Example usage for android.graphics Canvas drawBitmap

Introduction

In this page you can find the example usage for android.graphics Canvas drawBitmap.

Prototype

public void drawBitmap(@NonNull Bitmap bitmap, @Nullable Rect src, @NonNull Rect dst, @Nullable Paint paint) 

Source Link

Document

Draw the specified bitmap, scaling/translating automatically to fill the destination rectangle.

Usage

From source file:Main.java

public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, float roundPx) {

    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
    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);

    paint.setAntiAlias(true);//from   w ww. ja v  a  2  s. c om
    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);

    return output;
}

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From source file:Main.java

public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, float roundPx) {
    if (bitmap == null) {
        return null;
    }/*from   ww w.jav  a2s  .  c  o m*/
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), 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, bitmap.getWidth(), bitmap.getHeight());
    final RectF rectF = new RectF(rect);
    paint.setAntiAlias(true);
    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 toRoundCorner(Bitmap bitmap, int pixels, PorterDuff.Mode mode) {
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    final int color = 0xffffffff;
    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);/*from w  ww .  j  a va 2  s . c  om*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    paint.setXfermode(new PorterDuffXfermode(mode));
    canvas.drawBitmap(bitmap, rect, rect, paint);
    return output;
}

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From source file:Main.java

public static Bitmap scrambleImage(Bitmap image, int piecesPerLine) {
    int px = (int) Math.ceil(image.getWidth() / (double) piecesPerLine);
    int ph = (int) Math.ceil(image.getHeight() / (double) piecesPerLine);
    int count = piecesPerLine * piecesPerLine;
    int[] arr = shuffle(arrayRange(count));

    Config config = image.getConfig() == null ? Bitmap.Config.ARGB_8888 : image.getConfig();
    Bitmap destBmp = Bitmap.createBitmap(image.getWidth(), image.getHeight(), config);
    Canvas canvas = new Canvas(destBmp);

    for (int i = 0; i < piecesPerLine; i++) {
        for (int j = 0; j < piecesPerLine; j++) {
            int n = arr[i * piecesPerLine + j];
            int row = n / piecesPerLine;
            int col = n % piecesPerLine;

            Rect fromRect = new Rect(row * px, col * ph, row * px + px, col * ph + ph);
            Rect toRect = new Rect(j * px, i * ph, j * px + px, i * ph + ph);

            canvas.drawBitmap(image, fromRect, toRect, null);
        }/*from www  . j a v  a 2 s. co m*/
    }

    return destBmp;
}

---

From source file:com.dm.material.dashboard.candybar.helpers.DrawableHelper.java

@Nullable
public static Drawable getDefaultImage(@NonNull Context context, @DrawableRes int res) {
    try {//from   ww  w.  j a v  a  2s . c o m
        int color = ColorHelper.getAttributeColor(context, android.R.attr.textColorSecondary);
        int padding = context.getResources().getDimensionPixelSize(R.dimen.default_image_padding);

        Drawable drawable = AppCompatDrawableManager.get().getDrawable(context, res);
        drawable.setColorFilter(color, PorterDuff.Mode.SRC_IN);
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            drawable = (DrawableCompat.wrap(drawable)).mutate();
        }

        Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(),
                Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
        drawable.draw(canvas);

        Bitmap tintedBitmap = Bitmap.createBitmap(bitmap.getWidth() + padding, bitmap.getHeight() + padding,
                Bitmap.Config.ARGB_8888);
        Canvas tintedCanvas = new Canvas(tintedBitmap);
        int background = ColorHelper.getAttributeColor(context, R.attr.card_background);
        Paint paint = new Paint();
        paint.setFilterBitmap(true);
        paint.setAntiAlias(true);
        tintedCanvas.drawColor(background, PorterDuff.Mode.ADD);
        tintedCanvas.drawBitmap(bitmap, (tintedCanvas.getWidth() - bitmap.getWidth()) / 2,
                (tintedCanvas.getHeight() - bitmap.getHeight()) / 2, paint);
        return new BitmapDrawable(context.getResources(), tintedBitmap);
    } catch (Exception | OutOfMemoryError e) {
        return null;
    }
}

---

From source file:Main.java

public static Bitmap toRoundCorner(Bitmap bitmap, int pixels) {
    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);//from ww  w.  ja  v a2 s .c  o  m
    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);
    return output;
}

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From source file:Main.java

public static Bitmap toRoundCorner(Bitmap bitmap, int pixels) {
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
    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);//www  .  j  ava  2 s .  co  m
    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);
    return output;
}

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From source file:Main.java

public static Bitmap createCircleBitmap(Bitmap bitmap) {
    if (bitmap == null) {
        return null;
    }/*from  w w  w. j a  v  a2s.c  o  m*/

    int bmWidth = bitmap.getWidth();
    int bmHeight = bitmap.getHeight();
    int side = bmWidth < bmHeight ? bmWidth : bmHeight;
    int x = (bmWidth - side) / 2;
    int y = (bmHeight - side) / 2;
    Bitmap newBm = Bitmap.createBitmap(side, side, Bitmap.Config.ARGB_8888);
    if (newBm != null) {
        Canvas canvas = new Canvas(newBm);
        Paint paint = new Paint();
        paint.setAntiAlias(true);
        paint.setFilterBitmap(true);
        paint.setDither(true);

        Rect rect = new Rect(0, 0, newBm.getWidth(), newBm.getHeight());
        canvas.drawARGB(0, 0, 0, 0);
        canvas.drawCircle(newBm.getWidth() / 2, newBm.getHeight() / 2, newBm.getHeight() / 2, paint);
        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);

        return newBm;
    }
    return null;
}

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From source file:Main.java

public static Bitmap circleBitmap(Bitmap source, boolean recycle) {
    if (source == null) {
        return null;
    }//from w w w. j  av  a2 s.c  om

    // Create custom bitmap
    Bitmap output = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    // Compute sizes
    final int color = Color.RED;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, source.getWidth(), source.getHeight());
    final RectF rectF = new RectF(rect);

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawOval(rectF, paint);

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

    if (recycle) {
        source.recycle();
    }

    return output;
}

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From source file:Main.java

public static Bitmap toRoundCorner(Bitmap bitmap, int pixels) {
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
    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);//ww w .j  av a 2s  .co  m
    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);

    return output;
}

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