beginPaint beginPaint beginPath bezierTo CanvasAdapter CanvasAdapter clearRect clipPath clipRect closePath DASH DASH_DOT DASH_DOTDOT delete DOT drawBitmap drawEllipse drawHandle drawLine drawPath drawRect drawTextAt endPaint getCanvas getHandleBitmap isDrawing lineTo makeLinePattern mBkColor mBrush mCache mCanvas mEffects mHandleIDs moveTo mPath mPen mView quadTo restoreClip saveClip setBackgroundColor setBrush setHandleImageIDs setPen TAG

drawLine() void rhcad.touchvg.view.CanvasAdapter.drawLine ( float  x1, float  y1, float  x2, float  y2  ) 这是这个函数的调用关系图: