zxing integrazione – errore della camera

sto lavorando su un'applicazione Android con l'integrazione dello scanner del codice a barre zxing. è un'anteprima della telecamera con un button che inizia il lettore di codici a barre. ( Ho usato questo )

L'applicazione funziona bene, ma solo la prima scansione. Quando voglio eseguire un'altra scansione: errore della videocamera occere: screenshot qui

  • Seleziona più immagini dalla gallery di android
  • Impostare il listener OnClick sul titolo della barra d'azione in Android
  • Android: Come caricare dynamicmente l'image dal server dal suo nome da SQlite
  • È ansible impostare System DateTime dal mio Android App?
  • Come posso impostare LIMIT nella query in Realm?
  • Rimozione dell'imbottitura del button di image (Android)
  • Quando riavvii il telefono, ancora solo la prima scansione funziona.

    Qualcuno può aiutare a favore? Im principiante (e mi dispiace per il mio inglese)

    **class Preview** @Override public void surfaceCreated(SurfaceHolder holder) { camera = Camera.open(); } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) { if (previewing) { camera.stopPreview(); camera.setPreviewCallback(null); previewing=false; } try { camera.setPreviewDisplay(holder); camera.startPreview(); previewing = true; } catch(Exception e) { } } @Override public void surfaceDestroyed(SurfaceHolder holder) { if (camera != null) { camera.stopPreview(); camera.setPreviewCallback(null); camera.release(); camera = null; previewing=false; } } } 

    Overlay di class

     public class Overlay extends Activity { Button mScan; String text=""; LayoutInflater controlInflater = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); this.requestWindowFeature(Window.FEATURE_NO_TITLE); this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); getWindow().setFormat(PixelFormat.UNKNOWN); Preview mPreview = new Preview(this); setContentView(mPreview); controlInflater = LayoutInflater.from(getBaseContext()); View viewControl = controlInflater.inflate(R.layout.main, null); LayoutParams layoutParamsControl = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); this.addContentView(viewControl, layoutParamsControl); Button bscan = (Button)findViewById(R.id.mScan); bscan.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v) { IntentIntegrator integrator = new IntentIntegrator(Overlay.this); integrator.initiateScan(IntentIntegrator.QR_CODE_TYPES); } }); } @Override public void onActivityResult(int requestCode, int resultCode, Intent intent) { if (requestCode == 0) { if (resultCode == RESULT_OK) { // Handle successful scan String contents = intent.getStringExtra("SCAN_RESULT"); // String format = intent.getStringExtra("SCAN_RESULT_FORMAT"); text=contents; Toast.makeText(Overlay.this,"Nacitane data: " + contents, Toast.LENGTH_LONG).show(); } else if (resultCode == RESULT_CANCELED) {// Handle cancel } } } } 

    logcat:

    inizio applicazione:

