1》在AndroidManifest.xml文件中添加相關權限

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"package="com.myapp.bluetoothdemo"android:versionCode="1"android:versionName="1.0" ><uses-sdkandroid:minSdkVersion="8"android:targetSdkVersion="19" /><!-- 1.添加藍牙使用權限 --><uses-permission android:name="android.permission.BLUETOOTH" /><applicationandroid:allowBackup="true"android:icon="@drawable/ic_launcher"android:label="@string/app_name"android:theme="@style/AppTheme" ><activityandroid:name=".MainActivity"android:label="@string/app_name" ><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity></application></manifest>2》獲取信息，具體詳見代碼注示2,3,4,5

package com.myapp.bluetoothdemo;import java.util.Iterator; import java.util.List; import java.util.Set;import android.support.v7.app.ActionBarActivity; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.content.Intent; import android.os.Bundle; import android.os.RemoteCallbackList; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button;public class MainActivity extends ActionBarActivity {// 聲明控件private Button scanBlueDev_btn;// 本地藍牙設備private BluetoothAdapter localBlueTooth;// 與本地藍牙設備配對的遠程藍牙設備private Set<BluetoothDevice> remoteBlueToothes;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);init();}private void init() {scanBlueDev_btn = (Button) findViewById(R.id.scanBlueDev_btn);scanBlueDev_btn.setOnClickListener(blueDevClickListener);}OnClickListener blueDevClickListener = new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubswitch (v.getId()) {case R.id.scanBlueDev_btn:scanBlueDevices();break;default:break;}}};private void scanBlueDevices() {// 2.得到本地藍牙設備localBlueTooth = BluetoothAdapter.getDefaultAdapter();// 3. 判斷本地是否有藍牙設備if (localBlueTooth != null) {// 本地有藍牙設備// 4.判斷本地藍牙設備是否已經打開if (!localBlueTooth.isEnabled()) {// 本地藍牙未打開，提示打開藍牙Intent blueToothIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);startActivity(blueToothIntent);}// 5.獲取已配對的遠程藍牙設備// 注意：即使本地藍牙未打開，也可以得到已配對的遠程藍牙設備，因為這些信息已經存儲在本地了。remoteBlueToothes = localBlueTooth.getBondedDevices();if (remoteBlueToothes.size() > 0) {for (Iterator iterator = remoteBlueToothes.iterator(); iterator.hasNext();) {BluetoothDevice bluetoothDevice = (BluetoothDevice) iterator.next();Log.i("CXC", bluetoothDevice.getAddress());}}} else {// 本地沒有藍牙設備Log.i("CXC", "本地沒有藍牙設備");}}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {// Handle action bar item clicks here. The action bar will// automatically handle clicks on the Home/Up button, so long// as you specify a parent activity in AndroidManifest.xml.int id = item.getItemId();if (id == R.id.action_settings) {return true;}return super.onOptionsItemSelected(item);} }

總結

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