updates for the version 1.0.1

README.md

@@ -36,18 +36,24 @@ Convert your TextView in ExpandableTextView with added options ReadMore/ReadLess
   // OR using options to customize
 
   ReadMoreOption readMoreOption = new ReadMoreOption.Builder(this)
-                .textLength(300)
+                .textLength(3, ReadMoreOption.TYPE_LINE) // OR
+              //.textLength(300, ReadMoreOption.TYPE_CHARACTER)
                 .moreLabel("MORE")
                 .lessLabel("LESS")
                 .moreLabelColor(Color.RED)
                 .lessLabelColor(Color.BLUE)
                 .labelUnderLine(true)
+                .expandAnimation(true)
                 .build();
 
   readMoreOption.addReadMoreTo(textView, getString(R.string.long_desc));
 
 ```
 
+### Known Issue
+
+ - [ ] expandAnimation not works with ListView/RecyclerView.    
+
 ## License
 ```
 Copyright 2018 Deven Singh

app/src/main/AndroidManifest.xml

@@ -24,7 +24,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".MainActivity"
+            android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

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

@@ -16,6 +16,7 @@
 package com.devs.readmoreoptiondemo;
 
 import android.graphics.Color;
+import android.media.TimedText;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.support.v7.widget.DividerItemDecoration;
@@ -44,14 +45,19 @@ protected void onCreate(Bundle savedInstanceState) {
         recyclerView.setAdapter(mAdapter);
 
 
+//        TextView tv = (TextView)findViewById(R.id.tv);
+//        tv.setText(getString(R.string.dummy_text));
+//
 //        ReadMoreOption readMoreOption = new ReadMoreOption.Builder(this)
-//                // Optional parameters
-//                .textLength(300)
+//              // Optional parameters
+//                .textLength(3, ReadMoreOption.TYPE_LINE) //OR
+//              //.textLength(300, ReadMoreOption.TYPE_CHARACTER)
 //                .moreLabel("MORE")
 //                .lessLabel("LESS")
 //                .moreLabelColor(Color.RED)
 //                .lessLabelColor(Color.BLUE)
 //                .labelUnderLine(true)
+//                .expandAnimation(true)
 //                .build();
 //        readMoreOption.addReadMoreTo(tv, getString(R.string.dummy_text));
 

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

@@ -44,8 +44,7 @@ static class ViewHolder extends RecyclerView.ViewHolder {
         }
     }
 
-    // Provide a suitable constructor (depends on the kind of dataset)
-    public MyAdapter(Context context) {
+     MyAdapter(Context context) {
         this.context = context;
         readMoreOption = new ReadMoreOption.Builder(context)
                 .build();
@@ -61,11 +60,8 @@ public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
         return new ViewHolder(v);
     }
 
-    // Replace the contents of a view (invoked by the layout manager)
     @Override
     public void onBindViewHolder(ViewHolder holder, int position) {
-        // - get element from your dataset at this position
-        // - replace the contents of the view with that element
         readMoreOption.addReadMoreTo(holder.mTextView,context.getString(R.string.dummy_text));
     }
 

app/src/main/res/layout/activity_main.xml

@@ -13,12 +13,22 @@
   ~  See the License for the specific language governing permissions and
   ~  limitations under the License.
   -->
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    xmlns:tools="http://schemas.android.com/tools"
     android:orientation="vertical">
 
+
+
+   <!-- <TextView
+        android:id="@+id/tv"
+        android:layout_margin="16dp"
+        tools:text="@string/dummy_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />-->
+
+
     <android.support.v7.widget.RecyclerView
         android:id="@+id/my_recycler_view"
         android:layout_margin="8dp"

readmoreoption/build.gradle

@@ -24,7 +24,7 @@ android {
         minSdkVersion 16
         targetSdkVersion 27
         versionCode 1
-        versionName "1.0"
+        versionName "1.0.1"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 

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

@@ -15,69 +15,120 @@
 
 package com.devs.readmoreoption;
 
+import android.animation.LayoutTransition;
 import android.content.Context;
 import android.graphics.Color;
+import android.os.Build;
 import android.os.Handler;
 import android.text.SpannableString;
 import android.text.Spanned;
 import android.text.TextPaint;
 import android.text.method.LinkMovementMethod;
 import android.text.style.ClickableSpan;
+import android.util.Log;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.TextView;
 
