上一篇介绍了通过广播对蓝牙的打开关闭等变化的监听，这一篇将对蓝牙连接状态的变化进行封装。
首先是广播接收器BlueToothConnectReceiver 类
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class BlueToothConnectReceiver extends BroadcastReceiver {
private OnBleConnectListener onBleConnectListener;
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
switch (action) {
case BluetoothDevice.ACTION_ACL_CONNECTED:
if (onBleConnectListener != null) {
onBleConnectListener.onConnect(device);
}
Log.d("BlueToothConnect", "BroadcastReceiver蓝牙已连接：" + device.getName());
break;
case BluetoothDevice.ACTION_ACL_DISCONNECTED:
//当直接关闭蓝牙时此处不会被触发，只有当蓝牙未关闭并且断开蓝牙时才会触发
if (onBleConnectListener != null) {
onBleConnectListener.onDisConnect(device);
}
Log.d("BlueToothConnect", "BroadcastReceiver蓝牙已断开：" + device.getName());
break;
}
}
public interface OnBleConnectListener {
void onConnect(BluetoothDevice device);
void onDisConnect(BluetoothDevice device);
}
public void setOnBleConnectListener(OnBleConnectListener onBleConnectListener) {
this.onBleConnectListener = onBleConnectListener;
}
}
接着是封装注册和取消注册的BlueToothUtils类，依旧使用单例模式
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.IntentFilter;
/**
* @author wang songbo
*/
public class BlueToothUtils {
private static BlueToothUtils INSTANCE;
private BlueToothStateReceiver blueToothStateReceiver;
private BlueToothConnectReceiver blueToothConnectReceiver;
public static synchronized BlueToothUtils getInstance() {
if (INSTANCE == null) {
INSTANCE = new BlueToothUtils();
}
return INSTANCE;
}
//注册广播接收器，用于监听蓝牙状态变化
public void registerBlueToothStateReceiver(Activity activity) {
blueToothStateReceiver = new BlueToothStateReceiver();
IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
activity.registerReceiver(blueToothStateReceiver, filter);
blueToothStateReceiver.setOnBlueToothStateListener(new BlueToothStateReceiver.OnBlueToothStateListener() {
@Override
public void onStateOff() {
//do something
}
@Override
public void onStateOn() {
//do something
}
@Override
public void onStateTurningOn() {
//do something
}
@Override
public void onStateTurningOff() {
//do something
}
});
}
public void unregisterBlueToothStateReceiver(Activity activity) {
activity.unregisterReceiver(blueToothStateReceiver);
}
//注册广播接收器，用于监听蓝牙连接情况的变化
public void registerBlueToothConnectReceiver(Activity activity) {
blueToothConnectReceiver = new BlueToothConnectReceiver();
IntentFilter filter_connect = new IntentFilter(BluetoothDevice.ACTION_ACL_CONNECTED);
activity.registerReceiver(blueToothConnectReceiver, filter_connect);
IntentFilter filter_disconnect = new IntentFilter(BluetoothDevice.ACTION_ACL_DISCONNECTED);
activity.registerReceiver(blueToothConnectReceiver, filter_disconnect);
blueToothConnectReceiver.setOnBleConnectListener(new BlueToothConnectReceiver.OnBleConnectListener() {
@Override
public void onConnect(BluetoothDevice device) {
}
@Override
public void onDisConnect(BluetoothDevice device) {
}
});
}
public void unregisterBlueToothConnectReceiver(Activity activity) {
activity.unregisterReceiver(blueToothConnectReceiver);
}
}
在Activity中注册与取消
BlueToothUtils.getInstance().registerBlueToothConnectReceiver(this);//注册广播
BlueToothUtils.getInstance().unregisterBlueToothConnectReceiver(this);//取消注册广播
AndroidManifest.xml中添加权限
蓝牙打开关闭状态变化传送门：
/u010161303/article/details/88824846
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