Example usage for android.graphics Bitmap createScaledBitmap

Introduction

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

Prototype

public static Bitmap createScaledBitmap(@NonNull Bitmap src, int dstWidth, int dstHeight, boolean filter)

Source Link

Document

Creates a new bitmap, scaled from an existing bitmap, when possible.

Usage

From source file:Main.java

public static int getAverageColor(@NonNull Bitmap bitmap) {
    Bitmap onePixelBitmap = Bitmap.createScaledBitmap(bitmap, 1, 1, true);
    int color = onePixelBitmap.getPixel(0, 0);
    onePixelBitmap.recycle();/* w  w  w . j av  a 2s. c  o m*/
    return color;
}

From source file:Main.java

private static byte[] resizeImage(byte[] input, int length) {
    Bitmap original = BitmapFactory.decodeByteArray(input, 0, input.length);
    Bitmap resized = Bitmap.createScaledBitmap(original, length, length, true);

    ByteArrayOutputStream blob = new ByteArrayOutputStream();
    resized.compress(Bitmap.CompressFormat.JPEG, 100, blob);

    return blob.toByteArray();
}

From source file:Main.java

public static Bitmap getScaled(Bitmap bm, int sidePx, boolean max) {
    float w = bm.getWidth();
    float h = bm.getHeight();
    float wRatio = sidePx / w;
    float hRatio = sidePx / h;
    float ratio = max ? Math.min(wRatio, hRatio) : Math.max(wRatio, hRatio);
    w = ratio * w;//from w  w w.  ja  v a  2  s  .  co m
    h = ratio * h;
    return Bitmap.createScaledBitmap(bm, (int) w, (int) h, true);
}

From source file:Main.java

public static ImageButton makeImageButton(Context context, int id, int resId, int width, int height,
        OnClickListener onClickListener, OnTouchListener onTouchListener) {
    Drawable icon;/*ww  w.  jav a2  s .  c  om*/
    ImageButton button = new ImageButton(context);
    button.setId(id);
    if (onClickListener != null)
        button.setOnClickListener(onClickListener);
    button.setBackgroundColor(Color.TRANSPARENT);
    icon = context.getResources().getDrawable(resId);
    icon.setBounds(0, 0, width, height);

    Bitmap iconBitmap = ((BitmapDrawable) icon).getBitmap();
    Bitmap bitmapResized = Bitmap.createScaledBitmap(iconBitmap, width, height, false);
    button.setImageBitmap(bitmapResized);
    button.setVisibility(View.VISIBLE);
    if (onTouchListener != null)
        button.setOnTouchListener(onTouchListener);
    return button;
}

From source file:Main.java

public static Bitmap scaleBitmap(Bitmap src, int maxWidth, int maxHeight) {
    if (src == null)
        return null;
    double scaleFactor = Math.min(((double) maxWidth) / src.getWidth(), ((double) maxHeight) / src.getHeight());
    return Bitmap.createScaledBitmap(src, (int) (src.getWidth() * scaleFactor),
            (int) (src.getHeight() * scaleFactor), false);
}

From source file:Main.java

public static Bitmap resizeBitmap(Bitmap src, int ratio) {
    if (src == null)
        return null;

    int width = src.getWidth();
    int height = src.getHeight();

    return Bitmap.createScaledBitmap(src, width * ratio, height * ratio, false);
}

From source file:Main.java

public static Bitmap formatUserAvatar(Bitmap photo) {
    int maskColor = 0xff424242;
    Paint cornerPaint = new Paint();
    cornerPaint.setAntiAlias(true);//from  w ww . j a  va  2s.c  o m
    cornerPaint.setColor(maskColor);
    Rect roundedCornerRect = new Rect(0, 0, 256, 256);
    RectF roundedCornerRectF = new RectF(roundedCornerRect);
    Bitmap roundedCornerBitmap = Bitmap.createBitmap(256, 256, Bitmap.Config.ARGB_8888);
    Canvas roundedCornerCanvas = new Canvas(roundedCornerBitmap);
    roundedCornerCanvas.drawARGB(0, 0, 0, 0);
    roundedCornerCanvas.drawRoundRect(roundedCornerRectF, 128, 128, cornerPaint);
    cornerPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    Bitmap scaledBitmap = Bitmap.createScaledBitmap(photo, 256, 256, true);
    roundedCornerCanvas.drawBitmap(scaledBitmap, roundedCornerRect, roundedCornerRect, cornerPaint);
    return roundedCornerBitmap;
}

From source file:Main.java

public static Bitmap decodeBitmapFromFileToSize(String filePath, int reqWidth, int reqHeight,
        boolean maintainAspectRatio) {
    Bitmap original = BitmapFactory.decodeFile(filePath);
    if (original == null) {
        return null;
    }/*from  w w w  . jav  a  2s . c o m*/
    if (original.getWidth() == reqWidth || original.getHeight() == reqHeight) {
        return original;
    }

    if (maintainAspectRatio) {
        int oriWidth = original.getWidth(), oriHeight = original.getHeight();
        if (oriWidth >= oriHeight) {
            float aRatio = (float) oriHeight / (float) oriWidth;
            reqHeight = (int) (reqWidth * aRatio);
        } else if (oriHeight > oriWidth) {
            float aRatio = (float) oriWidth / (float) oriHeight;
            reqWidth = (int) (reqHeight * aRatio);
        }
    }

    Bitmap scaled = Bitmap.createScaledBitmap(original, reqWidth, reqHeight, false);
    if (scaled == null) {
        return original;
    }
    if (scaled != original) {
        original.recycle();
        original = null;
    }
    return scaled;
}

From source file:Main.java

/**
 * This method gets the contact image from the phone book.
 * //from  w  w  w.  j  a v a  2 s .  c  o  m
 * @param context
 * @param imageUri
 * @return Contact's image or null
 */
public static Bitmap getByteContactImage(Context context, String imageUri, int pixel) {
    if (imageUri == null) {
        return null;
    }
    if (imageUri != null) {
        try {
            Uri image_Uri = Uri.parse(imageUri);
            Bitmap bitmap = MediaStore.Images.Media.getBitmap(context.getContentResolver(), image_Uri);
            bitmap = Bitmap.createScaledBitmap(bitmap, pixel, pixel, false);
            return getRoundedCornerBitmap(bitmap, pixel);
        } catch (IOException e) {
            Log.e("EPollUtil", e.getLocalizedMessage());
        }
    }

    return null;
}

From source file:Main.java

public static Bitmap forceEvenBitmapSize(Bitmap original) {
    int width = original.getWidth();
    int height = original.getHeight();

    if (width % 2 == 1) {
        width++;/*from   w  ww.  j  a v a2 s  .c  om*/
    }
    if (height % 2 == 1) {
        height++;
    }

    Bitmap fixedBitmap = original;
    if (width != original.getWidth() || height != original.getHeight()) {
        fixedBitmap = Bitmap.createScaledBitmap(original, width, height, false);
    }

    if (fixedBitmap != original) {
        original.recycle();
    }

    return fixedBitmap;
}