Android :: LVL Sample Application
Aug 2, 2010
I've followed the instructions for loading the sample LVL application and it loads up with a bunch of errors. Anywhere that a "R.layout.main" or "R.*" request is made it says R cannot be resolved. It suggests importing Android.R but if I do that then it says it can't find any of the files, including the R.layout.main file which is definitely there.What gives? I have had several problems with sample applications so far, am I doing something wrong? You'd think that all you have to do is import it from existing source and it should work.
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Nov 15, 2010
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Nov 8, 2009
The code seems no problem when I run it, but it stop unexpectedly in the emulator. I read some answer in the forum, It has to look at the logcat to see about the exception handler. But I do not really understand the logcat output. Please, developers, help me!. Below are the coding and my logcat output.
package com.example.testing; import android.app.Activity; import android.media.MediaPlayer; import android.os.Bundle; import android.util.Log; import android.widget.TextView; import android.widget.Toast; import com.example.testing.R;
public class testing extends Activity {
private static final String TAG = "MediaPlayerDemo";
private MediaPlayer mMediaPlayer;
private static final String MEDIA = "media";
private static final int LOCAL_AUDIO = 1;
private static final int STREAM_AUDIO = 2;
private static final int RESOURCES_AUDIO = 3;
private static final int LOCAL_VIDEO = 4;
private static final int STREAM_VIDEO = 5;
private String path;
private TextView tx;
@Override public void onCreate(Bundle icicle) {super.onCreate(icicle);
tx = new TextView(this);setContentView(tx);Bundle extras = getIntent().getExtras()
playAudio(extras.getInt(MEDIA));}
private void playAudio(Integer media)
{try {switch (media){case LOCAL_AUDIO:/**
* TODO: Set the path variable to a local audio file path.*/path = "/res/raw/test1";
if (path == "") {// Tell the user to provide an audio file URL.Toast.makeText(testing.this
"Please edit MediaPlayer_Audio Activity, "
+ "and set the path variable to your audio file path."
+ " Your audio file must be stored on sdcard.",Toast.LENGTH_LONG).show(); }
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(path);
mMediaPlayer.prepare();
mMediaPlayer.start();
break;case RESOURCES_AUDIO:/**
* TODO: Upload a audio file to res/raw folder and provide
* its resid in MediaPlayer.create() method.*/
mMediaPlayer = MediaPlayer.create(this, R.raw.test1);
mMediaPlayer.start();}
tx.setText("Playing audio...");}
catch (Exception e) {Log.e(TAG, "error: " + e.getMessage(), e);}}
@Override protected void onDestroy() {super.onDestroy();
// TODO Auto-generated method stub if (mMediaPlayer != null) { mMediaPlayer.release();mMediaPlayer = null;}}}
