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:com.VVTeam.ManHood.Fragment.HistogramFragment.java

private Bitmap makeSnapshot() {

    contentRelative.setDrawingCacheEnabled(true);
    contentRelative.buildDrawingCache();
    Bitmap bm = contentRelative.getDrawingCache();

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

    Bitmap background = BitmapFactory.decodeResource(getResources(), R.drawable.histogram_bg);
    Bitmap logo = BitmapFactory.decodeResource(getResources(), R.drawable.manhoodlogo);

    Bitmap cs = null;/*ww w .ja  v  a  2 s  . c om*/

    cs = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    Canvas comboImage = new Canvas(cs);

    Rect src = new Rect(0, 0, background.getWidth() - 1, background.getHeight() - 1);
    Rect dest = new Rect(0, 0, width - 1, height - 1);
    comboImage.drawBitmap(background, src, dest, null);
    comboImage.drawBitmap(bm, 0f, 0f, null);
    comboImage.drawBitmap(logo, 7.0f, height - logo.getHeight() - 4.0f, null);

    return cs;
}

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From source file:com.augustopicciani.drawablepageindicator.widget.DrawablePagerIndicator.java

/**
 * @param canvas// w w w. j a  va2  s . c o m
 */

@Override
protected void onDraw(Canvas canvas) {

    super.onDraw(canvas);
    if (mViewPager == null) {
        return;
    }
    final int count = mViewPager.getAdapter().getCount();
    if (count == 0) {
        return;
    }

    if (mCurrentPage >= count) {
        setCurrentItem(count - 1);
        return;
    }
    float dx = -1;
    Bitmap imageChildDefault = BitmapFactory.decodeResource(mContext.getResources(), drawableDefaultId);
    Bitmap imageChildSelected = BitmapFactory.decodeResource(mContext.getResources(), drawableSelectedId);
    Bitmap imageToDraw;
    int imageSize = imageChildDefault.getWidth();
    int canvasWidth = canvas.getWidth();
    int circlesWith = (imageSize * count) + imageSpacing * (count - 1);
    int startingPoint = (canvasWidth - circlesWith) / 2;
    for (int i = 0; i < count; i++) {

        if (i == 0) {
            dx = 0;
        }
        /**
         * position images indicator on the center
         */
        if (mCentered) {
            dx = startingPoint + i * (imageSize + imageSpacing);
        }

        if (mCurrentPage == i) {
            imageToDraw = imageChildSelected;

        } else {
            imageToDraw = imageChildDefault;
        }
        canvas.drawBitmap(imageToDraw, dx, 0, null);

        /**
         * position images indicator from the left
         */
        if (!mCentered) {
            dx += imageChildDefault.getWidth() + imageSpacing;
        }
    }
}

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From source file:com.example.sergey.currentweather.ui.fragment.MainFragment.java

private void initSwipe() {
    ItemTouchHelper.SimpleCallback simpleItemTouchCallback = new ItemTouchHelper.SimpleCallback(0,
            ItemTouchHelper.LEFT) {/*  w  w  w .j a  v a2  s  . co  m*/

        @Override
        public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder,
                RecyclerView.ViewHolder target) {
            return false;
        }

        @Override
        public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
            int position = viewHolder.getAdapterPosition();
            if (direction == ItemTouchHelper.LEFT) {
                deleteData(mCityListAdapter.removeItem(position));
            }
        }

        @Override
        public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder,
                float dX, float dY, int actionState, boolean isCurrentlyActive) {
            Bitmap icon;
            if (actionState == ItemTouchHelper.ACTION_STATE_SWIPE) {
                View itemView = viewHolder.itemView;
                float height = (float) itemView.getBottom() - (float) itemView.getTop();
                float width = height / 3;
                if (dX < 0) {
                    mPoint.setColor(Color.parseColor("#D32F2F"));
                    RectF background = new RectF((float) itemView.getRight() + dX, (float) itemView.getTop(),
                            (float) itemView.getRight(), (float) itemView.getBottom());
                    c.drawRect(background, mPoint);
                    icon = BitmapFactory.decodeResource(getResources(), R.drawable.ic_delete_white);
                    RectF icon_dest = new RectF((float) itemView.getRight() - 2 * width,
                            (float) itemView.getTop() + width, (float) itemView.getRight() - width,
                            (float) itemView.getBottom() - width);
                    c.drawBitmap(icon, null, icon_dest, mPoint);
                }
            }
            super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
        }
    };
    ItemTouchHelper itemTouchHelper = new ItemTouchHelper(simpleItemTouchCallback);
    itemTouchHelper.attachToRecyclerView(mRecyclerView);
}

---

From source file:com.example.SmartBoard.DrawingView.java

public void onDragDraw(Canvas canvas, int x, int y) {

    canvas.drawBitmap(dragImage, x, y - 20, drawPaint);

}

---

From source file:au.com.zacher.popularmovies.activity.layout.CollapsingTitleLayout.java

@Override
public void draw(@NonNull Canvas canvas) {
    final int saveCount = canvas.save();

    final int toolbarHeight = this.mToolbar.getHeight();
    canvas.clipRect(0, 0, canvas.getWidth(),
            interpolate(canvas.getHeight(), toolbarHeight, this.mScrollOffset));

    // Now call super and let it draw the background, etc
    super.draw(canvas);

    if (this.mTitleToDraw != null) {
        float x = this.mTextLeft;
        float y = this.mTextTop;

        final float ascent = this.mTextPaint.ascent() * this.mScale;
        final float descent = this.mTextPaint.descent() * this.mScale;
        final float h = descent - ascent;

        if (DEBUG_DRAW) {
            // Just a debug tool, which drawn a Magneta rect in the text bounds
            canvas.drawRect(this.mTextLeft, y - h + descent, this.mTextRight, y + descent, DEBUG_DRAW_PAINT);
        }//ww w.  ja v a  2s  . c o  m

        if (this.mUseTexture) {
            y = y - h + descent;
        }

        if (this.mScale != 1f) {
            canvas.scale(this.mScale, this.mScale, x, y);
        }

        if (this.mUseTexture && this.mExpandedTitleTexture != null) {
            // If we should use a texture, draw it instead of text
            canvas.drawBitmap(this.mExpandedTitleTexture, x, y, this.mTexturePaint);
        } else {
            canvas.drawText(this.mTitleToDraw, x, y, this.mTextPaint);
        }
    }

    canvas.restoreToCount(saveCount);
}

---

From source file:com.example.zhangyangjing.roundcornerimageview.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;/*from  w w  w.ja v a 2  s .  c  o  m*/
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
            generateMaskPath(mCachedWidth, mCachedHeight);
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        int sc = cacheCanvas.save();
        mDesaturatePaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
        cacheCanvas.saveLayer(mBoundsF, mDesaturatePaint,
                Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
        super.onDraw(cacheCanvas);
        cacheCanvas.drawPath(this.mMaskedPath, this.mMaskedPaint);
        cacheCanvas.restoreToCount(sc);
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

---

From source file:com.android.app.MediaPlaybackActivity.java

/**
 * //from   w  w  w .  ja va2 s. c  o  m
 *
 * @param src
 * @return
 */
private Bitmap createCircleBitmap(Bitmap src) {
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setARGB(255, 241, 239, 229);

    int width = src.getWidth();
    int height = src.getHeight();
    Bitmap target = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(target);

    canvas.drawCircle(width / 2, width / 2, width / 2, paint);

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

    return target;
}

---

From source file:com.example.SmartBoard.DrawingView.java

public void onDrawColorDropper(Canvas canvas, int dropX, int dropY) {
    Bitmap dropperImage = BitmapFactory.decodeResource(getResources(), R.drawable.drop_color_iconpng);
    canvas.drawBitmap(dropperImage, dropX, dropY, drawPaint);
}

---

From source file:android.support.designox.widget.CollapsingTextHelper.java

public void draw(Canvas canvas) {
    final int saveCount = canvas.save();

    if (mTextToDraw != null && mDrawTitle) {
        float x = mCurrentDrawX;
        float y = mCurrentDrawY;

        final boolean drawTexture = mUseTexture && mExpandedTitleTexture != null;

        final float ascent;
        final float descent;
        if (drawTexture) {
            ascent = mTextureAscent * mScale;
            descent = mTextureDescent * mScale;
        } else {//from   w w  w .j  a  v a 2s.  co  m
            ascent = mTextPaint.ascent() * mScale;
            descent = mTextPaint.descent() * mScale;
        }

        if (DEBUG_DRAW) {
            // Just a debug tool, which drawn a Magneta rect in the text bounds
            canvas.drawRect(mCurrentBounds.left, y + ascent, mCurrentBounds.right, y + descent,
                    DEBUG_DRAW_PAINT);
        }

        if (drawTexture) {
            y += ascent;
        }

        if (mScale != 1f) {
            canvas.scale(mScale, mScale, x, y);
        }

        if (drawTexture) {
            // If we should use a texture, draw it instead of text
            canvas.drawBitmap(mExpandedTitleTexture, x, y, mTexturePaint);
        } else {
            canvas.drawText(mTextToDraw, 0, mTextToDraw.length(), x, y, mTextPaint);
        }
    }

    canvas.restoreToCount(saveCount);
}

---

From source file:com.amitupadhyay.aboutexample.util.CollapsingTextHelper.java

public void draw(Canvas canvas) {
    final int saveCount = canvas.save();
    if (mTextToDraw != null && mDrawTitle) {
        float x = mCurrentDrawX;
        float y = mCurrentDrawY;
        final boolean drawTexture = mUseTexture && mExpandedTitleTexture != null;
        final float ascent;
        final float descent;
        // Update the TextPaint to the current text size
        mTextPaint.setTextSize(mCurrentTextSize);
        if (drawTexture) {
            ascent = mTextureAscent * mScale;
            descent = mTextureDescent * mScale;
        } else {/*from  ww  w .  j a v  a 2  s. co  m*/
            ascent = mTextPaint.ascent() * mScale;
            descent = mTextPaint.descent() * mScale;
        }
        if (DEBUG_DRAW) {
            // Just a debug tool, which drawn a Magneta rect in the text bounds
            canvas.drawRect(mCurrentBounds.left, y + ascent, mCurrentBounds.right, y + descent,
                    DEBUG_DRAW_PAINT);
        }
        if (drawTexture) {
            y += ascent;
        }
        if (mScale != 1f) {
            canvas.scale(mScale, mScale, x, y);
        }
        if (drawTexture) {
            // If we should use a texture, draw it instead of text
            canvas.drawBitmap(mExpandedTitleTexture, x, y, mTexturePaint);
        } else {
            canvas.drawText(mTextToDraw, 0, mTextToDraw.length(), x, y, mTextPaint);
        }
    }
    canvas.restoreToCount(saveCount);
}

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