最近学习了蓝牙的搜索，不过在调试的时候发现模拟器上要报错，后来想了一下，模拟器上没有蓝牙的模块，根本不能运行啊。所以像蓝牙这种需要硬件支持的项目，还是需要真机调试的。
其他的不多说了吧，下面就直接上代码吧：
下面呢就是蓝牙搜索的全部代码，里面包含的有蓝牙的打开，关闭以及搜索附近的蓝牙：
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package
cn.chenwei.android.app;
import java.util.ArrayList;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import
android.content.Intent;
import
android.content.IntentFilter;
import
android.os.Bundle;
import
android.view.Menu;
import
android.view.MenuItem;
import
android.widget.Adapter;
import
android.widget.ArrayAdapter;
import
android.widget.ListView;
import
android.widget.Toast;
public
class SearchBluetoothActivity extends
Activity {
/** Called when the activity is first created. */
BluetoothAdapter bluetoothAdapter = null;
private
ListView listview;
ArrayAdapter<String> adapter = null;
@Override
public
void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// 得到listview
listview = (ListView) findViewById(R.id.list);
bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();// 获取蓝牙适配器
boolean
flag = bluetoothAdapter.isEnabled();
if
(flag) {
Toast.makeText(this, "蓝牙已经打开", Toast.LENGTH_SHORT).show();
} else
{
bluetoothAdapter.enable();// 打开蓝牙设备
Toast.makeText(this, "正在打开蓝牙", Toast.LENGTH_SHORT).show();
}
}
@Override
public
boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
menu.add("搜索附近蓝牙设备");
return
super.onCreateOptionsMenu(menu);
}
boolean
flag = true;// 线程停止的状态
String[] strs = null;
@Override
public
boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
Toast.makeText(this, "正在搜索蓝牙", Toast.LENGTH_SHORT).show();
// 动态注册
IntentFilter filter = new
IntentFilter();
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
filter.addAction(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
registerReceiver(new
MyBroadcastReceiver(), filter);
new
Thread(new
Runnable() {
public
void run() {
// TODO Auto-generated method stub
while
(true) {
bluetoothAdapter.startDiscovery();// 开始搜索
if
(!flag) {
for
(BluetoothDevice bd : list) {
System.out.println("搜索蓝牙"
+ bd.getName());
}
}
break;
}
}
}).start();
return
super.onOptionsItemSelected(item);
}
// 创建数组用于储存 搜索到的蓝牙
ArrayList<BluetoothDevice> list = null;
// 蓝牙的三个状态，打开，发现，结束
class
MyBroadcastReceiver extends
BroadcastReceiver {
@Override
public
void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
System.out.println("kaishile ");
String action = intent.getAction();
if
(BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) {// 开始
Toast.makeText(SearchBluetoothActivity.this, "开始状态",
Toast.LENGTH_LONG).show();
list = new
ArrayList<BluetoothDevice>();
} else
if (BluetoothDevice.ACTION_FOUND.equals(action)) {// 搜索
Toast.makeText(SearchBluetoothActivity.this, "发现状态",
Toast.LENGTH_LONG).show();
BluetoothDevice bluetoothDevice = (BluetoothDevice) intent
.getExtras().get(BluetoothDevice.EXTRA_DEVICE);
list.add(bluetoothDevice);
} else
if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED
.equals(action)) {//结束
Toast.makeText(SearchBluetoothActivity.this, "结束状态",
Toast.LENGTH_LONG).show();
flag = false;// 修改状态
unregisterReceiver(this);// 注销广播
}
}
}
} |
不过到这个地方，搜索蓝牙的功能还不能实现，因为缺少了调用蓝牙的权限：
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2
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<uses-permission android:name="android.permission.BLUETOOTH"
/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"
/>
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以上就是蓝牙搜索的全部代码，希望对朋友们有所帮助，各位朋友有什么问题请多多指教啊