Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.provider.MediaStore;

public class Main {
    protected static Uri scaleDown(Uri imageUri, int targetSize, Context context) {
        System.gc();
        String imagePath = getImagePath(imageUri, context);
        Bitmap currentImage = BitmapFactory.decodeFile(imagePath);

        int targetWidth = targetSize;
        int targetHeight = targetSize;

        int width = currentImage.getWidth();
        int height = currentImage.getHeight();

        if (width < targetWidth || height < targetHeight) {
            currentImage.recycle();
            currentImage = null;
            System.gc();
            return Uri.parse(imageUri.toString());
        }

        height = (int) (height * (float) targetWidth / width);

        Bitmap scaledBitmap = Bitmap.createScaledBitmap(currentImage, targetWidth, height, false);

        if (currentImage != scaledBitmap) {
            currentImage.recycle();
            currentImage = null;
        }
        System.gc();
        File imageFile;
        try {
            imageFile = new File(context.getCacheDir(), "vumatch-upload-00.jpeg");
            FileOutputStream output;

            output = new FileOutputStream(imageFile);
            boolean result = scaledBitmap.compress(CompressFormat.JPEG, 90, output);
            if (result) {
                scaledBitmap.recycle();
                scaledBitmap = null;
                return Uri.fromFile(imageFile);
            } else {
                return null;
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }

        return null;
    }

    protected static String getImagePath(Uri imageUri, Context context) {
        String scheme = imageUri.getScheme();
        if (scheme.equals("file"))
            return imageUri.getPath();
        Cursor cursor = null;
        try {
            String[] proj = { MediaStore.Images.Media.DATA };
            cursor = context.getContentResolver().query(imageUri, proj, null, null, null);
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            cursor.moveToFirst();
            return cursor.getString(column_index);
        } finally {
            if (cursor != null)
                cursor.close();
        }

    }
}