如何判断只能是数字,英文字母和中文 及获取androidmanifest.xml中meta-data的配置

// 校验Tag Alias 只能是数字,英文字母和中文
public static boolean isValidTagAndAlias(String s) {
Pattern p = Pattern.compile("^[\\u4E00-\\u9FA50-9a-zA-Z_@!#$&*+=.|￥¥]+$");
Matcher m = p.matcher(s);
return m.matches();
}

// 取得AppKey
public static String getAppKey(Context context) {
Bundle metaData = null;
String appKey = null;
try {
ApplicationInfo ai = context.getPackageManager().getApplicationInfo(
context.getPackageName(), PackageManager.GET_META_DATA);
if (null != ai)
metaData = ai.metaData;
if (null != metaData) {
appKey = metaData.getString(KEY_APP_KEY);
if ((null == appKey) || appKey.length() != 24) {
appKey = null;
}
}
} catch (NameNotFoundException e) {

}
return appKey;
}