Android 6.0 蓝牙搜索不到设备原因,MIUI权限申请机制方法

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> 
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> 

private void requestPermission() {
 if (Build.VERSION.SDK_INT >= 23) {
  int checkAccessFinePermission = ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION);
  if (checkAccessFinePermission != PackageManager.PERMISSION_GRANTED) {
   ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
     REQUEST_PERMISSION_ACCESS_LOCATION);
   Log.d(TAG, "没有权限，请求权限");
   return;
  }
  Log.d(TAG, "已有定位权限");
 }
 //做下面该做的事
}

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
 switch (requestCode) {
  case Common.REQUEST_PERMISSION_ACCESS_LOCATION: {
   if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
    Log.d(TAG, "开启权限permission granted!");
    //做下面该做的事
   } else {
    Log.d(TAG, "没有定位权限，请先开启!");
   }
  }
 }
 super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}