Android TextView对URL识别
IM开发过程中,对文本消息中的超练级进行点击处理,使用系统的tv.setAutoLinkMask(Linkify.PHONE_NUMBERS | Linkify.WEB_URLS);方法:
/**
* 拦截超链接
*/
public static void interceptHyperLink(TextView tv, ChatContext chatContext, int msg_type,
long msg_id, String send_ucid) {
tv.setAutoLinkMask(Linkify.PHONE_NUMBERS | Linkify.WEB_URLS);
tv.setMovementMethod(LinkMovementMethod.getInstance());
CharSequence text = tv.getText();
if (text instanceof Spannable) {
int end = text.length();
Spannable spannable = (Spannable) tv.getText();
URLSpan[] urlSpans = spannable.getSpans(0, end, URLSpan.class);
if (urlSpans.length == 0) {
return;
}
SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(text);
for (URLSpan uri : urlSpans) {
String url = uri.getURL();
CustomURLSpan custom = new CustomURLSpan(url, chatContext, msg_type, msg_id, send_ucid);
spannableStringBuilder.setSpan(custom, spannableStringBuilder.getSpanStart(uri),
spannableStringBuilder.getSpanEnd(uri), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
tv.setText(spannableStringBuilder);
}
}
Android自带的表达式(android.util.Patterns)，在不同的ROM上表现形式是不一样的，在一些比较诡异的case上基本识别不出来,比如对于http://.com/xxx 啊啊啊这种连接,华为手机正常识别了,三星手机把后面的汉字也一起识别了,手机兼容性问题,最后只能自己写正则去匹配:
public class LinkifySpannableUtils {
public static LinkifySpannableUtils mInstance;
private Context mContext;
private TextView mTextView;
private SpannableStringBuilder mSpannableStringBuilder;
private LinkifySpannableUtils() {
}
public static LinkifySpannableUtils getInstance() {
if (mInstance == null) {
mInstance = new LinkifySpannableUtils();
}
return mInstance;
}
public void setSpan(Context context, TextView textView) {
this.mContext = context;
this.mTextView = textView;
addLinks();
}
private void addLinks() {
Linkify.addLinks(mTextView, WEB_URL, null);
Linkify.addLinks(mTextView, EMAIL_ADDRESS, null);
Linkify.addLinks(mTextView, PHONE, null);
CharSequence cSequence = mTextView.getText();
if (cSequence instanceof Spannable) {
int end = mTextView.getText().length();
Spannable sp = (Spannable) mTextView.getText();
URLSpan[] urls = sp.getSpans(0, end, URLSpan.class);
mSpannableStringBuilder = new SpannableStringBuilder(sp);
mSpannableStringBuilder.clearSpans();
for (URLSpan url : urls) {
String urlString = url.getURL();
PatternURLSpan patternURLSpan = new PatternURLSpan(urlString);
if (urlString != null && urlString.length() > 0) {
int _start = sp.getSpanStart(url);
int _end = sp.getSpanEnd(url);
try {
mSpannableStringBuilder.setSpan(patternURLSpan, _start, _end, Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
} catch (Exception e) {
e.printStackTrace();
}
}
}
mTextView.setLinkTextColor(ColorStateList.valueOf(Color.BLUE));
mTextView.setHighlightColor(Color.parseColor("#AAAAAA"));
mTextView.setText(mSpannableStringBuilder);
}
}
private class PatternURLSpan extends ClickableSpan {
private String mString;
PatternURLSpan(String str) {
this.mString = str;
}
@Override
public void onClick(View widget) {
if (EMAIL_ADDRESS.matcher(mString).find()) {
sendEmail(mString);
} else if (WEB_URL.matcher(mString).find()) {
openUrl(mString);
} else if (PHONE.matcher(mString).find()) {
dialNum(mString);
} else {
if (mString.contains(".")) {
if (mString.startsWith("http")) {
openUrl(mString);
} else {
openUrl("http://" + mString);
}
}
}
}
}
/**
* 打开系统浏览器
* @param url
*/
