Improve markdown activity.

app/src/main/java/com/fox2code/mmm/markdown/MarkdownActivity.java

@@ -4,7 +4,9 @@ import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.util.Log;
+import android.view.View;
 import android.view.ViewGroup;
+import android.view.WindowManager;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -40,7 +42,12 @@ public class MarkdownActivity extends CompatActivity {
                 .getString(Constants.EXTRA_MARKDOWN_TITLE);
         String config = intent.getExtras()
                 .getString(Constants.EXTRA_MARKDOWN_CONFIG);
-        if (title != null && !title.isEmpty()) setTitle(title);
+        if (title != null && !title.isEmpty()) {
+            setTitle(title);
+        }
+        this.getWindow().setFlags(
+                WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION,
+                WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
         if (config != null && !config.isEmpty()) {
             String configPkg = IntentHelper.getPackageOfConfig(config);
             try {
@@ -75,6 +82,8 @@ public class MarkdownActivity extends CompatActivity {
                 String markdown = new String(rawMarkdown, StandardCharsets.UTF_8);
                 Log.d(TAG, "Done!");
                 runOnUiThread(() -> {
+                    findViewById(R.id.markdownFooter)
+                            .setMinimumHeight(this.getNavigationBarHeight());
                     MainApplication.getINSTANCE().getMarkwon().setMarkdown(
                             textView, MarkdownUrlLinker.urlLinkify(markdown));
                     if (markdownBackground != null) {
@@ -92,4 +101,11 @@ public class MarkdownActivity extends CompatActivity {
             }
         }, "Markdown load thread").start();
     }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        View footer = findViewById(R.id.markdownFooter);
+        if (footer != null) footer.setMinimumHeight(this.getNavigationBarHeight());
+    }
 }

app/src/main/java/com/fox2code/mmm/markdown/MarkdownUrlLinker.java

@@ -15,8 +15,9 @@ public class MarkdownUrlLinker {
         ArrayList<LinkifyTask> linkifyTasks = new ArrayList<>();
         int extra = 0;
         while (index != -1) {
-            int end = Math.min(url.indexOf('\n', index),
+            int end = url.indexOf(' ', index);
-                    url.indexOf(' ', index));
+            end = end == -1 ? url.indexOf('\n', index) :
+                    Math.min(url.indexOf('\n', index), end);
             if (end == -1) end = url.length();
             if (index == 0 ||
                     '\n' == url.charAt(index - 1) ||

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

@@ -1,25 +1,36 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@color/black"
-    android:id="@+id/markdownBackground">
+    android:id="@+id/markdownBackground"
+    app:fitsSystemWindowsInsets="top">
     <androidx.cardview.widget.CardView
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
-        android:layout_margin="@dimen/markdown_border_content"
         android:gravity="center_vertical"
-        app:cardCornerRadius="@dimen/card_corner_radius" >
+        app:cardCornerRadius="@dimen/card_corner_radius">
         <ScrollView
             android:layout_width="match_parent"
             android:layout_height="wrap_content">
-            <TextView
+            <LinearLayout
-                android:id="@+id/markdownView"
-                android:text="@string/loading"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content" />
+                android:layout_height="wrap_content"
+                android:orientation="vertical">
+                <TextView
+                    android:id="@+id/markdownView"
+                    android:text="@string/loading"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="@dimen/markdown_border_content" />
+
+                <TextView
+                    android:id="@+id/markdownFooter"
+                    android:text=""
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content" />
+            </LinearLayout>
         </ScrollView>
     </androidx.cardview.widget.CardView>
 </LinearLayout>

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

@@ -4,5 +4,5 @@
     <dimen name="card_corner_radius">8dp</dimen>
     <dimen name="markdown_side_clearance">0dp</dimen>
     <dimen name="markdown_topdown_clearance">32dp</dimen>
-    <dimen name="markdown_border_content">0dp</dimen>
+    <dimen name="markdown_border_content">8dp</dimen>
 </resources>