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.Matrix;

import android.media.ExifInterface;

public class Main {
    public static Bitmap rotateByExifInfo(Bitmap source, String path) {
        try {
            ExifInterface exifInterface = new ExifInterface(path);
            String tagName = ExifInterface.TAG_ORIENTATION;
            int defaultValue = ExifInterface.ORIENTATION_NORMAL;
            int orientation = exifInterface.getAttributeInt(tagName, defaultValue);
            switch (orientation) {
            case ExifInterface.ORIENTATION_NORMAL:
                return source;
            case ExifInterface.ORIENTATION_ROTATE_90:
                return rotate(source, 90);
            case ExifInterface.ORIENTATION_ROTATE_180:
                return rotate(source, 180);
            case ExifInterface.ORIENTATION_ROTATE_270:
                return rotate(source, 270f);
            default:
                return source;
            }
        } catch (Exception e) {
            return source;
        }
    }

    public static Bitmap rotate(Bitmap source, float degrees) {
        if (source == null || source.getWidth() == 0 || source.getHeight() == 0)
            return null;
        int width = source.getWidth();
        int height = source.getHeight();
        Matrix m = new Matrix();
        float w = width;
        float h = height;
        float px = w / 2;
        float py = h / 2;
        m.setRotate(degrees, px, py);
        return Bitmap.createBitmap(source, 0, 0, width, height, m, true);
    }
}