Example usage for android.graphics Bitmap createBitmap

Introduction

In this page you can find the example usage for android.graphics Bitmap createBitmap.

Prototype

public static Bitmap createBitmap(int width, int height, @NonNull Config config) 

Source Link

Document

Returns a mutable bitmap with the specified width and height.

Usage

From source file:Main.java

public static Bitmap subtract(Bitmap bitmap1, Bitmap bitmap2) {
    int width = bitmap1.getWidth();
    int height = bitmap1.getHeight();
    Bitmap grayBitmap1 = toGrayScale(bitmap1);
    Bitmap grayBitmap2 = toGrayScale(bitmap2);
    Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    for (int x = 0; x < width; x++)
        for (int y = 0; y < height; y++) {
            int value1 = Color.blue(grayBitmap1.getPixel(x, y));
            int value2 = Color.blue(grayBitmap2.getPixel(x, y));
            int resultValue = Math.abs(value2 - value1);
            //                resultValue = (resultValue>255/3)?resultValue:0;
            result.setPixel(x, y, Color.rgb(resultValue, resultValue, resultValue));
        }//  ww w  . j a va2 s.  co m
    //        grayBitmap1.recycle();
    //        grayBitmap2.recycle();
    return result;
}

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From source file:Main.java

public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, float roundPx) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    Bitmap output = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, w, h);
    final RectF rectF = new RectF(rect);
    paint.setAntiAlias(true);/*from  w  ww .  j av  a2  s.  c  om*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    return output;
}

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From source file:Main.java

public static Bitmap getFlippedBitmap(Resources res, int resId) {

    BitmapFactory.Options opt = new BitmapFactory.Options();
    opt.inJustDecodeBounds = true;//from  w w w  .  j a  v  a 2  s  .  c o m
    //Below line is necessary to fill in opt.outWidth, opt.outHeight
    Bitmap b = BitmapFactory.decodeResource(res, resId, opt);

    b = Bitmap.createBitmap(opt.outWidth, opt.outHeight, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(b);

    Matrix flipHorizontalMatrix = new Matrix();
    flipHorizontalMatrix.setScale(-1, 1);
    flipHorizontalMatrix.postTranslate(b.getWidth(), 0);

    Bitmap bb = BitmapFactory.decodeResource(res, resId);
    canvas.drawBitmap(bb, flipHorizontalMatrix, null);

    return b;
}

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From source file:Main.java

private static Bitmap buildBitmap(ArrayList<Bitmap> bitmaps) {
    if (bitmaps == null || bitmaps.size() == 0) {
        return null;
    }//from  ww w . jav  a2s  .c o  m
    int width = 0;
    int height = 0;
    for (int i = 0; i < bitmaps.size(); i++) {
        width = width + bitmaps.get(i).getWidth();
        height = Math.max(height, bitmaps.get(i).getHeight());
    }
    Bitmap resultBitmap = Bitmap.createBitmap(width, height, Config.ARGB_4444);
    int drawWidth = 0;
    Canvas canvas = new Canvas(resultBitmap);
    for (int j = 0; j < bitmaps.size(); j++) {
        drawWidth = j * bitmaps.get(j).getWidth();
        canvas.drawBitmap(bitmaps.get(j), drawWidth, 0, null);
    }
    return resultBitmap;
}

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From source file:Main.java

/**
 * Drawable convert to Bitmap//  ww  w  .j a  v  a  2 s  .  com
 */
public static Bitmap drawableToBitmap(Drawable drawable) {
    if (drawable == null) {

        throw new NullPointerException("drawableToBitmap()-->drawable is null.");
    }

    int width = drawable.getIntrinsicWidth();
    int height = drawable.getIntrinsicHeight();
    Bitmap bitmap = Bitmap.createBitmap(width, height,
            drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565);
    Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, width, height);
    drawable.draw(canvas);
    return bitmap;

