`implementation 'cn.com.superLei:blelibrary:2.3.0'
 implementation 'com.orhanobut:logger:1.15'`

`<uses-feature
            android:name="android.hardware.bluetooth_le"
            android:required="true" />
<!--使用蓝牙所需要的权限-->
<uses-permission android:name="android.permission.BLUETOOTH" />
<!--使用扫描和设置蓝牙的权限（申明这一个权限必须申明上面一个权限）-->
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<!--在 Android 6.0 及以上，还需要打开位置权限。如果应用没有位置权限，蓝牙扫描功能不能使用（其它蓝牙操作例如连接蓝牙设备和写入数据不受影响）-->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />`

/**
  * 开启位置权限
  */
 private void checkGps() {
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
         if (ContextCompat.checkSelfPermission(getApplicationContext(),
                 Manifest.permission.ACCESS_COARSE_LOCATION)
                 != PackageManager.PERMISSION_GRANTED) {
             ActivityCompat.requestPermissions(this,
                     new String[]{Manifest.permission.ACCESS_COARSE_LOCATION,
                             Manifest.permission.ACCESS_FINE_LOCATION},
                     REQUEST_CODE_ACCESS_COARSE_LOCATION);
         }
     }
 }

 @Override
 public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
     super.onRequestPermissionsResult(requestCode, permissions, grantResults);
     if (requestCode == REQUEST_CODE_ACCESS_COARSE_LOCATION) {
         if (grantResults.length > 0
                 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
             mBle.startScan(scanCallback);
             Toast.makeText(getApplicationContext(), "位置权限已开启", Toast.LENGTH_SHORT).show();
         } else {
             Toast.makeText(getApplicationContext(), "未开启位置权限", Toast.LENGTH_SHORT).show();
         }
     } else {
         super.onRequestPermissionsResult(requestCode, permissions, grantResults);
     }
 }
 
@Override
 public void onResume() {
     super.onResume();
     checkGps();
 }`