Example usage for android.graphics Paint DITHER_FLAG

Introduction

In this page you can find the example usage for android.graphics Paint DITHER_FLAG.

Prototype

int DITHER_FLAG

To view the source code for android.graphics Paint DITHER_FLAG.

Click Source Link

Document

Paint flag that enables dithering when blitting.

Usage

From source file:Main.java

private static Bitmap resizeBitmapByScale(final Bitmap bitmap, final float scale, final boolean recycle) {
    final int width = Math.round(bitmap.getWidth() * scale);
    final int height = Math.round(bitmap.getHeight() * scale);
    if (width == bitmap.getWidth() && height == bitmap.getHeight())
        return bitmap;
    final Bitmap target = Bitmap.createBitmap(width, height, getConfig(bitmap));
    final Canvas canvas = new Canvas(target);
    canvas.scale(scale, scale);/*w w w  .ja v a2  s  .com*/
    final Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
    canvas.drawBitmap(bitmap, 0, 0, paint);
    if (recycle) {
        bitmap.recycle();
    }
    return target;
}

---

From source file:Main.java

public static Bitmap resizeAndCropCenter(Bitmap bitmap, int size, boolean recycle) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    if (w == size && h == size)
        return bitmap;

    // scale the image so that the shorter side equals to the target;
    // the longer side will be center-cropped.
    float scale = (float) size / Math.min(w, h);

    Bitmap target = Bitmap.createBitmap(size, size, getConfig(bitmap));
    int width = Math.round(scale * bitmap.getWidth());
    int height = Math.round(scale * bitmap.getHeight());
    Canvas canvas = new Canvas(target);
    canvas.translate((size - width) / 2f, (size - height) / 2f);
    canvas.scale(scale, scale);/*www . java 2  s  .  c  om*/
    Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
    canvas.drawBitmap(bitmap, 0, 0, paint);
    if (recycle)
        bitmap.recycle();
    return target;
}

---

From source file:Main.java

public static Bitmap resizeDownAndCropCenter(Bitmap bitmap, int size, boolean recycle) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    int minSide = Math.min(w, h);
    if (w == h && minSide <= size)
        return bitmap;
    size = Math.min(size, minSide);

    float scale = Math.max((float) size / bitmap.getWidth(), (float) size / bitmap.getHeight());
    Bitmap target = Bitmap.createBitmap(size, size, getConfig(bitmap));
    int width = Math.round(scale * bitmap.getWidth());
    int height = Math.round(scale * bitmap.getHeight());
    Canvas canvas = new Canvas(target);
    canvas.translate((size - width) / 2f, (size - height) / 2f);
    canvas.scale(scale, scale);//w ww . j a  v  a 2s  . c  om
    Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
    canvas.drawBitmap(bitmap, 0, 0, paint);
    if (recycle)
        bitmap.recycle();
    return target;
}

---

From source file:Main.java

public static Bitmap resizeBitmapByScale(Bitmap bitmap, float scale, boolean recycle) {
    int width = Math.round(bitmap.getWidth() * scale);
    int height = Math.round(bitmap.getHeight() * scale);
    if (width == bitmap.getWidth() && height == bitmap.getHeight())
        return bitmap;
    Bitmap target = Bitmap.createBitmap(width, height, getConfig(bitmap));
    Canvas canvas = new Canvas(target);
    canvas.scale(scale, scale);//from ww  w. j a v a2 s.c o m
    Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
    canvas.drawBitmap(bitmap, 0, 0, paint);
    if (recycle)
        bitmap.recycle();
    return target;
}

---

From source file:Main.java

public static Bitmap resizeBitmapByScale(final Bitmap bitmap, final float scale, final boolean recycle) {
    final int width = Math.round(bitmap.getWidth() * scale);
    final int height = Math.round(bitmap.getHeight() * scale);
    if (width == bitmap.getWidth() && height == bitmap.getHeight())
        return bitmap;
    final Bitmap target = Bitmap.createBitmap(width, height, getConfig(bitmap));
    final Canvas canvas = new Canvas(target);
    canvas.scale(scale, scale);//from w w w . j  a va2  s .  c om
    final Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
    canvas.drawBitmap(bitmap, 0, 0, paint);
    if (recycle) {
        bitmap.recycle();
    }
    return target;
}