     03-06 14:44:53.489: I/ActivityManager(164): START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=martin.android/.Overlay} from pid 375 03-06 14:44:53.563: D/dalvikvm(1582): Late-enabling CheckJNI 03-06 14:44:53.575: I/ActivityManager(164): Start proc martin.android for activity martin.android/.Overlay: pid=1582 uid=10065 gids={1006} 03-06 14:44:53.676: I/InputReader(164): Reconfiguring input devices. changes=0x00000004 03-06 14:44:53.676: I/InputReader(164): Device reconfigured: id=6, name='mxt224_ts_input', surface size is now 480x800, mode is 1 03-06 14:44:53.696: I/ActivityManager(164): Config changed: {1.0 231mcc6mnc en_GB layoutdir=0 sw320dp w533dp h294dp nrml long land finger -keyb/v/h -nav/h s.5} 03-06 14:44:53.907: D/libEGL(1582): loaded /system/lib/egl/libGLES_android.so 03-06 14:44:53.918: D/libEGL(1582): loaded /vendor/lib/egl/libEGL_POWERVR_SGX540_120.so 03-06 14:44:53.926: D/libEGL(1582): loaded /vendor/lib/egl/libGLESv1_CM_POWERVR_SGX540_120.so 03-06 14:44:53.930: D/libEGL(1582): loaded /vendor/lib/egl/libGLESv2_POWERVR_SGX540_120.so 03-06 14:44:53.965: D/dalvikvm(238): GC_FOR_ALLOC freed 349K, 30% free 9925K/14151K, paused 42ms 03-06 14:44:54.008: D/dalvikvm(238): GC_FOR_ALLOC freed 189K, 30% free 10039K/14151K, paused 35ms 03-06 14:44:54.071: D/OpenGLRenderer(1582): Enabling debug mode 0 03-06 14:44:54.094: I/CameraService(81): Opening camera 0 03-06 14:44:54.098: I/CameraHardwareSec(81): int android::HAL_camera_device_open(const hw_module_t*, const char*, hw_device_t**): open camera 0 03-06 14:44:54.102: E/SecCamera(81): initCamera: m_cam_fd(28), m_jpeg_fd(0) 03-06 14:44:54.102: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:44:54.118: E/SecCamera(81): initCamera: m_cam_fd2(29) 03-06 14:44:54.118: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:44:54.118: I/SecCamera(81): initCamera : initialized 03-06 14:44:54.118: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:44:54.118: I/CameraHardwareSec(81): int android::HAL_camera_device_open(const hw_module_t*, const char*, hw_device_t**): opened camera 0 (0x144d2f0) 03-06 14:44:54.121: I/AwesomePlayer(81): setDataSource_l('/system/media/audio/ui/camera_click.ogg') 03-06 14:44:54.125: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): starting 03-06 14:44:54.125: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): calling mSecCamera->stopPreview() and waiting 03-06 14:44:54.125: W/SecCamera(81): int android::SecCamera::stopPreview(): doing nothing because m_flag_camera_start is zero 03-06 14:44:54.149: D/OpenGLRenderer(375): Flushing caches (mode 1) 03-06 14:44:54.149: I/AwesomePlayer(81): setDataSource_l('/system/media/audio/ui/VideoRecord.ogg') 03-06 14:44:54.340: D/OpenGLRenderer(375): Flushing caches (mode 0) 03-06 14:44:54.399: D/OpenGLRenderer(375): Flushing caches (mode 0) 03-06 14:44:54.996: D/CameraHardwareSec(81): mPreviewHeap(fd(28), size(518400), width(720), height(480)) 03-06 14:44:55.000: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): return from wait 03-06 14:44:55.086: I/ActivityManager(164): Displayed martin.android/.Overlay: +1s555ms 03-06 14:44:55.211: W/IInputConnectionWrapper(375): showStatusIcon on inactive InputConnection 03-06 14:44:55.211: W/InputManagerService(164): Starting input on non-focused client com.android.internal.view.IInputMethodClient$Stub$Proxy@41772888 (uid=10030 pid=375) 03-06 14:44:57.297: D/dalvikvm(164): GC_EXPLICIT freed 581K, 12% free 13695K/15495K, paused 12ms+6ms 

    fisrt scan:

