public drawLine ( float arg0, float arg1, float arg2, float arg3, android arg4 ) : void | ||
arg0 | float | |
arg1 | float | |
arg2 | float | |
arg3 | float | |
arg4 | android | |
Результат | void |
void doDraw (Canvas canvas, float[] src, float[] dst) { canvas.save (); mMatrix.setPolyToPoly (src, 0, dst, 0, src.Length >> 1); canvas.concat (mMatrix); mPaint.setColor (Color.GRAY); mPaint.setStyle (Paint.Style.STROKE); canvas.drawRect (0, 0, 64, 64, mPaint); canvas.drawLine (0, 0, 64, 64, mPaint); canvas.drawLine (0, 64, 64, 0, mPaint); mPaint.setColor (Color.RED); mPaint.setStyle (Paint.Style.FILL); // how to draw the text center on our square // centering in X is easy... use alignment (and X at midpoint) float x = 64 / 2; // centering in Y, we need to measure ascent/descent first float y = 64 / 2 - (mFontMetrics.ascent + mFontMetrics.descent) / 2; canvas.drawText (src.Length / 2 + "", x, y, mPaint); canvas.restore (); }
void drawScene (Canvas canvas) { canvas.clipRect (0, 0, 100, 100); canvas.drawColor (Color.WHITE); mPaint.setColor (Color.RED); canvas.drawLine (0, 0, 100, 100, mPaint); mPaint.setColor (Color.GREEN); canvas.drawCircle (30, 70, 30, mPaint); mPaint.setColor (Color.BLUE); canvas.drawText ("Clipping", 100, 30, mPaint); }