http://www.cnblogs.com/-cyb/archive/2011/07/01/Android_EmailFormat.html
protected void Check() {
if (USERNAME.equals("") || PASSWORD.equals("")) {
Toast.makeText(context, "账号或密码不能为空", Toast.LENGTH_SHORT)
.show();
} else if (!EmailFormat(USERNAME) || USERNAME.length() > 31) {
Toast.makeText(context, "账号不为邮箱或格式不正确", Toast.LENGTH_LONG)
.show();
} else if (PASSWORD.length() < 6 || PASSWORD.length() > 15) {
Toast.makeText(context, "密码长度应在6～15位！", Toast.LENGTH_LONG)
.show();
} else {
login();
}
}
private boolean EmailFormat(String eMAIL1) {//邮箱判断正则表达式
Pattern pattern = Pattern
.compile("\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*");
Matcher mc = pattern.matcher(USERNAME);
return mc.matches();
}
想要获得成功，首先要自己相信自己，再者要赢得周围朋友的信任！