     03-06 14:45:30.778: I/ActivityManager(164): START {act=com.google.zxing.client.android.SCAN cat=[android.intent.category.DEFAULT] flg=0x4080000 pkg=com.google.zxing.client.android cmp=com.google.zxing.client.android/.CaptureActivity (has extras)} from pid 1582 03-06 14:45:30.903: D/dalvikvm(164): GC_FOR_ALLOC freed 118K, 12% free 13647K/15495K, paused 68ms 03-06 14:45:30.903: I/dalvikvm-heap(164): Grow heap (frag case) to 13.503MB for 129616-byte allocation 03-06 14:45:30.961: D/dalvikvm(164): GC_FOR_ALLOC freed 4K, 12% free 13770K/15623K, paused 57ms 03-06 14:45:30.977: I/ActivityManager(164): Start proc com.google.zxing.client.android for activity com.google.zxing.client.android/.CaptureActivity: pid=1605 uid=10055 gids={1006, 3003, 1015} 03-06 14:45:30.989: I/dalvikvm(1605): Turning on JNI app bug workarounds for target SDK version 7... 03-06 14:45:31.028: D/OpenGLRenderer(1582): Flushing caches (mode 1) 03-06 14:45:31.071: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): calling mSecCamera->stopPreview() and waiting 03-06 14:45:31.133: I/CameraHardwareSec(81): void android::CameraHardwareSec::stopPreviewInternal() : preview not running, doing nothing 03-06 14:45:31.133: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): return from wait 03-06 14:45:31.133: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): exiting 03-06 14:45:31.133: W/SecCamera(81): int android::SecCamera::stopPreview(): doing nothing because m_flag_camera_start is zero 03-06 14:45:31.133: W/SecCamera(81): int android::SecCamera::stopRecord(): doing nothing because m_flag_record_start is zero 03-06 14:45:31.133: I/SecCamera(81): DeinitCamera: m_cam_fd(28) 03-06 14:45:31.137: I/SecCamera(81): DeinitCamera: m_cam_fd2(29) 03-06 14:45:31.149: E/CameraHardwareSec(81): preview window is NULL! 03-06 14:45:31.149: I/CameraService(81): Destroying camera 0 03-06 14:45:31.149: I/CameraHardwareSec(81): int android::HAL_camera_device_close(hw_device_t*) 03-06 14:45:31.149: I/SecCamera(81): DeinitCamera : already deinitialized 03-06 14:45:31.153: W/AudioFlinger(81): session id 5 not found for pid 81 03-06 14:45:31.157: W/AudioFlinger(81): session id 6 not found for pid 81 03-06 14:45:31.164: D/OpenGLRenderer(1582): Flushing caches (mode 0) 03-06 14:45:31.231: V/PhoneStatusBar(238): setLightsOn(true) 03-06 14:45:31.246: I/CameraService(81): Opening camera 0 03-06 14:45:31.246: I/CameraHardwareSec(81): int android::HAL_camera_device_open(const hw_module_t*, const char*, hw_device_t**): open camera 0 03-06 14:45:31.246: E/SecCamera(81): initCamera: m_cam_fd(31), m_jpeg_fd(0) 03-06 14:45:31.246: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:45:31.250: E/SecCamera(81): initCamera: m_cam_fd2(32) 03-06 14:45:31.250: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:45:31.250: I/SecCamera(81): initCamera : initialized 03-06 14:45:31.250: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:45:31.250: I/CameraHardwareSec(81): int android::HAL_camera_device_open(const hw_module_t*, const char*, hw_device_t**): opened camera 0 (0x1461270) 03-06 14:45:31.254: I/AwesomePlayer(81): setDataSource_l('/system/media/audio/ui/camera_click.ogg') 03-06 