目录三元光栅操作优化方案三元光栅操作 根据在网上的搜索总结得到两种方案，最常见的绘制带有透明背景的图像的方案都是采用如下的源图像和掩码图像叠加来消去边缘部分：
I\'m just about to launch my first Android app, and it runs on the Android 1.1 platform, API Level 2, but is this what I should officially sign and launch the app as?Does it affect performance at all
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