Android Bitmap Rotate fixBitmapOrientation(Uri uri, Bitmap bmp)

Description

fix Bitmap Orientation

Declaration

public static Bitmap fixBitmapOrientation(Uri uri, Bitmap bmp)
            throws IOException 

Method Source Code

//package com.java2s;

import java.io.IOException;

import android.graphics.Bitmap;

import android.graphics.Matrix;

import android.media.ExifInterface;
import android.net.Uri;

public class Main {
    public static Bitmap fixBitmapOrientation(Uri uri, Bitmap bmp)
            throws IOException {
        ExifInterface ei = new ExifInterface(uri.getPath());
        int orientation = ei.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_NORMAL);

        switch (orientation) {
        case ExifInterface.ORIENTATION_ROTATE_90:
            return rotateBitmap(bmp, 90);
        case ExifInterface.ORIENTATION_ROTATE_180:
            return rotateBitmap(bmp, 180);
        case ExifInterface.ORIENTATION_ROTATE_270:
            return rotateBitmap(bmp, 270);
        }//from  w  ww  .  jav  a 2  s  . c o  m

        return bmp;
    }

    public static Bitmap rotateBitmap(Bitmap source, float angle) {
        Matrix matrix = new Matrix();
        matrix.postRotate(angle);

        return Bitmap.createBitmap(source, 0, 0, source.getWidth(),
                source.getHeight(), matrix, true);
    }
}

Related

1. rotate(Bitmap b, int degrees)
2. rotate(Bitmap bitmap, int degree)
3. rotateAndMirror(Bitmap b, int degrees, boolean mirror)
4. rotateBitmap(Bitmap b, int degrees)