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POPlaying audio files continously from a directory
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copied!<p>I am using the following code to play audio files continuously from a directory in sdcard. </p> <p>The problem I am facing is all the files are playing at a time. I need to play one after another.</p> <pre><code>mPlay.setOnClickListener(new OnClickListener(){ @Override public void onClick(View v) { // TODO Auto-generated method stub getFiles(); } private void getFiles() { // TODO Auto-generated method stub File dir = new File("/sdcard/sdcard"); int index=0; String[] children = dir.list(); for(int i=0;i<children.length;i++) { String filename=children[i]; playAudio(filename); } } private void playAudio(String filename) { // TODO Auto-generated method stub mPlayer = new MediaPlayer(); try { mPlayer.setDataSource(filename); } catch (IllegalArgumentException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (IllegalStateException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } try { mPlayer.prepare(); } catch (IllegalStateException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } mPlayer.start(); mSeekBar.setMax(mPlayer.getDuration()); new Thread(new Runnable(){ @Override public void run() { // TODO Auto-generated method stub while(mPlayer!=null && mPlayer.getCurrentPosition() <mPlayer.getDuration()) { Log.d("Indide Run Method",Integer.toString(mPlayer.getCurrentPosition())); try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } mSeekBar.setProgress(mPlayer.getCurrentPosition()); } } } ).start(); mSeekBar.setProgress(mPlayer.getCurrentPosition()); pauseRecord.setVisibility(View.INVISIBLE); } }); </code></pre> <p>How can solve the problem? </p> <pre><code>05-24 18:34:19.455: DEBUG/MediaPlayer(19961): at dalvik.system.NativeStart.main(Native Method) 05-24 18:34:19.465: WARN/dalvikvm(19961): threadid=3: thread exiting with uncaught exception (group=0x2aadda10) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): Uncaught handler: thread main exiting due to uncaught exception **05-24 18:34:19.465: ERROR/AndroidRuntime(19961): java.lang.NullPointerException 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.fsp.audio.resume.AudioResume.playChild(AudioResume.java:402) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.fsp.audio.resume.AudioResume.playlist(AudioResume.java:393) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.fsp.audio.resume.AudioResume.access$0(AudioResume.java:391) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.fsp.audio.resume.AudioResume$1.onClick(AudioResume.java:132) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.View.performClick(View.java:2347) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.View.onTouchEvent(View.java:4185) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.widget.TextView.onTouchEvent(TextView.java:6521) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.View.dispatchTouchEvent(View.java:3717)** 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1712) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1202) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.app.Activity.dispatchTouchEvent(Activity.java:1987) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1696) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.view.ViewRoot.handleMessage(ViewRoot.java:1659) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.os.Handler.dispatchMessage(Handler.java:99) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.os.Looper.loop(Looper.java:123) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at android.app.ActivityThread.main(ActivityThread.java:4203) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at java.lang.reflect.Method.invokeNative(Native Method) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at java.lang.reflect.Method.invoke(Method.java:521) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:799) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 05-24 18:34:19.465: ERROR/AndroidRuntime(19961): at dalvik.system.NativeStart.main(Native Method) 05-24 18:34:21.435: ERROR/dun_service(19989): Unable to open external port /dev/ttyHSUSB0 : No such device 05-24 18:34:26.465: ERROR/dun_service(19991): Unable to open external port /dev/ttyHSUSB0 : No such device 05-24 18:34:31.495: ERROR/dun_service(19993): Unable to open external port /dev/ttyHSUSB0 : No such device 05-24 18:34:36.525: ERROR/dun_service(19995): Unable to open external port /dev/ttyHSUSB0 : No such device </code></pre>

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