隐藏Activity,但不销毁它

场景:从Activity A跳转到Activity B,B的尺寸不能完全覆盖A,此时想使A隐藏:
具体实现,在跳转语句的后面加以下代码:
WindowManager.LayoutParams lp = getWindow().getAttributes();
lp.alpha = 0f;
getWindow().setAttributes(lp);

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转载自cyhmna.iteye.com/blog/1634759
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