Android 4g-阿里云

Android RIL 动态切换 4G 模块适配

这个补丁是我加在全志A40 4.4上面的做模块动态适配的 , 毋庸置疑后面的Android 版本也是适用的 , 比如rockchip 也是没问题的只是我懒得搞了而已。调试4G模块非常简单只是说早期模块经常切换 , 换了还得换固件 , 固件其实只是更换了so库而已。因为kernel drive...

mPaaS中安卓手机在4g/5g信号下小程序直接崩溃是什么原因？ wifi可以。

mPaaS中安卓手机在4g/5g信号下小程序直接崩溃是什么原因？ wifi可以

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Android部分手机4G网第一次请求很慢（wifi正常）解决方案

抓住人生中的一分一秒，胜过虚度中的一月一年!背景最近，客户突然反馈一个问题，手机4G网网络请求特别慢，卡了快30s左右，之后网络请求就正常了，但是项目杀掉，重新打开，又卡了30s左右，问题反馈过来一脸懵逼状态，从来没有遇到过这种情况，然而手边所...

Android 3G/4G流量上网原理简析

手机一般会提供两种上网方式：Wifi或者3G/4G上网，Wifi上网其实就是利用网卡通过以太网上网；3G/4G则是通过基带，利用蜂窝网络进行上网，之前已经简单的阐述了Wifi上网跟3G上网的区别，本文主要简述Android 3G/4G上网的流程及原理。无线上网硬件模型3G/4G上网协议ppp3G/4...

Android wifi上网跟4G上网的区别

手机上网可以用Wifi，也可以用4G，这两者究竟有什么区别，Wifi模块跟4G无限通信模块用的是同一种上网媒介吗，一个4G手机是否两块网卡呢？手机的MAC地址说的是谁的呢，比如，当你通过系统API获取MAC地址的时候，获取的是哪种MAC地址呢？本文由MAC地址࿰...

安卓手机4G网络，请求网络速度很慢。iOS和网页请求都正常。

上次服务器是备案过时，服务器不能访问了。后来更改了备案信息，服务器正常访问后，安卓手机网络请求就很慢了。

android app 4G与wifi下载同一个url的文件，内容不一样是为什么？

在apk检测更新后，下载服务器最新apk，4G下的话会下载以前旧版本的apk（当然就不能覆盖安装了正常升级了），而用wifi下就没问题，会下载到最新的apk，这是为什么？同一个URL啊明明

android手机能不能在3G或4G网络下进行点对点socket通信？

我试过在wifi的情况下，两个安卓手机可以进行点对点通信，但是在3G或4G网时就不行了，想实现通信必须通过pc服务端。 3G或4G网络下，两台安卓手机能否进行socket点对点通信，如果能的话，是用什么办法呢，有什么例子

Android系统移植与调试之------->如何修改Android手机显示的4G信号强度的格子数

在修改显示的信号强度之前，先了解一下什么是dB，什么是dBm? 1.dB 　　dB是一个表征相对值的值，纯粹的比值，只表示两个量的相对大小关系，没有单位，当考虑甲的功率相比于乙功...

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