Kotlin：TelephonyManager.getImei() 调用需要权限，用户可能会拒绝

Question

我正在使用 Kotlin 开发 android 应用程序，我使用 api 28。我想在开始使用 TelephonyManager.deviceId 时获取 deviceId number.At，经过一些研究，我发现它已被弃用。
我找到了解决方案，将 deviceId 替换为 getImei() 以下是我的代码摘录：

 val telephonyManager = getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
        if (telephonyManager != null) {

            val androidID = Settings.Secure.getString(this.contentResolver, Settings.Secure.ANDROID_ID)
            if (androidID != null) {
                Utility().DEVICE_ID = androidID
                Utility().setDataBykeyValue(applicationContext, AppController.SHAIRD_PREF_DEVICE_ID, androidID)
            } else {
                val devId = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) telephonyManager.getImei()
                 else telephonyManager.getDeviceId()
                Utility().DEVICE_ID  = devId
                Utility().setDataBykeyValue(applicationContext, AppController.SHAIRD_PREF_DEVICE_ID, devId)
            }
            Utility().CARRIER = telephonyManager.simOperatorName

        }

我也将此权限添加到我的 AndroidManifest.xml :

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

"telephonyManager.getImei()"下划红线，出现如下信息：

Call requires permission which may be rejected by user: code should explicitly check to see if permission is available (with checkPermission) or explicitly handle a potential

我想知道问题出在哪里，我该如何解决

Answer 1

对于Java：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
   if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
     requestPermissions(new String[]{Manifest.permission.READ_PHONE_STATE}, 1);
   } else {
       // else for if they have already given permission
   }
}

您也可以查看本教程：https://www.androidhive.info/2016/11/android-working-marshmallow-m-runtime-permissions/

对于 Kotlin：

 val permission = ContextCompat.checkSelfPermission(this,
                Manifest.permission.READ_PHONE_STATE)

 if (permission != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.READ_PHONE_STATE), 1)
  }

您也可以查看本教程：https://www.techotopia.com/index.php/Kotlin_-_Making_Runtime_Permission_Requests_in_Android

Answer 2

 public static String getImei(TelephonyManager tm) {
        String imei;
        try{
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                imei = tm.getDeviceId(0);
            }else{
                imei = tm.getDeviceId();
            }
        }catch(SecurityException e){
            imei = "";
        }
        return imei;
    }

Kotlin：TelephonyManager.getImei() 调用需要权限，用户可能会拒绝

Kotlin : TelephonyManager.getImei() Call requires permission which may be rejected by user

android

kotlin

telephonymanager