How do you get the Android\'s primary e-mail address (or a list of e-mail addresses)?
It\'s my understanding that on OS 2.0+ there\'s support for multiple e-mail add
Android locked down GET_ACCOUNTS
recently so some of the answers did not work for me. I got this working on Android 7.0 with the caveat that your users have to endure a permission dialog.
AndroidManifest.xml
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
MainActivity.java
package com.example.patrick.app2;
import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.accounts.AccountManager;
import android.accounts.Account;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.*;
public class MainActivity extends AppCompatActivity {
final static int requestcode = 4; //arbitrary constant less than 2^16
private static String getEmailId(Context context) {
AccountManager accountManager = AccountManager.get(context);
Account[] accounts = accountManager.getAccountsByType("com.google");
Account account;
if (accounts.length > 0) {
account = accounts[0];
} else {
return "length is zero";
}
return account.name;
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case requestcode:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
String emailAddr = getEmailId(getApplicationContext());
ShowMessage(emailAddr);
} else {
ShowMessage("Permission Denied");
}
}
}
public void ShowMessage(String email)
{
AlertDialog alertDialog = new AlertDialog.Builder(MainActivity.this).create();
alertDialog.setTitle("Alert");
alertDialog.setMessage(email);
alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, "OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alertDialog.show();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Context context = getApplicationContext();
if ( ContextCompat.checkSelfPermission( context, android.Manifest.permission.GET_ACCOUNTS )
!= PackageManager.PERMISSION_GRANTED )
{
ActivityCompat.requestPermissions( this, new String[]
{ android.Manifest.permission.GET_ACCOUNTS },requestcode );
}
else
{
String possibleEmail = getEmailId(getApplicationContext());
ShowMessage(possibleEmail);
}
}
}
Use this method:
public String getUserEmail() {
AccountManager manager = AccountManager.get(App.getInstance());
Account[] accounts = manager.getAccountsByType("com.google");
List<String> possibleEmails = new LinkedList<>();
for (Account account : accounts) {
possibleEmails.add(account.name);
}
if (!possibleEmails.isEmpty() && possibleEmails.get(0) != null) {
return possibleEmails.get(0);
}
return "";
}
Note that this requires the GET_ACCOUNTS
permission:
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
Then:
editTextEmailAddress.setText(getUserEmail());
public String getUsername() {
AccountManager manager = AccountManager.get(this);
Account[] accounts = manager.getAccountsByType("com.google");
List<String> possibleEmails = new LinkedList<String>();
for (Account account : accounts) {
// TODO: Check possibleEmail against an email regex or treat
// account.name as an email address only for certain account.type values.
possibleEmails.add(account.name);
}
if (!possibleEmails.isEmpty() && possibleEmails.get(0) != null) {
String email = possibleEmails.get(0);
String[] parts = email.split("@");
if (parts.length > 1)
return parts[0];
}
return null;
}
This is quite the tricky thing to do in Android and I haven't done it yet. But maybe these links may help you:
Add this single line in manifest (for permission)
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
Then paste this code in your activity
private ArrayList<String> getPrimaryMailId() {
ArrayList<String> accountsList = new ArrayList<String>();
try {
Account[] accounts = AccountManager.get(this).getAccountsByType("com.google");
for (Account account : accounts) {
accountsList.add(account.name);
Log.e("GetPrimaryMailId ", account.name);
}
} catch (Exception e) {
Log.e("GetPrimaryMailId", " Exception : " + e);
}
return accountsList;
}
This could be useful to others:
Using AccountPicker to get user's email address without any global permissions, and allowing the user to be aware and authorize or cancel the process.