Android拍照失敗

我一直在試圖爲Android製作相機應用程序，但是當我嘗試拍攝照片時，它出現錯誤，我必須強行關閉。的logcat的是：
Android拍照失敗

07-14 12:41:25.195: D/dalvikvm(13549): GC_EXPLICIT freed 51K, 49% free 2694K/5187K, external 3474K/4422K, paused 26ms 
    07-14 12:41:25.195: D/AndroidRuntime(13549): Shutting down VM 
    07-14 12:41:25.195: W/dalvikvm(13549): threadid=1: thread exiting with uncaught exception (group=0x4001e560) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): FATAL EXCEPTION: main 
    07-14 12:41:25.226: E/AndroidRuntime(13549): java.lang.RuntimeException: takePicture failed 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.hardware.Camera.native_takePicture(Native Method) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.hardware.Camera.takePicture(Camera.java:829) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.hardware.Camera.takePicture(Camera.java:793) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at com.mvitsor.camerax.cameraMainActivity.takepic(cameraMainActivity.java:53) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at com.mvitsor.camerax.cameraMainActivity$5.onClick(cameraMainActivity.java:44) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.view.View.performClick(View.java:2485) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.view.View$PerformClick.run(View.java:9089) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.os.Handler.handleCallback(Handler.java:587) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.os.Handler.dispatchMessage(Handler.java:92) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.os.Looper.loop(Looper.java:130) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at android.app.ActivityThread.main(ActivityThread.java:3859) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at java.lang.reflect.Method.invokeNative(Native Method) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at java.lang.reflect.Method.invoke(Method.java:507) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:840) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:598) 
    07-14 12:41:25.226: E/AndroidRuntime(13549): at dalvik.system.NativeStart.main(Native Method)

這裏是代碼：

package com.mvitsor.camerax; 

    import java.io.FileNotFoundException; 
    import java.io.FileOutputStream; 
    import java.io.IOException; 

    import android.app.Activity; 
    import android.content.pm.ActivityInfo; 
    import android.graphics.PixelFormat; 
    import android.hardware.Camera; 
    import android.os.Bundle; 
    import android.util.Log; 
    import android.view.SurfaceHolder; 
    import android.view.SurfaceView; 
    import android.view.View; 
    import android.widget.ImageButton; 
    import android.widget.Toast; 

    public class cameraMainActivity extends Activity { 
     /** Called when the activity is first created. */ 
     Camera camera; 
     SurfaceView preview; 
     SurfaceHolder previewHolder; 
     ImageButton takePic; 

     @Override 
     public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 
      setContentView(R.layout.main_camera_layout); 

      preview = (SurfaceView) findViewById(R.id.SVpreview); 
      previewHolder = preview.getHolder(); 
      previewHolder.addCallback(surfaceCallback); 
      previewHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 
      takePic = (ImageButton) findViewById(R.id.btn_take_pic); 

      takePic.setOnClickListener(new View.OnClickListener() { 

       @Override 
       public void onClick(View v) { 
        takepic();    
       } 
      }); 
     } 

     public void takepic(){ 
      camera.stopPreview(); 
      System.gc(); 
      camera.takePicture(null, null, photoCallback); 
      //camera.takePicture(ShutterCallback, rawCallback, photoCallback); 
     } 

     private Camera.Size getBestPreviewSize(int width, int height, 
       Camera.Parameters parameters) { 
      Camera.Size result = null; 

      for (Camera.Size size : parameters.getSupportedPreviewSizes()) { 
       if (size.width <= width && size.height <= height) { 
        if (result == null) { 
         result = size; 
        } else { 
         int resultArea = result.width * result.height; 
         int newArea = size.width * size.height; 

         if (newArea > resultArea) { 
          result = size; 
         } 
        } 
       } 
      } 

      return (result); 
     } 

     SurfaceHolder.Callback surfaceCallback = new SurfaceHolder.Callback() { 

      @Override 
      public void surfaceCreated(SurfaceHolder holder) { 
       camera = Camera.open(); 

       try { 
        camera.setPreviewDisplay(previewHolder); 
       } catch (Throwable t) { 
        Toast toast = Toast.makeText(cameraMainActivity.this, 
          "Exception in setPreviewDisplay", Toast.LENGTH_LONG); 
        toast.show(); 
       } 
      } 

      @Override 
      public void surfaceChanged(SurfaceHolder holder, int format, int width, 
        int height) { 
       Camera.Parameters parameters = camera.getParameters(); 

       Camera.Size bestSize = getBestPreviewSize(width, height, parameters); 
       parameters.setPreviewSize(bestSize.width, bestSize.height); 

       parameters.setPictureFormat(PixelFormat.JPEG); 
       camera.setParameters(parameters); 
       camera.startPreview(); 
      } 

      @Override 
      public void surfaceDestroyed(SurfaceHolder holder) { 
       camera.stopPreview(); 
       camera.release(); 
       camera = null; 
      } 

