获取android 手机的mac

import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.widget.TextView;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TextView tv=(TextView)super.findViewById(R.id.text);
        WifiManager wifi = (WifiManager)getSystemService(Context.WIFI_SERVICE); 
        
        WifiInfo info = wifi.getConnectionInfo(); 
 
         String    mac=  info.getMacAddress();  
         tv.setText(mac);
    }    
}

记得在AndroidManifest.xml 中配置权限

注意： 需要在真机上才有能获取mac