java类android.graphics.Rect的实例源码

private Rect getRect(View view) {
    Rect rect = new Rect();
    rect.top = view.getTop();
    rect.left = view.getLeft();
    rect.right = view.getRight();
    rect.bottom = view.getBottom();

    ViewParent viewParent = view.getParent();
    if (viewParent != null) {
        if (viewParent instanceof ViewGroup) {
            Rect prect = getRect((ViewGroup) viewParent);
            rect.top += prect.top;
            rect.left += prect.left;
            rect.right += prect.left;
            rect.bottom += prect.top;
        }
    }
    return rect;
}

private void drawShadow(Canvas canvas, View child) {
    final Rect childRect = mTmpRect;
    child.getHitRect(childRect);

    if ((mEdgeFlag & EDGE_LEFT) != 0) {
        mShadowLeft.setBounds(childRect.left - mShadowLeft.getIntrinsicWidth(), childRect.top,
                childRect.left, childRect.bottom);
        mShadowLeft.setAlpha((int) (mScrimOpacity * FULL_ALPHA));
        mShadowLeft.draw(canvas);
    }

    if ((mEdgeFlag & EDGE_RIGHT) != 0) {
        mShadowRight.setBounds(childRect.right, childRect.top,
                childRect.right + mShadowRight.getIntrinsicWidth(), childRect.bottom);
        mShadowRight.setAlpha((int) (mScrimOpacity * FULL_ALPHA));
        mShadowRight.draw(canvas);
    }

    if ((mEdgeFlag & EDGE_BOTTOM) != 0) {
        mShadowBottom.setBounds(childRect.left, childRect.bottom, childRect.right,
                childRect.bottom + mShadowBottom.getIntrinsicHeight());
        mShadowBottom.setAlpha((int) (mScrimOpacity * FULL_ALPHA));
        mShadowBottom.draw(canvas);
    }
}

/**
 * {@inheritDoc}
 */
@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent,
                           RecyclerView.State state)
{
  int position     = parent.getChildAdapterPosition(view);
  int headerHeight = 0;

  if (position != RecyclerView.NO_POSITION && hasHeader(parent, adapter, position)) {
    View header = getHeader(parent, adapter, position).itemView;
    headerHeight = getHeaderHeightForLayout(header);
  }

  outRect.set(0, headerHeight, 0, 0);
}

private void scaleRect(Rect rect, float scale) {
    if (scale != 1.0f) {
        rect.left = (int) (rect.left * scale + 0.5f);
        rect.top = (int) (rect.top * scale + 0.5f);
        rect.right = (int) (rect.right * scale + 0.5f);
        rect.bottom = (int) (rect.bottom * scale + 0.5f);
    }
}

@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
    final RecyclerView.LayoutManager layoutManager = parent.getLayoutManager();//布局管理器
    final RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) view.getLayoutParams();
    final int viewLayoutPosition = layoutParams.getViewLayoutPosition();//布局时当前View的位置
    final int viewAdapterPosition = layoutParams.getViewAdapterPosition();

    getItemOffsets(outRect, layoutManager, viewAdapterPosition, getEdge(viewAdapterPosition, layoutManager));
}

private boolean isInIgnoredView(MotionEvent ev)
{
    Rect rect = new Rect();
    for (View v : mIgnoredViews)
    {
        v.getHitRect(rect);
        if (rect.contains((int) ev.getX(), (int) ev.getY()))
        {
            return true;
        }
    }
    return false;
}

/**
 * 保存截图到sd卡 并返回截图路径
 * @param activity
 * @return
 */
public String getScreenShut(Activity activity){
    View view = activity.getWindow().getDecorView();
    view.setDrawingCacheEnabled(true);
    view.buildDrawingCache();
    Bitmap b1 = view.getDrawingCache();
    // 获取状态栏高度
    Rect frame = new Rect();
    activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
    int statusBarHeight = frame.top;
    // 获取屏幕长和高
    int width = activity.getWindowManager().getDefaultDisplay().getWidth();
    int height = activity.getWindowManager().getDefaultDisplay()
            .getHeight();
    // 去掉标题栏
    Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height
            - statusBarHeight);
    view.destroyDrawingCache();
    //保存到sd卡
    String  sdCardRoot = Environment.getExternalStorageDirectory().getAbsolutePath();
    String fileName = "shareIMG"+new Date().getTime()+".png";
    String path = sdCardRoot+"/HuoCheXing/shareImage/"+fileName;
    if(saveBitmapToSDCard(b,path)){
        return path;
    }
    return null;
}

protected static Rect getDrawableBounds(Drawable d) {
    Rect bounds = new Rect();
    d.copyBounds(bounds);
    if (bounds.width() == 0 || bounds.height() == 0) {
        bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
    } else {
        bounds.offsetTo(0, 0);
    }
    if (d instanceof PreloadIconDrawable) {
        int inset = -((PreloadIconDrawable) d).getOutset();
        bounds.inset(inset, inset);
    }
    return bounds;
}

public void setDelegateAreaColor(@ColorInt int color, Rect rect) {
    paint = new Paint();
    paint.setStyle(Paint.Style.FILL);
    paint.setColor(color);
    this.rect = rect;
    invalidate();
}

/**
 * Aligns the shadow with {@param view}
 * @param viewParent immediate parent of {@param view}. It must be a sibling of this view.
 */
public void alignWithIconView(BubbleTextView view, ViewGroup viewParent, View clipAgainstView) {
    float leftShift = view.getLeft() + viewParent.getLeft() - getLeft();
    float topShift = view.getTop() + viewParent.getTop() - getTop();
    int iconWidth = view.getRight() - view.getLeft();
    int iconHeight = view.getBottom() - view.getTop();
    int iconHSpace = iconWidth - view.getCompoundPaddingRight() - view.getCompoundPaddingLeft();
    float drawableWidth = view.getIcon().getBounds().width();

    if (clipAgainstView != null) {
        // Set the bounds to clip against
        int[] coords = new int[] {0, 0};
        Utilities.getDescendantCoordRelativeToAncestor(clipAgainstView, (View) getParent(),
                coords, false);
        int clipLeft = (int) Math.max(0, coords[0] - leftShift - mShadowPadding);
        int clipTop = (int) Math.max(0, coords[1] - topShift - mShadowPadding) ;
        setClipBounds(new Rect(clipLeft, clipTop, clipLeft + iconWidth, clipTop + iconHeight));
    } else {
        // Reset the clip bounds
        setClipBounds(null);
    }

    setTranslationX(leftShift
            + viewParent.getTranslationX()
            + view.getCompoundPaddingLeft() * view.getScaleX()
            + (iconHSpace - drawableWidth) * view.getScaleX() / 2  /* drawable gap */
            + iconWidth * (1 - view.getScaleX()) / 2  /* gap due to scale */
            - mShadowPadding  /* extra shadow size */
            );
    setTranslationY(topShift
            + viewParent.getTranslationY()
            + view.getPaddingTop() * view.getScaleY()  /* drawable gap */
            + view.getHeight() * (1 - view.getScaleY()) / 2  /* gap due to scale */
            - mShadowPadding  /* extra shadow size */
            );
}