diff --git a/app/build.gradle b/app/build.gradle
index bc2bca96..286e6bb9 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -27,13 +27,13 @@ android {
dependencies {
- compile project(':library')
- compile project(':library-image-loader')
+ implementation project(':library')
+ implementation project(':library-image-loader')
- compile 'ru.noties:debug:3.0.0@jar'
+ implementation 'ru.noties:debug:3.0.0@jar'
- compile OK_HTTP
+ implementation OK_HTTP
- compile 'com.google.dagger:dagger:2.10'
+ implementation 'com.google.dagger:dagger:2.10'
annotationProcessor 'com.google.dagger:dagger-compiler:2.10'
}
diff --git a/build.gradle b/build.gradle
index 036e147b..ef441eaf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ buildscript {
google()
}
dependencies {
- classpath 'com.android.tools.build:gradle:2.3.3'
+ classpath 'com.android.tools.build:gradle:3.0.1'
}
}
@@ -22,7 +22,7 @@ task clean(type: Delete) {
}
task wrapper(type: Wrapper) {
- gradleVersion '4.3'
+ gradleVersion '4.5'
distributionType 'all'
}
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 7a3265ee..27768f1b 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 590f0e81..610ad4c5 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.5-all.zip
diff --git a/library-image-loader/build.gradle b/library-image-loader/build.gradle
index 3a909101..5c8f993b 100644
--- a/library-image-loader/build.gradle
+++ b/library-image-loader/build.gradle
@@ -19,10 +19,10 @@ android {
}
dependencies {
- compile project(':library')
- compile ANDROID_SVG
- compile ANDROID_GIF
- compile OK_HTTP
+ api project(':library')
+ api ANDROID_SVG
+ api ANDROID_GIF
+ api OK_HTTP
}
if (project.hasProperty('release')) {
diff --git a/library-view/build.gradle b/library-view/build.gradle
index c0675588..bb6073b7 100644
--- a/library-view/build.gradle
+++ b/library-view/build.gradle
@@ -14,8 +14,8 @@ android {
}
dependencies {
- compile project(':library')
- provided SUPPORT_APP_COMPAT
+ api project(':library')
+ compileOnly SUPPORT_APP_COMPAT
}
if (project.hasProperty('release')) {
diff --git a/library/build.gradle b/library/build.gradle
index c384c1b6..702b609b 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -14,10 +14,10 @@ android {
}
dependencies {
- compile SUPPORT_ANNOTATIONS
- compile COMMON_MARK
- compile COMMON_MARK_STRIKETHROUGHT
- compile COMMON_MARK_TABLE
+ api SUPPORT_ANNOTATIONS
+ api COMMON_MARK
+ api COMMON_MARK_STRIKETHROUGHT
+ api COMMON_MARK_TABLE
}
if (project.hasProperty('release')) {
diff --git a/sample-custom-extension/README.md b/sample-custom-extension/README.md
new file mode 100644
index 00000000..194557ab
--- /dev/null
+++ b/sample-custom-extension/README.md
@@ -0,0 +1,26 @@
+# Custom extension
+
+This module provides a simple implementation for icons that are bundled in your application resources using custom `DelimiterProcessor`. It can be used as a reference when dealing with new functionality based on _delimiters_.
+
+```markdown
+# Hello @ic-android-black-24
+
+**Please** click @ic-home-green-24 (home icon) if you want to go home.
+```
+
+Here we will substitute elements starting with `@ic-` for icons that we have in our resources:
+
+* `@ic-android-black-24` -> `R.drawable.ic_android_black_24dp`
+* `@ic-home-green-24` -> `R.drawable.ic_home_green_24dp`
+
+In order to provide reliable parsing we need to have delimiters _around_ desired content. So, `@ic-home-green-24` would become `@ic-home-green-24@`. This is current limitation of [commonmark-java](https://github.com/atlassian/commonmark-java) library that Markwon uses underneath. There is an ongoing [issue](https://github.com/atlassian/commonmark-java/issues/113) that might change this in future thought.
+
+But as we known the pattern beforehand it's pretty easy to pre-process raw markdown and make it the way we want it. Please refer to `IconProcessor#process` method for the reference.
+
+So, the our steps would be:
+
+* prepare raw markdown (wrap icons with `@` if it's not already)
+* construct a Parser with our registered delimiter processor
+* parse markdown and obtain a `Node`
+* create a node visitor that will additionally visit custom node (`IconNode`)
+* use markdown
diff --git a/sample-custom-extension/build.gradle b/sample-custom-extension/build.gradle
new file mode 100644
index 00000000..baa37484
--- /dev/null
+++ b/sample-custom-extension/build.gradle
@@ -0,0 +1,22 @@
+apply plugin: 'com.android.application'
+
+android {
+
+ compileSdkVersion TARGET_SDK
+ buildToolsVersion BUILD_TOOLS
+
+ defaultConfig {
+
+ applicationId "ru.noties.markwon.sample.extension"
+
+ // using 21 as minimum only to be able to vector assets
+ minSdkVersion 21
+ targetSdkVersion TARGET_SDK
+ versionCode 1
+ versionName version
+ }
+}
+
+dependencies {
+ implementation project(':library')
+}
diff --git a/sample-custom-extension/src/main/AndroidManifest.xml b/sample-custom-extension/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..1553a0a6
--- /dev/null
+++ b/sample-custom-extension/src/main/AndroidManifest.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="ru.noties.markwon.sample.extension">
+
+ <application
+ android:allowBackup="true"
+ android:icon="@mipmap/ic_launcher"
+ android:label="@string/app_name"
+ android:roundIcon="@mipmap/ic_launcher_round"
+ android:supportsRtl="true"
+ android:theme="@style/AppTheme">
+
+ <activity android:name=".MainActivity">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+ </application>
+
+</manifest>
\ No newline at end of file
diff --git a/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconGroupNode.java b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconGroupNode.java
new file mode 100644
index 00000000..193b33b8
--- /dev/null
+++ b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconGroupNode.java
@@ -0,0 +1,8 @@
+package ru.noties.markwon.sample.extension;
+
+import org.commonmark.node.CustomNode;
+
+@SuppressWarnings("WeakerAccess")
+public class IconGroupNode extends CustomNode {
+
+}
diff --git a/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconNode.java b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconNode.java
new file mode 100644
index 00000000..3d40ec2f
--- /dev/null
+++ b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconNode.java
@@ -0,0 +1,61 @@
+package ru.noties.markwon.sample.extension;
+
+import android.support.annotation.NonNull;
+
+import org.commonmark.node.CustomNode;
+import org.commonmark.node.Delimited;
+
+@SuppressWarnings("WeakerAccess")
+public class IconNode extends CustomNode implements Delimited {
+
+ public static final char DELIMITER = '@';
+
+ public static final String DELIMITER_STRING = "" + DELIMITER;
+
+
+ private final String name;
+
+ private final String color;
+
+ private final String size;
+
+ public IconNode(@NonNull String name, @NonNull String color, @NonNull String size) {
+ this.name = name;
+ this.color = color;
+ this.size = size;
+ }
+
+ @NonNull
+ public String name() {
+ return name;
+ }
+
+ @NonNull
+ public String color() {
+ return color;
+ }
+
+ @NonNull
+ public String size() {
+ return size;
+ }
+
+ @Override
+ public String getOpeningDelimiter() {
+ return DELIMITER_STRING;
+ }
+
+ @Override
+ public String getClosingDelimiter() {
+ return DELIMITER_STRING;
+ }
+
+ @Override
+ public String toString() {
+ return "IconNode{" +
+ "name='" + name + '\'' +
+ ", color='" + color + '\'' +
+ ", size='" + size + '\'' +
+ '}';
+ }
+}
diff --git a/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconProcessor.java b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconProcessor.java
new file mode 100644
index 00000000..500726e0
--- /dev/null
+++ b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconProcessor.java
@@ -0,0 +1,160 @@
+package ru.noties.markwon.sample.extension;
+
+import android.support.annotation.NonNull;
+import android.text.TextUtils;
+
+import org.commonmark.node.Node;
+import org.commonmark.node.Text;
+import org.commonmark.parser.delimiter.DelimiterProcessor;
+import org.commonmark.parser.delimiter.DelimiterRun;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+@SuppressWarnings("WeakerAccess")
+public class IconProcessor implements DelimiterProcessor {
+
+ @NonNull
+ public static IconProcessor create() {
+ return new IconProcessor();
+ }
+
+ // ic-home-black-24
+ private static final Pattern PATTERN = Pattern.compile("ic-(\\w+)-(\\w+)-(\\d+)");
+
+ private static final String TO_FIND = IconNode.DELIMITER_STRING + "ic-";
+
+ /**
+ * Should be used when input string does not wrap icon definition with `@` from both ends.