 /**
  * Created by ${Deven} on 6/1/18.
  */
 public class ReadMoreOption {
 
+    private static final String TAG = ReadMoreOption.class.getSimpleName();
+    public static final int TYPE_LINE = 1;
+    public static final int TYPE_CHARACTER = 2;
+
     // required
     private Context context;
     // optional
     private int textLength;
+    private int textLengthType;
     private String moreLabel;
     private String lessLabel;
     private int moreLabelColor;
     private int lessLabelColor;
     private boolean labelUnderLine;
+    private boolean expandAnimation;
 
     private ReadMoreOption(Builder builder){
         this.context = builder.context;
         this.textLength = builder.textLength;
+        this.textLengthType = builder.textLengthType;
         this.moreLabel = builder.moreLabel;
         this.lessLabel = builder.lessLabel;
         this.moreLabelColor = builder.moreLabelColor;
         this.lessLabelColor = builder.lessLabelColor;
         this.labelUnderLine = builder.labelUnderLine;
+        this.expandAnimation = builder.expandAnimation;
     }
 
     public void addReadMoreTo(final TextView textView, final String text){
 
-        if(text.length() <= textLength) {
+        if(textLengthType==TYPE_CHARACTER) {
+            if (text.length() <= textLength) {
+                textView.setText(text);
+                return;
+            }
+        }
+        else {
+            // If TYPE_LINE
+            textView.setLines(textLength);
             textView.setText(text);
-            return;
         }
 
-        SpannableString ss = new SpannableString(text.substring(0, textLength) + "... "+ moreLabel);
-        ClickableSpan clickableSpan = new ClickableSpan() {
+        textView.post(new Runnable() {
             @Override
-            public void onClick(View view) {
-                addReadLess(textView, text);
-            }
-            @Override
-            public void updateDrawState(TextPaint ds) {
-                super.updateDrawState(ds);
-                ds.setUnderlineText(labelUnderLine);
-                ds.setColor(moreLabelColor);
+            public void run() {
+
+                int textLengthNew = textLength;
+
+                if(textLengthType==TYPE_LINE) {
+
+
+                    if (textView.getLayout().getLineCount() <= textLength) {
+                        textView.setText(text);
+                        return;
+                    }
+
+                    ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) textView.getLayoutParams();
+
+                    String subString = text.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);
+                ClickableSpan clickableSpan = new ClickableSpan() {
+                    @Override
+                    public void onClick(View view) {
+                        addReadLess(textView, text);
+                    }
+                    @Override
+                    public void updateDrawState(TextPaint ds) {
+                        super.updateDrawState(ds);
+                        ds.setUnderlineText(labelUnderLine);
+                        ds.setColor(moreLabelColor);
+                    }
+                };
+                ss.setSpan(clickableSpan, ss.length() - moreLabel.length(), ss.length() , Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN && expandAnimation) {
+                    LayoutTransition layoutTransition = new LayoutTransition();
+                    layoutTransition.enableTransitionType(LayoutTransition.CHANGING);
+                    ((ViewGroup)textView.getParent()).setLayoutTransition(layoutTransition);
+                }
+
+                textView.setText(ss);
+                textView.setMovementMethod(LinkMovementMethod.getInstance());
             }
-        };
-        ss.setSpan(clickableSpan, ss.length() - moreLabel.length(), ss.length() , Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
-        textView.setText(ss)
-        ;
-        textView.setMovementMethod(LinkMovementMethod.getInstance());
+        });
+
+
     }
 
     private void addReadLess(final TextView textView, final String text ) {
+        textView.setMaxLines(Integer.MAX_VALUE);
         SpannableString ss = new SpannableString(text + " "+ lessLabel);
         ClickableSpan clickableSpan = new ClickableSpan() {
             @Override
@@ -97,8 +148,7 @@ public void updateDrawState(TextPaint ds) {
             }
         };
         ss.setSpan(clickableSpan, ss.length() - lessLabel.length(), ss.length() , Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
-        textView.setText(ss)
-        ;
+        textView.setText(ss);
         textView.setMovementMethod(LinkMovementMethod.getInstance());
     }
 
@@ -107,18 +157,28 @@ public static class Builder {
         private Context context;
         // optional
         private int textLength = 100;
+        private int textLengthType = ReadMoreOption.TYPE_CHARACTER;
         private String moreLabel = "read more";
         private String lessLabel = "read less";
         private int moreLabelColor = Color.parseColor("#ff00ff");
         private int lessLabelColor =  Color.parseColor("#ff00ff");
         private boolean labelUnderLine = false;
+        private boolean expandAnimation = false;
 
         public Builder(Context context){
             this.context = context;
         }
 
-        public Builder textLength(int length){
+        /**
+         * @param length can be no. of line OR no. of characters - default is 100 character
+         * @param textLengthType ReadMoreOption.TYPE_LINE for no. of line OR
+         *                       ReadMoreOption.TYPE_CHARACTER for no. of character
+         *                       - default is ReadMoreOption.TYPE_CHARACTER
+         * @return Builder obj
+         */
+        public Builder textLength(int length, int textLengthType){
             this.textLength = length;
+            this.textLengthType = textLengthType;
             return this;
         }
 
@@ -147,6 +207,16 @@ public Builder labelUnderLine(boolean labelUnderLine){
             return this;
         }
 
+        /**
+         * @param expandAnimation either true to enable animation on expand or false to disable animation
+         *                        - default is false
+         * @return Builder obj
+         */
+        public Builder expandAnimation(boolean expandAnimation){
+            this.expandAnimation = expandAnimation;
+            return this;
+        }
+
         public ReadMoreOption build(){
             return new ReadMoreOption(this);
         }