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Fix Android image rotation issue when compressing gallery and camera … #986

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Merged
merged 1 commit into from
Apr 26, 2019
Merged

Fix Android image rotation issue when compressing gallery and camera … #986

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24 changes: 24 additions & 0 deletions android/src/main/java/com/reactnative/ivpusic/imagepicker/Compression.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.media.ExifInterface;
import android.os.Environment;
import android.util.Log;

Expand Down Expand Up @@ -30,6 +32,14 @@ File resize(String originalImagePath, int maxWidth, int maxHeight, int quality)
int width = original.getWidth();
int height = original.getHeight();

// Use original image exif orientation data to preserve image orientation for the resized bitmap
ExifInterface originalExif = new ExifInterface(originalImagePath);
int originalOrientation = originalExif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);

Matrix rotationMatrix = new Matrix();
int rotationAngleInDegrees = getRotationInDegreesForOrientationTag(originalOrientation);
rotationMatrix.postRotate(rotationAngleInDegrees);

float ratioBitmap = (float) width / (float) height;
float ratioMax = (float) maxWidth / (float) maxHeight;

Expand All @@ -43,6 +53,7 @@ File resize(String originalImagePath, int maxWidth, int maxHeight, int quality)
}

Bitmap resized = Bitmap.createScaledBitmap(original, finalWidth, finalHeight, true);
resized = Bitmap.createBitmap(resized, 0, 0, finalWidth, finalHeight, rotationMatrix, true);
File resizeImageFile = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES), UUID.randomUUID() + ".jpg");

Expand All @@ -56,6 +67,19 @@ File resize(String originalImagePath, int maxWidth, int maxHeight, int quality)
return resizeImageFile;
}

int getRotationInDegreesForOrientationTag(int orientationTag) {
switch(orientationTag){
case ExifInterface.ORIENTATION_ROTATE_90:
return 90;
case ExifInterface.ORIENTATION_ROTATE_270:
return -90;
case ExifInterface.ORIENTATION_ROTATE_180:
return 180;
default:
return 0;
}
}

File compressImage(final ReadableMap options, final String originalImagePath, final BitmapFactory.Options bitmapOptions) throws IOException {
Integer maxWidth = options.hasKey("compressImageMaxWidth") ? options.getInt("compressImageMaxWidth") : null;
Integer maxHeight = options.hasKey("compressImageMaxHeight") ? options.getInt("compressImageMaxHeight") : null;
Expand Down