AndroidTreeView

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 [](https://android-arsenal.com/details/1/1534) ### Demo [](https://play.google.com/store/apps/details?id=com.unnamed.b.atv.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 <br> <br> <img width='300' hspace='20' align='left' src='https://lh4.ggpht.com/xzkb3N58LH2Tsb_gGs0u3_x81VOLwlhcp-f4pz_sR_iR3vAKXfJoAcwBjN74LvzpVLE=h900-rw' /> <img width='300' hspace='20' src='https://lh5.ggpht.com/Ut6By_iUnkNfzIbaPBsc8hBeQeFj_2UXJh_1tfwDdlTAqGkhiR72A_AwQ0L0GH3OFag=h900-rw' /> <img width='300' hspace='20' src='https://www.dropbox.com/s/nc6q4jubaau0x5m/Screenshot_2015-02-15-23-16-56.png?dl=1' /> <img width='300' hspace='20' src='https://drive.google.com/uc?id=0B3hs6EXn55WUNzJmelk3cmRzcEE' /> ### 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. ```java TreeNode root = TreeNode.root(); ``` Create and add your nodes (use your custom object as constructor param) ```java TreeNode parent = new TreeNode("MyParentNode"); TreeNode child0 = new TreeNode("ChildNode0"); TreeNode child1 = new TreeNode("ChildNode1"); parent.addChildren(child0, child1); root.addChild(parent); ``` **3)** Add tree view to layout ```java AndroidTreeView tView = new AndroidTreeView(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: ```java public class MyHolder extends TreeNode.BaseNodeViewHolder<IconTreeItem> { ... @Override public View createNodeView(TreeNode node, IconTreeItem value) { final LayoutInflater inflater = LayoutInflater.from(context); final View view = inflater.inflate(R.layout.layout_profile_node, null, false); TextView tvValue = (TextView) view.findViewById(R.id.node_value); tvValue.setText(value.text); return view; } ... public static class IconTreeItem { public int icon; public String text; } } ``` **5)** Connect view holder with node ```java IconTreeItem nodeItem = new IconTreeItem(); TreeNode child1 = new TreeNode(nodeItem).setViewHolder(new MyHolder(mContext)); ``` **6)** Consider using ```java TreeNode.setClickListener(TreeNodeClickListener listener); AndroidTreeView.setDefaultViewHolder AndroidTreeView.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](https://play.google.com/store/apps/details?id=com.commandapps.bluedot)