Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import android.graphics.Matrix;

import android.media.ExifInterface;

import java.io.IOException;

public class Main {
    /**
     * Adjust the photo orientation
     * @param pathToFile
     * @return
     */
    public static Bitmap adjustPhotoOrientation(String pathToFile) {
        try {
            Bitmap bitmap = BitmapFactory.decodeFile(pathToFile);
            ExifInterface exif = new ExifInterface(pathToFile);
            int exifOrientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                    ExifInterface.ORIENTATION_NORMAL);
            int rotate = 0;

            switch (exifOrientation) {
            case ExifInterface.ORIENTATION_ROTATE_90:
                rotate = 90;
                break;

            case ExifInterface.ORIENTATION_ROTATE_180:
                rotate = 180;
                break;

            case ExifInterface.ORIENTATION_ROTATE_270:
                rotate = 270;
                break;
            }
            if (rotate != 0) {
                int w = bitmap.getWidth();
                int h = bitmap.getHeight();

                // Setting pre rotate
                Matrix mtx = new Matrix();
                mtx.preRotate(rotate);

                // Rotating Bitmap & convert to ARGB_8888, required by tess
                bitmap = Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, false);
                bitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
                return bitmap;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}