proper match regex sometimes , sometimes not..

app/src/main/java/com/biganto/visual/roompark/presentation/screen/article/ScreenController.kt

 package com.biganto.visual.roompark.presentation.screen.article
 
-import PicassoImageGetter
-import android.os.Build
 import android.os.Bundle
 import android.text.Html
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
 import androidx.core.os.bundleOf
-import androidx.core.text.HtmlCompat
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 import butterknife.BindView
 import butterknife.OnClick
 import com.biganto.visual.roompark.R
 import com.biganto.visual.roompark.base.RoomParkApplication
 import com.biganto.visual.roompark.base.RoomParkMainActivity
 import com.biganto.visual.roompark.conductor.BigantoBaseController
+import com.biganto.visual.roompark.presentation.screen.article.util.HtmlPageAdapter
+import com.biganto.visual.roompark.presentation.screen.article.util.HtmlTag
 import com.biganto.visual.roompark.util.extensions.formatToSimple
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import com.google.android.material.textview.MaterialTextView
@@ -53,12 +54,14 @@ class ArticleScreenController :
     @BindView(R.id.articleHeaderBlock)
     lateinit var headerBlock: ViewGroup
 
-    @BindView(R.id.articleContent)
-    lateinit var contentView: MaterialTextView
 
     @BindView(R.id.articleCloseButton)
     lateinit var closeArticle: FloatingActionButton
 
+    @BindView(R.id.articleBodyRecyclerView)
+    lateinit var articleRecyclerView: RecyclerView
+
+
 
     val blurPreview:ImageView by lazy {
        headerBlock.findViewById<ImageView>(R.id.articlePreviewBlurred)
@@ -82,7 +85,11 @@ class ArticleScreenController :
     }
 
     private fun bindRecycler() {
-
+        articleRecyclerView.isNestedScrollingEnabled = true
+        articleRecyclerView.layoutManager =
+            LinearLayoutManager(activity, RecyclerView.VERTICAL, false)
+        articleRecyclerView.adapter = HtmlPageAdapter()
+        articleRecyclerView.itemAnimator = null
     }
 
     override fun onViewBound(v: View) {
@@ -109,37 +116,32 @@ class ArticleScreenController :
 
         title.text = viewState.item.title
 
-        val imageGetter = PicassoImageGetter(contentView)
-        val parsedHtml = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
-            Html.fromHtml(viewState.item.htmlBody.replace("<br>","<br />"),
-                HtmlCompat.FROM_HTML_MODE_COMPACT
-                ,
-                imageGetter
-//                Html.ImageGetter { url ->
-//                    val rUrl = "room-park.ru$url"
-//                    Timber.d("trying to get image: $rUrl")
-//                    Picasso.get()
-//                        .load(rUrl)
-//                        .get()
-//                        .toDrawable(resources!!)
-////                        .current
-//                }
-                , null)
-        else Html.fromHtml(viewState.item.htmlBody.replace("<br>","<br />")
-            ,
-            imageGetter
-//            Html.ImageGetter { url ->
-//            val rUrl = "room-park.ru$url"
-//            Timber.d("trying to get image: $rUrl")
-//                Picasso.get()
-//                    .load(rUrl)
-//                    .get()
-//                    .toDrawable(resources!!)
-////                    .current
-//            }
-            , null)
-
-        contentView.text = parsedHtml
+//        val imageGetter = PicassoImageGetter()
+
+        val _escaped = Html.escapeHtml(viewState.item.htmlBody)
+        val charset = Charsets.UTF_8
+
+        val reg = "<img\\b(?=\\s)(?=(?:[^>=]|='[^']*'|=\"[^\"]*\"|=[^'\"][^\\s>]*)*?\\ssrc=['\"]([^\"]*)['\"]?)(?:[^>=]|='[^']*'|=\"[^\"]*\"|=[^'\"\\s]*)*\"\\s?\\/?>"
+            .toRegex()
+
+        val _esc =_escaped.toByteArray(charset).contentToString()
+        val z = viewState.item.htmlBody.replace("<\\br>","\n")
+            .replace("<br>","\n")
+            .replace("</br>","\n").toString()
+
+        Timber.d(" escaped lines: ${z}")
+
+        val tags = z.lines().map{
+            val r = reg.matchEntire(it)?.groupValues?.last()
+            Timber.d("matched: $r")
+            val result = if (r == null) HtmlTag.Text(it)
+                        else HtmlTag.ImageSource(r)
+            Timber.d(" result: ${result}")
+            result
+
+        }.toList()
+
+        (articleRecyclerView.adapter as HtmlPageAdapter).setItems(tags)
 
         articleDate.text = viewState.item.published.formatToSimple
 

app/src/main/java/com/biganto/visual/roompark/presentation/screen/article/util/textAdapter.kt

