Sample app, update check

app-sample/build.gradle

@@ -3,6 +3,15 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'kotlin-android-extensions'
 
+def gitSha = { ->
+    def output = new ByteArrayOutputStream()
+    exec {
+        commandLine 'git', 'rev-parse', '--short', 'HEAD'
+        standardOutput = output
+    }
+    return output.toString().trim()
+}.memoize()
+
 android {
 
     compileSdkVersion config['compile-sdk']
@@ -17,7 +26,10 @@ android {
 
         resConfig 'en'
 
-        setProperty("archivesBaseName", "markwon-$versionName")
+        setProperty("archivesBaseName", "markwon")
+
+        buildConfigField 'String', 'GIT_SHA', "\"${gitSha()}\""
+        buildConfigField 'String', 'GIT_REPOSITORY', '"https://github.com/noties/Markwon"'
 
         final def scheme = 'markwon'
         buildConfigField 'String', 'DEEPLINK_SCHEME', "\"$scheme\""
@@ -41,6 +53,37 @@ android {
             java.srcDirs += '../sample-utils/annotations'
         }
     }
+
+    signingConfigs {
+        config {
+
+            final def keystoreFile = project.file('keystore.jks')
+            final def keystoreFilePassword = 'MARKWON_KEYSTORE_FILE_PASSWORD'
+            final def keystoreAlias = 'MARKWON_KEY_ALIAS'
+            final def keystoreAliasPassword = 'MARKWON_KEY_ALIAS_PASSWORD'
+
+            final def properties = [
+                    keystoreFilePassword,
+                    keystoreAlias,
+                    keystoreAliasPassword
+            ]
+
+            if (!keystoreFile.exists()) {
+                throw new IllegalStateException("No '${keystoreFile.name}' file is found.")
+            }
+
+            final def missingProperties = properties.findAll { !project.hasProperty(it) }
+            if (!missingProperties.isEmpty()) {
+                throw new IllegalStateException("Missing required signing properties: $missingProperties")
+            }
+
+            storeFile keystoreFile
+            storePassword project[keystoreFilePassword]
+
+            keyAlias project[keystoreAlias]
+            keyPassword project[keystoreAliasPassword]
+        }
+    }
 }
 
 kapt {

app-sample/deploy.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env sh
+
+# abort on errors
+set -e
+
+# build
+../gradlew :app-sample:clean
+../gradlew :app-sample:assembleDebug
+
+# navigate into the build output directory
+cd ./build/outputs/apk/debug/
+
+revision=$(git rev-parse --short HEAD)
+
+echo "output.json" > ./.gitignore
+echo "$revision" > ./version
+
+git init
+git add -A
+git commit -m "sample $revision"
+
+git push -f git@github.com:noties/Markwon.git master:sample-store
+
+cd -

app-sample/release/output.json

@@ -0,0 +1,20 @@
+{
+  "version": 1,
+  "artifactType": {
+    "type": "APK",
+    "kind": "Directory"
+  },
+  "applicationId": "io.noties.markwon.app",
+  "variantName": "release",
+  "elements": [
+    {
+      "type": "SINGLE",
+      "filters": [],
+      "properties": [],
+      "versionCode": 1,
+      "versionName": "1",
+      "enabled": true,
+      "outputFile": "markwon-4.4.1-SNAPSHOT-release.apk"
+    }
+  ]
+}