---

From source file:Main.java

public static Bitmap resizeAndCropCenterExt(Bitmap bitmap, int size, boolean recycle) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    if (w == size && h == size)
        return bitmap;

    // scale the image so that the shorter side equals to the target;
    // the longer side will be center-cropped.
    float scale = (float) size / Math.min(w, h);

    int width = Math.round(scale * bitmap.getWidth());
    int height = Math.round(scale * bitmap.getHeight());
    if (width > height) {
        int largeSize = (int) (width <= size * 1.5 ? width : size * 1.5);
        Bitmap target = Bitmap.createBitmap(largeSize, size, getConfig(bitmap));
        Canvas canvas = new Canvas(target);
        canvas.translate((largeSize - width) / 2f, (size - height) / 2f);
        canvas.scale(scale, scale);/* w ww .j a  v  a  2 s.c om*/
        Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
        canvas.drawBitmap(bitmap, 0, 0, paint);
        if (recycle)
            bitmap.recycle();
        return target;
    } else {
        int largeSize = (int) (height <= size * 1.5 ? height : size * 1.5);
        Bitmap target = Bitmap.createBitmap(size, largeSize, getConfig(bitmap));
        Canvas canvas = new Canvas(target);
        canvas.translate((size - width) / 2f, (largeSize - height) / 2f);
        canvas.scale(scale, scale);
        Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
        canvas.drawBitmap(bitmap, 0, 0, paint);
        if (recycle)
            bitmap.recycle();
        return target;
    }
}

---

From source file:Main.java

/**
 * Returns a Bitmap representing the thumbnail of the specified Bitmap. The
 * size of the thumbnail is defined by the dimension
 * android.R.dimen.launcher_application_icon_size.
 * <p>/*from   w  w  w .  j  a v a 2 s  . c  o  m*/
 * This method is not thread-safe and should be invoked on the UI thread
 * only.
 *
 * @param bitmap  The bitmap to get a thumbnail of.
 * @param context The application's context.
 * @return A thumbnail for the specified bitmap or the bitmap itself if the
 * thumbnail could not be created.
 */
public static Bitmap createThumbnailBitmap(Bitmap bitmap, Context context) {
    int sIconWidth = -1;
    int sIconHeight = -1;
    final Resources resources = context.getResources();
    sIconWidth = sIconHeight = (int) resources.getDimension(android.R.dimen.app_icon_size);

    final Paint sPaint = new Paint();
    final Rect sBounds = new Rect();
    final Rect sOldBounds = new Rect();
    Canvas sCanvas = new Canvas();

    int width = sIconWidth;
    int height = sIconHeight;

    sCanvas.setDrawFilter(new PaintFlagsDrawFilter(Paint.DITHER_FLAG, Paint.FILTER_BITMAP_FLAG));

    final int bitmapWidth = bitmap.getWidth();
    final int bitmapHeight = bitmap.getHeight();

    if (width > 0 && height > 0) {
        if (width < bitmapWidth || height < bitmapHeight) {
            final float ratio = (float) bitmapWidth / bitmapHeight;

            if (bitmapWidth > bitmapHeight) {
                height = (int) (width / ratio);
            } else if (bitmapHeight > bitmapWidth) {
                width = (int) (height * ratio);
            }

            final Config c = (width == sIconWidth && height == sIconHeight) ? bitmap.getConfig()
                    : Config.ARGB_8888;
            final Bitmap thumb = Bitmap.createBitmap(sIconWidth, sIconHeight, c);
            final Canvas canvas = sCanvas;
            final Paint paint = sPaint;
            canvas.setBitmap(thumb);
            paint.setDither(false);
            paint.setFilterBitmap(true);
            sBounds.set((sIconWidth - width) / 2, (sIconHeight - height) / 2, width, height);
            sOldBounds.set(0, 0, bitmapWidth, bitmapHeight);
            canvas.drawBitmap(bitmap, sOldBounds, sBounds, paint);
            return thumb;
        } else if (bitmapWidth < width || bitmapHeight < height) {
            final Config c = Config.ARGB_8888;
            final Bitmap thumb = Bitmap.createBitmap(sIconWidth, sIconHeight, c);
            final Canvas canvas = sCanvas;
            final Paint paint = sPaint;
            canvas.setBitmap(thumb);
            paint.setDither(false);
            paint.setFilterBitmap(true);
            canvas.drawBitmap(bitmap, (sIconWidth - bitmapWidth) / 2, (sIconHeight - bitmapHeight) / 2, paint);
            return thumb;
        }
    }

