android TextView中识别多个url并分别点击跳转方法详解

概述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]{ ...

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]{1,4})*(/[a-zA-Z0-9\&%_\./-~-]*)?|(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,4})*(/[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 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,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,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,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,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，感谢大家的学习和对我们的支持。

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