app-sample/src/main/java/io/noties/markwon/app/sample/ui/SampleListFragment.kt

@@ -1,8 +1,12 @@
 package io.noties.markwon.app.sample.ui
 
+import android.app.AlertDialog
 import android.content.Context
+import android.content.Intent
+import android.net.Uri
 import android.os.Bundle
 import android.os.Parcelable
+import android.text.TextUtils
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -15,20 +19,26 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import io.noties.adapt.Adapt
 import io.noties.adapt.DiffUtilDataSetChanged
+import io.noties.adapt.Item
 import io.noties.debug.Debug
 import io.noties.markwon.Markwon
 import io.noties.markwon.app.App
+import io.noties.markwon.app.BuildConfig
 import io.noties.markwon.app.R
 import io.noties.markwon.app.readme.ReadMeActivity
 import io.noties.markwon.app.sample.Sample
-import io.noties.markwon.app.sample.SampleItem
 import io.noties.markwon.app.sample.SampleManager
 import io.noties.markwon.app.sample.SampleSearch
+import io.noties.markwon.app.sample.ui.adapt.CheckForUpdateItem
+import io.noties.markwon.app.sample.ui.adapt.SampleItem
+import io.noties.markwon.app.sample.ui.adapt.VersionItem
 import io.noties.markwon.app.utils.Cancellable
+import io.noties.markwon.app.utils.UpdateUtils
 import io.noties.markwon.app.utils.displayName
 import io.noties.markwon.app.utils.hidden
 import io.noties.markwon.app.utils.onPreDraw
 import io.noties.markwon.app.utils.recyclerView
+import io.noties.markwon.app.utils.stackTraceString
 import io.noties.markwon.app.utils.tagDisplayName
 import io.noties.markwon.app.widget.SearchBar
 import io.noties.markwon.movement.MovementMethodPlugin
@@ -50,6 +60,13 @@ class SampleListFragment : Fragment() {
     private var pendingRecyclerScrollPosition: RecyclerScrollPosition? = null
 
     private var cancellable: Cancellable? = null
+    private var checkForUpdateCancellable: Cancellable? = null
+
+    private lateinit var progressBar: View
+
+    private val versionItem: VersionItem by lazy(LazyThreadSafetyMode.NONE) {
+        VersionItem()
+    }
 
     private val sampleManager: SampleManager
         get() = App.sampleManager
@@ -73,6 +90,8 @@ class SampleListFragment : Fragment() {
 
         val context = requireContext()
 
+        progressBar = view.findViewById(R.id.progress_bar)
+
         val searchBar: SearchBar = view.findViewById(R.id.search_bar)
         searchBar.onSearchListener = {
             search = it
@@ -187,16 +206,30 @@ class SampleListFragment : Fragment() {
         }
     }
 
-    private fun bindSamples(samples: List<Sample>) {
+    private fun bindSamples(samples: List<Sample>, addVersion: Boolean) {
-        val items = samples.map {
+
-            SampleItem(
+        val items: List<Item<*>> = samples
-                    markwon,
+                .map {
-                    it,
+                    SampleItem(
-                    { artifact -> openArtifact(artifact) },
+                            markwon,
-                    { tag -> openTag(tag) },
+                            it,
-                    { sample -> openSample(sample) }
+                            { artifact -> openArtifact(artifact) },
-            )
+                            { tag -> openTag(tag) },
-        }
+                            { sample -> openSample(sample) }
+                    )
+                }
+                .let {
+                    if (addVersion) {
+                        val list: List<Item<*>> = it
+                        list.toMutableList().apply {
+                            add(0, CheckForUpdateItem(this@SampleListFragment::checkForUpdate))
+                            add(0, versionItem)
+                        }
+                    } else {
+                        it
+                    }
+                }
+
         adapt.setItems(items)
 
         val recyclerView = adapt.recyclerView ?: return
@@ -218,6 +251,66 @@ class SampleListFragment : Fragment() {
         }
     }
 
+    private fun checkForUpdate() {
+        val current = checkForUpdateCancellable
+        if (current != null && !current.isCancelled) {
+            return
+        }
+
+        progressBar.hidden = false
+        checkForUpdateCancellable = UpdateUtils.checkForUpdate { result ->
+            progressBar.post {
+                processUpdateResult(result)
+            }
+        }
+    }
+
+    private fun processUpdateResult(result: UpdateUtils.Result) {
+        val context = context ?: return
+
+        progressBar.hidden = true
+
+        val builder = AlertDialog.Builder(context)
+
+        when (result) {
+            is UpdateUtils.Result.UpdateAvailable -> {
+                val md = """
+                    ## Update available
+                    Would you like to download it?
+                """.trimIndent()
+                builder.setMessage(markwon.toMarkdown(md))
+                builder.setNegativeButton(android.R.string.cancel, null)
+                builder.setPositiveButton("Download") { _, _ ->
+                    val intent = Intent(Intent.ACTION_VIEW, Uri.parse(result.url))
+                    startActivity(Intent.createChooser(intent, null))
+                }
+            }
+
+            is UpdateUtils.Result.NoUpdate -> {
+                val md = """
+                    ## No update
+                    You are using latest version (${BuildConfig.GIT_SHA})
+                """.trimIndent()
+                builder.setMessage(markwon.toMarkdown(md))
+                builder.setPositiveButton(android.R.string.ok, null)
+            }
+
+            is UpdateUtils.Result.Error -> {
+                // trimIndent is confused by tabs in stack trace
+                val md = """
+## Error
+```
+${result.throwable.stackTraceString()}
+```
+"""
+                builder.setMessage(markwon.toMarkdown(md))
+                builder.setPositiveButton(android.R.string.ok, null)
+            }
+        }
+
+        builder.show()
+    }
+
     private fun openArtifact(artifact: MarkwonArtifact) {
         Debug.i(artifact)
         openResultFragment(init(artifact))
@@ -262,7 +355,8 @@ class SampleListFragment : Fragment() {
         }
 
