Example usage for android.graphics BitmapFactory decodeFile

Introduction

In this page you can find the example usage for android.graphics BitmapFactory decodeFile.

Prototype

public static Bitmap decodeFile(String pathName)

Source Link

Document

Decode a file path into a bitmap.

Usage

From source file:Main.java

public static Bitmap cropJpgFile(String inFl, String outFl) throws IOException {
    Bitmap bmpIn = BitmapFactory.decodeFile(inFl);
    Bitmap bmOverlay = Bitmap.createBitmap(bmpIn.getWidth(), bmpIn.getHeight(), Bitmap.Config.ARGB_8888);
    Paint p = new Paint();
    p.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
    Canvas c = new Canvas(bmOverlay);
    c.drawBitmap(bmpIn, 0, 0, null);//from w w w  .ja  va  2  s.c  o  m
    //c.drawRect(30, 30, 100, 100, p);
    File fileOut = new File(outFl);
    FileOutputStream out = new FileOutputStream(fileOut);
    bmOverlay = drawTextToBitmap(bmOverlay, "Image Viewer");
    bmOverlay.compress(Bitmap.CompressFormat.JPEG, 100, out);
    return bmOverlay;
}

From source file:Main.java

/**
 * Adjust the photo orientation//from w w w. ja  v  a 2 s .c  o m
 * @param pathToFile
 * @return
 */
public static Bitmap adjustPhotoOrientation(String pathToFile) {
    try {
        Bitmap bitmap = BitmapFactory.decodeFile(pathToFile);
        ExifInterface exif = new ExifInterface(pathToFile);
        int exifOrientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_NORMAL);
        int rotate = 0;

        switch (exifOrientation) {
        case ExifInterface.ORIENTATION_ROTATE_90:
            rotate = 90;
            break;

        case ExifInterface.ORIENTATION_ROTATE_180:
            rotate = 180;
            break;

        case ExifInterface.ORIENTATION_ROTATE_270:
            rotate = 270;
            break;
        }
        if (rotate != 0) {
            int w = bitmap.getWidth();
            int h = bitmap.getHeight();

            // Setting pre rotate
            Matrix mtx = new Matrix();
            mtx.preRotate(rotate);

            // Rotating Bitmap & convert to ARGB_8888, required by tess
            bitmap = Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, false);
            bitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
            return bitmap;
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static Bitmap readImageFile(String fileName) {
    if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
        return null;
    }// ww  w  . j  a v a  2s.c om
    File file = new File(Environment.getExternalStorageDirectory().toString() + File.separator + fileName);
    if (!file.exists()) {
        return null;
    }
    return BitmapFactory.decodeFile(fileName);
}

From source file:Main.java

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

    Bitmap bitmap;/*w  w  w  .j  av a  2  s.  c om*/
    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();
        }
    }
}

From source file:Main.java

public static Bitmap getBitmapFromUrl(String imageUrl) {
    Bitmap bmp = null;//ww  w .j  av a  2 s .c o  m
    try {
        if (!TextUtils.isEmpty(imageUrl) && imageUrl.startsWith("http")) {
            URL url = new URL(imageUrl);
            bmp = BitmapFactory.decodeStream(url.openStream());
        } else {
            bmp = BitmapFactory.decodeFile(imageUrl);
        }
    } catch (Throwable ex) {

    }
    return bmp;
}

From source file:Main.java

/**
 * get a bitmap by giving a file location
 * @param fileName/*from w  w  w .j  a  v a 2  s . c  o  m*/
 * @return
 */
public static Bitmap getImgFromLocation(String fileName) {
    File imgFile = new File(fileName);

    Bitmap myBitmap = null;

    //shows an image on the screen
    if (imgFile.exists()) {

        myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
        Log.i(TAG, "file saved");

    } else
        Log.i(TAG, "file not found");

    return myBitmap;
}

From source file:Main.java

public static Bitmap roundCornerFromFile(String filePath, int pixels) {
    try {/*ww  w.  jav  a 2  s  .c om*/
        Bitmap bitmap = BitmapFactory.decodeFile(filePath);
        if (bitmap == null)
            return null;
        Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), bitmap.getConfig());
        Canvas canvas = new Canvas(output);
        final int color = 0xff424242;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
        final RectF rectF = new RectF(rect);
        final float roundPx = pixels;
        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);
        bitmap.recycle();
        bitmap = null;
        return output;
    } catch (OutOfMemoryError e) {
        return null;
    } catch (Exception e) {
        return null;
    }
}

From source file:Main.java

public static SpannableString StringToBitMap(Context context, String msg) {
    SpannableString ss = new SpannableString(msg);
    Pattern p = Pattern.compile("/mnt/sdcard/.+?\\.\\w{3}");
    Matcher m = p.matcher(msg);//from  w  w w.  ja v  a 2 s. co m
    while (m.find()) {
        Bitmap bitmap = BitmapFactory.decodeFile(m.group());
        ImageSpan imageSpan = new ImageSpan(context, bitmap);
        ss.setSpan(imageSpan, m.start(), m.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    }
    return ss;
}

From source file:Main.java

public static byte[] bitmapToByte(String path) {
    File file = new File(path);
    if (!file.exists()) {
        return null;
    }/*from  w ww .j  av  a2s  . c o m*/
    Bitmap bitmap = BitmapFactory.decodeFile(path);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.PNG, 100, bos);
    return bos.toByteArray();
}

From source file:Main.java

public static Bitmap getSamlBitmapFromFill(String fileName, int width, int height) {
    if (fileName.split("/").length <= 1) {
        fileName = SDCARD_DIR + fileName;
    }//from  w  w  w  . jav  a 2  s  .  com
    Bitmap srcBitmap = BitmapFactory.decodeFile(fileName);
    if (srcBitmap == null) {
        return null;
    }
    Bitmap destBitmap = scaleAndFrame(srcBitmap, width, height);
    return destBitmap;
}