LOGCAT OUTPUT 11-08 06:40:03.647: INFO/DEBUG(539): debuggerd: Jun 30 2009 17:00:51 11-08 06:40:03.659: INFO/vold(538): Android Volume Daemon version 2.0 11-08 06:40:03.678: ERROR/vold(538): Error opening switch name path '/ sys/class/switch/test2' (No such file or directory) 11-08 06:40:03.678: ERROR/vold(538): Error bootstrapping switch '/sys/ class/switch/test2' (m) 11-08 06:40:03.678: ERROR/vold(538): Error opening switch name path '/ sys/class/switch/test' (No such file or directory) 11-08 06:40:03.678: ERROR/vold(538): Error bootstrapping switch '/sys/ class/switch/test' (m) 11-08 06:40:03.678: DEBUG/vold(538): Bootstrapping complete 11-08 06:40:03.817: ERROR/flash_image(544): can't find recovery partition 11-08 06:40:03.918: DEBUG/qemud(546): entering main loop 11-08 06:40:04.588: DEBUG/AndroidRuntime(541): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<< 11-08 06:40:04.588: DEBUG/AndroidRuntime(541): CheckJNI is ON 11-08 06:40:04.828: DEBUG/qemud(546): fdhandler_accept_event: accepting on fd 10 11-08 06:40:04.828: DEBUG/qemud(546): created client 0xe078 listening on fd 8 11-08 06:40:04.828: DEBUG/qemud(546): fdhandler_event: disconnect on fd 8 11-08 06:40:04.877: DEBUG/qemud(546): fdhandler_accept_event: accepting on fd 10 11-08 06:40:04.877: DEBUG/qemud(546): created client 0xf028 listening on fd 8 11-08 06:40:04.877: DEBUG/qemud(546): client_fd_receive: attempting registration for service 'gsm' 11-08 06:40:04.877: DEBUG/qemud(546): client_fd_receive: -> received channel id 1 11-08 06:40:04.887: DEBUG/qemud(546): client_registration: registration succeeded for client 1 11-08 06:40:05.108: INFO/(542): ServiceManager: 0xac38 11-08 06:40:05.127: INFO/AudioFlinger(542): AudioFlinger's thread ready to run for output 0 11-08 06:40:05.147: INFO/CameraService(542): CameraService started: pid=542 11-08 06:40:05.207: DEBUG/AndroidRuntime(541): --- registering native functions --- 11-08 06:40:05.528: INFO/Zygote(541): Preloading classes... 11-08 06:40:05.538: DEBUG/dalvikvm(541): GC freed 764 objects / 42216 bytes in 10ms 11-08 06:40:05.717: DEBUG/dalvikvm(541): GC freed 278 objects / 17160 bytes in 4ms 11-08 06:40:05.897: DEBUG/dalvikvm(541): GC freed 208 objects / 12696 bytes in 5ms 11-08 06:40:05.967: DEBUG/dalvikvm(541): Trying to load lib /system/ lib/libmedia_jni.so 0x0 11-08 06:40:06.107: DEBUG/dalvikvm(541): Added shared lib /system/lib/ libmedia_jni.so 0x0 11-08 06:40:06.107: DEBUG/dalvikvm(541): Trying to load lib /system/ lib/libmedia_jni.so 0x0 11-08 06:40:06.107: DEBUG/dalvikvm(541): Shared lib '/system/lib/ libmedia_jni.so' already loaded in same CL 0x0 11-08 06:40:06.107: DEBUG/dalvikvm(541): Trying to load lib /system/ lib/libmedia_jni.so 0x0 11-08 06:40:06.107: DEBUG/dalvikvm(541): Shared lib '/system/lib/ libmedia_jni.so' already loaded in same CL 0x0 11-08 06:40:06.107: DEBUG/dalvikvm(541): Trying to load lib /system/ lib/libmedia_jni.so 0x0 11-08 06:40:06.107: DEBUG/dalvikvm(541): Shared lib '/system/lib/ libmedia_jni.so' already loaded in same CL 0x0 11-08 06:40:06.119: DEBUG/dalvikvm(541): GC freed 462 objects / 29144 bytes in 6ms 11-08 06:40:06.527: DEBUG/dalvikvm(541): GC freed 3584 objects / 171648 bytes in 17ms 11-08 06:40:07.699: DEBUG/dalvikvm(541): GC freed 11329 objects / 400856 bytes in 27ms 11-08 06:40:08.007: DEBUG/dalvikvm(541): GC freed 10472 objects / 438272 bytes in 28ms 11-08 06:40:08.327: DEBUG/dalvikvm(541): GC