private void openUrl(String url) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(url));
intent.setClassName("com.android.browser",
"com.android.browser.BrowserActivity");
mContext.startActivity(intent);
}
/**
* 拨打电话
* @param num
*/
private void dialNum(final String num) {
if (num != null && num.length() > 0) {
call(num, mContext);
}
}
/**
* 调用邮箱
* @param address
*/
private void sendEmail(String address) {
String[] receive = new String[]{address};
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("plain/text");
intent.putExtra(Intent.EXTRA_EMAIL, receive);
mContext.startActivity(Intent.createChooser(intent, ""));
}
private void call(final String mobile, final Context activity) {
if (mobile == null || mobile.length() == 0) {
Toast.makeText(activity, "电话号码为空", Toast.LENGTH_SHORT).show();
return;
}
String phone = mobile.toLowerCase();
if (!phone.startsWith("tel:")) {
phone = "tel:" + mobile;
}
final String callMobile = phone;
//适配6.0系统，申请权限
if (ActivityCompat.checkSelfPermission(activity, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions((Activity) activity,
new String[]{Manifest.permission.CALL_PHONE},
MainActivity.REQUESTCODE);
}else {
callPhone(activity,callMobile);
}
}
public static void callPhone(Context activity, String callMobile) {
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse(callMobile));
if (ActivityCompat.checkSelfPermission(activity, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
return;
}
activity.startActivity(intent);
}
public final String TOP_LEVEL_DOMAIN_STR_FOR_WEB_URL =
"(?:"
+ "(?:aero|arpa|asia|a[cdefgilmnoqrstuwxz])"
+ "|(?:biz|b[abdefghijmnorstvwyz])"
+ "|(?:cat|com|coop|c[acdfghiklmnoruvxyz])"
+ "|d[ejkmoz]"
+ "|(?:edu|e[cegrstu])"
+ "|f[ijkmor]"
+ "|(?:gov|g[abdefghilmnpqrstuwy])"
+ "|h[kmnrtu]"
+ "|(?:info|int|i[delmnoqrst])"
+ "|(?:jobs|j[emop])"
+ "|k[eghimnprwyz]"
+ "|l[abcikrstuvy]"
+ "|(?:mil|mobi|museum|m[acdeghklmnopqrstuvwxyz])"
+ "|(?:name|net|n[acefgilopruz])"
+ "|(?:org|om)"
+ "|(?:pro|p[aefghklmnrstwy])"
+ "|qa"
+ "|r[eosuw]"
+ "|s[abcdeghijklmnortuvyz]"
+ "|(?:tel|travel|t[cdfghjklmnoprtvwz])"
+ "|u[agksyz]"
+ "|v[aceginu]"
+ "|w[fs]"
+ "|(?:\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae|\u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0435|\u0440\u0444|\u0441\u0440\u0431|\u05d8\u05e2\u05e1\u05d8|\u0622\u0632\u0645\u0627\u06cc\u0634\u06cc|\u0625\u062e\u062a\u0628\u0627\u0631|\u0627\u0644\u0627\u0631\u062f\u0646|\u0627\u0644\u062c\u0632\u0627\u0626\u0631|\u0627\u0644\u0633\u0639\u0648\u062f\u064a\u0629|\u0627\u0644\u0645\u063a\u0631\u0628|\u0627\u0645\u0627\u0631\u0627\u062a|\u0628\u06be\u0627\u0631\u062a|\u062a\u0648\u0646\u0633|\u0633\u0648\u0631\u064a\u0629|\u0641\u0644\u0633\u0637\u064a\u0646|\u0642\u0637\u0631|\u0645\u0635\u0631|\u092a\u0930\u0940\u0915\u094d\u0937\u093e|\u092d\u093e\u0930\u0924|\u09ad\u09be\u09b0\u09a4|\u0a2d\u0a3e\u0a30\u0a24|\u0aad\u0abe\u0ab0\u0aa4|\u0b87\u0ba8\u0bcd\u0ba4\u0bbf\u0baf\u0bbe|\u0b87\u0bb2\u0b99\u0bcd\u0b95\u0bc8|\u0b9a\u0bbf\u0b99\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0bc2\u0bb0\u0bcd|\u0baa\u0bb0\u0bbf\u0b9f\u0bcd\u0b9a\u0bc8|\u0c2d\u0c3e\u0c30\u0c24\u0c4d|\u0dbd\u0d82\u0d9a\u0dcf|\u0e44\u0e17\u0e22|\u30c6\u30b9\u30c8|\u4e2d\u56fd|\u4e2d\u570b|\u53f0\u6e7e|\u53f0\u7063|\u65b0\u52a0\u5761|\u6d4b\u8bd5|\u6e2c\u8a66|\u9999\u6e2f|\ud