How can you get an Android user's email address?

Question

I have android.permission.READ_OWNER_DATA but I can't find any reliable code that would explain how can I read email address of device's owner. How can I do this?

Answer 1

Why you wanna do that?

import android.accounts.Account; import android.accounts.AccountManager; import android.content.Context;  /**  * This class uses the AccountManager to get the primary email address of the  * current user.  */ public class UserEmailFetcher {    static String getEmail(Context context) {     AccountManager accountManager = AccountManager.get(context);      Account account = getAccount(accountManager);      if (account == null) {       return null;     } else {       return account.name;     }   }    private static Account getAccount(AccountManager accountManager) {     Account[] accounts = accountManager.getAccountsByType("com.google");     Account account;     if (accounts.length > 0) {       account = accounts[0];           } else {       account = null;     }     return account;   } } 

In your AnroidManifest.xml

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

Answer 2

please add this permission in your manifest file.

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

Add this function in your MainActivity.java

    public void getAccounts() {          StringBuilder emailAccounts = new StringBuilder();            if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.GET_ACCOUNTS) != PackageManager.PERMISSION_GRANTED) {              if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.GET_ACCOUNTS)) {                  ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.GET_ACCOUNTS}, 1);              } else {                  ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.GET_ACCOUNTS}, 1);              }          }          else {              List<String> accountList = new ArrayList<String>();              Pattern gmailPattern = Patterns.EMAIL_ADDRESS;              Account[] accounts = AccountManager.get(this).getAccounts();              for (Account account : accounts) {                  if (gmailPattern.matcher(account.name).matches()) {                      emailAccounts.append(flag + ". " + "<b>" + account.name + "<br>" +                              "---------" + "---------<br>"); ;                  }              }              deviceDetails.setText(Html.fromHtml(emailAccounts+""));          }      }

now call this function in your onCreate() method like this.

getAccounts();