android TextView中识别多个url并分别点击跳转方法详解

实现方案：

我们直接参考实例代码：

private String pattern =
   "((http|ftp|https)://)(([a-zA-Z0-9\\._-]+\\.[a-zA-Z]{2,6})|([0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}))(:[0-9]{1,4})*(/[a-zA-Z0-9\\&％_\\./-~-]*)?|(([a-zA-Z0-9\\._-]+\\.[a-zA-Z]{2,6})|([0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}))(:[0-9]{1,4})*(/[a-zA-Z0-9\\&％_\\./-~-]*)?";
Pattern r = Pattern.compile(pattern);
Matcher m;
mTv.setText(identifyUrl(richURL.msg));
public SpannableStringBuilderForAllvers identifyUrl(CharSequence text) {
 CharSequence contextText;
 CharSequence clickText;
 text = text == null ? "" : text;
 //以下用于拼接本来存在的spanText
 SpannableStringBuilderForAllvers span = new SpannableStringBuilderForAllvers(text);
 ClickableSpan[] clickableSpans = span.getSpans(0, text.length(), ClickableSpan.class);
 if (clickableSpans.length > 0) {
   int start = 0;
   int end = 0;
   for (int i = 0; i < clickableSpans.length; i++) {
     start = span.getSpanStart(clickableSpans[0]);
     end = span.getSpanEnd(clickableSpans[i]);
   }
   //可点击文本后面的内容页
   contextText = text.subSequence(end, text.length());
   //可点击文本
   clickText = text.subSequence(start, end);
 } else {
   contextText = text;
   clickText = null;
 }
 m = r.matcher(contextText);
 //匹配成功
 while (m.find()) {
   //得到网址数m.group()
   if (m.start() < m.end()) {
     span.setSpan(new LinkClickSpan(m.group(), m.group(), mUrlSpanClickListener),
         m.start(), m.end(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
   }
 }
 return span;
}
private static final String HTTPS = "https://";
private static final String HTTP = "http://";
private static final String FTP = "ftp://";
public static boolean hasNetUrlHead(String url) {
 return (!TextUtils.isEmpty(url)) && (url.startsWith(HTTP) || url.startsWith(HTTPS) || url.startsWith(FTP));
}
private UrlSpanClickListener mUrlSpanClickListener = new UrlSpanClickListener() {
 @Override
 public void onClick(View view, String url, String content) {
   if (TextUtils.isEmpty(url)) {
     return;
   }
   Matcher url_matcher = Patterns.WEB_URL.matcher(url);
   if (url_matcher.matches()) {
     String tempUrl;
     if (hasNetUrlHead(url)) {
       tempUrl = url;
     } else {
       tempUrl = HTTPS + url;
     }
     //通过webview打开相应的url
//Bundle bundle = new Bundle();
     //bundle.putString(WebCordovaBaseFragment.EXTRA_URL, tempUrl);
     //bundle.putBoolean(WebCordovaBaseFragment.ENABLE_WEB_TITLE, true);
     //WebViewActivity.presentWeb(Utilities.getApplicationContext(), WebViewActivity.class, WebCommonFragment.class, content, bundle);
   }
 }
};
public interface UrlSpanClickListener {
 void onClick(View view, String url, String content);
}
public static class LinkClickSpan extends ClickableSpan {
 private int mColor = Utilities.getApplicationContext().getResources().getColor(R.color.yc_color_007AFF_CBN);
 private String mUrl;
 private String mContent;
 UrlSpanClickListener mClickListener;
public LinkClickSpan(String url, String content, UrlSpanClickListener onClickListener) {
   super();
   mUrl = url;
   mContent = content;
   mClickListener = onClickListener;
 }
@Override
 public void updateDrawState(TextPaint ds) {
   ds.setColor(mColor);
   ds.linkColor = mColor;
   ds.setUnderlineText(true);//设置是否下划线
   ds.clearShadowLayer();
 }
@Override
 public void onClick(View widget) {
   if (mClickListener != null) {
     mClickListener.onClick(widget, mUrl, mContent);
   }
 }
}
public class SpannableStringBuilderForAllvers extends SpannableStringBuilder{
public SpannableStringBuilderForAllvers() {
   super("");
 }
 public SpannableStringBuilderForAllvers(CharSequence text) {
   super(text, 0, text.length());
 }
 public SpannableStringBuilderForAllvers(CharSequence text, int start, int end){
   super(text,start,end);
 }
@Override
 public SpannableStringBuilder append(CharSequence text) {
   if (text == null) {
     return this;
   }
   int length = length();
   return (SpannableStringBuilderForAllvers)replace(length, length, text, 0, text.length());
 }
/**该方法在原API里面只支持API21或者以上，这里适应低版本*/
 public SpannableStringBuilderForAllvers append(CharSequence text, Object what, int flags) {
   if (text == null) {
     return this;
   }
   int start = length();
   append(text);
   setSpan(what, start, length(), flags);
   return this;
 }
}
public class ClickableSpanTextView extends AppCompatTextView {
private BackgroundColorSpan backgroundColorSpan;
 private boolean hasSpan;
public ClickableSpanTextView(Context context) {
   super(context);
   init();
 }
public ClickableSpanTextView(Context context, AttributeSet attrs) {
   super(context, attrs);
   init();
 }
public ClickableSpanTextView(Context context, AttributeSet attrs, int defStyleAttr) {
   super(context, attrs, defStyleAttr);
   init();
 }
private void init() {
   setMovementMethod(LinkMovementMethod.getInstance());
   backgroundColorSpan = new BackgroundColorSpan(getContext().getResources().getColor(R.color.yc_color_4B4B4B_CDG));
 }
@Override
 public boolean onTouchEvent(MotionEvent event) {
   boolean handled = super.onTouchEvent(event);
   int action = event.getAction();
if (!(getText() instanceof Spannable)) {
     return handled;
   }
Spannable spannable = (Spannable) getText();
   if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) {
     int x = (int) event.getX();
     int y = (int) event.getY();
     x -= getTotalPaddingLeft();
     y -= getTotalPaddingTop();
     x += getScrollX();
     y += getScrollY();
     Layout layout = getLayout();
     int line = layout.getLineForVertical(y);
     int off = layout.getOffsetForHorizontal(line, x);
     if (off >= getText().length()) {
       int off1 = layout.getOffsetForHorizontal(line, x - getTextSize());
       if (off == off1) {
         return handled;
       }
     }
ClickableSpan[] links = spannable.getSpans(off, off, ClickableSpan.class);
     if (links.length > 0) {
       ClickableSpan clickableSpan = links[0];
       int start = spannable.getSpanStart(clickableSpan);
       int end = spannable.getSpanEnd(clickableSpan);
if (action == MotionEvent.ACTION_DOWN && !hasSpan) {
         spannable.setSpan(backgroundColorSpan, start, end, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
         hasSpan = true;
       } else if (hasSpan) {
         spannable.removeSpan(backgroundColorSpan);
         hasSpan = false;
       }
     }
     return links.length != 0;
   } else {
     if (hasSpan && action != MotionEvent.ACTION_MOVE) {
       spannable.removeSpan(backgroundColorSpan);
       hasSpan = false;
     }
   }
   return handled;
 }
}

以上实例代码大家可以测试下，感谢大家的学习。

来源：https://www.cnblogs.com/wangqiong/p/11412269.html