14c\uc2a4\ud2b8|\ud55c\uad6d|xn\\-\\-0zwm56d|xn\\-\\-11b5bs3a9aj6g|xn\\-\\-3e0b707e|xn\\-\\-45brj9c|xn\\-\\-80akhbyknj4f|xn\\-\\-90a3ac|xn\\-\\-9t4b11yi5a|xn\\-\\-clchc0ea0b2g2a9gcd|xn\\-\\-deba0ad|xn\\-\\-fiqs8s|xn\\-\\-fiqz9s|xn\\-\\-fpcrj9c3d|xn\\-\\-fzc2c9e2c|xn\\-\\-g6w251d|xn\\-\\-gecrj9c|xn\\-\\-h2brj9c|xn\\-\\-hgbk6aj7f53bba|xn\\-\\-hlcj6aya9esc7a|xn\\-\\-j6w193g|xn\\-\\-jxalpdlp|xn\\-\\-kgbechtv|xn\\-\\-kprw13d|xn\\-\\-kpry57d|xn\\-\\-lgbbat1ad8j|xn\\-\\-mgbaam7a8h|xn\\-\\-mgbayh7gpa|xn\\-\\-mgbbh1a71e|xn\\-\\-mgbc0a9azcg|xn\\-\\-mgberp4a5d4ar|xn\\-\\-o3cw4h|xn\\-\\-ogbpf8fl|xn\\-\\-p1ai|xn\\-\\-pgbs0dh|xn\\-\\-s9brj9c|xn\\-\\-wgbh1c|xn\\-\\-wgbl6a|xn\\-\\-xkc2al3hye2a|xn\\-\\-xkc2dl3a5ee0h|xn\\-\\-yfro4i67o|xn\\-\\-ygbi2ammx|xn\\-\\-zckzah|xxx)"
+ "|y[et]" + "|z[amw]))";
public final String GOOD_IRI_CHAR = "a-zA-Z0-9\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF";
public final Pattern WEB_URL = Pattern
.compile("((?:(http|https|Http|Https|rtsp|Rtsp):\\/\\/(?:(?:[a-zA-Z0-9\\$\\-\\_\\.\\+\\!\\*\\'\\(\\)"
+ "\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2})){1,64}(?:\\:(?:[a-zA-Z0-9\\$\\-\\_"
+ "\\.\\+\\!\\*\\'\\(\\)\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2})){1,25})?\\@)?)?"
+ "((?:(?:["
+ GOOD_IRI_CHAR
+ "]["
+ GOOD_IRI_CHAR
+ "\\-]{0,64}\\.)+" // named host
+ TOP_LEVEL_DOMAIN_STR_FOR_WEB_URL
+ "|(?:(?:25[0-5]|2[0-4]" // or ip address
+ "[0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9])\\.(?:25[0-5]|2[0-4][0-9]"
+ "|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(?:25[0-5]|2[0-4][0-9]|[0-1]"
+ "[0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}" + "|[1-9][0-9]|[0-9])))"
+ "(?:\\:\\d{1,5})?)" // plus option port number
+ "(\\/(?:(?:[" + GOOD_IRI_CHAR + "\\;\\/\\?\\:\\@\\&\\=\\#\\~" // plus option query
// params
+ "\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])|(?:\\%[a-fA-F0-9]{2}))*)?" + "(?:\\b|$)");
public static final Pattern EMAIL_ADDRESS = Pattern.compile("[a-zA-Z0-9\\+\\.\\_\\%\\-\\+]{1,256}" + "\\@"
+ "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}" + "(" + "\\." + "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,25}" + ")+");
public static final Pattern EMAIL_PATTERN = Pattern.compile("[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2,4}");
public static final Pattern WEB_PATTERN =
Pattern
.compile("((http[s]{0,1}|ftp)://[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)|(www.[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)");
public static final Pattern PHONE = Pattern.compile( // sdd = space, dot, or dash
"(\\+[0-9]+[\\- \\.]*)?" // +<digits><sdd>*
+ "(\\([0-9]+\\)[\\- \\.]*)?" // (<digits>)<sdd>*
+ "([0-9][0-9\\- \\.][0-9\\- \\.]+[0-9])");
}
上述WEB_URL正则仍不能正常识别,最后采用:
// all domain names
private static final String[] ext = {
"top", "com.cn", "com", "net", "org", "edu", "gov", "int", "mil", "cn", "tel", "biz", "cc", "tv", "info",
"name", "hk", "mobi", "asia", "cd", "travel", "pro", "museum", "coop", "aero", "ad", "ae", "af",
"ag", "ai", "al", "am", "an", "ao", "aq", "ar", "as", "at", "au", "aw", "az", "ba", "bb", "bd",
"be", "bf", "bg", "bh", "bi", "bj", "bm", "bn", "bo", "br", "bs", "bt", "bv", "bw", "by", "bz",
"ca", "cc", "cf", "cg", "ch", "ci", "ck", "cl", "cm", "cn", "co", "cq", "cr", "cu", "cv", "cx",