+ * So, `@ic-home-white-24` would become `@ic-home-white-24@`. This way parsing is easier
+ * and more predictable (cannot specify multiple ending delimiters, as we would require them:
+ * space, newline, end of a document, and a lot of more)
+ *
+ * @param input to process
+ * @return processed string
+ * @see #prepare(StringBuilder)
+ */
+ @NonNull
+ public static String prepare(@NonNull String input) {
+ final StringBuilder builder = new StringBuilder(input);
+ prepare(builder);
+ return builder.toString();
+ }
+
+ public static void prepare(@NonNull StringBuilder builder) {
+
+ int start = builder.indexOf(TO_FIND);
+ int end;
+
+ while (start > -1) {
+
+ end = iconDefinitionEnd(start + TO_FIND.length(), builder);
+
+ // if we match our pattern, append `@` else ignore
+ if (iconDefinitionValid(builder.subSequence(start + 1, end))) {
+ builder.insert(end, '@');
+ }
+
+ // move to next
+ start = builder.indexOf(TO_FIND, end);
+ }
+ }
+
+ @Override
+ public char getOpeningCharacter() {
+ return IconNode.DELIMITER;
+ }
+
+ @Override
+ public char getClosingCharacter() {
+ return IconNode.DELIMITER;
+ }
+
+ @Override
+ public int getMinLength() {
+ return 1;
+ }
+
+ @Override
+ public int getDelimiterUse(DelimiterRun opener, DelimiterRun closer) {
+ return opener.length() >= 1 && closer.length() >= 1 ? 1 : 0;
+ }
+
+ @Override
+ public void process(Text opener, Text closer, int delimiterUse) {
+
+ final IconGroupNode iconGroupNode = new IconGroupNode();
+
+ final Node next = opener.getNext();
+
+ boolean handled = false;
+
+ // process only if we have exactly one Text node
+ if (next instanceof Text && next.getNext() == closer) {
+
+ final String text = ((Text) next).getLiteral();
+
+ if (!TextUtils.isEmpty(text)) {
+
+ // attempt to match
+ final Matcher matcher = PATTERN.matcher(text);
+ if (matcher.matches()) {
+ final IconNode iconNode = new IconNode(
+ matcher.group(1),
+ matcher.group(2),
+ matcher.group(3)
+ );
+ iconGroupNode.appendChild(iconNode);
+ next.unlink();
+ handled = true;
+ }
+ }
+ }
+
+ if (!handled) {
+
+ // restore delimiters if we didn't match
+
+ iconGroupNode.appendChild(new Text(IconNode.DELIMITER_STRING));
+
+ Node node;
+ for (Node tmp = opener.getNext(); tmp != null && tmp != closer; tmp = node) {
+ node = tmp.getNext();
+ // append a child anyway
+ iconGroupNode.appendChild(tmp);
+ }
+
+ iconGroupNode.appendChild(new Text(IconNode.DELIMITER_STRING));
+ }
+
+ opener.insertBefore(iconGroupNode);
+ }
+
+ private static int iconDefinitionEnd(int index, @NonNull StringBuilder builder) {
+
+ // all spaces, new lines, non-words or digits,
+
+ char c;
+
+ int end = -1;
+ for (int i = index; i < builder.length(); i++) {
+ c = builder.charAt(i);
+ if (Character.isWhitespace(c)
+ || !(Character.isLetterOrDigit(c) || c == '-' || c == '_')) {
+ end = i;
+ break;
+ }
+ }
+
+ if (end == -1) {
+ end = builder.length();
+ }
+
+ return end;
+ }
+
+ private static boolean iconDefinitionValid(@NonNull CharSequence cs) {
+ final Matcher matcher = PATTERN.matcher(cs);
+ return matcher.matches();
+ }
+}
diff --git a/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconSpan.java b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconSpan.java
new file mode 100644
index 00000000..690ba5b2
--- /dev/null
+++ b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconSpan.java
@@ -0,0 +1,77 @@
+package ru.noties.markwon.sample.extension;
+
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.support.annotation.IntDef;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.text.style.ReplacementSpan;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+@SuppressWarnings("WeakerAccess")
