Android翻页效果—电子书(3)

    if ( (this.mTimeStep this.mMaxStep)) {
     return false;
    }
    if (this.mPage == null) {
     return false;
    }
    this.mDrawnTimeStep = this.mTimeStep;
    View child = this.mPage.getChildAt(0);
    child.getDrawingRect(this.mChildRect);
//    this.mOuterOffsetX = (child.getLeft() - getLeft());
//    this.mOuterOffsetY = (child.getTop() - getTop());
    this.mOuterOffsetX = 0;
    this.mOuterOffsetY = 0;
 
    float width = this.mChildRect.right;
    float height = this.mChildRect.bottom;
    if(!mStepping){
     this.mPivotX = (this.mTimeStep / 30.0f * width);
    }
    this.mForegroundPath = new Path();
    this.mBackPagePath = new Path();
    this.mBackgroundPath = new Path();
    float slope = width / (this.mPivotX - width);
    float y = this.mPivotX * slope;
 
    this.mPageTurnCorner.x = 0.0F;
    this.mPageTurnCorner.y = height;
    this.mOppositeCorner.x = width;
    this.mOppositeCorner.y = 0.0F;
    float x0 = this.mPivotX;
    float cornerIntersect = height * width / (height + width);
    if ((this.mCorner & 0x1) != 0) {
     this.mPageTurnCorner.x = width;
     this.mOppositeCorner.x = 0.0F;
     x0 = width - x0;
    }
 
    if ((this.mCorner & 0x2) != 0) {
     this.mPageTurnCorner.y = 0.0F;
     this.mOppositeCorner.y = height;
    }
 
    this.mPageDim.x = width;
    this.mPageDim.y = height;
    float page_slope;
 
    if (this.mPivotX 2){
   LinearGradient grad = new LinearGradient(
     ex,ey,ex+(dx-ex)/4,ey+(dy-ey)/4,R.color.gray3,Color.TRANSPARENT,Shader.TileMode.CLAMP);
   Paint p=new Paint();
      p.setShader(grad);
//      p.setAlpha(120);
      canvas.drawPath(this.mBackgroundPath,p);
      //end test
     }
    canvas.restore();
 
   }
 
   private void drawBackPage(Canvas canvas) {