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; }