Get IMEI on Android without requesting permissions

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Get IMEI on Android without requesting permissions

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#1 by (0 votes)

2

I have an app where I identify each device with the number IMEI ,

The problem is that to request this number, androiod shows a window to the user indicating that if I grant permission to access the calls and the state of the phone. So many users say no

This is a problem because without this code I can not identify devices or associate a device with a user.

Is there any way to request the imei without permissions? or to request another unique device code?

The code I use is the following:

   public void getImeiFunc() {
    int permissionCheck = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE);
    if (permissionCheck != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE}, REQUEST_READ_PHONE_STATE);
    }
    else {
        TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        String imei;
        if (Build.VERSION.SDK_INT >= 26) {
            imei = telephonyManager.getImei(0);
        } else {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                imei = telephonyManager.getDeviceId(0);
            } else {
                imei = telephonyManager.getDeviceId();
            }
        }
    }
}

android

asked by Alberto Mier 29.11.2017 в 08:21

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1 answer

Create a for to consult values of a data Error when pairing bluetooth device

score 0 · Accepted Answer

You must remember that for devices with OS 6.0 or higher it is necessary to manually require some permissions that are considered "dangerous", among these permits is the permission: READ_PHONE_STATE .

One way to avoid requiring permissions is to define a targetSdkVersion less than 23 , but in In the future, your application will require updating the Libraries to its most recent versions and therefore you will have to define a larger targetSdkVersion.

It is very important to define that you can not avoid requesting these permissions, if you do it simply your application will not work correctly . One way that I recommend you is to open a dialog before requesting permission to suggest to the user to accept the following permissions in order for your application to work correctly.

This is a method to obtain the IMEI of a device in all operating system versions:

  public String obtenerImei(){

        if(Build.VERSION.SDK_INT  < Build.VERSION_CODES.M){
            //Menores a Android 6.0
            String imei= getIMEI();
            return imei;
        } else {
            // Mayores a Android 6.0
            String imei="";
            if (checkSelfPermission(Manifest.permission.READ_PHONE_STATE)
                    != PackageManager.PERMISSION_GRANTED) {
                requestPermissions(new String[]{Manifest.permission.READ_PHONE_STATE},
                        MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
                imei="";
            } else {
                imei= getIMEI();
            }

            return imei;

        }
    }

    private String getIMEI() {

        TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        String imei =tm.getDeviceId(); 
        return imei;

    }