Steps for using Bluetooth in Android

The following describes how to use Bluetooth in Android.

1. Import related packages:

Import Android. Bluetooth .*;

2. Set permissions.

<Uses-Permission Android: Name = "android. Permission. Bluetooth"/>

If you want more advanced user permission settings

<Uses-Permission Android: Name = "android. Permission. effecth_admin"/>

3. Android has a javasthadapter Singleton class, which must be used first, that is

Descrithadapter Bluetooth = descrithadapter. getdefaadapter adapter ();

Then determine whether the device supports Bluetooth.

 

 
Descrithadapter Bluetooth = descrithadapter. getdefaadapter adapter (); If (Bluetooth! = NULL ){}
 

If not null

Determine whether the user has enabled the Bluetooth function:

 

 
If (Bluetooth. isenabled () {} else {}
 

4. Next, a user is displayed. If Bluetooth is enabled, the name and status of the bluetooth device are displayed.

If the bluetooth device is not enabled, notify the user

 

 
String status; If (Bluetooth. isenabled () {string mydeviceaddress = Bluetooth. getaddress (); string mydevicename = Bluetooth. getname (); status = mydevicename + ":" + mydeviceaddress;} else {status = "Bluetooth is not enabled. ";} toast. maketext (this, status, toast. length_long ). show ();
 

Getname () is used to obtain the device name.

<Uses-Permission Android: Name = "android. Permission. effecth_admin"/>

You can set the bluetooth device name as follows:

Bluetooth. setname ("androidcoder ");

5. display the Bluetooth status:

String state = Bluetooth. getstate (); status = mydevicename + ":" + mydeviceaddress + ":" + state;

The Bluetooth status includes:

State_turning_on

State_on

State_turning_off

State_off