     }; 

     /* 
     Camera.ShutterCallback ShutterCallback = new Camera.ShutterCallback() { 
      public void onShutter() { 
      } 
     }; 

     PictureCallback rawCallback = new PictureCallback() { 
      public void onPictureTaken(byte[] data, Camera camera) { 
      } 
     }; 
     */ 

     Camera.PictureCallback photoCallback = new Camera.PictureCallback() { 
      public void onPictureTaken(byte[] data, Camera camera) { 
       // Save the image JPEG data to the SD card 
       FileOutputStream outStream = null; 
       try { 
        outStream = new FileOutputStream("/sdcard/test.jpg"); 
        outStream.write(data); 
        outStream.close(); 
       } catch (FileNotFoundException e) { 
        Log.d("CAMERA", e.getMessage()); 
       } catch (IOException e) { 
        Log.d("CAMERA", e.getMessage()); 
       } 
       camera.startPreview(); 
       /*new SavePhotoTask().execute(data); 
       camera.startPreview();*/ 
      } 
     }; 
    }

我都試過camera.takePicture(null, null, photoCallback);和camera.takePicture(ShutterCallback, rawCallback, photoCallback);，你可以看到，我也讀的地方，System.gc();可以工作，但事實並非如此。另外，我讀到一個常見的問題，就是在拍攝照片後忘記重新開始預覽，但是我之後打電話給camera.startPreview();，所以我真的不知道發生了什麼事情！

我正在運行Android 2.3.3（Motorola Razr）。（它看起來像很多人在Android 2.3.3上遇到問題...）。

如果有人能幫忙，我會很感激！

維托爾貂斯特恩利希特

我上傳整個項目http://www.4shared.com/rar/meSWrQPm/CameraTest.html

我下載了一個應用程序，顯示此日誌...也許有什麼東西在這裏，可以幫助：它看起來像創建文件目錄時發生問題。我該如何解決這個問題？

07-15 12:43:36.578 27203 27487 W ActivityManager: Force finishing activity com.mvitsor.camerax/.cameraMainActivity 
    07-15 12:43:36.601 27203 27221 W ApplicationContext: Unable to create files directory

