Example usage for android.graphics BitmapFactory decodeResource

Introduction

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

Prototype

public static Bitmap decodeResource(Resources res, int id, Options opts)

Source Link

Document

Synonym for opening the given resource and calling #decodeResourceStream .

Usage

From source file:Main.java

public static Bitmap getBitmapFromResource(Context context, int id, int height, int width) {
    Options options = new Options();
    options.inJustDecodeBounds = true;/* www .j av  a  2s. c  o m*/
    BitmapFactory.decodeResource(context.getResources(), id, options);
    options.inSampleSize = calculateSampleSize(height, width, options);
    options.inJustDecodeBounds = false;
    Bitmap bitmap;
    bitmap = BitmapFactory.decodeResource(context.getResources(), id, options);
    return bitmap;
}

From source file:Main.java

public static Bitmap drawableTobitmap(int bmpid, Context ctx) {
    Resources res = ctx.getResources();
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inSampleSize = 1;//from w  ww .  ja v a2  s  . c o m
    return BitmapFactory.decodeResource(res, bmpid, options);
}

From source file:Main.java

public static Bitmap getRGB565Bitmap(int resource_id, Context context) {
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;/*from   w w w. j a v  a  2 s.  com*/
    BitmapFactory.decodeResource(context.getResources(), resource_id, options);
    int ratio = calculateInSampleSize(options, context.getResources().getDisplayMetrics().widthPixels,
            context.getResources().getDisplayMetrics().heightPixels);
    options.inSampleSize = ratio;
    options.inPreferredConfig = Bitmap.Config.RGB_565;
    options.inJustDecodeBounds = false;
    options.inPurgeable = true;
    return BitmapFactory.decodeResource(context.getResources(), resource_id, options);
}

From source file:Main.java

public static Bitmap decodeFile(Context context, int resId) {
    // decode image size
    BitmapFactory.Options o = new BitmapFactory.Options();
    o.inJustDecodeBounds = true;//from   w ww  .  j  a  va2s  .  co  m
    BitmapFactory.decodeResource(context.getResources(), resId, o);
    // Find the correct scale value. It should be the power of 2.
    final int REQUIRED_SIZE = 50;
    int width_tmp = o.outWidth, height_tmp = o.outHeight;
    int scale = 1;
    while (true) {
        if (width_tmp / 2 < REQUIRED_SIZE || height_tmp / 2 < REQUIRED_SIZE)
            break;
        width_tmp /= 2;
        height_tmp /= 2;
        scale++;
    }
    // decode with inSampleSize
    BitmapFactory.Options o2 = new BitmapFactory.Options();
    o2.inSampleSize = scale;
    return BitmapFactory.decodeResource(context.getResources(), resId, o2);
}

From source file:Main.java

public static Bitmap ReadBitmapById(Context mContext, int resId, int mWindth, int mSurfaceHeight) {
    Options opts = new Options();
    opts.outWidth = mWindth;// w  w w  . j  a v  a 2 s. c o m
    opts.outHeight = mSurfaceHeight;
    Bitmap bitmap = BitmapFactory.decodeResource(mContext.getResources(), resId, opts);
    return bitmap;
}

From source file:Main.java

public static Bitmap decodeQRCode(Resources res, int resId, int inSampleSize) {
    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;/*from ww  w  .ja va 2  s  . c  o m*/
    BitmapFactory.decodeResource(res, resId, options);

    // Calculate inSampleSize
    options.inSampleSize = inSampleSize;

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeResource(res, resId, options);
}

From source file:Main.java

public static Bitmap getBitmapFromName(Context context, String resName) {
    opt.inPurgeable = true;/*from   w  w  w.ja  v a 2s.  c  om*/
    int resID = context.getResources().getIdentifier(resName, "drawable", context.getPackageName());
    return BitmapFactory.decodeResource(context.getResources(), resID, opt);
}

From source file:Main.java

public static Bitmap decodeSampleBitMapFromResource(Context context, int resId, int reqWidth, int reqHeight) {
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;//from w  w w.  j a v a 2s  .  c  o  m
    BitmapFactory.decodeResource(context.getResources(), resId, options);
    options = sampleBitmapOptions(context, options, reqWidth, reqHeight);
    Bitmap bm = BitmapFactory.decodeResource(context.getResources(), resId, options);
    Log.e("xxx", bm.getByteCount() + "");
    return bm;
}

From source file:Main.java

public static Bitmap imageResourceToBitmap(Context c, int res, int maxDim) {
    Bitmap bmp = null;/*  w  w w. j  a  va 2  s . c om*/
    BitmapFactory.Options opts = new BitmapFactory.Options();
    opts.inJustDecodeBounds = true;
    // compute the smallest size bitmap we need to read
    BitmapFactory.decodeResource(c.getResources(), res, opts);
    int w = opts.outWidth;
    int h = opts.outHeight;
    int s = 1;
    while (true) {
        if ((w / 2 < maxDim) || (h / 2 < maxDim)) {
            break;
        }
        w /= 2;
        h /= 2;
        s++;
    }
    // scale and read the data
    opts.inJustDecodeBounds = false;
    opts.inPurgeable = true;
    opts.inSampleSize = s;
    bmp = BitmapFactory.decodeResource(c.getResources(), res, opts);
    return bmp;
}

From source file:Main.java

public static Bitmap loadResource(Context context, int resourceId) {

    Resources resources = context.getResources();

    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inDensity = resources.getDisplayMetrics().densityDpi;
    options.inPurgeable = true;//from  w w w  .j  a v a2 s .co m

    return BitmapFactory.decodeResource(resources, resourceId, options);
}