blocks|key|838011|text|对mac地址的访问已被故意删除：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|838012|为了给用户提供更好的数据保护，从这个版本开始，Android删除了使用with和蓝牙API对设备本地硬件标识符的编程访问。|blockquote|838013|(来自Android6.0更改)|offset|length|838014|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-hardware-id^0|0|0|3|C|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$]]|$1|E|3|F|5|6|7|S|8|@]|9|@$G|T|H|U|1|V]]|A|$]]|$1|I|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

Access to the mac address has been deliberately removed:

<blockquote>
 To provide users with greater data protection, starting in this release, Android removes programmatic access to the device’s local hardware identifier for apps using the Wi-Fi and Bluetooth APIs.
</blockquote>

(from <a href="http://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-hardware-id" rel="noreferrer">Android 6.0 Changes</a>)

blocks|key|1998222|text|您可以从文件"/sys/class/net/“%2B++"/address"访问Mac地址，其中networkInterfaceName可以是wlan0或eth1，但它的权限可能是读取保护的，因此在某些设备中可能无法工作。我还附加了代码部分，我从它得到的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1998223|public+static+String+getWifiMacAddress()+{
++++++++try+{
++++++++++++String+interfaceName+=+"wlan0";
++++++++++++List<NetworkInterface>+interfaces+=+Collections
++++++++++++++++++++.list(NetworkInterface.getNetworkInterfaces());
++++++++++++for+(NetworkInterface+intf+:+interfaces)+{
++++++++++++++++if+(!intf.getName().equalsIgnoreCase(interfaceName))+{
++++++++++++++++++++continue;
++++++++++++++++}

++++++++++++++++byte[]+mac+=+intf.getHardwareAddress();
++++++++++++++++if+(mac+==+null)+{
++++++++++++++++++++return+"";
++++++++++++++++}

++++++++++++++++StringBuilder+buf+=+new+StringBuilder();
++++++++++++++++for+(byte+aMac+:+mac)+{
++++++++++++++++++++buf.append(String.format("%2502X:",+aMac));
++++++++++++++++}
++++++++++++++++if+(buf.length()+>+0)+{
++++++++++++++++++++buf.deleteCharAt(buf.length()+-+1);
++++++++++++++++}
++++++++++++++++return+buf.toString();
++++++++++++}
++++++++}+catch+(Exception+exp)+{

++++++++++++exp.printStackTrace();
++++++++}+
++++++++return+"";
++++}|code-block|syntax|javascript|1998224|entityMap^0|6|I|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You can access Mac address from the file 
"/sys/class/net/" + networkInterfaceName+ "/address" ,where networkInterfaceName can be wlan0 or eth1.But Its permission may be read-protected,so it may not work in some devices.
I am also attaching the code part which i got from SO.

<pre><code>public static String getWifiMacAddress() {
 try {
 String interfaceName = "wlan0";
 List&lt;NetworkInterface&gt; interfaces = Collections
 .list(NetworkInterface.getNetworkInterfaces());
 for (NetworkInterface intf : interfaces) {
 if (!intf.getName().equalsIgnoreCase(interfaceName)) {
 continue;
 }

 byte[] mac = intf.getHardwareAddress();
 if (mac == null) {
 return "";
 }

 StringBuilder buf = new StringBuilder();
 for (byte aMac : mac) {
 buf.append(String.format("%02X:", aMac));
 }
 if (buf.length() &gt; 0) {
 buf.deleteCharAt(buf.length() - 1);
 }
 return buf.toString();
 }
 } catch (Exception exp) {

 exp.printStackTrace();
 } 
 return "";
 }
</code></pre>

blocks|key|1444174|text|zmarties是对的，但是您仍然可以通过反射或Settings.Secure获得mac地址：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1444175|++String+macAddress+=+android.provider.Settings.Secure.getString(context.getContentResolver(),+"bluetooth_address");|code-block|syntax|javascript|1444176|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

zmarties is right but you can still get the mac address via reflection or Settings.Secure:

<pre><code> String macAddress = android.provider.Settings.Secure.getString(context.getContentResolver(), "bluetooth_address");
</code></pre>

blocks|key|1444211|text|通过反射获取MAC地址如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1444212|private+static+String+getBtAddressViaReflection()+{
++++BluetoothAdapter+bluetoothAdapter+=+BluetoothAdapter.getDefaultAdapter();
++++Object+bluetoothManagerService+=+new+Mirror().on(bluetoothAdapter).get().field("mService");
++++if+(bluetoothManagerService+==+null)+{
++++++++Log.w(TAG,+"couldn't+find+bluetoothManagerService");
++++++++return+null;
++++}
++++Object+address+=+new+Mirror().on(bluetoothManagerService).invoke().method("getAddress").withoutArgs();
++++if+(address+!=+null+&&+address+instanceof+String)+{
++++++++Log.w(TAG,+"using+reflection+to+get+the+BT+MAC+address:+"+%2B+address);
++++++++return+(String)+address;
++++}+else+{
++++++++return+null;
++++}
}|code-block|syntax|javascript|1444213|使用反射库(net.vidageek:mirror)，但是您将了解这个概念。|1444214|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Getting the MAC address via reflection can look like this:

<pre><code>private static String getBtAddressViaReflection() {
 BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 Object bluetoothManagerService = new Mirror().on(bluetoothAdapter).get().field("mService");
 if (bluetoothManagerService == null) {
 Log.w(TAG, "couldn't find bluetoothManagerService");
 return null;
 }
 Object address = new Mirror().on(bluetoothManagerService).invoke().method("getAddress").withoutArgs();
 if (address != null &amp;&amp; address instanceof String) {
 Log.w(TAG, "using reflection to get the BT MAC address: " + address);
 return (String) address;
 } else {
 return null;
 }
}
</code></pre>

using a reflection library (net.vidageek:mirror) but you'll get the idea.

blocks|key|1444239|text|事实证明，我最终没有从Android获得MAC地址。蓝牙设备最终提供了Android设备的MAC地址，该地址被存储，然后在需要时使用。是的，这似乎有点古怪，但在我参与的项目中，蓝牙设备软件也在开发中，这是处理这种情况的最佳方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1444240|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

As it turns out, I ended up not getting the MAC address from Android. The bluetooth device ended up providing the Android device MAC address, which was stored and then used when needed. Yeah it seems a little funky but on the project I was on, the bluetooth device software was also being developed and this turned out to be the best way to deal with the situation.

blocks|key|838187|text|请使用以下代码获取蓝牙mac地址。如果有什么问题请告诉我。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|838188|private+String+getBluetoothMacAddress()+{
++++BluetoothAdapter+bluetoothAdapter+=+BluetoothAdapter.getDefaultAdapter();
++++String+bluetoothMacAddress+=+"";
++++if+(android.os.Build.VERSION.SDK_INT+>=+android.os.Build.VERSION_CODES.M){
++++++++try+{
++++++++++++Field+mServiceField+=+bluetoothAdapter.getClass().getDeclaredField("mService");
++++++++++++mServiceField.setAccessible(true);

++++++++++++Object+btManagerService+=+mServiceField.get(bluetoothAdapter);

++++++++++++if+(btManagerService+!=+null)+{
++++++++++++++++bluetoothMacAddress+=+(String)+btManagerService.getClass().getMethod("getAddress").invoke(btManagerService);
++++++++++++}
++++++++}+catch+(NoSuchFieldException+e)+{

++++++++}+catch+(NoSuchMethodException+e)+{

++++++++}+catch+(IllegalAccessException+e)+{

++++++++}+catch+(InvocationTargetException+e)+{

++++++++}
++++}+else+{
++++++++bluetoothMacAddress+=+bluetoothAdapter.getAddress();
++++}
++++return+bluetoothMacAddress;
}|code-block|syntax|javascript|838189|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Please use the below code to get the bluetooth mac address. let me know if any issues.

<pre><code>private String getBluetoothMacAddress() {
 BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 String bluetoothMacAddress = "";
 if (android.os.Build.VERSION.SDK_INT &gt;= android.os.Build.VERSION_CODES.M){
 try {
 Field mServiceField = bluetoothAdapter.getClass().getDeclaredField("mService");
 mServiceField.setAccessible(true);

 Object btManagerService = mServiceField.get(bluetoothAdapter);

 if (btManagerService != null) {
 bluetoothMacAddress = (String) btManagerService.getClass().getMethod("getAddress").invoke(btManagerService);
 }
 } catch (NoSuchFieldException e) {

 } catch (NoSuchMethodException e) {

 } catch (IllegalAccessException e) {

 } catch (InvocationTargetException e) {

 }
 } else {
 bluetoothMacAddress = bluetoothAdapter.getAddress();
 }
 return bluetoothMacAddress;
}
</code></pre>

blocks|key|838193|text|首先，必须将下列权限添加到Manifest中；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|838194|<uses-permission+android:name="android.permission.BLUETOOTH"+/>
<uses-permission+android:name="android.permission.BLUETOOTH_ADMIN"+/>
<uses-permission+android:name="android.permission.LOCAL_MAC_ADDRESS"+/>|code-block|syntax|javascript|838195|然后,|838196|public+static+final+String+SECURE_SETTINGS_BLUETOOTH_ADDRESS+=+"bluetooth_address";

