Unity3d 获取蓝牙状态
发表于2018-10-29
如何判断当前蓝牙状态是开启还是关闭，是未连接还是已连接呢，下面这篇文章给大家分享下使用Unity引擎开发安卓应用是获取蓝牙状态的实现，具体代码如下，一起来看看吧。
C#
// 返回值：
// -5: 未知
// -4: (iOS)复位
// -3: 没有蓝牙权限
// -2: (Android)获取蓝牙适配器错误，(iOS)不支持蓝牙
// -1: 蓝牙未开启
// 0: 蓝牙已开启，未连接
// 1: (Android)蓝牙连接中
// 2: (Android)蓝牙已连接
public static int GetBluetoothState()
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int state = -5;
#if UNITY_ANDROID && !UNITY_EDITOR
try
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AndroidJavaClass tUtils = new AndroidJavaClass("java类全名");
if (tUtils != null)
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int tempState = tUtils.CallStatic<int>("GetBluetoothState");
state = tempState;
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catch (Exception )
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state = -5;
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#elif UNITY_IPHONE && !UNITY_EDITOR
#endif
return state;
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Java
public static int GetBluetoothState()
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BluetoothAdapter ba = BluetoothAdapter.getDefaultAdapter();
if (ba == null) ｛
return -2;
｝
try ｛
if (!ba.isEnabled()) ｛
return -1;
｝
｝ catch (Exception e) ｛
return -3;
｝
try ｛
//可操控蓝牙设备，如带播放暂停功能的蓝牙耳机
int a2dp = ba.getProfileConnectionState(BluetoothProfile.A2DP);
if (a2dp == BluetoothProfile.STATE_CONNECTING || a2dp == BluetoothProfile.STATE_CONNECTED) ｛
return a2dp;
｝
//蓝牙头戴式耳机，支持语音输入输出
int headset = ba.getProfileConnectionState(BluetoothProfile.HEADSET);
if (headset == BluetoothProfile.STATE_CONNECTING || headset == BluetoothProfile.STATE_CONNECTED) ｛
return headset;
｝
//蓝牙穿戴式设备
int health = ba.getProfileConnectionState(BluetoothProfile.HEALTH);
if (health == BluetoothProfile.STATE_CONNECTING || health == BluetoothProfile.STATE_CONNECTED) ｛
return health;
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｝ catch (Exception e) ｛
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return BluetoothProfile.STATE_DISCONNECTED;
｝
来自：https://blog.csdn.net/qqo_aa/article/details/78483568