下面是完整的日誌

07-15 13:09:08.226 27203 27582 W ActivityManager: Force finishing activity com.mvitsor.camerax/.cameraMainActivity 
    07-15 12:43:36.601 27203 27221 W ApplicationContext: Unable to create files directory 
    07-15 13:09:08.414 27203 27221 I ActivityManager: Config changed: { scale=1.0 imsi=724/10 loc=pt_BR touch=3 keys=1/1/2 nav=1/1 orien=1 layout=268435490 uiMode=17 seq=139} 
    07-15 13:09:08.726 27203 27219 W ActivityManager: Activity pause timeout for HistoryRecord{40562350 com.mvitsor.camerax/.cameraMainActivity} 
    07-15 13:09:09.132 27203 27219 I ActivityManager: No longer want android.process.media (pid 11091): hidden #21 
    07-15 13:09:09.515 27203 27488 I WindowManager: WIN DEATH: Window{40d859a8 com.mvitsor.camerax/com.mvitsor.camerax.cameraMainActivity paused=false} 
    07-15 13:09:09.515 27203 27499 I ActivityManager: Process com.mvitsor.camerax (pid 11848) has died. 
    07-15 13:09:09.515 27203 27426 I WindowManager: WIN DEATH: Window{40ef8c70 SurfaceView paused=false} 
    07-15 13:09:09.539 27203 27210 I MotOverlay: disable_streaming_locked 
    07-15 13:09:09.539 27203 27210 I MotOverlay: Destroying overlay/fd=300/obj=4650c000 
    07-15 13:09:09.539 27498 24620 D IMirrorIpc: onTransact (2) 
    07-15 13:09:09.539 27498 24620 D MirrorIpc: unregisterCallback: client 0 
    07-15 13:09:09.539 27498 24620 D MirrorUCMgrIpcCB: ipcInit - Client already exists 
    07-15 13:09:09.539 27498 24620 D MirrorEngine: hdmiMirrorActiveOverlay/0 
    07-15 13:09:09.539 27174 11890 D OverlayDisplayAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OverlayDisplayAdapter.cpp:714 processHalMsg - Display thread received DISPLAY_EXIT command from Camera HAL. 
    07-15 13:09:09.539 27174 11890 D OverlayDisplayAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OverlayDisplayAdapter.cpp:715 processHalMsg - Stopping display thread... 
    07-15 13:09:09.539 27174 11890 D OverlayDisplayAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OverlayDisplayAdapter.cpp:735 processHalMsg - +Signalling display semaphore 
    07-15 13:09:09.539 27174 11890 D OverlayDisplayAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OverlayDisplayAdapter.cpp:740 processHalMsg - -Signalling display semaphore 
    07-15 13:09:09.539 27174 27672 E CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:1517 stop - AppCallbackNotifier already in stopped state 
    07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:161 notificationThread - Notification Thread received message from Camera HAL 
    07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:848 processMessage - +Msg get... 
    07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:850 processMessage - -Msg get... 
    07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:869 processMessage - Received NOTIFIER_EXIT command from Camera HAL 
    07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:880 processMessage - +Signalling semaphore from CameraHAL.. 
    07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:883 processMessage - -Signalling semaphore from CameraHAL.. 
    07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:165 notificationThread - Notification Thread exiting. 
    07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:190 notificationThread - Notification Thread exited. 
    07-15 13:09:09.539 27174 27672 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:938 ~AppCallbackNotifier - Stopping Event Provider 
    07-15 13:09:09.539 27174 27672 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:946 ~AppCallbackNotifier - Stopping Frame Provider 
    07-15 13:09:09.539 27174 27672 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/BaseCameraAdapter.cpp:476 sendCommand - Set time out 
    07-15 13:09:09.539 27174 27672 D OMXCameraAdapter: 
    07-15 13:09:09.539 27174 27672 D OMXCameraAdapter: 
    07-15 13:09:09.539 27174 27672 D OMXCameraAdapter: **** ~OMXCameraAdapter called() ! **** 
    07-15 13:09:09.539 27174 27672 D OMXCameraAdapter: 
    07-15 13:09:09.585 27174 27672 E DOMX_RPC: Closing IPC 
    07-15 13:09:09.585 27174 11875 D OMXCameraAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OMXCameraAdapter/OMXCameraAdapter.cpp:9462 Handler - msg.command = -1 
    07-15 13:09:09.585 27174 11875 E OMXCameraAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OMXCameraAdapter/OMXCameraAdapter.cpp:9476 Handler - Exiting command handler 
    07-15 13:09:09.585 27174 27672 D OMXCameraAdapter: 
    07-15 13:09:09.585 27174 27672 D OMXCameraAdapter: 
    07-15 13:09:09.585 27174 27672 D OMXCameraAdapter: **** ~OMXCameraAdapter exiting ! **** 
    07-15 13:09:09.585 27174 27672 D OMXCameraAdapter: 
    07-15 13:09:09.601 27174 27672 D CameraHal: 
    07-15 13:09:09.601 27174 27672 D CameraHal: 
    07-15 13:09:09.601 27174 27672 D CameraHal: **** ~CameraHal() **** 
    07-15 13:09:09.601 27174 27672 D CameraHal: 
    07-15 13:09:09.601 27174 27672 D CameraHal: 
    07-15 13:09:11.523 27203 27552 I ActivityManager: Starting: Intent { act=android.intent.action.MAIN flg=0x10500000 cmp=de.softxperience.android.nedebug/.LogcatActivity } from pid 27542

來源

2012-07-14 mvitsor

異常發生在什麼時候？你能夠啓動相機嗎？ – Taha 2012-07-14 18:39:51

我可以啓動相機，看到預覽，但它錯誤，當我點擊按鈕拍照... – mvitsor 2012-07-15 01:35:33

嘗試添加以下權限，因爲捕獲它不允許存儲圖像...

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

來源

2012-07-15 07:48:02 Taha

它仍然不起作用...:( – mvitsor 2012-07-15 15:45:17

我下載了一個應用程序，顯示了這個日誌...也許這裏有一些可以幫助的東西：它看起來像創建文件目錄時發生的問題，我該如何解決這個問題？ '07-15 12：43：36.578 27203 27487 W ActivityManager：強制整理活動com.mvitsor.camerax/.cameraMainActivity' '07-15 12：43：36.601 27203 27221 W ApplicationContext：無法創建文件目錄' – mvitsor 2012-07-15 16:02:00

嘗試移除創建OutputStream對象的SD卡。它只是test.jpg – Taha 2012-07-15 17:39:54

你確定你請求允許拍照（和使用任何攝像功能）

<uses-permission android:name="android.permission.CAMERA" /> 
<uses-feature android:name="android.hardware.camera" /> 
<uses-feature android:name="android.hardware.camera.autofocus" />

來源

2012-07-14 16:44:54

其實，我沒有要求使用相機功能，但它仍然無法正常工作... （並且LogCat也沒有改變） – mvitsor 2012-07-14 17:58:08

我下載了一個顯示這個日誌的應用程序......也許這裏有些東西可以幫助：它看起來像創建文件目錄時發生的問題。我該如何解決這個問題？ '07-15 12：43：36.578 27203 27487 W ActivityManager：強制結束活動com.mvitsor.camerax/.cameraMainActivity'' 07-15 12：43：36.601 27203 27221 W ApplicationContext：無法創建文件目錄' – mvitsor 2012-07-15 16:04:41

嘗試添加WRITE_EXTERNAL_STORAGE權限。 – 2012-07-15 16:49:21

Android拍照失敗

回答

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