refactor(android): remove query img usage (apache#907)

* refactor: remove unnecessary duplicate image checks and queryImgDb usage

* remove unused imageType parameter, because it's a private API anyway

src/android/CameraLauncher.java

@@ -127,7 +127,6 @@ public class CameraLauncher extends CordovaPlugin implements MediaScannerConnect
     private boolean allowEdit;              // Should we allow the user to crop the image.
 
     public CallbackContext callbackContext;
-    private int numPics;
 
     private MediaScannerConnection conn;    // Used to update gallery app with newly-written files
     private Uri scanMe;                     // Uri of image to be added to content store
@@ -307,9 +306,6 @@ public void callTakePicture(int returnType, int encodingType) {
 
     public void takePicture(int returnType, int encodingType)
     {
-        // Save the number of images currently on disk for later
-        this.numPics = queryImgDB(whichContentStore()).getCount();
-
         // Let's use the intent and see what happens
         Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
 
@@ -336,8 +332,6 @@ public void takePicture(int returnType, int encodingType)
                 LOG.d(LOG_TAG, "Error: You don't have a default camera.  Your device may not be CTS complaint.");
             }
         }
-//        else
-//            LOG.d(LOG_TAG, "ERROR: You must use the CordovaInterface for this to work correctly. Please implement it in your activity");
     }
 
     /**
@@ -559,12 +553,7 @@ private void processResultFromCamera(int destType, Intent intent) throws IOExcep
                     return;
                 }
 
-
                 this.processPicture(bitmap, this.encodingType);
-
-                if (!this.saveToPhotoAlbum) {
-                    checkForDuplicateImage(DATA_URL);
-                }
             }
 
             // If sending filename back
@@ -626,7 +615,7 @@ else if (destType == FILE_URI) {
                 throw new IllegalStateException();
             }
 
-            this.cleanup(FILE_URI, this.imageUri, galleryUri, bitmap);
+            this.cleanup(this.imageUri, galleryUri, bitmap);
             bitmap = null;
             input.close();
         }
@@ -1207,34 +1196,19 @@ public static int calculateSampleSize(int srcWidth, int srcHeight, int dstWidth,
         }
     }
 
-    /**
-     * Creates a cursor that can be used to determine how many images we have.
-     *
-     * @return a cursor
-     */
-    private Cursor queryImgDB(Uri contentStore) {
-        return this.cordova.getActivity().getContentResolver().query(
-        contentStore,
-        new String[]{MediaStore.Images.Media._ID},
-        null,
-        null,
-        null);
-    }
-
     /**
      * Cleans up after picture taking. Checking for duplicates and that kind of stuff.
      *
      * @param newImage
      */
-    private void cleanup(int imageType, Uri oldImage, Uri newImage, Bitmap bitmap) {
+    private void cleanup(Uri oldImage, Uri newImage, Bitmap bitmap) {
         if (bitmap != null) {
             bitmap.recycle();
         }
 
         // Clean up initial camera-written image file.
         (new File(FileHelper.stripFileProtocol(oldImage.toString()))).delete();
 
-        checkForDuplicateImage(imageType);
         // Scan for the gallery to update pic refs in gallery
         if (this.saveToPhotoAlbum && newImage != null) {
             this.scanForGallery(newImage);
@@ -1243,37 +1217,6 @@ private void cleanup(int imageType, Uri oldImage, Uri newImage, Bitmap bitmap) {
         System.gc();
     }
 
-    /**
-     * Used to find out if we are in a situation where the Camera Intent adds to images
-     * to the content store. If we are using a FILE_URI and the number of images in the DB
-     * increases by 2 we have a duplicate, when using a DATA_URL the number is 1.
-     *
-     * @param type FILE_URI or DATA_URL
-     */
-    private void checkForDuplicateImage(int type) {
-        int diff = 1;
-        Uri contentStore = whichContentStore();
-        Cursor cursor = queryImgDB(contentStore);
-        int currentNumOfImages = cursor.getCount();
-
-        if (type == FILE_URI && this.saveToPhotoAlbum) {
-            diff = 2;
-        }
-
-        // delete the duplicate file if the difference is 2 for file URI or 1 for Data URL
-        if ((currentNumOfImages - numPics) == diff) {
-            cursor.moveToLast();
-            @SuppressLint("Range")
-            int id = Integer.valueOf(cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media._ID)));
-            if (diff == 2) {
-                id--;
-            }
-            Uri uri = Uri.parse(contentStore + "/" + id);
-            this.cordova.getActivity().getContentResolver().delete(uri, null, null);
-            cursor.close();
-        }
-    }
-
     /**
      * Determine if we are storing the images in internal or external storage
      *
@@ -1377,7 +1320,6 @@ public Bundle onSaveInstanceState() {
         state.putInt("targetHeight", this.targetHeight);
         state.putInt("encodingType", this.encodingType);
         state.putInt("mediaType", this.mediaType);
-        state.putInt("numPics", this.numPics);
         state.putBoolean("allowEdit", this.allowEdit);
         state.putBoolean("correctOrientation", this.correctOrientation);
         state.putBoolean("saveToPhotoAlbum", this.saveToPhotoAlbum);
@@ -1401,7 +1343,6 @@ public void onRestoreStateForActivityResult(Bundle state, CallbackContext callba
         this.targetHeight = state.getInt("targetHeight");
         this.encodingType = state.getInt("encodingType");
         this.mediaType = state.getInt("mediaType");
-        this.numPics = state.getInt("numPics");
         this.allowEdit = state.getBoolean("allowEdit");
         this.correctOrientation = state.getBoolean("correctOrientation");
         this.saveToPhotoAlbum = state.getBoolean("saveToPhotoAlbum");