+package com.biganto.visual.roompark.presentation.screen.article.util
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import androidx.recyclerview.widget.RecyclerView
+import butterknife.ButterKnife
+import com.biganto.visual.roompark.R
+import com.google.android.material.textview.MaterialTextView
+import com.squareup.picasso.Picasso
+import timber.log.Timber
+
+/**
+ * Created by Vladislav Bogdashkin on 29.01.2020.
+ */
+
+
+
+sealed class HtmlTag {
+    class Text(val text:String):HtmlTag()
+    class ImageSource(val src:String):HtmlTag()
+}
+
+
+
+class HtmlPageAdapter : RecyclerView.Adapter<HtmlTagViewHolder<HtmlTag>>() {
+
+
+    private val list = mutableListOf<HtmlTag>()
+
+    override fun getItemViewType(position: Int): Int {
+        return when (list[position]){
+            is HtmlTag.Text -> HtmlViewType.TEXT.viewType
+            is HtmlTag.ImageSource -> HtmlViewType.IMG.viewType
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HtmlTagViewHolder<HtmlTag> {
+      val ret = when (HtmlViewType.fromInt(viewType)) {
+            HtmlViewType.TEXT ->
+                HtmlTextViewHolder(
+                    LayoutInflater.from(parent.context)
+                        .inflate(R.layout.htlm_text_viewholder, parent, false)
+                ) as HtmlTagViewHolder<HtmlTag>
+            HtmlViewType.IMG ->
+                HtmlImageViewHolder(
+                    LayoutInflater.from(parent.context)
+                        .inflate(R.layout.htlm_image_viewholder, parent, false)
+                ) as HtmlTagViewHolder<HtmlTag>
+        }
+
+        return  ret
+    }
+
+
+    override fun onBindViewHolder(holder: HtmlTagViewHolder<HtmlTag>, position: Int) {
+        Timber.d(list[position].toString())
+        Timber.d(" holder: ${holder::class} - list: ${list[position]::class}")
+        Timber.d("position - $position")
+        holder.bindModel(list[position])
+    }
+
+    override fun getItemCount(): Int = list.size
+
+
+    fun setItems(items:List<HtmlTag>){
+        this.list.clear()
+        this.list.addAll(items)
+        notifyDataSetChanged()
+    }
+}
+
+abstract class HtmlTagViewHolder<M:HtmlTag>(itemView: View) : RecyclerView.ViewHolder(itemView){
+
+    abstract fun onViewBound(model: M)
+
+    fun bindModel(model: M){
+        ButterKnife.bind(this, itemView)
+        bindedModel = model
+        onViewBound(model)
+    }
+
+
+    protected lateinit var bindedModel: M
+}
+
+class HtmlTextViewHolder(itemView: View) : HtmlTagViewHolder<HtmlTag.Text>(itemView) {
+
+    override fun onViewBound(model: HtmlTag.Text) {
+        (itemView as MaterialTextView).text = model.text
+    }
+
+}
+
+class HtmlImageViewHolder(itemView: View) :HtmlTagViewHolder<HtmlTag.ImageSource>(itemView) {
+
+    override fun onViewBound(model: HtmlTag.ImageSource) {
+        Picasso.get().load(
+            "https://room-park.ru${model.src}"
+        )
+            .into(itemView as ImageView)
+    }
+
+}
+private enum class HtmlViewType(val viewType:Int){
+
+    TEXT(0),
+    IMG(1);
+
+    companion object {
+        fun fromInt(type: Int) = HtmlViewType.values().first { it.viewType == type }
+    }
+
+
+}

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

@@ -19,11 +19,12 @@
         app:layout_constraintTop_toTopOf="parent"
         app:srcCompat="@drawable/default_image_placeholder" />
 
-    <ImageView
+    <com.biganto.visual.roompark.util.view_utils.image_view.RoundedImageView
         android:id="@+id/articlePreview"
+        app:image_corner_radius="4dp"
         android:layout_width="125dp"
         android:layout_height="125dp"
-        android:layout_marginStart="27dp"
+        android:layout_marginStart="16dp"
         android:layout_marginTop="44dp"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"

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

@@ -4,7 +4,9 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
-<LinearLayout
+
+    <LinearLayout
+        android:id="@+id/article_container"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="vertical">
@@ -25,18 +27,11 @@
             android:paddingEnd="16dp"
             android:text="В ЖК «РУМЯНЦЕВО-ПАРК» ИПОТЕЧНАЯ СТАВКА - 6,5%" />
 
-    <com.google.android.material.textview.MaterialTextView
-        android:id="@+id/articleContent"
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/articleBodyRecyclerView"
             android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:paddingStart="16dp"
-        android:paddingEnd="16dp"
-        android:text="С марта 2019 года для всех покупателей квартир в жилом комплексе бизнес-класса «Румянцево-Парк» от компании Lexion Development, доступна минимальная ипотечная ставка от банка-партнера ПАО Банк ВТБ в размере 6,5% по программе субсидирования ипотеки от застройщика.
-
-Минимальная процентная ставка действительна при покупке любого типа квартир в жилом комплексе – от студий 23,8 кв. м до четырехкомнатных квартир площадью 102,7 кв. м. Минимальный первоначальный взнос составляет от 20%.
-
-Более подробная информация доступна в офисе продаж по телефону: +7 (495) 127-86-86" />
 
-</LinearLayout>
+            android:layout_height="wrap_content" />
+    </LinearLayout>
 
 </androidx.core.widget.NestedScrollView>
\ No newline at end of file

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

+<?xml version="1.0" encoding="utf-8"?>
+<com.biganto.visual.roompark.util.view_utils.image_view.RoundedImageView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    app:image_corner_radius="4dp" />
\ No newline at end of file

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

+<?xml version="1.0" encoding="utf-8"?>
+<com.google.android.material.textview.MaterialTextView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    style="@style/Default_TextView.Header_Text"
+    android:minHeight="16dp"
+    />
\ No newline at end of file