Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.graphics.Rect;
import android.os.Environment;

public class Main {
    public static String writeBitmap(byte[] data) throws IOException {
        File file = new File(Environment.getExternalStorageDirectory() + "/bookclip/");
        file.mkdir();
        String bitmapPath = file.getPath() + "/" + System.currentTimeMillis() + ".jpg";
        FileOutputStream outStream = new FileOutputStream(bitmapPath);
        outStream.write(data);
        outStream.close();

        return bitmapPath;
    }

    public static String writeBitmap(byte[] data, int cameraDegree, Rect rect, Rect willTransformRect)
            throws IOException {
        File file = new File(Environment.getExternalStorageDirectory() + "/bookclip/");
        file.mkdir();
        String bitmapPath = file.getPath() + "/" + System.currentTimeMillis() + ".png";

        // bitmap rotation, scaling, crop
        BitmapFactory.Options option = new BitmapFactory.Options();
        option.inSampleSize = 2;
        Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length, option);
        Matrix bitmapMatrix = new Matrix();
        bitmapMatrix.setRotate(cameraDegree);
        int x = rect.left, y = rect.top, width = rect.right - rect.left, height = rect.bottom - rect.top;
        Bitmap rotateBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), bitmapMatrix,
                false);
        // bitmap recycle
        bitmap.recycle();

        Bitmap scaledBitmap = Bitmap.createScaledBitmap(rotateBitmap, willTransformRect.right,
                willTransformRect.bottom - willTransformRect.top, false);
        // rotatebitmap recycle
        rotateBitmap.recycle();

        Bitmap cropBitmap = Bitmap.createBitmap(scaledBitmap, x, y, width, height, null, false);
        // scaledBitmap recycle
        scaledBitmap.recycle();

        // file write
        FileOutputStream fos = new FileOutputStream(new File(bitmapPath));
        cropBitmap.compress(CompressFormat.PNG, 100, fos);
        fos.flush();
        fos.close();

        // recycle
        cropBitmap.recycle();

        return bitmapPath;
    }
}