String+macAddress+=+Settings.Secure.getString(getContentResolver(),+SECURE_SETTINGS_BLUETOOTH_ADDRESS);|838197|之后，应用程序必须使用OEM+/+System密钥进行签名。在Android8.1.0上进行测试和验证。|838198|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

First the following permissions have to be added to Manifest;

<pre><code>&lt;uses-permission android:name="android.permission.BLUETOOTH" /&gt;
&lt;uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /&gt;
&lt;uses-permission android:name="android.permission.LOCAL_MAC_ADDRESS" /&gt;
</code></pre>

Then,

<pre><code>public static final String SECURE_SETTINGS_BLUETOOTH_ADDRESS = "bluetooth_address";

String macAddress = Settings.Secure.getString(getContentResolver(), SECURE_SETTINGS_BLUETOOTH_ADDRESS);
</code></pre>

After that the application has to be signed with OEM / System key. Tested and verified on Android 8.1.0.

blocks|key|1998377|text|干得很好|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1998378|+private+String+getBluetoothMacAddress()+{
++++++++BluetoothAdapter+bluetoothAdapter+=+BluetoothAdapter.getDefaultAdapter();
++++++++String+bluetoothMacAddress+=+"";
++++++++try+{
++++++++++++Field+mServiceField+=+bluetoothAdapter.getClass().getDeclaredField("mService");
++++++++++++mServiceField.setAccessible(true);

++++++++++++Object+btManagerService+=+mServiceField.get(bluetoothAdapter);

++++++++++++if+(btManagerService+!=+null)+{
++++++++++++++++bluetoothMacAddress+=+(String)+btManagerService.getClass().getMethod("getAddress").invoke(btManagerService);
++++++++++++}
++++++++}+catch+(NoSuchFieldException+%7C+NoSuchMethodException+%7C+IllegalAccessException+%7C+InvocationTargetException+ignore)+{

++++++++}
++++++++return+bluetoothMacAddress;
++++}|code-block|syntax|javascript|1998379|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Worked great

<pre><code> private String getBluetoothMacAddress() {
 BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 String bluetoothMacAddress = "";
 try {
 Field mServiceField = bluetoothAdapter.getClass().getDeclaredField("mService");
 mServiceField.setAccessible(true);

 Object btManagerService = mServiceField.get(bluetoothAdapter);

 if (btManagerService != null) {
 bluetoothMacAddress = (String) btManagerService.getClass().getMethod("getAddress").invoke(btManagerService);
 }
 } catch (NoSuchFieldException | NoSuchMethodException | IllegalAccessException | InvocationTargetException ignore) {

 }
 return bluetoothMacAddress;
 }
</code></pre>

blocks|key|838262|text|由于下面的方法对于android返回null。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|838263|String+macAddress+=+android.provider.Settings.Secure.getString(context.getContentResolver(),+"bluetooth_address");|code-block|syntax|javascript|838264|我找到了获取蓝牙Mac地址的新方法，您可以使用下面的命令行进行尝试。|838265|su+strings+/data/misc/bluedroid/bt_config.conf+%7C+grep+Address|838266|注意:在我的例子中，我使用的是根设备，所以我的应用程序拥有超级用户权限。|838267|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Since below method return null for android O.
<pre><code>String macAddress = android.provider.Settings.Secure.getString(context.getContentResolver(), &quot;bluetooth_address&quot;);
</code></pre>
I found new way to get Bluetooth Mac address, you can try by using below command line.
<pre><code>su strings /data/misc/bluedroid/bt_config.conf | grep Address
</code></pre>
NOTE: In my case, i was working with root device so my app has super user permission.

Pre Marshmallow my app would obtain it's device MAC address via <code>BluetoothAdapter.getDefaultAdapter().getAddress().</code>

Now with Marshmallow Android is returning <code>02:00:00:00:00:00</code>. 

I saw some link(sorry not sure where now) that said you need to add the additional permission

<pre><code>&lt;uses-permission android:name="android.permission.LOCAL_MAC_ADDRESS"/&gt; 
</code></pre>

to be able to get it. However it isn't working for me.

Is there some additional permission needed to get the mac address?

I am not sure it is pertinent here but the manifest also includes 

<pre><code>&lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/&gt;
&lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/&gt;
</code></pre>

So is there a way to get the local bluetooth mac address?

Get Bluetooth local mac address in Marshmallow

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我的应用程序可以通过BluetoothAdapter.getDefaultAdapter().getAddress().获得它的设备MAC地址现在，随着Marshmallow的出现，安卓系统正在返回02:00:00:00:00:00。我看到了一些链接(抱歉，不知道现在在哪里)，上面说您需要添加附加权限。<uses-pe...

问获取Marshmallow中的蓝牙本地mac地址
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