Android方法分析的相关内容

文章 2016-09-10 来自：开发者社区

Android(Linux)控制GPIO的方法及实时性分析

　　Linux下控制GPIO的方法有N种，详细请参考《RPi GPIO Code Samples》，文中用十多种语言演示了如何控制GPIO，非常全面详尽。因此，这里不再多做赘述，仅把调试过程中整理的脚本贴上并做简单的分析。特别说明，Linux必须有root权限！！！否则会出现/system/bin/sh: can't create /sys/class/gpio/export: Permissi....

文章 2015-09-14 来自：开发者社区

android实现弹出式对话框方法分析

利用Dialog，PopupWindow都可以实现对话框的功能。 Dialog实现比较方便，可以用系统自带的样式，也可以自定义一下，但是它显示位置比较固定，有时不能满足我们的需求。而PopupWindow可以通过showAtLocation设置显示位置，也可以通过ShowAsDropDown以下拉方式显示在某个View的相对位置上，基本能满足我们的需求。举个例子简单说明一下为要使用自定义.....

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