Android Bitmap Save writeToFile(Bitmap bitmap, String filePath, int quality)

Description

write To File

Declaration

public static void writeToFile(Bitmap bitmap, String filePath,
        int quality) 

Method Source Code

//package com.java2s;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import android.graphics.Matrix;

import java.io.File;
import java.io.FileOutputStream;

public class Main {

    public static void writeToFile(Bitmap bitmap, String filePath,
            int quality) {
        File f = new File(filePath);
        FileOutputStream fOut = null;
        try {/*  w ww .  ja  va  2 s  . co  m*/
            f.createNewFile();
            fOut = new FileOutputStream(f);
            bitmap.compress(Bitmap.CompressFormat.JPEG, quality, fOut);
            fOut.flush();
            fOut.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static Bitmap compress(String filePath, int width, int height) {
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        Bitmap bitmap = BitmapFactory.decodeFile(filePath, options);

        int bmpWidth = options.outWidth;
        int bmpHeight = options.outHeight;

        options.inJustDecodeBounds = false;
        bitmap = BitmapFactory.decodeFile(filePath, options);

        float scaleWidth = bmpWidth;
        float scaleHeight = bmpHeight;

        //????????
        if (bmpWidth > width) {
            scaleWidth = width / scaleWidth;
        } else {
            scaleWidth = 1;
        }

        //????????
        if (bmpHeight > height) {
            scaleHeight = height / scaleHeight;
        } else {
            scaleHeight = 1;
        }

        Matrix matrix = new Matrix();

        matrix.postScale(scaleWidth, scaleHeight);
        Bitmap resizeBitmap = Bitmap.createBitmap(bitmap, 0, 0, bmpWidth,
                bmpHeight, matrix, false);

        //????scaleWidth?scaleHeight??1???,????????,createBitmap???????bitmap.
        //?????????bitmap,??????bitmap???,????????????bitmap??????.
        if (bitmap != resizeBitmap) {
            bitmap.recycle();
        }
        return resizeBitmap;
    }
}

Related

1. saveBitmapToPath(Context ctxt, String path, String filename, Bitmap bm)
2. saveJPEGBitmap(Bitmap bmp, String path)
3. saveJpegFile(String fileName, Bitmap bitmap)
4. savePNGBitmap(Bitmap bmp, String path)
5. storeBitmapToFile(Bitmap bitmap, String filePath)