Android assumes that an email link to textview or edittext is underlined and can be displayed on a click-to-email connection

How to add some text of TextView to the background color:

spannable str = new Spannablestring ("#fdsfdfsdfdsfd #"); Matcher Matcher = Getemailpattern (). Matcher ((charsequence) str); while (Matcher.find ()) {int start = Matcher.start (); int End = Matcher.end (); Str.setspan (new Foregroundcolorspan (0xff1a5798), start, end,spannable.span_exclusive_exclusive) ;} Textview.settext (str);

Suppose you find the email link on the TextView and underline it:

Write an attribute class to inherit Clickablespan

public class Messagebundlespan extends Clickablespan {public enum linktype {email}private String mtext;private mainactivi Ty Mactivity;public Messagebundlespan (mainactivity activity, String text) {if (activity = = null) {throw new Nullpointerexc Eption ("activity is NULL");} mactivity = Activity;mtext = text;} @Overridepublic void Updatedrawstate (Textpaint ds) {Ds.setcolor (Mactivity.getresources (). GetColor (R.color.message_ Bundle_link));d S.setunderlinetext (true);} @Overridepublic void OnClick (View widget) {new Alertdialog.builder (mactivity). Settitle ("Title"). Setmessage (MText). Create (). Show ();}}

<span style= "White-space:pre" ></span>textview TextView = (TextView) Findviewbyid (R.id.textview); String str = "$#%$%$%[email protected]&*&*[email protected]"; Textview.settext (str);     Spannablestringbuilder StringBuilder = new Spannablestringbuilder (Textview.gettext ());        Applyregexpattern (TextView, StringBuilder, Getemailpattern (), MessageBundleSpan.LinkType.EMAIL);            Textview.settext (StringBuilder, TextView.BufferType.SPANNABLE);    Textview.setmovementmethod (Linkmovementmethod.getinstance ());

private static Pattern Getemailpattern () {if (Sharppattern = = null) Sharppattern = Pattern.compile ("[\\w[.-]][email Protected][\\w[.-]]+\\. [\\w]+]; return sharppattern;}   private void Applyregexpattern (TextView TextView, Spannablestringbuilder stringBuilder, pattern pattern, Messagebundlespan.linktype type) {        Matcher Matcher = Pattern.matcher (Textview.gettext (). toString (). toLowerCase ( ));        while (Matcher.find ()) {            String text = Textview.gettext (). toString (). substring (Matcher.start (), Matcher.end ());            Stringbuilder.setspan (New Messagebundlespan (this, text), Matcher.start (), Matcher.end (), spannable.span_inclusive_ INCLUSIVE);        }   }   

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Android assumes that an email link to textview or edittext is underlined and can be displayed on a click-to-email connection