before call setpreviewsurface made.