+public class IconSpan extends ReplacementSpan {
+
+ @IntDef({ALIGN_BOTTOM, ALIGN_BASELINE, ALIGN_CENTER})
+ @Retention(RetentionPolicy.CLASS)
+ @interface Alignment {
+ }
+
+ public static final int ALIGN_BOTTOM = 0;
+ public static final int ALIGN_BASELINE = 1;
+ public static final int ALIGN_CENTER = 2; // will only center if drawable height is less than text line height
+
+
+ private final Drawable drawable;
+
+ private final int alignment;
+
+ public IconSpan(@NonNull Drawable drawable, @Alignment int alignment) {
+ this.drawable = drawable;
+ this.alignment = alignment;
+ if (drawable.getBounds().isEmpty()) {
+ drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
+ }
+ }
+
+ @Override
+ public int getSize(@NonNull Paint paint, CharSequence text, int start, int end, @Nullable Paint.FontMetricsInt fm) {
+
+ final Rect rect = drawable.getBounds();
+
+ if (fm != null) {
+ fm.ascent = -rect.bottom;
+ fm.descent = 0;
+
+ fm.top = fm.ascent;
+ fm.bottom = 0;
+ }
+
+ return rect.right;
+ }
+
+ @Override
+ public void draw(@NonNull Canvas canvas, CharSequence text, int start, int end, float x, int top, int y, int bottom, @NonNull Paint paint) {
+
+ final int b = bottom - drawable.getBounds().bottom;
+
+ final int save = canvas.save();
+ try {
+ final int translationY;
+ if (ALIGN_CENTER == alignment) {
+ translationY = b - ((bottom - top - drawable.getBounds().height()) / 2);
+ } else if (ALIGN_BASELINE == alignment) {
+ translationY = b - paint.getFontMetricsInt().descent;
+ } else {
+ translationY = b;
+ }
+ canvas.translate(x, translationY);
+ drawable.draw(canvas);
+ } finally {
+ canvas.restoreToCount(save);
+ }
+ }
+}
diff --git a/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconSpanProvider.java b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconSpanProvider.java
new file mode 100644
index 00000000..cd6e3bf3
--- /dev/null
+++ b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconSpanProvider.java
@@ -0,0 +1,67 @@
+package ru.noties.markwon.sample.extension;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.support.annotation.DrawableRes;
+import android.support.annotation.NonNull;
+
+@SuppressWarnings("WeakerAccess")
+public abstract class IconSpanProvider {
+
+ @SuppressWarnings("SameParameterValue")
+ @NonNull
+ public static IconSpanProvider create(@NonNull Context context, @DrawableRes int fallBack) {
+ return new Impl(context, fallBack);
+ }
+
+
+ @NonNull
+ public abstract IconSpan provide(@NonNull String name, @NonNull String color, @NonNull String size);
+
+
+ private static class Impl extends IconSpanProvider {
+
+ private static final boolean IS_L = Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
+
+ private final Context context;
+ private final Resources resources;
+ private final int fallBack;
+
+ Impl(@NonNull Context context, @DrawableRes int fallBack) {
+ this.context = context;
+ this.resources = context.getResources();
+ this.fallBack = fallBack;
+ }
+
+ @NonNull
+ @Override
+ public IconSpan provide(@NonNull String name, @NonNull String color, @NonNull String size) {
+ final String resName = iconName(name, color, size);
+ int resId = resources.getIdentifier(resName, "drawable", context.getPackageName());
+ if (resId == 0) {
+ resId = fallBack;
+ }
+ return new IconSpan(getDrawable(resId), IconSpan.ALIGN_CENTER);
+ }
+
+
+ @NonNull
+ private static String iconName(@NonNull String name, @NonNull String color, @NonNull String size) {
+ return "ic_" + name + "_" + color + "_" + size + "dp";
+ }
+
+ @NonNull
+ private Drawable getDrawable(int resId) {
