diff --git a/app/src/main/java/com/unnamed/b/atv/sample/activity/MainActivity.java b/app/src/main/java/com/unnamed/b/atv/sample/activity/MainActivity.java
index f74bea2..0ad2862 100644
--- a/app/src/main/java/com/unnamed/b/atv/sample/activity/MainActivity.java
+++ b/app/src/main/java/com/unnamed/b/atv/sample/activity/MainActivity.java
@@ -13,6 +13,8 @@
 import com.unnamed.b.atv.sample.fragment.CustomViewHolderFragment;
 import com.unnamed.b.atv.sample.fragment.FolderStructureFragment;
 import com.unnamed.b.atv.sample.fragment.SelectableTreeFragment;
+import com.unnamed.b.atv.sample.fragment.ShootFragment;
+import com.unnamed.b.atv.sample.fragment.ShootHistoryFragment;
 import com.unnamed.b.atv.sample.fragment.TwoDScrollingArrowExpandFragment;
 import com.unnamed.b.atv.sample.fragment.TwoDScrollingFragment;
 
@@ -36,6 +38,8 @@ protected void onCreate(Bundle savedInstanceState) {
         listItems.put("Selectable Nodes", SelectableTreeFragment.class);
         listItems.put("2d scrolling", TwoDScrollingFragment.class);
         listItems.put("Expand with arrow only", TwoDScrollingArrowExpandFragment.class);
+        listItems.put("当前任务", ShootFragment.class);
+        listItems.put("历史任务", ShootHistoryFragment.class);
 