         cancellable = sampleManager.samples(sampleSearch) {
-            bindSamples(it)
+            val addVersion = sampleSearch is SampleSearch.All && TextUtils.isEmpty(sampleSearch.text)
+            bindSamples(it, addVersion)
         }
     }
 

app-sample/src/main/java/io/noties/markwon/app/sample/ui/adapt/CheckForUpdateItem.kt

@@ -0,0 +1,22 @@
+package io.noties.markwon.app.sample.ui.adapt
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import io.noties.adapt.Item
+import io.noties.markwon.app.R
+
+class CheckForUpdateItem(private val action: () -> Unit) : Item<CheckForUpdateItem.Holder>(42L) {
+
+    override fun createHolder(inflater: LayoutInflater, parent: ViewGroup): Holder {
+        return Holder(inflater.inflate(R.layout.adapt_check_for_update, parent, false))
+    }
+
+    override fun render(holder: Holder) {
+        holder.button.setOnClickListener { action() }
+    }
+
+    class Holder(view: View) : Item.Holder(view) {
+        val button: View = requireView(R.id.button)
+    }
+}

app-sample/src/main/java/io/noties/markwon/app/sample/ui/adapt/SampleItem.kt

@@ -1,4 +1,4 @@
-package io.noties.markwon.app.sample
+package io.noties.markwon.app.sample.ui.adapt
 
 import android.text.Spanned
 import android.view.LayoutInflater
@@ -8,6 +8,7 @@ import android.widget.TextView
 import io.noties.adapt.Item
 import io.noties.markwon.Markwon
 import io.noties.markwon.app.R
+import io.noties.markwon.app.sample.Sample
 import io.noties.markwon.app.utils.displayName
 import io.noties.markwon.app.utils.hidden
 import io.noties.markwon.app.utils.tagDisplayName

app-sample/src/main/java/io/noties/markwon/app/sample/ui/adapt/VersionItem.kt

@@ -0,0 +1,84 @@
+package io.noties.markwon.app.sample.ui.adapt
+
+import android.content.Context
+import android.text.Spanned
+import android.text.TextPaint
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import io.noties.adapt.Item
+import io.noties.markwon.AbstractMarkwonPlugin
+import io.noties.markwon.LinkResolver
+import io.noties.markwon.Markwon
+import io.noties.markwon.MarkwonSpansFactory
+import io.noties.markwon.app.BuildConfig
+import io.noties.markwon.app.R
+import io.noties.markwon.core.CoreProps
+import io.noties.markwon.core.MarkwonTheme
+import io.noties.markwon.core.spans.LinkSpan
+import io.noties.markwon.html.HtmlPlugin
+import io.noties.markwon.image.ImagesPlugin
+import io.noties.markwon.movement.MovementMethodPlugin
+import org.commonmark.node.Link
+
+class VersionItem : Item<VersionItem.Holder>(42L) {
+
+    private lateinit var context: Context
+
+    private val markwon: Markwon by lazy(LazyThreadSafetyMode.NONE) {
+        Markwon.builder(context)
+                .usePlugin(ImagesPlugin.create())
+                .usePlugin(MovementMethodPlugin.link())
+                .usePlugin(HtmlPlugin.create())
+                .usePlugin(object : AbstractMarkwonPlugin() {
+                    override fun configureSpansFactory(builder: MarkwonSpansFactory.Builder) {
+                        builder.setFactory(Link::class.java) { configuration, props ->
+                            LinkSpanNoUnderline(
+                                    configuration.theme(),
+                                    CoreProps.LINK_DESTINATION.require(props),
+                                    configuration.linkResolver()
+                            )
+                        }
+                    }
+                })
+                .build()
+    }
+
+    private val text: Spanned by lazy(LazyThreadSafetyMode.NONE) {
+        val md = """
+            <a href="${BuildConfig.GIT_REPOSITORY}/blob/master/CHANGELOG.md">
+            
+            
+            ![stable](https://img.shields.io/maven-central/v/io.noties.markwon/core.svg?label=stable)
+            ![snapshot](https://img.shields.io/nexus/s/https/oss.sonatype.org/io.noties.markwon/core.svg?label=snapshot)
+            ![changelog](https://fonts.gstatic.com/s/i/materialicons/open_in_browser/v6/24px.svg?download=true)
+            </a>
+        """.trimIndent()
+        markwon.toMarkdown(md)
+    }
+
+    override fun createHolder(inflater: LayoutInflater, parent: ViewGroup): Holder {
+        context = parent.context
+        return Holder(inflater.inflate(R.layout.adapt_version, parent, false))
+    }
+
+    override fun render(holder: Holder) {
+        markwon.setParsedMarkdown(holder.textView, text)
+    }
+
+    class Holder(view: View) : Item.Holder(view) {
+        val textView: TextView = requireView(R.id.text_view)
+    }
+
+    class LinkSpanNoUnderline(
+            theme: MarkwonTheme,
+            destination: String,
+            resolver: LinkResolver
+    ) : LinkSpan(theme, destination, resolver) {
+        override fun updateDrawState(ds: TextPaint) {
+            super.updateDrawState(ds)
+            ds.isUnderlineText = false
+        }
+    }
+}