14:45:31.258: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): starting 03-06 14:45:31.258: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): calling mSecCamera->stopPreview() and waiting 03-06 14:45:31.258: W/SecCamera(81): int android::SecCamera::stopPreview(): doing nothing because m_flag_camera_start is zero 03-06 14:45:31.262: I/AwesomePlayer(81): setDataSource_l('/system/media/audio/ui/VideoRecord.ogg') 03-06 14:45:31.282: I/CameraConfiguration(1605): Screen resolution: Point(800, 480) 03-06 14:45:31.282: I/CameraConfiguration(1605): Camera resolution: Point(720, 480) 03-06 14:45:31.286: I/CameraConfiguration(1605): Supported values: [on, off, auto, torch] 03-06 14:45:31.289: I/CameraConfiguration(1605): Settable value: off 03-06 14:45:31.289: I/CameraConfiguration(1605): Supported values: [auto, infinity, macro] 03-06 14:45:31.289: I/CameraConfiguration(1605): Settable value: auto 03-06 14:45:32.176: D/CameraHardwareSec(81): mPreviewHeap(fd(31), size(518400), width(720), height(480)) 03-06 14:45:32.180: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): return from wait 03-06 14:45:32.262: D/d(1605): Calculated framing rect: Rect(100, 60 - 700, 420) 03-06 14:45:32.270: I/ActivityManager(164): Displayed com.google.zxing.client.android/.CaptureActivity: +1s307ms 03-06 14:45:32.457: D/dalvikvm(1605): GC_FOR_ALLOC freed 203K, 4% free 9191K/9479K, paused 37ms 03-06 14:45:32.461: I/dalvikvm-heap(1605): Grow heap (frag case) to 9.516MB for 518416-byte allocation 03-06 14:45:32.504: D/dalvikvm(1605): GC_CONCURRENT freed 4K, 3% free 9693K/9991K, paused 1ms+2ms 03-06 14:45:32.664: D/dalvikvm(1605): GC_FOR_ALLOC freed 738K, 10% free 9189K/10183K, paused 29ms 03-06 14:45:32.692: D/dalvikvm(1605): GC_CONCURRENT freed 0K, 5% free 9695K/10183K, paused 2ms+2ms . . . 03-06 14:45:37.411: D/dalvikvm(1605): GC_FOR_ALLOC freed 733K, 10% free 9189K/10183K, paused 16ms 03-06 14:45:37.454: D/dalvikvm(1605): GC_CONCURRENT freed <1K, 5% free 9695K/10183K, paused 1ms+3ms 03-06 14:45:37.590: D/dalvikvm(1605): GC_FOR_ALLOC freed 733K, 10% free 9189K/10183K, paused 15ms 03-06 14:45:37.637: D/dalvikvm(1605): GC_CONCURRENT freed <1K, 5% free 9695K/10183K, paused 2ms+2ms 03-06 14:45:37.711: D/l(1605): Found barcode in 89 ms 03-06 14:45:37.739: D/dalvikvm(1605): GC_FOR_ALLOC freed 242K, 5% free 9729K/10183K, paused 26ms 03-06 14:45:37.739: I/dalvikvm-heap(1605): Grow heap (frag case) to 10.289MB for 777616-byte allocation 03-06 14:45:37.789: D/dalvikvm(1605): GC_CONCURRENT freed 0K, 5% free 10488K/10951K, paused 2ms+3ms 03-06 14:45:37.813: D/dalvikvm(1605): GC_FOR_ALLOC freed <1K, 5% free 10488K/10951K, paused 17ms 03-06 14:45:37.817: I/dalvikvm-heap(1605): Grow heap (frag case) to 11.030MB for 777616-byte allocation 03-06 14:45:37.848: D/dalvikvm(1605): GC_FOR_ALLOC freed 0K, 5% free 11248K/11719K, paused 23ms 03-06 14:45:37.856: D/v(1605): Got decode succeeded message 03-06 14:45:38.071: D/AudioHardware(81): AudioHardware pcm playback is exiting standby. 