android bluetooth advertising

OverviewSince Android 5.0, Google has added support for Android phones as a low-power Bluetooth peripheral, the service side. Enables mobile phones to communicate with each other through low-power Bluetooth.Development stepsIn fact, this function only needs to be divided into setting up the broadcast and setting up a server two parts to completeSetting up the ser

This is an example of an Android open screen layout that can be used to load advertising pictures and countdown layouts. Program set the Layoutparams, dividing the extra space ratio of 6 5, the specific weight ratio can be defined according to the user's own needs, asynchronous loading ads pictures, related to the Android code. The specific implementation code i

How to modify the Android Bluetooth file receiving path Modify file: Packages/apps/Bluetooth/src/com/android/bluetooth/opp/export thoppreceivefileinfo. java Related code snippets: public static BluetoothOppReceiveFileInfo generateFileInfo(Context context, int id) {

[Video] basic learning-free Android development: Bluetooth chat room APP (4), androidapp Zero basic learning Android development: Bluetooth chat room APP Lecture 4 4.1 Use of the ListView Control4.2 BaseAdapter details4.3 ListView distribution and rolling events4.4 ListView event listener: OnItemClickedListener

After a few days of research, coupled with the guidance of the Great God, finally cocos connected to the multi-League advertising SDK success. To connect to a third-party SDK, learn some of the usage of Eclipse, understand some Java code, and some xml,c++ call Java layer code is implemented by JNI. There is an article worth seeing: http://blog.csdn.net/ku726999/article/details/38553889 Click to open the link1, build an empty HelloWorld project, in the

First, because there is no Bluetooth device on the simulator, we need an Android system containing a bluetooth device. Second, to operate the bluetooth device on the device, we need to declare two permissions in AndroidManifest:

scanningGetactivity (). Runonuithread (NewRunnable () {//ui The control of a thread changes state, this method needs to be called, or it may not be valid @Override Public void Run() {T.showshort (Getactivity (), getString (r.string.sign_in_success)); Appsettings.setprefstring (Getactivity (), Config.issignin, mcurrentdate); Setbuttonstate (); Dialogutils.progone ();//Mcontrol.clo

According to: https://www.douban.com/note/637446089/Http://bbs.16rd.com/blog-23795-3446.htmlThe following excerpt from the original:(Android host) when each device is searched, the (device) will provide COD (class of devices) to each other, the search party can determine the device type according to Cod.When Android searches for device, it will (get) COD update to Settings, save to Cachedbluetoothdevice.mbt

Cocos2dxglsurfaceview (this); Glsurfaceview.seteglconfigchooser (5, 6, 5, 0, +, 8); return Glsurfaceview;} public static void Showbannerstatic () {//handler.sendemptymessage (0);//}//public static void Hidebannerstatic () {// Handler.sendemptymessage (1);//}//public static void Initinterstitialstatic () {//handler.sendemptymessage (2);/} public static void Showinterstitialstatic () {handler.sendemptymessage (3);} static {system.loadlibrary ("Cocos2dcpp");}}By now, the code has been added, you c

%Images.length]); Count++; Imageview2.setbackgroundresource (Images[count%Images.length]); if(juage) handler.postdelayed (runnable,6000); LOG.I ("Handler", "handler"); } }; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); Setcontentview (R.layout.activity_main); ImageView=(ImageView) Findviewbyid (R.id.imageview); ImageView2=(ImageView) Findviewbyid (R.ID.IMAGEVIEW2); Imageview2.setvisibility (4); Handler.postdelayed (runnable,2000);

Android bluetooth various UUIDServicediscoveryserverserviceclassid_uuid = ' {00001000-0000-1000-8000-00805F9B34FB} 'Browsegroupdescriptorserviceclassid_uuid= ' {00001001-0000-1000-8000-00805F9B34FB} 'Publicbrowsegroupserviceclass_uuid= ' {00001002-0000-1000-8000-00805F9B34FB} '#蓝牙串口服务SerialPortServiceClass_UUID= ' {00001101-0000-1000-8000-00805F9B34FB} 'Lanaccessusingpppserviceclass_uuid= ' {00001102-0000-1

, change next line */#define Target_design_resolution_size design_resolution_480x320typedef struct tagresource{cocos2d::ccsize SIZE; Char directory[100];} Resource;static Resource Smallresource = {Cocos2d::ccsizemake (480, +), "iphone"};static Resource Mediumresource = {Cocos2d::ccsizemake (1024x768, 768), "ipad"};static Resource Largeresource = {Cocos2d::ccsizemake (2048, 1536), "Ipadh D "}; #if (target_design_resolution_size = = design_resolution_480x320) static Cocos2d::ccsize designresol

In Android, the listening of Bluetooth device buttons is the same as the listening of general system buttons, but it only processes different keyevents. Here we will talk about the value of the previous and next keyevents sent by bluetooth, Listen to and perform corresponding processing. Public Boolean onkeydown (INT keycode, keyevent event) {Switch (keycode)

(Context.bluetooth_service); Mbluetoothadapter = Bluetoothmanager.getadapter (); if (Mbluetoothadapter = = NULL | |!mbluetoothadapter.isenabled ()) {Intent Enablebluetooth = new Intent ( bluetoothadapter.action_request_enable); Startactivityforresult (Enablebluetooth, 1); } mbluetoothadapter.startlescan (Mlescancallback); } private Bluetoothadapter.lescancallback Mlescancallback = new Bluetoothadapter.lescancallback () {@Override pub

If Bluetooth is paired and connected manually, get the connected device:1. Check the connection status:Java code int A2DP = Bluetoothadapter.getprofileconnectionstate (BLUETOOTHPROFILE.A2DP); int headset = bluetoothadapter.getprofileconnectionstate (Bluetoothprofile.headset); int health = bluetoothadapter.getprofileconnectionstate (bluetoothprofile.health); 2, depending on whether there is a connection to obtain the connected d

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each device acts as a server so that it can have a server socket to listen for connections. When the other device initializes the connection, it becomes the client. In addition, when the device becomes "host", it will open a server socket and the other devices will simply connect.Note:if the devices has not been previously paired and then the Android framework would automatically show a pairing req Uest notification or dialog to the user during the c

.view.ViewPager.OnPageChangeListener; Import Android.view.LayoutInflater; Import Android.view.View; Import Android.view.View.OnClickListener; Import Android.view.ViewGroup; Import Android.widget.FrameLayout; Import Android.widget.ImageView; Import Android.widget.LinearLayout; Import Android.widget.RelativeLayout; Import Com.stevenhu.android.phone.bean.ADInfo; Import COM.STEVENHU.ANDROID.PHONE.UI.R; /** * Implementation can be cycled, Viewpager/@SuppressLint ("Newapi") public class Cycl

+ -]); LOG.D ("BLE", Bytestohex (Scanrecord)); LOG.D ("BLE","Name:"+ Ibeaconname +"\nmac:"+ Mac +"\nuuid:"+ UUID +"\nmajor:"+ Major +"\nminor:"+ minor +"\ntxpower:"+ Txpower +"\nrssi:"+ Rssi); LOG.D ("BLE","Distance:"+calculateaccuracy (Txpower,rssi)); } } };Static Final Char[] Hexarray ="0123456789ABCDEF". ToCharArray ();Private StaticStringBytestohex(byte[] bytes) {Char[] Hexchars =New Char[Bytes.length *2]; for(intj =0; J intv = bytes[j] 0xFF; HEXCHARS[J *2] = Hexarray[v >>>4]; HEX