Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.ExifInterface;

import android.util.Log;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class Main {
    public static void compressFileIfNeeded(String filePath) {
        File f = new File(filePath);

        Bitmap bitmap;
        bitmap = BitmapFactory.decodeFile(filePath);
        int MAX_IMAGE_SIZE = 1000 * 1024;
        int streamLength = (int) f.length();
        if (streamLength > MAX_IMAGE_SIZE) {
            int compressQuality = 105;
            ByteArrayOutputStream bmpStream = new ByteArrayOutputStream();
            while (streamLength >= MAX_IMAGE_SIZE && compressQuality > 5) {
                try {
                    bmpStream.flush();//to avoid out of memory error
                    bmpStream.reset();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                compressQuality -= 5;
                bitmap.compress(Bitmap.CompressFormat.JPEG, compressQuality, bmpStream);
                byte[] bmpPicByteArray = bmpStream.toByteArray();
                streamLength = bmpPicByteArray.length;
                Log.d("test upload", "Quality: " + compressQuality);
                Log.d("test upload", "Size: " + streamLength);
            }

            FileOutputStream fo;

            try {
                f.delete();
                f = new File(filePath);
                fo = new FileOutputStream(f);
                fo.write(bmpStream.toByteArray());
                fo.flush();
                fo.close();
                ExifInterface exif = new ExifInterface(f.getAbsolutePath());
                exif.setAttribute(ExifInterface.TAG_ORIENTATION, "6");
                exif.saveAttributes();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}