03-06 14:45:38.071: D/AudioHardware(81): openPcmOut_l() mPcmOpenCnt: 0 03-06 14:45:39.563: D/v(1605): Got return scan result message 03-06 14:45:39.719: D/dalvikvm(164): GC_FOR_ALLOC freed 46K, 12% free 13788K/15623K, paused 94ms 03-06 14:45:39.719: I/dalvikvm-heap(164): Grow heap (frag case) to 13.640MB for 129616-byte allocation 03-06 14:45:39.778: D/dalvikvm(164): GC_FOR_ALLOC freed 15K, 12% free 13899K/15751K, paused 59ms 03-06 14:45:39.840: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): calling mSecCamera->stopPreview() and waiting 03-06 14:45:39.911: I/CameraHardwareSec(81): void android::CameraHardwareSec::stopPreviewInternal() : preview not running, doing nothing 03-06 14:45:39.911: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): return from wait 03-06 14:45:39.911: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): exiting 03-06 14:45:39.911: W/SecCamera(81): int android::SecCamera::stopPreview(): doing nothing because m_flag_camera_start is zero 03-06 14:45:39.914: W/SecCamera(81): int android::SecCamera::stopRecord(): doing nothing because m_flag_record_start is zero 03-06 14:45:39.914: I/SecCamera(81): DeinitCamera: m_cam_fd(31) 03-06 14:45:39.926: I/SecCamera(81): DeinitCamera: m_cam_fd2(32) 03-06 14:45:39.946: E/CameraHardwareSec(81): preview window is NULL! 03-06 14:45:39.946: I/CameraService(81): Destroying camera 0 03-06 14:45:39.946: I/CameraHardwareSec(81): int android::HAL_camera_device_close(hw_device_t*) 03-06 14:45:39.946: I/SecCamera(81): DeinitCamera : already deinitialized 03-06 14:45:39.961: W/AudioFlinger(81): session id 8 not found for pid 81 03-06 14:45:39.965: W/AudioFlinger(81): session id 9 not found for pid 81 03-06 14:45:39.977: I/CameraService(81): Opening camera 0 03-06 14:45:39.977: I/CameraHardwareSec(81): int android::HAL_camera_device_open(const hw_module_t*, const char*, hw_device_t**): open camera 0 03-06 14:45:39.981: E/SecCamera(81): initCamera: m_cam_fd(31), m_jpeg_fd(0) 03-06 14:45:39.981: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:45:39.989: E/SecCamera(81): initCamera: m_cam_fd2(32) 03-06 14:45:39.989: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:45:39.989: I/SecCamera(81): initCamera : initialized 03-06 14:45:39.989: I/SecCamera(81): Name of input channel[0] is S5K4ECGX 03-06 14:45:39.989: I/CameraHardwareSec(81): int android::HAL_camera_device_open(const hw_module_t*, const char*, hw_device_t**): opened camera 0 (0x144c118) 03-06 14:45:39.989: I/AwesomePlayer(81): setDataSource_l('/system/media/audio/ui/camera_click.ogg') 03-06 14:45:39.993: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): starting 03-06 14:45:39.993: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): calling mSecCamera->stopPreview() and waiting 03-06 14:45:39.993: W/SecCamera(81): int android::SecCamera::stopPreview(): doing nothing because m_flag_camera_start is zero 03-06 14:45:40.000: I/AwesomePlayer(81): setDataSource_l('/system/media/audio/ui/VideoRecord.ogg') 03-06 14:45:40.860: D/CameraHardwareSec(81): mPreviewHeap(fd(31), size(518400), width(720), height(480)) 03-06 14:45:40.864: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): return from wait 03-06 14:45:41.258: I/ActivityManager(164): No longer want com.google.android.deskclock (pid 1415): hidden #16 03-06 14:45:41.516: D/AudioHardware(81): AudioHardware pcm playback is going to standby. 03-06 14:45:41.516: D/AudioHardware(81): closePcmOut_l() mPcmOpenCnt: 1 

