需要全部代码请点赞关注收藏后评论区留言私信~~~一、检查是否连接WiFi以及输出WiFi信息传统的定位方式不适用于室内的垂直定位，原因如下：（1）卫星定位要求没有障碍物遮挡，它在户外比较精准，在室内信号就变差。（2）基站定位依赖于运营商的通讯服务，如果身处基站信号尚未覆盖的偏僻空间，就无法使用基站定位。室内WiFi定位纳入了IEEE的802.11标准，名叫WLAN RTT (IEEE 80....

文章 2022-04-16 来自：开发者社区

【Android】获取手机中已安装apk文件信息(PackageInfo、ResolveInfo)(应用图片、应用名、包名等)

众所周知，通过PackageManager可以获取手机端已安装的apk文件的信息，具体代码如下 view plaincopy to clipboardprint? PackageManager packageManager = this.getPackageManager(); List<PackageInfo> packageInfoList = packageManag...

问答 2022-04-15 来自：开发者社区

如何在android软件登陆，获取用户名和手机ID，通过POST传递服务器，并获得返回信息?

用户登陆，只输入用户名，并且代码在软件启动时已获得手机硬件ID，通过获取用户名和ID，POST传入服务器，服务器地址：http://117.28.239.31:8007/Controllers/LoginByDIDHandler.ashx ID格式：123d257b-2998-33a7-9439-2aebc950efe4求如果通过POST传userName和Did,并获取返回信息。最好不要第三方....

文章 2022-02-16 来自：开发者社区

Android手机在开发调试时logcat不显示输出信息的解决办法

引用：http://www.cmd100.com/bbs/forum-redirect-tid-9631-goto-lastpost.html 网上搜了N多解决方法，但是很多将log级别的，用法的，更多的是如何在logcat中设置filter进行log的过滤与查看，但是我遇到的问题是，模拟器怎么着都OK，但真机、手机进行开发调试的时候却看不到log信息，这是很恼人的事情（毕竟模拟器跑起来太慢了）....

文章 2022-02-16 来自：开发者社区

Android开发之系统信息——获取Android手机中SD卡内存信息

SD卡作为手机的扩展存储设备，在手机中充当硬盘角色，可以让我们手机存放更多的数据以及多媒体等大体积文件。因此查看SD卡的内存就跟我们查看硬盘的剩余空间一样，是我们经常操作的一件事，那么在Android开发中，我们如何能获取SD卡的内存容量呢？首先，要获取SD卡上面的信息，必须先对SD卡有访问的权限，因此第一件事就是需要添加访问扩展设备的权限。 <uses-permission...

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