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, Options opts)

Source Link

Document

Decode a file path into a bitmap.

Usage

From source file:Main.java

public static Bitmap decodeSampledBitmap(String file, int reqWidth, int reqHeight) {

    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;//from   w w  w .j ava2 s.c  om
    BitmapFactory.decodeFile(file, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeFile(file, options);
}

From source file:Main.java

public static Bitmap decodeSampledBitmapFromPath(String pathName, int reqWidth, int reqHeight) {
    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;//from   w w w .  j  a  v a2  s  .c o  m
    BitmapFactory.decodeFile(pathName, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeFile(pathName, options);
}

From source file:Main.java

public static void setImageSrc(ImageView imageView, String imagePath) {
    BitmapFactory.Options option = new BitmapFactory.Options();
    option.inSampleSize = getImageScale(imagePath);
    Bitmap bm = BitmapFactory.decodeFile(imagePath, option);
    imageView.setImageBitmap(bm);/*from w w  w .  j ava 2s .c  om*/
}

From source file:Main.java

public static Bitmap getPic(File file, int width, int height) {
    String uri = file.getAbsolutePath();
    // Get the dimensions of the bitmap
    BitmapFactory.Options bmOptions = new BitmapFactory.Options();
    bmOptions.inJustDecodeBounds = true;
    BitmapFactory.decodeFile(uri, bmOptions);
    int photoW = bmOptions.outWidth;
    int photoH = bmOptions.outHeight;

    // Determine how much to scale down the image
    int scaleFactor = Math.min(photoW / width, photoH / height);

    // Decode the image file into a Bitmap sized to fill the View
    bmOptions.inJustDecodeBounds = false;
    bmOptions.inSampleSize = scaleFactor;
    bmOptions.inPurgeable = true;//w  w w.j a  va2  s  .  c  o m

    return BitmapFactory.decodeFile(uri, bmOptions);
}

From source file:Main.java

public static Bitmap compressPixel1(String imgPath, float pixelW, float pixelH) {
    BitmapFactory.Options newOpts = new BitmapFactory.Options();
    newOpts.inJustDecodeBounds = true;/*from   w ww. j  a v  a  2s . c  o  m*/
    newOpts.inPreferredConfig = Config.RGB_565;
    Bitmap bitmap = BitmapFactory.decodeFile(imgPath, newOpts);
    newOpts.inJustDecodeBounds = false;
    int w = newOpts.outWidth;
    int h = newOpts.outHeight;
    float hh = pixelH;
    float ww = pixelW;
    int height = h;
    int width = w;
    int inSampleSize = 1;
    if (h > hh || w > ww) {
        final int halfHeight = h / 2;
        final int halfWidth = w / 2;
        while ((halfHeight / inSampleSize) > hh && (halfWidth / inSampleSize) > ww) {
            inSampleSize *= 2;
        }

        if (h > w) {
            height = 1280;
            width = (1280 * w) / h;
        } else {
            width = 1280;
            height = (1280 * h) / w;
        }
    }
    newOpts.inSampleSize = inSampleSize;
    bitmap = BitmapFactory.decodeFile(imgPath, newOpts);

    Bitmap dst = Bitmap.createScaledBitmap(bitmap, width, height, false);
    if (bitmap != dst) {
        bitmap.recycle();
    }

    return dst;
}

From source file:Main.java

public static String getMimeTypeOfFile(String pathName) {
    BitmapFactory.Options opt = new BitmapFactory.Options();
    opt.inJustDecodeBounds = true;//from www .  j  a v  a 2 s.  c  o  m
    BitmapFactory.decodeFile(pathName, opt);
    return opt.outMimeType;
}

From source file:Main.java

public static Bitmap decodeSampledBitmapFromFile(String file, int reqWidth, int reqHeight) {

    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;/*from w  w w .  ja v  a 2  s  .  c o m*/
    BitmapFactory.decodeFile(file, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeFile(file, options);
}

From source file:Main.java

private static WeakReference<Bitmap> cprsBmpBySize(String path, int rqsW, int rqsH) {
    if (TextUtils.isEmpty(path))
        return null;
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;//from   w  w  w .  j a va 2  s .  c o m
    BitmapFactory.decodeFile(path, options);
    options.inSampleSize = caculateInSampleSize(options, rqsW, rqsH);
    options.inJustDecodeBounds = false;
    return new WeakReference<Bitmap>(BitmapFactory.decodeFile(path, options));
}

From source file:Main.java

public static Bitmap decodeSampledBitmapFromFile(String pathFile, int reqWidth, int reqHeight) {

    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;// w  w w.j  a va 2 s .  com
    BitmapFactory.decodeFile(pathFile, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeFile(pathFile, options);
}

From source file:Main.java

public static Bitmap decodeBitmapFromPath(String srcPath, int reqWidth, int reqHeight) {
    // First decode with <code>inJustDecodeBounds = true</code> to check dimensions.
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;//from   w w w  .  j  av a2  s .c o m
    BitmapFactory.decodeFile(srcPath, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeFile(srcPath, options);
}