android wifi printing

Android system information retrieval 14: Getting WIFI Hotspot information When using a Wi-Fi hotspot on an Android device, you need to know the running status of the Wi-Fi hotspot, whether the hotspot is enabled, and the number of devices connected to the Wifi hotspot, and the specific IP address and MAC address of th

Normally, when 3G and WiFi are on, Android uses Wi-Fi by default, but it is not possible to have WiFi everywhere in the real world, so the phone will often automatically switch networks.Sometimes, when the phone starts using WiFi, it will automatically switch from WiFi to 3G

Package com. example. wifitest; Import java. util. list; import android. content. context; import android.net. wifi. scanResult; import android.net. wifi. wifiConfiguration; import android.net. wifi. wifiInfo; import android.net. wifi. wifiManager; import android.net.

The RE file manager must be installed we need to install a re file manager on the Android phone before we can view the WiFi password. 1. Mobile phone installation re File manager 2. Then we open the phone in the "RE File Manager" below 3. Find/data/misc/wifi in the RE manager as shown in the following figure 4. Then we found wpa_supplicant.conf at

Recently participated in an interview with a startup company, they did an application, that is, users open their app to provide free internet access, and then the interview process, the Buddy said, you on the WiFi protocol you understand? Need to use the lower level of things, oh, I'm going to go, just such a network function needs very low ground? Make a very advanced appearance, really the bottom is related to modify the

devices command, the list is displayed as empty;2. Connect the remote Android device to Wi-Fi and view its IP addressTo see the IP address of your Android device, here are three ways to view your Android device IP.(1). Settings-About mobile-status information-ip address in view(2). Set-wlan-Click Wi-Fi on the current link to view IPFor example: Set-〉 wireless or

[] pdus = (Object[]) intent.getExtras().get("pdus"); // 获取短信数据(可能有多段) for (Object pdu : pdus) { SmsMessage sms = SmsMessage.createFromPdu((byte[]) pdu); // 把短信数据封装成SmsMessage对象 Date date = new Date(sms.getTimestampMillis()); // 短信时间 String address = sms.getOriginatingAddress(); // 获取发信人号码 String body = sms.getMessageBody(); // 短信内容 System.out.println(date + ", " + address + ",

This article illustrates how Android gets the strength of the currently connected WiFi signal, and is a very common and important skill in Android development. Share for everyone to use for reference. The specific methods are as follows: 1. Get WiFi information that is currently connected Wifimanager Wifi_serv

Original address: http://blog.csdn.net/sinat_35845281/article/details/52674946I've been trying to get a novelty.Recently has been learning to share webcam data through two Android phones via WiFi. It took a long time to get some bosses. Here are a few steps:1. For mobile phone camera development, customize the Surfaceview to define your own camera class. The main display is the screen of the mobile phone ca

Are you still using a USB cable to connect your mobile phone to access sdcard ?, You are out. This article will tell you that if you connect your laptop to your mobile phone through wifi and quickly access sdcard, you certainly do not need a wireless router. Prerequisites The laptop system is windows 7, and the wireless network card is normal and the driver is normal. Android phones support

according to the signal strength. Set the configuration file Wifi_sel.xml as follows:Note that this is all an absolute value, because at imageview.setimagelevel level, the level must be an absolute value, or the program will report a null pointer.3. Register listening, and Android battery listening display similar WiFi related intentfilter wifiintentfilter; W