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如何获得Android用户的电子邮件地址?

android java

nikib3ro · 技术社区 · 15 年前

我有 android.permission.READ_OWNER_DATA

2 回复 | 直到 9 年前

Jim Blackler 15 年前

你为什么要这么做?

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;
  }
}

在AnroidManifest.xml中

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

Zia 5 年前

请在清单文件中添加此权限。

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

    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+""));
        }
    }

现在像这样在onCreate()方法中调用这个函数。

Community CDub 5 年前

制作棉花糖版本

btn\u click=(Button)findViewById(R.id.btn\u click);

btn_click.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { int permissionCheck = ContextCompat.checkSelfPermission(PermissionActivity.this, android.Manifest.permission.CAMERA); if (permissionCheck == PackageManager.PERMISSION_GRANTED) { //showing dialog to select image String possibleEmail=null; Pattern emailPattern = Patterns.EMAIL_ADDRESS; // API level 8+ Account[] accounts = AccountManager.get(PermissionActivity.this).getAccounts(); for (Account account : accounts) { if (emailPattern.matcher(account.name).matches()) { possibleEmail = account.name; Log.e("keshav","possibleEmail"+possibleEmail); } } Log.e("keshav","possibleEmail gjhh->"+possibleEmail); Log.e("permission", "granted Marshmallow O/S"); } else { ActivityCompat.requestPermissions(PermissionActivity.this, new String[]{android.Manifest.permission.READ_EXTERNAL_STORAGE, android.Manifest.permission.READ_PHONE_STATE, Manifest.permission.GET_ACCOUNTS, android.Manifest.permission.CAMERA}, 1); } } else {

//低于棉花糖

String possibleEmail=null; Pattern emailPattern = Patterns.EMAIL_ADDRESS; // API level 8+ Account[] accounts = AccountManager.get(PermissionActivity.this).getAccounts(); for (Account account : accounts) { if (emailPattern.matcher(account.name).matches()) { possibleEmail = account.name; Log.e("keshav","possibleEmail"+possibleEmail); } Log.e("keshav","possibleEmail gjhh->"+possibleEmail); } } });

-1

Pedro Machado 4 年前

我找到了解决办法

startActivityForResult(intent, ANY_CODE);

@Override
    protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == ANY_CODE&& resultCode == RESULT_OK) {
            String emailAddress = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
            // do something...
        }
    }