app-sample/src/main/java/io/noties/markwon/app/samples/GithubUserIssueInlineParsingSample.java

@@ -11,6 +11,7 @@ import java.util.regex.Pattern;
 
 import io.noties.markwon.AbstractMarkwonPlugin;
 import io.noties.markwon.Markwon;
+import io.noties.markwon.app.BuildConfig;
 import io.noties.markwon.app.sample.Tags;
 import io.noties.markwon.app.sample.ui.MarkwonTextViewSample;
 import io.noties.markwon.inlineparser.InlineProcessor;
@@ -78,7 +79,7 @@ class IssueInlineProcessor extends InlineProcessor {
 
   @NonNull
   private static String createIssueOrPullRequestLinkDestination(@NonNull String id) {
-    return "https://github.com/noties/Markwon/issues/" + id;
+    return BuildConfig.GIT_REPOSITORY + "/issues/" + id;
   }
 }
 

app-sample/src/main/java/io/noties/markwon/app/samples/GithubUserIssueOnTextAddedSample.java

@@ -13,6 +13,7 @@ import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.MarkwonVisitor;
 import io.noties.markwon.RenderProps;
 import io.noties.markwon.SpannableBuilder;
+import io.noties.markwon.app.BuildConfig;
 import io.noties.markwon.app.sample.Tags;
 import io.noties.markwon.app.sample.ui.MarkwonTextViewSample;
 import io.noties.markwon.core.CorePlugin;
@@ -87,7 +88,7 @@ class GithubLinkifyRegexTextAddedListener implements CorePlugin.OnTextAddedListe
     // issues and pull-requests on github follow the same pattern and we
     // cannot know for sure which one it is, but if we use issues for all types,
     // github will automatically redirect to pull-request if it's the one which is opened
-    return "https://github.com/noties/Markwon/issues/" + number;
+    return BuildConfig.GIT_REPOSITORY + "/issues/" + number;
   }
 
   @NonNull

app-sample/src/main/java/io/noties/markwon/app/samples/ToastDynamicContentSample.kt

@@ -5,6 +5,7 @@ import android.view.ViewGroup
 import android.widget.TextView
 import android.widget.Toast
 import io.noties.markwon.Markwon
+import io.noties.markwon.app.BuildConfig
 import io.noties.markwon.app.sample.Tags
 import io.noties.markwon.app.sample.ui.MarkwonTextViewSample
 import io.noties.markwon.image.ImagesPlugin
@@ -23,7 +24,7 @@ class ToastDynamicContentSample : MarkwonTextViewSample() {
     val md = """
       # Head!
       
