The documentation says that 160 dp (density-independent) equals 1 inch. And 72 pt is also 1 inch. So I don't see why android define a dp measurement while it seems to work the same as points. Can anybody explain that? Why should I use dp if I can use pt?The documentation says that 160 dp (density-ind
阅读背景：
android尺寸的差异:pt和dp
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