 
         final List<String> list = new ArrayList(listItems.keySet());
diff --git a/app/src/main/java/com/unnamed/b/atv/sample/fragment/ShootFragment.java b/app/src/main/java/com/unnamed/b/atv/sample/fragment/ShootFragment.java
new file mode 100644
index 0000000..8eb6d27
--- /dev/null
+++ b/app/src/main/java/com/unnamed/b/atv/sample/fragment/ShootFragment.java
@@ -0,0 +1,136 @@
+package com.unnamed.b.atv.sample.fragment;
+
+import android.app.Fragment;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Toast;
+
+import com.unnamed.b.atv.model.TreeNode;
+import com.unnamed.b.atv.sample.R;
+import com.unnamed.b.atv.sample.holder.TreeItemHolder;
+import com.unnamed.b.atv.view.AndroidTreeView;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * @author wxmgcs@gmail.com
+ * @create 2020-04-28 下午9:33
+ */
+public class ShootFragment extends Fragment {
+    private AndroidTreeView tView;
+    static SimpleDateFormat nowFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
+    public static String now() {
+        Date now = new Date();
+        return nowFormat.format(now);
+    }
+
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+
+        View rootView = inflater.inflate(R.layout.fragment_shoot, null, false);
+        ViewGroup containerView = (ViewGroup) rootView.findViewById(R.id.container);
+
+        TreeNode root = TreeNode.root();
+        TreeNode scene1Node = new TreeNode(new TreeItemHolder.TreeItem("公共区域-会议室",now()));
+
+        TreeNode image1 = new TreeNode(new TreeItemHolder.TreeItem(1,"DSC_0000.NEF",now()));
+        TreeNode image2 = new TreeNode(new TreeItemHolder.TreeItem(2,"DSC_0001.NEF",now()));
+        TreeNode image3 = new TreeNode(new TreeItemHolder.TreeItem(3,"DSC_0002.NEF",now()));
+        scene1Node.addChildren(image1);
+        scene1Node.addChildren(image2);
+        scene1Node.addChildren(image3);
+
+        TreeNode scene2Node = new TreeNode(new TreeItemHolder.TreeItem("公共区域-会议室2",now()));
+
+        TreeNode photo1 = new TreeNode(new TreeItemHolder.TreeItem(1,"DSC_0004.NEF",now()));
+        TreeNode photo2 = new TreeNode(new TreeItemHolder.TreeItem(2,"DSC_0005.NEF",now()));
+        TreeNode photo3 = new TreeNode(new TreeItemHolder.TreeItem(3,"DSC_0006.NEF",now()));
+
+        scene2Node.addChildren(photo1, photo2, photo3);
+
+        root.addChildren(scene1Node);
+        root.addChildren(scene2Node);
+
+        tView = new AndroidTreeView(getActivity(), root);
+        tView.setDefaultAnimation(false);
+        tView.setDefaultContainerStyle(R.style.TreeNodeStyleCustom);
+        tView.setDefaultViewHolder(TreeItemHolder.class);
+        tView.setDefaultNodeClickListener(nodeClickListener);
+        tView.setDefaultNodeLongClickListener(nodeLongClickListener);
+
+        containerView.addView(tView.getView());
+
+        if (savedInstanceState != null) {
+            String state = savedInstanceState.getString("tState");
+            if (!TextUtils.isEmpty(state)) {
+                tView.restoreState(state);
+            }
+        }
+
+        return rootView;
+    }
+
+
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        inflater.inflate(R.menu.menu, menu);
+        super.onCreateOptionsMenu(menu, inflater);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.expandAll:
+                tView.expandAll();
+                break;
+
+            case R.id.collapseAll:
+                tView.collapseAll();
+                break;
+        }
+        return true;
+    }
+
+    private TreeNode.TreeNodeClickListener nodeClickListener = new TreeNode.TreeNodeClickListener() {
+        @Override
+        public void onClick(TreeNode node, Object value) {
+            TreeItemHolder.TreeItem item = (TreeItemHolder.TreeItem) value;
+            if(item.id != 0){
+                Toast.makeText(getActivity(),"点击了:"+item.text,Toast.LENGTH_SHORT).show();
+            }
+
+        }
+    };
+
+    private TreeNode.TreeNodeLongClickListener nodeLongClickListener =
+            new TreeNode.TreeNodeLongClickListener() {
+                @Override
+                public boolean onLongClick(TreeNode node, Object value) {
+                    TreeItemHolder.TreeItem item = (TreeItemHolder.TreeItem) value;
+                    Toast.makeText(getActivity(), "Long click: " + item.text, Toast.LENGTH_SHORT).show();
+                    return true;
+                }
+            };
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putString("tState", tView.getSaveState());
+    }
+}
diff --git a/app/src/main/java/com/unnamed/b/atv/sample/fragment/ShootHistoryFragment.java b/app/src/main/java/com/unnamed/b/atv/sample/fragment/ShootHistoryFragment.java
new file mode 100644
index 0000000..4e0ee20
--- /dev/null
+++ b/app/src/main/java/com/unnamed/b/atv/sample/fragment/ShootHistoryFragment.java
@@ -0,0 +1,139 @@
+package com.unnamed.b.atv.sample.fragment;
+
+import android.app.Fragment;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.unnamed.b.atv.model.TreeNode;
+import com.unnamed.b.atv.sample.R;
+import com.unnamed.b.atv.sample.holder.SelectableItemHolder;
+import com.unnamed.b.atv.sample.holder.TreeItemHolder;
+import com.unnamed.b.atv.view.AndroidTreeView;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * 历史任务
+ * @author wxmgcs@gmail.com
+ * @create 2020-04-28 下午9:34
+ */
+public class ShootHistoryFragment extends Fragment {
+    private TextView statusBar;
+    private AndroidTreeView tView;
+    static SimpleDateFormat nowFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+
+
+    public static String now() {
+        Date now = new Date();
+        return nowFormat.format(now);
+    }
+
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+
+        View rootView = inflater.inflate(R.layout.fragment_default, null, false);
+        ViewGroup containerView = (ViewGroup) rootView.findViewById(R.id.container);
+
+        statusBar = (TextView) rootView.findViewById(R.id.status_bar);
+
+        TreeNode root = TreeNode.root();
+        TreeNode computerRoot = new TreeNode(new TreeItemHolder.TreeItem("任务名","时间"));
+
+        TreeNode myDocuments = new TreeNode(new TreeItemHolder.TreeItem("地点-场景-时间","时间"));
+        TreeNode file1 = new TreeNode(new TreeItemHolder.TreeItem(1,"Folder 1","1"));
+        TreeNode file2 = new TreeNode(new TreeItemHolder.TreeItem(2, "Folder 2",now()));
+        TreeNode file3 = new TreeNode(new TreeItemHolder.TreeItem(3, "Folder 3",now()));
+        TreeNode file4 = new TreeNode(new TreeItemHolder.TreeItem(4, "Folder 4",now()));
+        myDocuments.addChildren(file1, file2, file3, file4);
+
+        TreeNode myMedia = new TreeNode(new TreeItemHolder.TreeItem("地点-场景-时间",now()));
+        TreeNode file11 = new TreeNode("File1").setViewHolder(new SelectableItemHolder(getActivity()));
+        TreeNode file21 = new TreeNode("File2").setViewHolder(new SelectableItemHolder(getActivity()));
+        TreeNode file31 = new TreeNode("File3").setViewHolder(new SelectableItemHolder(getActivity()));
+        myMedia.addChildren(file11, file21, file31);
+
+
+        computerRoot.addChildren(myDocuments, myMedia);
+
+        root.addChildren(computerRoot);
+
+        tView = new AndroidTreeView(getActivity(), root);
+        tView.setDefaultAnimation(true);
+        tView.setDefaultContainerStyle(R.style.TreeNodeStyleCustom);
+        tView.setDefaultViewHolder(TreeItemHolder.class);
+        tView.setDefaultNodeClickListener(nodeClickListener);
+        tView.setDefaultNodeLongClickListener(nodeLongClickListener);
+