+ final Drawable drawable;
+ if (IS_L) {
+ drawable = context.getDrawable(resId);
+ } else {
+ drawable = resources.getDrawable(resId);
+ }
+ //noinspection ConstantConditions
+ return drawable;
+ }
+ }
+}
diff --git a/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconVisitor.java b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconVisitor.java
new file mode 100644
index 00000000..d373ff75
--- /dev/null
+++ b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/IconVisitor.java
@@ -0,0 +1,63 @@
+package ru.noties.markwon.sample.extension;
+
+import android.support.annotation.NonNull;
+import android.text.TextUtils;
+import android.widget.TextView;
+
+import org.commonmark.node.CustomNode;
+
+import ru.noties.markwon.SpannableBuilder;
+import ru.noties.markwon.SpannableConfiguration;
+import ru.noties.markwon.renderer.SpannableMarkdownVisitor;
+
+@SuppressWarnings("WeakerAccess")
+public class IconVisitor extends SpannableMarkdownVisitor {
+
+ private final SpannableBuilder builder;
+
+ private final IconSpanProvider iconSpanProvider;
+
+ public IconVisitor(
+ @NonNull SpannableConfiguration configuration,
+ @NonNull SpannableBuilder builder,
+ @NonNull IconSpanProvider iconSpanProvider
+ ) {
+ super(configuration, builder);
+ this.builder = builder;
+ this.iconSpanProvider = iconSpanProvider;
+ }
+
+ @Override
+ public void visit(CustomNode customNode) {
+ if (!visitIconNode(customNode)) {
+ super.visit(customNode);
+ }
+ }
+
+ private boolean visitIconNode(@NonNull CustomNode customNode) {
+
+ if (customNode instanceof IconNode) {
+
+ final IconNode node = (IconNode) customNode;
+
+ final String name = node.name();
+ final String color = node.color();
+ final String size = node.size();
+
+ if (!TextUtils.isEmpty(name)
+ && !TextUtils.isEmpty(color)
+ && !TextUtils.isEmpty(size)) {
+
+ final int length = builder.length();
+
+ builder.append(name);
+ builder.setSpan(iconSpanProvider.provide(name, color, size), length);
+ builder.append(' ');
+
+ return true;
+ }
+ }
+
+ return false;
+ }
+}
diff --git a/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/MainActivity.java b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/MainActivity.java
new file mode 100644
index 00000000..a81f8eb0
--- /dev/null
+++ b/sample-custom-extension/src/main/java/ru/noties/markwon/sample/extension/MainActivity.java
@@ -0,0 +1,66 @@
+package ru.noties.markwon.sample.extension;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.widget.TextView;
+
+import org.commonmark.ext.gfm.strikethrough.StrikethroughExtension;
+import org.commonmark.ext.gfm.tables.TablesExtension;
+import org.commonmark.node.Node;
+import org.commonmark.parser.Parser;
+
+import java.util.Arrays;
+
+import ru.noties.markwon.SpannableBuilder;
+import ru.noties.markwon.SpannableConfiguration;
+import ru.noties.markwon.tasklist.TaskListExtension;
+
+public class MainActivity extends Activity {
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+
+ setContentView(R.layout.activity_main);
+
+ final TextView textView = findViewById(R.id.text_view);
+
+ // obtain an instance of parser
+ final Parser parser = new Parser.Builder()
+ // we will register all known to Markwon extensions
+ .extensions(Arrays.asList(
+ StrikethroughExtension.create(),
+ TablesExtension.create(),
+ TaskListExtension.create()
+ ))
+ // this is the handler for custom icons
+ .customDelimiterProcessor(IconProcessor.create())
+ .build();
+
+ // we process input to wrap icon definitions with `@` on both ends
+ // if your input already does it, there is not need for `IconProcessor.prepare()` call.
