你如何获得Android的主要电子邮件地址(或电子邮件地址列表)?
据我所知,在OS 2.0上支持多个电子邮件地址,但在2.0以下,每个设备只能有一个电子邮件地址 .
有几种方法可以做到这一点,如下所示 .
As a friendly warning, be careful and up-front to the user when dealing with account, profile, and contact data. If you misuse a user's email address or other personal information, bad things can happen.
您可以使用 AccountManager.getAccounts 或 AccountManager.getAccountsByType 获取设备上所有帐户名称的列表 . 幸运的是,对于某些帐户类型(包括 com.google ),帐户名称是电子邮件地址 . 下面的示例代码段 .
AccountManager.getAccounts
AccountManager.getAccountsByType
com.google
Pattern emailPattern = Patterns.EMAIL_ADDRESS; // API level 8+ Account[] accounts = AccountManager.get(context).getAccounts(); for (Account account : accounts) { if (emailPattern.matcher(account.name).matches()) { String possibleEmail = account.name; ... } }
请注意,这需要 GET_ACCOUNTS 权限:
GET_ACCOUNTS
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
有关使用 AccountManager 的更多信息,请参阅SDK中的Contact Manager示例代码 .
AccountManager
从Android 4.0(Ice Cream Sandwich)开始,您可以通过访问其 Profiles 来获取用户的电子邮件地址 . 访问用户配置文件有点重量级,因为它需要两个权限(以下更多内容),但电子邮件地址是相当敏感的数据,因此这是录取的价格 .
下面是一个完整的示例,它使用 CursorLoader 来检索包含电子邮件地址的配置文件数据行 .
CursorLoader
public class ExampleActivity extends Activity implements LoaderManager.LoaderCallbacks<Cursor> { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); getLoaderManager().initLoader(0, null, this); } @Override public Loader<Cursor> onCreateLoader(int id, Bundle arguments) { return new CursorLoader(this, // Retrieve data rows for the device user's 'profile' contact. Uri.withAppendedPath( ContactsContract.Profile.CONTENT_URI, ContactsContract.Contacts.Data.CONTENT_DIRECTORY), ProfileQuery.PROJECTION, // Select only email addresses. ContactsContract.Contacts.Data.MIMETYPE + " = ?", new String[]{ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE}, // Show primary email addresses first. Note that there won't be // a primary email address if the user hasn't specified one. ContactsContract.Contacts.Data.IS_PRIMARY + " DESC"); } @Override public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) { List<String> emails = new ArrayList<String>(); cursor.moveToFirst(); while (!cursor.isAfterLast()) { emails.add(cursor.getString(ProfileQuery.ADDRESS)); // Potentially filter on ProfileQuery.IS_PRIMARY cursor.moveToNext(); } ... } @Override public void onLoaderReset(Loader<Cursor> cursorLoader) { } private interface ProfileQuery { String[] PROJECTION = { ContactsContract.CommonDataKinds.Email.ADDRESS, ContactsContract.CommonDataKinds.Email.IS_PRIMARY, }; int ADDRESS = 0; int IS_PRIMARY = 1; } }
这需要 READ_PROFILE 和 READ_CONTACTS 权限:
READ_PROFILE
READ_CONTACTS
<uses-permission android:name="android.permission.READ_PROFILE" /> <uses-permission android:name="android.permission.READ_CONTACTS" />
这可能对其他人有用:
Using AccountPicker to get user's email address没有任何全局权限,并允许用户知道并授权或取消该过程 .
我会使用在ICS中引入的Android的AccountPicker .
Intent googlePicker = AccountPicker.newChooseAccountIntent(null, null, new String[]{GoogleAuthUtil.GOOGLE_ACCOUNT_TYPE}, true, null, null, null, null); startActivityForResult(googlePicker, REQUEST_CODE);
然后等待结果:
protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) { if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) { String accountName = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME); } }
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; }
这在Android中是非常棘手的事情,我还没有完成它 . 但也许这些链接可能会帮助您:
Android Issue 1073:Google Auth Tokens should be accessible to 3rd party applications through an API
SDK API AccountManager in Andriod 2.x+
可悲的是,接受的答案是行不通的 .