"cy", "cz", "de", "dj", "dk", "dm", "do", "dz", "ec", "ee", "eg", "eh", "es", "et", "ev", "fi",
"fj", "fk", "fm", "fo", "fr", "ga", "gb", "gd", "ge", "gf", "gh", "gi", "gl", "gm", "gn", "gp",
"gr", "gt", "gu", "gw", "gy", "hk", "hm", "hn", "hr", "ht", "hu", "id", "ie", "il", "in", "io",
"iq", "ir", "is", "it", "jm", "jo", "jp", "ke", "kg", "kh", "ki", "km", "kn", "kp", "kr", "kw",
"ky", "kz", "la", "lb", "lc", "li", "lk", "lr", "ls", "lt", "lu", "lv", "ly", "ma", "mc", "md",
"mg", "mh", "ml", "mm", "mn", "mo", "mp", "mq", "mr", "ms", "mt", "mv", "mw", "mx", "my", "mz",
"na", "nc", "ne", "nf", "ng", "ni", "nl", "no", "np", "nr", "nt", "nu", "nz", "om", "qa", "pa",
"pe", "pf", "pg", "ph", "pk", "pl", "pm", "pn", "pr", "pt", "pw", "py", "re", "ro", "ru", "rw",
"sa", "sb", "sc", "sd", "se", "sg", "sh", "si", "sj", "sk", "sl", "sm", "sn", "so", "sr", "st",
"su", "sy", "sz", "tc", "td", "tf", "tg", "th", "tj", "tk", "tm", "tn", "to", "tp", "tr", "tt",
"tv", "tw", "tz", "ua", "ug", "uk", "us", "uy", "va", "vc", "ve", "vg", "vn", "vu", "wf", "ws",
"ye", "yu", "za", "zm", "zr", "zw"
};
static {
StringBuilder sb = new StringBuilder();
sb.append("(");
for (int i = 0; i < ext.length; i++) {
sb.append(ext[i]);
sb.append("|");
}
sb.deleteCharAt(sb.length() - 1);
sb.append(")");
// final pattern str
String pattern = "((https?|s?ftp|irc[6s]?|git|afp|telnet|smb)://)?((\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})|((www\\.|[a-zA-Z\\.\\-]+\\.)?[a-zA-Z0-9\\-]+\\." + sb.toString() + "(:[0-9]{1,5})?))((/[a-zA-Z0-9\\./,;\\?'\\+&%\\$#=~_\\-]*)|([^\\u4e00-\\u9fa5\\s0-9a-zA-Z\\./,;\\?'\\+&%\\$#=~_\\-]*))";
// Log.v(TAG, "pattern = " + pattern);
WEB_URL = Pattern.compile(pattern);
}
设置了Linkify.addLinks后导致ClickableSpan的点击无法拦截
设置了Linkify.addLinks后导致ClickableSpan的点击无法拦截,会调用隐式意图打开配置了filter的Activity
使用下面步骤:
public static void interceptHyperLink(TextView tv, ChatContext chatContext, int msg_type,
long msg_id, String send_ucid) {
tv.setMovementMethod(LinkMovementMethod.getInstance());
CharSequence text = tv.getText();
if (text instanceof Spannable) {
SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(text.toString());
Linkify.addLinks(spannableStringBuilder, CommonPatterns.CHINESE_PHONE_NUMBER, PHONE_SCHEME);
Linkify.addLinks(spannableStringBuilder, CommonPatterns.WEB_URL, HTTP_SCHEME);
Linkify.addLinks(spannableStringBuilder, CommonPatterns.AUTOLINK_WEB_URL, HTTP_SCHEME);
URLSpan[] urlSpans = spannableStringBuilder.getSpans(0, spannableStringBuilder.length(), URLSpan.class);
if (urlSpans.length == 0) {
return;
}
for (URLSpan uri : urlSpans) {
String url = uri.getURL();
CustomURLSpan custom = new CustomURLSpan(url, chatContext, msg_type, msg_id, send_ucid);
int spanStart = spannableStringBuilder.getSpanStart(uri);
int spanEnd = spannableStringBuilder.getSpanEnd(uri);
spannableStringBuilder.removeSpan(uri);
spannableStringBuilder.setSpan(custom, spanStart,
spanEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
tv.setText(spannableStringBuilder);
}
}
当需要使自定义模式和内置模式web，phone等一起被识别时，一定要先声明内置模式，然后再声明自定义模式，而且不能在xml中通过autoLink属性声明，否则自定义模式不起作用。因为在设置内置模式时，会先删除已有模式。
使用该方式拦截点击事件的话,Linkify.addLinks(spannableStringBuilder, CommonPatterns.WEB_URL, HTTP_SCHEME); http和https需要分开,如果不分开,https的链接也会被加上http变成http://http://xxx,同时HTTP_SCHEME不能设置为空,如果设置为空的话,不再判断系统的scheme头,如baidu.com不会自动增加http变成https://baidu.com.