+ final String markdown = IconProcessor.prepare(getString(R.string.input));
+
+ final Node node = parser.parse(markdown);
+
+ final SpannableBuilder builder = new SpannableBuilder();
+
+ // please note that here I am passing `0` as fallback it means that if markdown references
+ // unknown icon, it will try to load fallback one and will fail with ResourceNotFound. It's
+ // better to provide a valid fallback option
+ final IconSpanProvider spanProvider = IconSpanProvider.create(this, 0);
+
+ // create an instance of visitor to process parsed markdown
+ final IconVisitor visitor = new IconVisitor(
+ SpannableConfiguration.create(this),
+ builder,
+ spanProvider
+ );
+
+ // trigger visit
+ node.accept(visitor);
+
+ // apply
+ textView.setText(builder.text());
+ }
+}
diff --git a/sample-custom-extension/src/main/res/drawable-v24/ic_launcher_foreground.xml b/sample-custom-extension/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 00000000..c7bd21db
--- /dev/null
+++ b/sample-custom-extension/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:aapt="http://schemas.android.com/aapt"
+ android:width="108dp"
+ android:height="108dp"
+ android:viewportHeight="108"
+ android:viewportWidth="108">
+ <path
+ android:fillType="evenOdd"
+ android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+ android:strokeColor="#00000000"
+ android:strokeWidth="1">
+ <aapt:attr name="android:fillColor">
+ <gradient
+ android:endX="78.5885"
+ android:endY="90.9159"
+ android:startX="48.7653"
+ android:startY="61.0927"
+ android:type="linear">
+ <item
+ android:color="#44000000"
+ android:offset="0.0" />
+ <item
+ android:color="#00000000"
+ android:offset="1.0" />
+ </gradient>
+ </aapt:attr>
+ </path>
+ <path
+ android:fillColor="#FFFFFF"
+ android:fillType="nonZero"
+ android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+ android:strokeColor="#00000000"
+ android:strokeWidth="1" />
+</vector>
diff --git a/sample-custom-extension/src/main/res/drawable/ic_android_black_24dp.xml b/sample-custom-extension/src/main/res/drawable/ic_android_black_24dp.xml
new file mode 100644
index 00000000..401cbf63
--- /dev/null
+++ b/sample-custom-extension/src/main/res/drawable/ic_android_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:viewportWidth="24.0"
+ android:viewportHeight="24.0">
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M6,18c0,0.55 0.45,1 1,1h1v3.5c0,0.83 0.67,1.5 1.5,1.5s1.5,-0.67 1.5,-1.5L11,19h2v3.5c0,0.83 0.67,1.5 1.5,1.5s1.5,-0.67 1.5,-1.5L16,19h1c0.55,0 1,-0.45 1,-1L18,8L6,8v10zM3.5,8C2.67,8 2,8.67 2,9.5v7c0,0.83 0.67,1.5 1.5,1.5S5,17.33 5,16.5v-7C5,8.67 4.33,8 3.5,8zM20.5,8c-0.83,0 -1.5,0.67 -1.5,1.5v7c0,0.83 0.67,1.5 1.5,1.5s1.5,-0.67 1.5,-1.5v-7c0,-0.83 -0.67,-1.5 -1.5,-1.5zM15.53,2.16l1.3,-1.3c0.2,-0.2 0.2,-0.51 0,-0.71 -0.2,-0.2 -0.51,-0.2 -0.71,0l-1.48,1.48C13.85,1.23 12.95,1 12,1c-0.96,0 -1.86,0.23 -2.66,0.63L7.85,0.15c-0.2,-0.2 -0.51,-0.2 -0.71,0 -0.2,0.2 -0.2,0.51 0,0.71l1.31,1.31C6.97,3.26 6,5.01 6,7h12c0,-1.99 -0.97,-3.75 -2.47,-4.84zM10,5L9,5L9,4h1v1zM15,5h-1L14,4h1v1z"/>
+</vector>
diff --git a/sample-custom-extension/src/main/res/drawable/ic_home_black_36dp.xml b/sample-custom-extension/src/main/res/drawable/ic_home_black_36dp.xml
new file mode 100644
index 00000000..c3b7e150
--- /dev/null
+++ b/sample-custom-extension/src/main/res/drawable/ic_home_black_36dp.xml
@@ -0,0 +1,4 @@
+<vector android:height="36dp" android:viewportHeight="24.0"
+ android:viewportWidth="24.0" android:width="36dp" xmlns:android="http://schemas.android.com/apk/res/android">
+ <path android:fillColor="#FF000000" android:pathData="M10,20v-6h4v6h5v-8h3L12,3 2,12h3v8z"/>
+</vector>
diff --git a/sample-custom-extension/src/main/res/drawable/ic_launcher_background.xml b/sample-custom-extension/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 00000000..d5fccc53
--- /dev/null
+++ b/sample-custom-extension/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="108dp"
+ android:height="108dp"
+ android:viewportHeight="108"
+ android:viewportWidth="108">
+ <path
+ android:fillColor="#26A69A"