我迟到了,但这是内部Android电子邮件应用程序的解决方案,除非提供商更改了内容uri:
Uri EMAIL_ACCOUNTS_DATABASE_CONTENT_URI = Uri.parse("content://com.android.email.provider/account"); public ArrayList<String> GET_EMAIL_ADDRESSES () { ArrayList<String> names = new ArrayList<String>(); ContentResolver cr = m_context.getContentResolver(); Cursor cursor = cr.query(EMAIL_ACCOUNTS_DATABASE_CONTENT_URI ,null, null, null, null); if (cursor == null) { Log.e("TEST", "Cannot access email accounts database"); return null; } if (cursor.getCount() <= 0) { Log.e("TEST", "No accounts"); return null; } while (cursor.moveToNext()) { names.add(cursor.getString(cursor.getColumnIndex("emailAddress"))); Log.i("TEST", cursor.getString(cursor.getColumnIndex("emailAddress"))); } return names; }
有一个Android api允许用户选择他们的电子邮件地址而无需许可 . 看看:https://developers.google.com/identity/smartlock-passwords/android/retrieve-hints
HintRequest hintRequest = new HintRequest.Builder() .setHintPickerConfig(new CredentialPickerConfig.Builder() .setShowCancelButton(true) .build()) .setEmailAddressIdentifierSupported(true) .setAccountTypes(IdentityProviders.GOOGLE) .build(); PendingIntent intent = mCredentialsClient.getHintPickerIntent(hintRequest); try { startIntentSenderForResult(intent.getIntentSender(), RC_HINT, null, 0, 0, 0); } catch (IntentSender.SendIntentException e) { Log.e(TAG, "Could not start hint picker Intent", e); }
这将显示一个用户可以选择电子邮件地址的选择器 . 结果将在 onActivityResult() 中传递
onActivityResult()
使用此方法:
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 ""; }
然后:
editTextEmailAddress.setText(getUserEmail());
Android最近锁定 GET_ACCOUNTS 所以一些答案对我不起作用 . 我在Android 7.0上工作,但需要注意的是用户必须忍受权限对话框 .
AndroidManifest.xml中
<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); } } }
Working In MarshMallow Operating System
btn_click=(Button) findViewById(R.id.btn_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 { // Lower then Marshmallow 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); } } });
10 回答
有几种方法可以做到这一点,如下所示 .
As a friendly warning, be careful and up-front to the user when dealing with account, profile, and contact data. If you misuse a user's email address or other personal information, bad things can happen.
方法A:使用AccountManager(API级别5)
您可以使用
AccountManager.getAccounts
或AccountManager.getAccountsByType
获取设备上所有帐户名称的列表 . 幸运的是,对于某些帐户类型(包括com.google
),帐户名称是电子邮件地址 . 下面的示例代码段 .请注意,这需要
GET_ACCOUNTS
权限:有关使用
AccountManager
的更多信息,请参阅SDK中的Contact Manager示例代码 .方法B:使用ContactsContract.Profile(API级别14)
从Android 4.0(Ice Cream Sandwich)开始,您可以通过访问其 Profiles 来获取用户的电子邮件地址 . 访问用户配置文件有点重量级,因为它需要两个权限(以下更多内容),但电子邮件地址是相当敏感的数据,因此这是录取的价格 .
下面是一个完整的示例,它使用
CursorLoader
来检索包含电子邮件地址的配置文件数据行 .这需要
READ_PROFILE
和READ_CONTACTS
权限:这可能对其他人有用:
Using AccountPicker to get user's email address没有任何全局权限,并允许用户知道并授权或取消该过程 .
我会使用在ICS中引入的Android的AccountPicker .
然后等待结果:
这在Android中是非常棘手的事情,我还没有完成它 . 但也许这些链接可能会帮助您:
Android Issue 1073:Google Auth Tokens should be accessible to 3rd party applications through an API
SDK API AccountManager in Andriod 2.x+
可悲的是,接受的答案是行不通的 .
我迟到了,但这是内部Android电子邮件应用程序的解决方案,除非提供商更改了内容uri:
有一个Android api允许用户选择他们的电子邮件地址而无需许可 . 看看:https://developers.google.com/identity/smartlock-passwords/android/retrieve-hints
这将显示一个用户可以选择电子邮件地址的选择器 . 结果将在
onActivityResult()
中传递使用此方法:
请注意,这需要
GET_ACCOUNTS
权限:然后:
Android最近锁定
GET_ACCOUNTS
所以一些答案对我不起作用 . 我在Android 7.0上工作,但需要注意的是用户必须忍受权限对话框 .AndroidManifest.xml中
MainActivity.java
Working In MarshMallow Operating System