2012-05-11 49 views
3

我有一个应用程序处理从画廊中选择的图片。但对ICS崩溃这样的堆栈跟踪:未能提供画廊的结果

java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, Intent { dat=content://com.google.android.gallery3d.provider/picasa/item/5629933319233370946 }} to activity {com.myexample/com.myexample.activities.UserProfileActivity}: java.lang.NullPointerException 
at android.app.ActivityThread.deliverResults(ActivityThread.java:2980) 
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3023) 
at android.app.ActivityThread.access$1100(ActivityThread.java:123) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1177) 
at android.os.Handler.dispatchMessage(Handler.java:99) 
at android.os.Looper.loop(Looper.java:137) 
at android.app.ActivityThread.main(ActivityThread.java:4424) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:511) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554) 
at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.NullPointerException 
at java.io.File.fixSlashes(File.java:185) 
at java.io.File.(File.java:134) 
at com.jettaxi.activities.UserProfileActivity.onActivityResult(SourceFile:316) 
at android.app.Activity.dispatchActivityResult(Activity.java:4649) 
at android.app.ActivityThread.deliverResults(ActivityThread.java:2976) 
... 11 more 

我发现关于这些漏洞的一些信息,但我能避免这种情况又如何呢?

编辑: 我的代码:

private void getImageFromGallery() { 
     Intent galleryIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI); 
     startActivityForResult(galleryIntent, GALLERY_PIC_REQUEST); 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    if (resultCode == RESULT_OK) { 
     if (requestCode == CAMERA_PIC_REQUEST) { 
      try { 
       captureFile = new File(getCaptureFilePath()); 
       captureUri = Uri.fromFile(captureFile); 

       Bitmap scaledBitmap = decodeFileAndResize(captureFile); 
       saveResizedAndCompressedBitmap(scaledBitmap); 

       Bitmap rotatedBitmap = convertToRotatedBitmap(scaledBitmap); 
       driverPhoto.setImageBitmap(rotatedBitmap); 

       if (rotatedBitmap != scaledBitmap) { 
        scaledBitmap.recycle(); 
        scaledBitmap = null; 
        System.gc(); 
       } 
      } catch (IOException e) { 
       BugSenseHandler.log(TAG, e); 
      } 
     } else if (requestCode == GALLERY_PIC_REQUEST) { 
      try { 
       captureFile = new File(getCaptureFilePath()); 
       captureUri = Uri.fromFile(captureFile); 

       Uri chosenUri = data.getData(); 

       String[] filePathColumn = {MediaStore.Images.Media.DATA}; 

       Cursor cursor = getContentResolver().query(chosenUri, filePathColumn, null, null, null); 
       cursor.moveToFirst(); 

       int columnIndex = cursor.getColumnIndex(filePathColumn[0]); 
       String filePath = cursor.getString(columnIndex); 
       cursor.close(); 

       File chosenFile = new File(filePath); 

       Bitmap selectedImageBitmap = decodeFileAndResize(chosenFile); 
       saveResizedAndCompressedBitmap(selectedImageBitmap); 
       driverPhoto.setImageBitmap(selectedImageBitmap); 
      } catch (IOException ie) { 
       BugSenseHandler.log(TAG, ie); 
      } 
     } 
    } 
} 

回答

10

这可能通过阻止列出不是在SD卡上的项目帮助:

galleryIntent.putExtra(Intent.EXTRA_LOCAL_ONLY, true); 
+0

任何想法为什么你不能得到一个URI不是在SD卡上的项目? – speedynomads

+0

请注意,该字段需要API级别11。 – Sandy

0

堆栈跟踪说,图像是从Picasa相册。所以你在SD卡上没有文件。在这种情况下,使用getContentResolver().openInputStream(intent.getData())加载图像。

+0

图片SD卡的存在,因为它出现在画廊,以及一些数量的设备出现这个问题,根本没有 – skayred

+0

Picasa图像不需要在SD卡上。只要看看Gallery3D的源代码。所以你可能会得到一个指向在线图像的URI,但是你要求内容提供商提供一个不存在的文件路径。 – Renard

+0

好吧,那么我们如何检查或防止呢? – ChuckKelly