}

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From source file:Main.java

public static Bitmap clipRoundCornerBitmap(Bitmap bitmap, float radius, int borderColor) {
    if (bitmap == null) {
        return null;
    }/*from  w ww .  j av  a 2s. co  m*/
    final int h = bitmap.getHeight();
    final int w = bitmap.getWidth();

    final Bitmap output = Bitmap.createBitmap(w, h, Config.ARGB_8888);

    final Canvas canvas = new Canvas(output);
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, w, h);
    final RectF rectF = new RectF(rect);

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(borderColor);
    canvas.drawRoundRect(rectF, radius, radius, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    return output;
}

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From source file:Main.java

public static Bitmap getRoundedCornerBitmap(Context context, Bitmap input, int dips, int w, int h,
        boolean squareTL, boolean squareTR, boolean squareBL, boolean squareBR) {

    Bitmap output = Bitmap.createBitmap(w, h, Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    final float densityMultiplier = context.getResources().getDisplayMetrics().density;

    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, w, h);
    final RectF rectF = new RectF(rect);

    //make sure that our rounded corner is scaled appropriately
    final float roundPx = dips * densityMultiplier;

    paint.setAntiAlias(true);/*ww  w. ja  v  a2 s  .c  o  m*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);

    //draw rectangles over the corners we want to be square
    if (squareTL) {
        canvas.drawRect(0, 0, w / 2, h / 2, paint);
    }
    if (squareTR) {
        canvas.drawRect(w / 2, 0, w, h / 2, paint);
    }
    if (squareBL) {
        canvas.drawRect(0, h / 2, w / 2, h, paint);
    }
    if (squareBR) {
        canvas.drawRect(w / 2, h / 2, w, h, paint);
    }

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(input, 0, 0, paint);

    return output;
}

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From source file:Main.java

public static Bitmap getRoundImage(Bitmap oriImg, boolean recycleOld) {

    Bitmap targetBitmap = null;//from   w w w . j a v  a 2  s. c  om

    if (oriImg != null && !oriImg.isRecycled()) {
        int size = Math.min(oriImg.getWidth(), oriImg.getHeight());
        int targetWidth = size;
        int targetHeight = size;

        targetBitmap = Bitmap.createBitmap(targetWidth, targetHeight, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(targetBitmap);

        Paint paint = new Paint();
        paint.setAntiAlias(true);
        paint.setFilterBitmap(true);
        canvas.drawARGB(0, 0, 0, 0);
        canvas.drawCircle(targetWidth / 2f, targetHeight / 2f, targetWidth / 2f, paint);

        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(oriImg, new Rect(0, 0, size, size), new Rect(0, 0, targetWidth, targetHeight), paint);

        if (recycleOld) {
            oriImg.recycle();
        }
    }
    return targetBitmap;
}

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From source file:Main.java

private static Bitmap drawableToBitMap(Drawable drawable) {
    if (drawable == null) {
        return null;
    }/* w  ww.  j  ava  2 s  . c  o  m*/
    if (drawable instanceof BitmapDrawable) {
        BitmapDrawable bitmapDrawable = ((BitmapDrawable) drawable);
        return bitmapDrawable.getBitmap();
    } else {
        Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(),
                drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565);
        Canvas canvas = new Canvas(bitmap);
        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
        drawable.draw(canvas);
        return bitmap;
    }
}

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From source file:Main.java

/**
 * Returns semi-rounded bitmap. This is used for displaying atn promotion images.
 * //  w w  w.  j  a  v a 2  s  .co m
 * @param context
 * @param input
 * @return
 */
public static Bitmap getSemiRoundedBitmap(Context context, Bitmap input) {
    Bitmap output = Bitmap.createBitmap(input.getWidth(), input.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    final float densityMultiplier = context.getResources().getDisplayMetrics().density;
    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, input.getWidth(), input.getHeight());
    final RectF rectF = new RectF(rect);
    //make sure that our rounded corner is scaled appropriately
    final float roundPx = densityMultiplier * 10;
    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    //draw rectangles over the corners we want to be square
    canvas.drawRect(input.getWidth() / 2, 0, input.getWidth(), input.getHeight() / 2, paint);
    canvas.drawRect(input.getWidth() / 2, input.getHeight() / 2, input.getWidth(), input.getHeight(), paint);
    paint.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(input, 0, 0, paint);
    input.recycle();

    return output;
}

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