<?xml version="1.0" encoding="utf-8"?>

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"

     xmlns:dist="http://schemas.android.com/apk/distribution"

     package="com.example.ble">

     <dist:module dist:instant="true" />

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

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

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

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

     <uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>

     <application

         android:allowBackup="true"

         android:icon="@mipmap/bluetooth"

         android:label="@string/app_name"

         android:roundIcon="@mipmap/ic_launcher_round"

         android:supportsRtl="true"

         android:theme="@style/AppTheme">

         <activity android:name=".MainActivity">

             <intent-filter>

                 <action android:name="android.intent.action.MAIN" />

                 <category android:name="android.intent.category.LAUNCHER" />

             </intent-filter>

         </activity>

     </application>

 </manifest>

  　　private boolean checkPermissions(){

         if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {

             String[] permissions = {

                 Manifest.permission.BLUETOOTH,

                 Manifest.permission.BLUETOOTH_ADMIN,

                 Manifest.permission.ACCESS_COARSE_LOCATION,

                 Manifest.permission.ACCESS_FINE_LOCATION,

             };

             final int BLE_PERMISSION = ;

             int permissionCheck =  ;

             for (String permission : permissions){

                 permissionCheck += checkSelfPermission(permission);

             }

             if (permissionCheck != PackageManager.PERMISSION_GRANTED) {

                 requestPermissions(permissions,BLE_PERMISSION);//requestPermissions是Activity中的api

                 return false;

             }

         }

         return true;

     }

     @RequiresApi(api = Build.VERSION_CODES.M)

     @Override

     public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

         super.onRequestPermissionsResult(requestCode, permissions, grantResults);

         final int BLE_PERMISSION = ;

         if (requestCode == BLE_PERMISSION && grantResults != null) {

             boolean ret = true;

             for (int result : grantResults){//检查所有权限

                 if (result != PackageManager.PERMISSION_GRANTED){

                     ret = false;

                     break;

                 }

             }

             if (ret) {  //所有权限申请成功。

                 setupBLE();

             } else {

                 ret = shouldShowRequestPermissionRationale(permissions[]);

                 Log.e("MainActivity", "onRequestPermissionsResult: result = " + ret );

             }

         }

     }

     private fun checkPermissions(): Boolean {

         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

             val permissions = arrayOf(

                 Manifest.permission.WRITE_EXTERNAL_STORAGE

             )

             val PERMISSION_CODE = 

             var permissionCheck = 

             if (context == null ) return false

             for (permission in permissions) {

                 var check : Int? = context?.checkSelfPermission(permission)

                 if (check != null) {

                     permissionCheck += check

                 }else{

                     return false

                 }

             }

             if (permissionCheck != PackageManager.PERMISSION_GRANTED) {

                 requestPermissions(permissions, PERMISSION_CODE)

                 return false

             }

         }

         return true

     }

     @RequiresApi(api = Build.VERSION_CODES.M)

     override fun onRequestPermissionsResult(

         requestCode: Int,

         permissions: Array<String>,

         grantResults: IntArray

     ) {

         super.onRequestPermissionsResult(requestCode, permissions, grantResults)

         val PERMISSION_CODE = 

         if (requestCode == PERMISSION_CODE && grantResults != null) {

             var ret =

             for (result in grantResults) {//检查所有权限

                 ret += result

                 if (result != PackageManager.PERMISSION_GRANTED) {

                     break

                 }

             }

             if (ret == ) {  //所有权限申请成功。

                 parseJson("test.json")

             }

         }

     }

     @OnClick(R.id.btn_analy_import)

     public void onImportClicked(View view){

         if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {

             final int permissionID = ;

             int write = getActivity().checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE);

             if (write != PackageManager.PERMISSION_GRANTED) {

                 String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE};

                 requestPermissions(permissions, permissionID);//fragment基类中的函数

             }else{

                 //业务函数

             }

         }

     }

     @Override

     public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

         super.onRequestPermissionsResult(requestCode, permissions, grantResults);

         Log.e("CompareFrgmt", "onRequestPermissionsResult: requestCode = " + requestCode );

         final int permissionID = ;

         if (requestCode == permissionID && grantResults != null) {

             if (grantResults[] == PackageManager.PERMISSION_GRANTED) {

                 //业务函数

             } else {

                 Snackbar.make(operatorPager, R.string.err_permission_denied,Snackbar.LENGTH_LONG).show();

             }

         }

     }