-      ![alt](https://github.com/noties/Markwon/raw/master/art/markwon_logo.png)
+      ![alt](${BuildConfig.GIT_REPOSITORY}/raw/master/art/markwon_logo.png)
       
       Do you see an image? ☝️
     """.trimIndent()

app-sample/src/main/java/io/noties/markwon/app/samples/html/HtmlDetailsSample.java

@@ -28,6 +28,7 @@ import java.util.List;
 import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonVisitor;
 import io.noties.markwon.SpannableBuilder;
+import io.noties.markwon.app.BuildConfig;
 import io.noties.markwon.app.R;
 import io.noties.markwon.app.sample.Tags;
 import io.noties.markwon.app.sample.ui.MarkwonSample;
@@ -56,7 +57,7 @@ public class HtmlDetailsSample extends MarkwonSample {
 
   @Override
   protected int getLayoutResId() {
-    return R.layout.activity_html_details;
+    return R.layout.sample_html_details;
   }
 
   @Override
@@ -83,7 +84,8 @@ public class HtmlDetailsSample extends MarkwonSample {
       "* list\n" +
       "* with\n" +
       "\n\n" +
-      "![img](https://raw.githubusercontent.com/noties/Markwon/master/art/markwon_logo.png)\n\n" +
+      "![img](" + BuildConfig.GIT_REPOSITORY + "/raw/master/art/markwon_logo.png)\n\n" +
+      "" +
       " 1. nested\n" +
       " 1. items\n" +
       "\n" +

app-sample/src/main/java/io/noties/markwon/app/samples/movementmethod/ExplicitMovementMethodSample.kt

@@ -2,6 +2,7 @@ package io.noties.markwon.app.samples.movementmethod
 
 import android.text.method.ScrollingMovementMethod
 import io.noties.markwon.Markwon
+import io.noties.markwon.app.BuildConfig
 import io.noties.markwon.app.sample.Tags
 import io.noties.markwon.app.sample.ui.MarkwonTextViewSample
 import io.noties.markwon.sample.annotations.MarkwonArtifact
@@ -22,7 +23,7 @@ class ExplicitMovementMethodSample : MarkwonTextViewSample() {
       If `TextView` already has a movement method specified, then `Markwon`
       won't be applying a default one. You can specify movement 
       method via call to `setMovementMethod`. If your movement method can
-      handle [links](https://github.com/noties/Markwon) then link would be
+      handle [links](${BuildConfig.GIT_REPOSITORY}) then link would be
       _clickable_
     """.trimIndent()
 

app-sample/src/main/java/io/noties/markwon/app/samples/movementmethod/ImplicitMovementMethodSample.kt

@@ -1,6 +1,7 @@
 package io.noties.markwon.app.samples.movementmethod
 
 import io.noties.markwon.Markwon
+import io.noties.markwon.app.BuildConfig
 import io.noties.markwon.app.sample.Tags
 import io.noties.markwon.app.sample.ui.MarkwonTextViewSample
 import io.noties.markwon.sample.annotations.MarkwonArtifact
@@ -18,7 +19,7 @@ class ImplicitMovementMethodSample : MarkwonTextViewSample() {
     val md = """
       # Implicit movement method
       By default `Markwon` applies `LinkMovementMethod` if it is missing,
-      so in order for [links](https://github.com/noties/Markwon) to be clickable
+      so in order for [links](${BuildConfig.GIT_REPOSITORY}) to be clickable
       nothing special should be done
     """.trimIndent()
 

app-sample/src/main/java/io/noties/markwon/app/utils/ThrowableUtils.kt

@@ -0,0 +1,13 @@
+package io.noties.markwon.app.utils
+
+import java.io.PrintWriter
+import java.io.StringWriter
+
+object ThrowableUtils
+
+fun Throwable.stackTraceString(): String {
+    val stringWriter = StringWriter()
+    val printWriter = PrintWriter(stringWriter)
+    this.printStackTrace(printWriter)
+    return stringWriter.toString()
+}

app-sample/src/main/java/io/noties/markwon/app/utils/UncaughtExceptionHandler.kt

@@ -0,0 +1,10 @@
+package io.noties.markwon.app.utils
+
+@Suppress("unused")
+class UncaughtExceptionHandler(private val origin: Thread.UncaughtExceptionHandler?)
+    : Thread.UncaughtExceptionHandler {
+
+    override fun uncaughtException(t: Thread?, e: Throwable?) {
+        
+    }
+}