    return bitmap;
}

---

From source file:Main.java

/**
 * This is only used when the launcher shortcut is created.
 * // www.j av  a2 s .  co m
 * @param bitmap The artist, album, genre, or playlist image that's going to
 *            be cropped.
 * @param size The new size.
 * @return A {@link Bitmap} that has been resized and cropped for a launcher
 *         shortcut.
 */
public static final Bitmap resizeAndCropCenter(final Bitmap bitmap, final int size) {
    Bitmap blurbitmap = null;

    final int w = bitmap.getWidth();
    final int h = bitmap.getHeight();
    if (w == size && h == size) {
        return bitmap;
    }

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    bitmap.compress(CompressFormat.PNG, 0 /*ignored for PNG*/, bos);
    byte[] bitmapdata = bos.toByteArray();
    ByteArrayInputStream bs = new ByteArrayInputStream(bitmapdata);

    try {
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inSampleSize = 8;
        options.inJustDecodeBounds = true;
        blurbitmap = BitmapFactory.decodeStream(bs, null, options);
        options.inJustDecodeBounds = false;

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (bs != null) {
            try {
                bs.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    final float mScale = (float) size / Math.min(w, h);

    final Bitmap mTarget = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
    final int mWidth = Math.round(mScale * blurbitmap.getWidth());
    final int mHeight = Math.round(mScale * blurbitmap.getHeight());
    final Canvas mCanvas = new Canvas(mTarget);
    mCanvas.translate((size - mWidth) / 2f, (size - mHeight) / 2f);
    mCanvas.scale(mScale, mScale);
    final Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
    mCanvas.drawBitmap(bitmap, 0, 0, paint);
    return mTarget;

}

---

From source file:android.support.design.widget.ShadowDrawableWrapper.java

public ShadowDrawableWrapper(Context context, Drawable content, float radius, float shadowSize,
        float maxShadowSize) {
    super(content);

    mShadowStartColor = ContextCompat.getColor(context, R.color.design_fab_shadow_start_color);
    mShadowMiddleColor = ContextCompat.getColor(context, R.color.design_fab_shadow_mid_color);
    mShadowEndColor = ContextCompat.getColor(context, R.color.design_fab_shadow_end_color);

    mCornerShadowPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
    mCornerShadowPaint.setStyle(Paint.Style.FILL);
    mCornerRadius = Math.round(radius);
    mContentBounds = new RectF();
    mEdgeShadowPaint = new Paint(mCornerShadowPaint);
    mEdgeShadowPaint.setAntiAlias(false);
    setShadowSize(shadowSize, maxShadowSize);
}

---

From source file:me.lizheng.deckview.helpers.FakeShadowDrawable.java

public FakeShadowDrawable(Context context, DeckViewConfig config) {
    mShadowStartColor = ContextCompat.getColor(context, R.color.fake_shadow_start_color);
    mShadowEndColor = ContextCompat.getColor(context, R.color.fake_shadow_end_color);
    mInsetShadow = context.getResources().getDimension(R.dimen.fake_shadow_inset);
    setShadowSize(context.getResources().getDimensionPixelSize(R.dimen.fake_shadow_size),
            context.getResources().getDimensionPixelSize(R.dimen.fake_shadow_size));
    mCornerShadowPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
    mCornerShadowPaint.setStyle(Paint.Style.FILL);
    mCornerShadowPaint.setDither(true);// w ww.  j  a  va2 s.  c  o  m
    mCornerRadius = config.taskViewRoundedCornerRadiusPx;
    mCardBounds = new RectF();
    mEdgeShadowPaint = new Paint(mCornerShadowPaint);
}

---

• «
• 1
• 2
• 3
• »