+ android:pathData="M0,0h108v108h-108z" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M9,0L9,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,0L19,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M29,0L29,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M39,0L39,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M49,0L49,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M59,0L59,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M69,0L69,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M79,0L79,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M89,0L89,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M99,0L99,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,9L108,9"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,19L108,19"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,29L108,29"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,39L108,39"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,49L108,49"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,59L108,59"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,69L108,69"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,79L108,79"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,89L108,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,99L108,99"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,29L89,29"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,39L89,39"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,49L89,49"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,59L89,59"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,69L89,69"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,79L89,79"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M29,19L29,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M39,19L39,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M49,19L49,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M59,19L59,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M69,19L69,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M79,19L79,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+</vector>
diff --git a/sample-custom-extension/src/main/res/drawable/ic_memory_black_48dp.xml b/sample-custom-extension/src/main/res/drawable/ic_memory_black_48dp.xml
new file mode 100644
index 00000000..88ac2954
--- /dev/null
+++ b/sample-custom-extension/src/main/res/drawable/ic_memory_black_48dp.xml
@@ -0,0 +1,4 @@
+<vector android:height="48dp" android:viewportHeight="24.0"
+ android:viewportWidth="24.0" android:width="48dp" xmlns:android="http://schemas.android.com/apk/res/android">
+ <path android:fillColor="#FF000000" android:pathData="M15,9L9,9v6h6L15,9zM13,13h-2v-2h2v2zM21,11L21,9h-2L19,7c0,-1.1 -0.9,-2 -2,-2h-2L15,3h-2v2h-2L11,3L9,3v2L7,5c-1.1,0 -2,0.9 -2,2v2L3,9v2h2v2L3,13v2h2v2c0,1.1 0.9,2 2,2h2v2h2v-2h2v2h2v-2h2c1.1,0 2,-0.9 2,-2v-2h2v-2h-2v-2h2zM17,17L7,17L7,7h10v10z"/>
+</vector>
diff --git a/sample-custom-extension/src/main/res/drawable/ic_sentiment_satisfied_red_64dp.xml b/sample-custom-extension/src/main/res/drawable/ic_sentiment_satisfied_red_64dp.xml
new file mode 100644
index 00000000..f9c60705
--- /dev/null
+++ b/sample-custom-extension/src/main/res/drawable/ic_sentiment_satisfied_red_64dp.xml
@@ -0,0 +1,6 @@
+<vector android:height="64dp" android:viewportHeight="24.0"
+ android:viewportWidth="24.0" android:width="64dp" xmlns:android="http://schemas.android.com/apk/res/android">
+ <path android:fillColor="#FFFF0000" android:pathData="M15.5,9.5m-1.5,0a1.5,1.5 0,1 1,3 0a1.5,1.5 0,1 1,-3 0"/>
+ <path android:fillColor="#FFFF0000" android:pathData="M8.5,9.5m-1.5,0a1.5,1.5 0,1 1,3 0a1.5,1.5 0,1 1,-3 0"/>
+ <path android:fillColor="#FFFF0000" android:pathData="M11.99,2C6.47,2 2,6.48 2,12s4.47,10 9.99,10C17.52,22 22,17.52 22,12S17.52,2 11.99,2zM12,20c-4.42,0 -8,-3.58 -8,-8s3.58,-8 8,-8 8,3.58 8,8 -3.58,8 -8,8zM12,16c-1.48,0 -2.75,-0.81 -3.45,-2L6.88,14c0.8,2.05 2.79,3.5 5.12,3.5s4.32,-1.45 5.12,-3.5h-1.67c-0.7,1.19 -1.97,2 -3.45,2z"/>
+</vector>
diff --git a/sample-custom-extension/src/main/res/layout/activity_main.xml b/sample-custom-extension/src/main/res/layout/activity_main.xml
new file mode 100644
index 00000000..439dac71
--- /dev/null
+++ b/sample-custom-extension/src/main/res/layout/activity_main.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent">
+
+ <TextView
+ android:id="@+id/text_view"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:padding="8dip"
+ android:textAppearance="?android:attr/textAppearanceMedium"