app-sample/src/main/java/io/noties/markwon/app/utils/UpdateUtils.kt

@@ -0,0 +1,63 @@
+package io.noties.markwon.app.utils
+
+import io.noties.markwon.app.App
+import io.noties.markwon.app.BuildConfig
+import okhttp3.Call
+import okhttp3.Callback
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import java.io.IOException
+
+object UpdateUtils {
+
+    sealed class Result {
+        class UpdateAvailable(val url: String) : Result()
+        object NoUpdate : Result()
+        class Error(val throwable: Throwable) : Result()
+    }
+
+    fun checkForUpdate(updateAction: (Result) -> Unit): Cancellable {
+        var action: ((Result) -> Unit)? = updateAction
+
+        val future = App.executorService
+                .submit {
+                    val url = "${BuildConfig.GIT_REPOSITORY}/raw/sample-store/version"
+                    val request = Request.Builder()
+                            .get()
+                            .url(url)
+                            .build()
+                    OkHttpClient().newCall(request).enqueue(object : Callback {
+                        override fun onFailure(call: Call, e: IOException) {
+                            action?.invoke(Result.Error(e))
+                        }
+
+                        override fun onResponse(call: Call, response: Response) {
+                            try {
+                                val revision = response.body()?.string()
+                                val hasUpdate = revision != null && BuildConfig.GIT_SHA != revision
+                                if (hasUpdate) {
+                                    action?.invoke(Result.UpdateAvailable(apkUrl))
+                                } else {
+                                    action?.invoke(Result.NoUpdate)
+                                }
+                            } catch (e: IOException) {
+                                action?.invoke(Result.Error(e))
+                            }
+                        }
+                    })
+                }
+
+        return object : Cancellable {
+            override val isCancelled: Boolean
+                get() = future.isDone
+
+            override fun cancel() {
+                action = null
+                future.cancel(true)
+            }
+        }
+    }
+
+    private const val apkUrl = "${BuildConfig.GIT_REPOSITORY}/raw/sample-store/markwon-debug.apk"
+}

app-sample/src/main/res/drawable/ic_open_in_browser_white_24dp.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M19,4L5,4c-1.11,0 -2,0.9 -2,2v12c0,1.1 0.89,2 2,2h4v-2L5,18L5,8h14v10h-4v2h4c1.1,0 2,-0.9 2,-2L21,6c0,-1.1 -0.89,-2 -2,-2zM12,10l-4,4h3v6h2v-6h3l-4,-4z" />
+</vector>

app-sample/src/main/res/layout/adapt_check_for_update.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="@dimen/content_padding"
+    android:paddingRight="@dimen/content_padding">
+
+    <Button
+        android:id="@+id/button"
+        style="@android:style/Widget.Material.Button.Borderless.Colored"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/check_for_update" />
+
+</FrameLayout>

app-sample/src/main/res/layout/adapt_version.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/text_view"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="@dimen/content_padding_double"
+    android:paddingTop="@dimen/content_padding"
+    android:paddingRight="@dimen/content_padding_double"
+    android:paddingBottom="@dimen/content_padding"
+    android:textAppearance="?android:attr/textAppearanceMedium"
+    tools:text="Badges here" />

app-sample/src/main/res/layout/fragment_sample_list.xml

@@ -48,6 +48,17 @@
 
     </LinearLayout>
 
+    <ProgressBar
+        android:id="@+id/progress_bar"
+        style="@android:style/Widget.Material.ProgressBar.Horizontal"
+        android:layout_width="match_parent"
+        android:layout_height="16dip"
+        android:layout_marginTop="-8dip"
+        android:layout_marginBottom="-8dip"
+        android:indeterminate="true"
+        android:visibility="gone"
+        tools:visibility="visible" />
+
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"

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

@@ -5,6 +5,8 @@
     <string name="tab_bar_preview">Preview</string>
     <string name="tab_bar_code">Code</string>
 
+    <string name="check_for_update">Check for update</string>
+
     <string name="lorem"><![CDATA[
 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis rutrum orci at aliquet dapibus. Quisque laoreet fermentum bibendum. Suspendisse euismod nisl vel sapien viverra faucibus. Nulla vel neque volutpat, egestas dui ac, consequat elit. Donec et interdum massa. Quisque porta ornare posuere. Nam at ante a felis facilisis tempus eu et erat. Curabitur auctor mauris eget purus iaculis vulputate.
 

markwon-core/build.gradle

@@ -29,7 +29,6 @@ dependencies {
     testImplementation deps['commons-io']
 
     deps['test'].with {
-
         testImplementation it['junit']
         testImplementation it['robolectric']
         testImplementation it['mockito']