+        containerView.addView(tView.getView());
+
+        if (savedInstanceState != null) {
+            String state = savedInstanceState.getString("tState");
+            if (!TextUtils.isEmpty(state)) {
+                tView.restoreState(state);
+            }
+        }
+
+        return rootView;
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        inflater.inflate(R.menu.menu, menu);
+        super.onCreateOptionsMenu(menu, inflater);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.expandAll:
+                tView.expandAll();
+                break;
+
+            case R.id.collapseAll:
+                tView.collapseAll();
+                break;
+        }
+        return true;
+    }
+
+    private int counter = 0;
+
+    private TreeNode.TreeNodeClickListener nodeClickListener = new TreeNode.TreeNodeClickListener() {
+        @Override
+        public void onClick(TreeNode node, Object value) {
+            TreeItemHolder.TreeItem item = (TreeItemHolder.TreeItem) value;
+            statusBar.setText("Last clicked: " + item.text);
+        }
+    };
+
+    private TreeNode.TreeNodeLongClickListener nodeLongClickListener = new TreeNode.TreeNodeLongClickListener() {
+        @Override
+        public boolean onLongClick(TreeNode node, Object value) {
+            TreeItemHolder.TreeItem item = (TreeItemHolder.TreeItem) value;
+            Toast.makeText(getActivity(), "Long click: " + item.text, Toast.LENGTH_SHORT).show();
+            return true;
+        }
+    };
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putString("tState", tView.getSaveState());
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/unnamed/b/atv/sample/holder/TreeItemHolder.java b/app/src/main/java/com/unnamed/b/atv/sample/holder/TreeItemHolder.java
new file mode 100644
index 0000000..c2bfb3d
--- /dev/null
+++ b/app/src/main/java/com/unnamed/b/atv/sample/holder/TreeItemHolder.java
@@ -0,0 +1,75 @@
+package com.unnamed.b.atv.sample.holder;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import com.github.johnkil.print.PrintView;
+import com.unnamed.b.atv.model.TreeNode;
+import com.unnamed.b.atv.sample.R;
+
+/**
+ * @author wxmgcs@gmail.com
+ * @create 2020-04-28 下午9:33
+ */
+public class TreeItemHolder extends TreeNode.BaseNodeViewHolder<TreeItemHolder.TreeItem> {
+    private TextView tvValue;
+    private PrintView arrowView;
+
+    public TreeItemHolder(Context context) {
+        super(context);
+    }
+
+    @Override
+    public View createNodeView(final TreeNode node, TreeItem value) {
+        final LayoutInflater inflater = LayoutInflater.from(context);
+        final View view = inflater.inflate(R.layout.layout_node, null, false);
+        tvValue = (TextView) view.findViewById(R.id.node_value);
+
+
+        if (node.getLevel() == 1) {
+            tvValue.setText(value.text+"("+value.timestamp+")");
+        }else{
+            tvValue.setText(String.format("%s. \t%s\t\t%s",value.id,value.text,value.timestamp));
+        }
+
+        arrowView = (PrintView) view.findViewById(R.id.arrow_icon);
+
+        view.findViewById(R.id.btn_delete).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                getTreeView().removeNode(node);
+            }
+        });
+
+
+        if (node.getLevel() != 1) {
+            view.findViewById(R.id.arrow_icon).setVisibility(View.GONE);
+        }
+
+        return view;
+    }
+
+    @Override
+    public void toggle(boolean active) {
+        arrowView.setIconText(context.getResources().getString(active ? R.string.ic_keyboard_arrow_down : R.string.ic_keyboard_arrow_right));
+    }
+
+    public static class TreeItem {
+        public int id = 0;
+        public String text;
+        public String timestamp;
+
+        public TreeItem(int id,String text,String timestamp) {
+            this.id = id;
+            this.text = text;
+            this.timestamp = timestamp;
+        }
+
+        public TreeItem(String text,String timestamp) {
+            this.text = text;
+            this.timestamp = timestamp;
+        }
+    }
+}
diff --git a/app/src/main/res/layout/fragment_shoot.xml b/app/src/main/res/layout/fragment_shoot.xml
new file mode 100644
index 0000000..216252f
--- /dev/null
+++ b/app/src/main/res/layout/fragment_shoot.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <RelativeLayout
+        android:layout_below="@id/status"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:id="@+id/container"/>
+
+
+</RelativeLayout>
diff --git a/app/src/main/res/layout/layout_node.xml b/app/src/main/res/layout/layout_node.xml
new file mode 100644
index 0000000..bb51cd8
--- /dev/null
+++ b/app/src/main/res/layout/layout_node.xml
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:minHeight="48dp"
+    android:background="?android:attr/selectableItemBackground"
+    android:layout_height="match_parent">
+
+
+    <com.github.johnkil.print.PrintView
+        android:layout_alignParentLeft="true"
+        android:id="@+id/arrow_icon"
+        android:layout_centerVertical="true"
+        android:layout_centerHorizontal="true"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:iconText="@string/ic_keyboard_arrow_right"
+        app:iconColor="#12558C"
+        app:iconFont="fonts/material-icon-font.ttf"
+        app:iconSize="20dp" />
+
+    <!--<com.github.johnkil.print.PrintView-->
+        <!--android:layout_alignWithParentIfMissing="true"-->
+        <!--android:id="@+id/icon"-->
+        <!--android:layout_toRightOf="@id/arrow_icon"-->
+        <!--android:layout_centerVertical="true"-->
+        <!--android:layout_centerHorizontal="true"-->
+        <!--android:layout_width="wrap_content"-->
+        <!--android:layout_height="wrap_content"-->
+        <!--app:iconText="@string/ic_email"-->
+        <!--app:iconColor="#12558C"-->
+        <!--app:iconFont="fonts/material-icon-font.ttf"-->
+        <!--app:iconSize="24dp" />-->
+
+    <TextView
+        android:layout_centerVertical="true"
+        android:textSize="16sp"
+        android:layout_marginLeft="10dp"
+        android:layout_toRightOf="@+id/arrow_icon"
+        android:layout_toLeftOf="@+id/buttonsContainer"
+        android:id="@+id/node_value"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
+
+    <LinearLayout
+        android:id="@+id/buttonsContainer"
+        android:layout_centerVertical="true"
+        android:layout_marginLeft="10dp"
+        android:layout_marginRight="10dp"
+        android:layout_alignParentRight="true"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content">
+
+        <!--<com.github.johnkil.print.PrintView-->
+            <!--android:id="@+id/btn_addFolder"-->
+            <!--android:layout_width="wrap_content"-->
+            <!--android:layout_height="wrap_content"-->
+            <!--android:padding="5dp"-->
+            <!--app:iconSize="20dp"-->
+            <!--app:iconColor="#99cc00"-->
+            <!--app:iconFont="fonts/material-icon-font.ttf"-->
+            <!--app:iconText="@string/ic_add" />-->
+
+
+        <com.github.johnkil.print.PrintView
+            android:padding="5dp"
+            android:id="@+id/btn_delete"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:iconSize="20dp"
+            app:iconColor="#ff4444"
+            app:iconFont="fonts/material-icon-font.ttf"
+            app:iconText="@string/ic_close" />
+    </LinearLayout>
+</RelativeLayout>
diff --git a/build.gradle b/build.gradle
index ebf706b..876a06b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,10 +2,11 @@
 
