bluetooth 藍芽事件監聽

今天在做專案的時候，需要監聽乙個藍芽耳機的連線狀態。就寫了乙個小的測試方法。記錄如下

看**這要處理的是藍芽監聽事件

package
com.example.alert;
import
android.bluetooth.bluetoothadapter;
import
android.bluetooth.bluetoothheadset;
import
android.bluetooth.bluetoothprofile;
import
android.content.broadcastreceiver;
import
android.content.context;
import
android.content.intent;
import
android.util.log;
import
android.widget.toast;
public
class headsetplugreceiver extends
broadcastreceiver 
else
if(action.equals(bluetoothadapter.action_state_changed)) 
} else
if(action
.equals(bluetoothheadset.action_connection_state_changed)) }}
}

藍芽的監聽，需要加入許可權，如下

<
uses-permission 
android:name
="android.permission.bluetooth"
/>
<
uses-permission 
android:name
="android.permission.bluetooth_admin"
/>
<
uses-permission 
android:name
="android.permission.bluetooth_privileged"
/>

下面是我們列印的結果

1.沒有藍芽耳機連線的情況下

藍芽從斷開到連線

1
09-21
11:45:27.223: e/123(15118
): bluetoothadapter.action_state_changed 2
09-21
11:45:27.223: e/123(15118
): bluetoothadapter.state_turning_on 3
09-21
11:45:27.707: e/123(15118
): bluetoothadapter.action_state_changed 4
09-21
11:45:27.708: e/123(15118): bluetoothadapter.state_on

從連線到斷開

1
09-21
11:49:09.126: e/123(15118
): bluetoothadapter.action_state_changed 2
09-21
11:49:09.126: e/123(15118
): bluetoothadapter.state_turning_off 3
09-21
11:49:09.271: e/123(15118
): bluetoothadapter.action_state_changed 4
09-21
11:49:09.271: e/123(15118): bluetoothadapter.state_off

2.有藍芽耳機連線的情況

關閉藍芽耳機（藍芽保持開啟）

09-21

22:12:15.439: e/123(17042

): bluetoothheadset.action_connection_state_changed 2

09-21

22:12:15.449: e/123(17042

): bluetoothprofile.state_disconnected 3

09-21

22:12:16.457: e/123(17042): bluetoothadapter.action_connection_state_changed

連線藍芽耳機

1
09-21
22:14:22.356: e/123(17042
): bluetoothheadset.action_connection_state_changed 2
09-21
22:14:22.356: e/123(17042
): bluetoothprofile.state_connected 3
09-21
22:14:22.357: e/123(17042): bluetoothadapter.action_connection_state_changed

關閉藍芽

1
09-21
22:15:12.558: e/123(17042
): bluetoothadapter.action_state_changed 2
09-21
22:15:12.559: e/123(17042
): bluetoothadapter.state_turning_off 3
09-21
22:15:13.557: e/123(17042
): bluetoothheadset.action_connection_state_changed 4
09-21
22:15:13.557: e/123(17042
): bluetoothprofile.state_disconnected 5
09-21
22:15:13.908: e/123(17042
): bluetoothadapter.action_state_changed 6
09-21
22:15:13.908: e/123(17042): bluetoothadapter.state_off

開啟藍芽

1
09-21
22:16:06.976: e/123(17042
): bluetoothheadset.action_connection_state_changed 2
09-21
22:16:06.976: e/123(17042
): bluetoothprofile.state_connecting 3
09-21
22:16:06.978: e/123(17042
): bluetoothadapter.action_connection_state_changed 4
09-21
22:16:07.036: e/123(17042
): bluetoothadapter.action_state_changed 5
09-21
22:16:07.036: e/123(17042
): bluetoothadapter.state_on 6
09-21
22:16:10.616: e/123(17042
): bluetoothheadset.action_connection_state_changed 7
09-21
22:16:10.616: e/123(17042
): bluetoothprofile.state_connected 8
09-21
22:16:10.619: e/123(17042): bluetoothadapter.action_connection_state_changed

從上面的結果我們能夠明白藍芽監聽相關事件

的職責1.bluetoothadapter.action_state_changed：這個主要是用來監聽藍芽開啟與否的狀態，它穿過來的引數包含藍芽正在斷開、斷開、正在連線、連線的狀態，每次狀態更改，都會觸發這個廣播

2.bluetoothadapter.action_connection_state_changed：這個主要是監聽藍芽裝置連線狀態。它同樣包含四種狀態

3.bluetoothheadset.action_connection_state_changed：這個就是監聽藍芽耳機的連線狀態了。

至於他們監聽的順序，目前還不大清楚，似乎沒有乙個嚴格的先後順序。就是感覺是

如果裝置處於連線狀態，優先順序比較高

如果裝置處於斷開狀態，它的存在條件優先順序比較高

bluetooth 藍芽事件監聽

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