This project is deprecated. You can still use it as it. Let me know if someone is interested in supporting it.

AndroidTreeView

Recent changes

2D scrolling mode added, keep in mind this comes with few limitations: you won't be able not place views on right side like alignParentRight. Everything should be align left. Is not enabled by default

Description

Tree view implementation for android

Demo

Features

• 1. N - level expandable/collapsable tree
• 2. Custom values, views, styles for nodes
• 3. Save state after rotation
• 4. Selection mode for nodes
• 5. Dynamic add/remove node

Known Limitations

• For Android 4.0 (+/- nearest version) if you have too deep view hierarchy and with tree its easily possible, your app may crash

Integration

1) Add library as a dependency to your project

compile 'com.github.bmelnychuk:atv:1.2.+'

2) Create your tree starting from root element. TreeNode.root() element will not be displayed so it doesn't require anything to be set.

TreeNoderoot = TreeNode.root();

Create and add your nodes (use your custom object as constructor param)

TreeNodeparent = newTreeNode("MyParentNode");
TreeNodechild0 = newTreeNode("ChildNode0");
TreeNodechild1 = newTreeNode("ChildNode1");
parent.addChildren(child0, child1);
root.addChild(parent);

3) Add tree view to layout

AndroidTreeViewtView = newAndroidTreeView(getActivity(), root);
containerView.addView(tView.getView());

The simplest but not styled tree is ready. Now you can see parent node as root of your tree

4) Custom view for nodes

Extend TreeNode.BaseNodeViewHolder and overwrite createNodeView method to prepare custom view for node:

publicclassMyHolderextendsTreeNode.BaseNodeViewHolder<IconTreeItem> {
...
@OverridepublicViewcreateNodeView(TreeNodenode, IconTreeItemvalue) {
finalLayoutInflaterinflater = LayoutInflater.from(context);
finalViewview = inflater.inflate(R.layout.layout_profile_node, null, false);
TextViewtvValue = (TextView) view.findViewById(R.id.node_value);
tvValue.setText(value.text);
returnview;
}
...
publicstaticclassIconTreeItem {
publicinticon;
publicStringtext;
}
}

5) Connect view holder with node

IconTreeItemnodeItem = newIconTreeItem();
TreeNodechild1 = newTreeNode(nodeItem).setViewHolder(newMyHolder(mContext));

6) Consider using

TreeNode.setClickListener(TreeNodeClickListenerlistener);
AndroidTreeView.setDefaultViewHolderAndroidTreeView.setDefaultNodeClickListener
...

For more details use sample application as example

Let me know if i missed something, appreciate your support, thanks!

Projects using this library

Blue Dot : World Chat