 buildscript {
     repositories {
+        maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.0.0'
+        classpath 'com.android.tools.build:gradle:3.0.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -21,6 +22,7 @@ allprojects {
     group = GROUP
 
     repositories {
+        maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}
         jcenter()
     }
 }
diff --git a/gradle.properties b/gradle.properties
index ddb8205..0eba815 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -22,9 +22,9 @@ VERSION_CODE=11
 
 
 ANDROID_BUILD_MIN_SDK_VERSION=11
-ANDROID_BUILD_TARGET_SDK_VERSION=21
-ANDROID_BUILD_SDK_VERSION=21
-ANDROID_BUILD_TOOLS_VERSION=21.1.2
+ANDROID_BUILD_TARGET_SDK_VERSION=26
+ANDROID_BUILD_SDK_VERSION=28
+ANDROID_BUILD_TOOLS_VERSION=28
 
 GROUP=com.github.bmelnychuk
 POM_DESCRIPTION=Tree View implementation for android
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 0c71e76..649480d 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/library/build.gradle b/library/build.gradle
index 92ecb9f..867a6ad 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -22,4 +22,4 @@ dependencies {
     compile 'com.android.support:appcompat-v7:21.0.3'
 }
 
-apply from: '../maven_push.gradle'
+//apply from: '../maven_push.gradle'