freed 10975 objects / 459800 bytes in 33ms 11-08 06:40:09.327: DEBUG/dalvikvm(541): GC freed 14372 objects / 506896 bytes in 36ms 11-08 06:40:09.658: DEBUG/dalvikvm(541): GC freed 11314 objects / 481360 bytes in 36ms 11-08 06:40:09.847: DEBUG/dalvikvm(541): GC freed 5928 objects / 248640 bytes in 30ms 11-08 06:40:10.027: DEBUG/dalvikvm(541): GC freed 349 objects / 37032 bytes in 24ms 11-08 06:40:10.228: DEBUG/dalvikvm(541): GC freed 778 objects / 48376 bytes in 33ms 11-08 06:40:10.327: DEBUG/dalvikvm(541): GC freed 321 objects / 37288 bytes in 34ms 11-08 06:40:10.757: DEBUG/dalvikvm(541): GC freed 477 objects / 29584 bytes in 34ms 11-08 06:40:10.788: DEBUG/dalvikvm(541): Trying to load lib /system/ lib/libwebcore.so 0x0 11-08 06:40:10.869: DEBUG/dalvikvm(541): Added shared lib /system/lib/ libwebcore.so 0x0 11-08 06:40:11.048: DEBUG/dalvikvm(541): GC freed 441 objects / 26224 bytes in 35ms 11-08 06:40:11.147: DEBUG/dalvikvm(541): GC freed 506 objects / 41464 bytes in 33ms 11-08 06:40:11.248: DEBUG/dalvikvm(541): GC freed 537 objects / 38832 bytes in 38ms 11-08 06:40:11.368: DEBUG/dalvikvm(541): GC freed 342 objects / 22552 bytes in 35ms 11-08 06:40:11.457: DEBUG/dalvikvm(541): GC freed 338 objects / 18736 bytes in 38ms 11-08 06:40:11.567: DEBUG/dalvikvm(541): GC freed 629 objects / 32136 bytes in 36ms 11-08 06:40:12.518: DEBUG/dalvikvm(541): GC freed 14257 objects / 497280 bytes in 57ms 11-08 06:40:12.868: DEBUG/dalvikvm(541): GC freed 11164 objects / 469576 bytes in 53ms 11-08 06:40:13.188: DEBUG/dalvikvm(541): GC freed 7134 objects / 311424 bytes in 55ms 11-08 06:40:13.357: DEBUG/dalvikvm(541): GC freed 752 objects / 43224 bytes in 41ms 11-08 06:40:13.449: DEBUG/dalvikvm(541): GC freed 598 objects / 31496 bytes in 43ms 11-08 06:40:13.558: DEBUG/dalvikvm(541): GC freed 413 objects / 26336 bytes in 43ms 11-08 06:40:13.597: INFO/Zygote(541): ...preloaded 1166 classes in 8066ms. 11-08 06:40:13.648: DEBUG/dalvikvm(541): GC freed 313 objects / 19952 bytes in 46ms 11-08 06:40:13.648: INFO/Zygote(541): Preloading resources... 11-08 06:40:13.707: DEBUG/dalvikvm(541): GC freed 54 objects / 11248 bytes in 43ms 11-08 06:40:14.118: DEBUG/dalvikvm(541): GC freed 337 objects / 15008 bytes in 46ms 11-08 06:40:14.338: DEBUG/dalvikvm(541): GC freed 280 objects / 11768 bytes in 44ms 11-08 06:40:14.368: INFO/Zygote(541): ...preloaded 48 resources in 712ms. 11-08 06:40:14.397: INFO/Zygote(541): ...preloaded 15 resources in 23ms. 11-08 06:40:14.448: DEBUG/dalvikvm(541): GC freed 117 objects / 8448 bytes in 50ms 11-08 06:40:14.498: DEBUG/dalvikvm(541): GC freed 205 objects / 8104 bytes in 45ms 11-08 06:40:14.557: DEBUG/dalvikvm(541): GC freed 36 objects / 1400 bytes in 53ms 11-08 06:40:14.567: INFO/dalvikvm(541): Splitting out new zygote heap 11-08 06:40:14.588: INFO/dalvikvm(541): System server process 569 has been created 11-08 06:40:14.597: INFO/Zygote(541): Accepting command socket connections 11-08 06:40:14.651: INFO/jdwp(569): received file descriptor 10 from ADB 11-08 06:40:14.727: WARN/System.err(569): Can't dispatch DDM chunk 4d505251: no handler...
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