    seconda scansione (scansione errori):

     03-06 14:35:09.245: I/ActivityManager(152): START {act=com.google.zxing.client.android.SCAN cat=[android.intent.category.DEFAULT] flg=0x4080000 pkg=com.google.zxing.client.android cmp=com.google.zxing.client.android/.CaptureActivity (has extras)} from pid 1871 03-06 14:35:09.382: D/dalvikvm(152): GC_FOR_ALLOC freed 381K, 13% free 13774K/15687K, paused 105ms 03-06 14:35:09.456: D/OpenGLRenderer(1871): Flushing caches (mode 1) 03-06 14:35:09.491: V/PhoneStatusBar(226): setLightsOn(true) 03-06 14:35:09.514: W/CameraService(81): CameraService::connect X (pid 1896) rejected (existing client). 03-06 14:35:09.534: W/CaptureActivity(1896): Unexpected error initializing camera 03-06 14:35:09.534: W/CaptureActivity(1896): java.lang.RuntimeException: Fail to connect to camera service 03-06 14:35:09.534: W/CaptureActivity(1896): at android.hardware.Camera.native_setup(Native Method) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.hardware.Camera.<init>(Camera.java:302) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.hardware.Camera.open(Camera.java:279) 03-06 14:35:09.534: W/CaptureActivity(1896): at com.google.zxing.client.android.bda(Unknown Source) 03-06 14:35:09.534: W/CaptureActivity(1896): at com.google.zxing.client.android.CaptureActivity.a(Unknown Source) 03-06 14:35:09.534: W/CaptureActivity(1896): at com.google.zxing.client.android.CaptureActivity.surfaceCreated(Unknown Source) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.view.SurfaceView.updateWindow(SurfaceView.java:533) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.view.SurfaceView.access$000(SurfaceView.java:81) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:169) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:590) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1617) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2442) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.os.Handler.dispatchMessage(Handler.java:99) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.os.Looper.loop(Looper.java:137) 03-06 14:35:09.534: W/CaptureActivity(1896): at android.app.ActivityThread.main(ActivityThread.java:4424) 03-06 14:35:09.534: W/CaptureActivity(1896): at java.lang.reflect.Method.invokeNative(Native Method) 03-06 14:35:09.534: W/CaptureActivity(1896): at java.lang.reflect.Method.invoke(Method.java:511) 03-06 14:35:09.534: W/CaptureActivity(1896): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 03-06 14:35:09.534: W/CaptureActivity(1896): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 03-06 14:35:09.534: W/CaptureActivity(1896): at dalvik.system.NativeStart.main(Native Method) 03-06 14:35:09.710: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): calling mSecCamera->stopPreview() and waiting 03-06 14:35:09.721: I/ActivityManager(152): Displayed com.google.zxing.client.android/.CaptureActivity: +334ms 03-06 14:35:09.776: I/CameraHardwareSec(81): void android::CameraHardwareSec::stopPreviewInternal() : preview not running, doing nothing 03-06 14:35:09.776: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): return from wait 03-06 14:35:09.776: I/CameraHardwareSec(81): int android::CameraHardwareSec::previewThreadWrapper(): exiting 03-06 14:35:09.776: W/SecCamera(81): int android::SecCamera::stopPreview(): doing nothing because m_flag_camera_start is zero 03-06 14:35:09.776: W/SecCamera(81): int android::SecCamera::stopRecord(): doing nothing because m_flag_record_start is zero 03-06 14:35:09.776: I/SecCamera(81): DeinitCamera: m_cam_fd(28) 03-06 14:35:09.780: I/SecCamera(81): DeinitCamera: m_cam_fd2(29) 03-06 14:35:09.788: E/CameraHardwareSec(81): preview window is NULL! 03-06 14:35:09.788: I/CameraService(81): Destroying camera 0 03-06 14:35:09.788: I/CameraHardwareSec(81): int android::HAL_camera_device_close(hw_device_t*) 03-06 14:35:09.788: I/SecCamera(81): DeinitCamera : already deinitialized 03-06 14:35:09.792: W/AudioFlinger(81): session id 22 not found for pid 81 03-06 14:35:09.796: W/AudioFlinger(81): session id 23 not found for pid 81 03-06 14:35:09.796: D/OpenGLRenderer(1871): Flushing caches (mode 0) 

  • Posizione di PagerTabStrip all'interno di ViewPager
  • Convertire la string in tracciato
  • Live Wallpaper Tutorial
  • Notifiche locali in Android?
  • Passare enum o object attraverso un intento (la soluzione migliore)
  • Backup / ripristino di Android: come eseguire il backup di un database interno?
  • 4 Solutions collect form web for “zxing integrazione – errore della camera”

    Hai aggiunto l'authorization

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

    al tuo manifesto?

    Per l'integrazione, esiste l'intento di redirect la nostra applicazione all'app zxing e get il risultato. Guarda qui la mia risposta

    So che questo è da molto tempo fa, ma è perché esiste un client della telecamera esistente. La mia ipotesi è che non stai liberando correttamente la camera tra le chiamate.

    Grazie a @Rob, ho capito che non ho chiuso il driver della camera, quindi basta aggiungere il codice qui sotto aPause

      cameraManager.closeDriver(); 
    L'Android è un fan Android di Google, tutto su telefoni Android, Android Wear, Android Dev e applicazioni Android Games e così via.