Java:

/**

* 获取当前用户邮箱

*/

public 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;

}

还需要申请权限AndroidManifest.xml：

Ok了~ 测试通过的哟~

再放一个邮箱的正则：

/**

* 邮箱判断正则表达式

* @param eMAIL1

* @return

*/

public static boolean MatchEmail(String eMAIL1) {

Pattern pattern = Pattern.compile("\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*");

Matcher mc = pattern.matcher(eMAIL1);

return mc.matches();

}