+ tools:text="@string/input"/>
+
+</ScrollView>
\ No newline at end of file
diff --git a/sample-custom-extension/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/sample-custom-extension/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 00000000..eca70cfe
--- /dev/null
+++ b/sample-custom-extension/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@drawable/ic_launcher_background" />
+ <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/sample-custom-extension/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/sample-custom-extension/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 00000000..eca70cfe
--- /dev/null
+++ b/sample-custom-extension/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@drawable/ic_launcher_background" />
+ <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/sample-custom-extension/src/main/res/mipmap-hdpi/ic_launcher.png b/sample-custom-extension/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 00000000..a2f59082
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-hdpi/ic_launcher_round.png b/sample-custom-extension/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 00000000..1b523998
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-hdpi/ic_launcher_round.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-mdpi/ic_launcher.png b/sample-custom-extension/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 00000000..ff10afd6
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-mdpi/ic_launcher_round.png b/sample-custom-extension/src/main/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 00000000..115a4c76
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-mdpi/ic_launcher_round.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-xhdpi/ic_launcher.png b/sample-custom-extension/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 00000000..dcd3cd80
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/sample-custom-extension/src/main/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 00000000..459ca609
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-xhdpi/ic_launcher_round.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-xxhdpi/ic_launcher.png b/sample-custom-extension/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 00000000..8ca12fe0
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/sample-custom-extension/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 00000000..8e19b410
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-xxhdpi/ic_launcher_round.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/sample-custom-extension/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 00000000..b824ebdd
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/sample-custom-extension/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/sample-custom-extension/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 00000000..4c19a13c
Binary files /dev/null and b/sample-custom-extension/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png differ
diff --git a/sample-custom-extension/src/main/res/values/strings.xml b/sample-custom-extension/src/main/res/values/strings.xml
new file mode 100644
index 00000000..7dc177e7
--- /dev/null
+++ b/sample-custom-extension/src/main/res/values/strings.xml
@@ -0,0 +1,13 @@
+<resources>
+
+ <string name="app_name">Markwon-SampleCustomExtension</string>
+
+ <string name="input"><![CDATA[
+ # Hello! @ic-android-black-24\n\n
+ Home 36 black: @ic-home-black-36\n\n
+ Memory 48 black: @ic-memory-black-48\n\n
+ Sentiment Satisfied 64 red: @ic-sentiment_satisfied-red-64
+ ]]>
+ </string>
+
+</resources>
diff --git a/sample-custom-extension/src/main/res/values/styles.xml b/sample-custom-extension/src/main/res/values/styles.xml
new file mode 100644
index 00000000..49c8cb25
--- /dev/null
+++ b/sample-custom-extension/src/main/res/values/styles.xml
@@ -0,0 +1,5 @@
+<resources>
+
+ <style name="AppTheme" parent="android:Theme.Material.Light.DarkActionBar"/>
+
+</resources>
diff --git a/settings.gradle b/settings.gradle
index 59f2e834..fbd8c3c4 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1 +1 @@
-include ':app', ':library', ':library-image-loader', ':library-view'
+include ':app', ':library', ':library-image-loader', ':library-view', ':sample-custom-extension'