Merge pull request #7 from zsolt-szecsi/rich-text-support

Add rich text support to handle html tags contained by the text parameter

Author: devendroid

app/src/main/java/com/devs/readmoreoptiondemo/MyAdapter.java

@@ -16,8 +16,8 @@
 package com.devs.readmoreoptiondemo;
 
 import android.content.Context;
-import android.graphics.Color;
 import android.support.v7.widget.RecyclerView;
+import android.text.Html;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -62,8 +62,11 @@ public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
 
     @Override
     public void onBindViewHolder(ViewHolder holder, int position) {
-
-        readMoreOption.addReadMoreTo(holder.mTextView,context.getString(R.string.dummy_text));
+        if (position % 2 == 0) {
+            readMoreOption.addReadMoreTo(holder.mTextView, Html.fromHtml(context.getString(R.string.dummy_text)));
+        } else {
+            readMoreOption.addReadMoreTo(holder.mTextView, Html.fromHtml(context.getString(R.string.dummy_text)).toString());
+        }
     }
 
     // Return the size of your dataset (invoked by the layout manager)

app/src/main/res/values/strings.xml

@@ -15,5 +15,5 @@
 
 <resources>
     <string name="app_name">ReadMoreOption</string>
-    <string name="dummy_text">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry\'s standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</string>
+    <string name="dummy_text"> <![CDATA[ <b>Lorem</b> <i>Ipsum</i> is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry\'s standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.]]></string>
 </resources>

readmoreoption/src/main/java/com/devs/readmoreoption/ReadMoreOption.java

@@ -20,7 +20,9 @@
 import android.graphics.Color;
 import android.os.Build;
 import android.os.Handler;
+import android.text.Spannable;
 import android.text.SpannableString;
+import android.text.SpannableStringBuilder;
 import android.text.Spanned;
 import android.text.TextPaint;
 import android.text.method.LinkMovementMethod;
@@ -63,8 +65,7 @@ private ReadMoreOption(Builder builder){
         this.expandAnimation = builder.expandAnimation;
     }
 
-    public void addReadMoreTo(final TextView textView, final String text){
-
+    public void addReadMoreTo(final TextView textView, final CharSequence text){
         if(textLengthType==TYPE_CHARACTER) {
             if (text.length() <= textLength) {
                 textView.setText(text);
@@ -93,12 +94,16 @@ public void run() {
 
                     ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) textView.getLayoutParams();
 
-                    String subString = text.substring(textView.getLayout().getLineStart(0),
+                    String subString = text.toString().substring(textView.getLayout().getLineStart(0),
                             textView.getLayout().getLineEnd(textLength - 1));
                     textLengthNew = subString.length() - (moreLabel.length()+4+(lp.rightMargin/6));
                 }
 
-                SpannableString ss = new SpannableString(text.substring(0, textLengthNew) + "... "+ moreLabel);
+                SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(text.subSequence(0, textLengthNew))
+                        .append("...")
+                        .append(moreLabel);
+
+                SpannableString ss = SpannableString.valueOf(spannableStringBuilder);
                 ClickableSpan clickableSpan = new ClickableSpan() {
                     @Override
                     public void onClick(View view) {
@@ -123,13 +128,16 @@ public void updateDrawState(TextPaint ds) {
                 textView.setMovementMethod(LinkMovementMethod.getInstance());
             }
         });
-
-
     }
 
-    private void addReadLess(final TextView textView, final String text ) {
+    private void addReadLess(final TextView textView, final CharSequence text) {
         textView.setMaxLines(Integer.MAX_VALUE);
-        SpannableString ss = new SpannableString(text + " "+ lessLabel);
+
+        SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(text)
+                .append(lessLabel);
+
+        SpannableString ss = SpannableString.valueOf(spannableStringBuilder);
+
         ClickableSpan clickableSpan = new ClickableSpan() {
             @Override
             public void onClick(View view) {