android - 如何使用抗锯齿有效地调整图像大小？

Question

我尝试像这样调整图像的大小：

aPaint.setAntiAlias(true); // Enabling this flag will cause all draw operations that support antialiasing to use it.
aPaint.setFilterBitmap(True); // enable bilinear sampling on scaled bitmaps. If cleared, scaled bitmaps will be drawn with nearest neighbor sampling, likely resulting in artifacts.
apaint.setDither(true); // Enabling this flag applies a dither to any blit operation where the target's colour space is more constrained than the source.
aCanvas.drawBitmap(aBitmap, aJSrcRect, aJDestRectf, apaint);

但是我没有很好的抗锯齿图像（它是抗锯齿的，但不是很好）。这是显示我的问题的图像

我该怎么做才能提高 android 下的抗锯齿质量？

Answer 1

对于抗锯齿效果，您可以尝试像这样创建一个 Paint：

Paint paint= new Paint();
paint.setFlags(Paint.ANTI_ALIAS_FLAG);
paint.setAntiAlias(true);
paint.setFilterBitmap(true); 

最后在画布上涂上油漆：

canvas.drawBitmap(mBitmap, 0.f, 0.f, paint)