Chemmy's Blog

chengming0916@gmail.com

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发表于 Valine：

蓝牙权限 

1、监听手机本身蓝牙状态的广播

手机蓝牙开启关闭时发送

action: BluetoothAdapter.ACTION_STATE_CHANGED

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if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) { int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
BluetoothAdapter.ERROR); switch (state) { case BluetoothAdapter.STATE_OFF:
Log.d(“aaa”, “STATE_OFF 手机蓝牙关闭”); break; case BluetoothAdapter.STATE_TURNING_OFF:
Log.d(“aaa”, “STATE_TURNING_OFF 手机蓝牙正在关闭”); break; case BluetoothAdapter.STATE_ON:
Log.d(“aaa”, “STATE_ON 手机蓝牙开启”); break; case BluetoothAdapter.STATE_TURNING_ON:
Log.d(“aaa”, “STATE_TURNING_ON 手机蓝牙正在开启”); break;
}
}

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2、监听蓝牙设备配对状态的广播

蓝牙设备配对和解除配对时发送

action: BluetoothDevice.ACTION_BOND_STATE_CHANGED

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if (action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
String name = device.getName();
Log.d(“aaa”, “device name: “ + name); int state = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, -1); switch (state) { case BluetoothDevice.BOND_NONE:
Log.d(“aaa”, “BOND_NONE 删除配对”); break; case BluetoothDevice.BOND_BONDING:
Log.d(“aaa”, “BOND_BONDING 正在配对”); break; case BluetoothDevice.BOND_BONDED:
Log.d(“aaa”, “BOND_BONDED 配对成功”); break;
}
}

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3、监听蓝牙设备连接和连接断开的广播

蓝牙设备连接上和断开连接时发送, 这两个监听的是底层的连接状态

action: BluetoothDevice.ACTION_ACL_CONNECTED   BluetoothDevice.ACTION_ACL_DISCONNECTED

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if (action.equals(BluetoothDevice.ACTION_ACL_CONNECTED)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
Log.d(“aaa”, device.getName() + “ ACTION_ACL_CONNECTED”);
} else if (action.equals(BluetoothDevice.ACTION_ACL_DISCONNECTED)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
Log.d(“aaa”, device.getName() + “ ACTION_ACL_DISCONNECTED”);
}

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BluetoothClass 可以获取蓝牙设备的类型

如果想获取当前已连接上的所有蓝牙设备，可以在这两个广播中手动维护一个连接设备的列表。

像下面这样：

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/** * 记录当前正在连接的所有蓝牙输入设备 */
public List connectedBluetoothDevices = new ArrayList(); if (intent.getAction().equals(BluetoothDevice.ACTION_ACL_CONNECTED)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); if (isInputDevice(device)) {
List connectedBluetoothDevices = ((MyApplication) getApplication()).connectedBluetoothDevices; if (!connectedBluetoothDevices.contains(device)) {
connectedBluetoothDevices.add(device);
}
}
} else if (intent.getAction().equals(BluetoothDevice.ACTION_ACL_DISCONNECTED)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); if (isInputDevice(device)) {
List connectedBluetoothDevices = ((MyApplication) getApplication()).connectedBluetoothDevices;
connectedBluetoothDevices.remove(device);
}
} /** * 判断蓝牙设备是否是输入设备,这里认为 PERIPHERAL是输入设备 */
private boolean isInputDevice(BluetoothDevice device) { int deviceMajorClass = device.getBluetoothClass().getMajorDeviceClass(); if (deviceMajorClass == BluetoothClass.Device.Major.PERIPHERAL) { return true;
} return false;
}

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