android 自定义树形图,Android 树形结构（AndroidTreeView）

image.png

Features

N - level expandable/collapsable tree

Custom values, views, styles for nodes

Save state after rotation

Selection mode for nodes

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

[图片上传失败...(image-b1b41d-1511419576958)]

[图片上传失败...(image-66a957-1511419576958)]

image

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.

TreeNode root = TreeNode.root();

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

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

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:

public class MyHolder extends TreeNode.BaseNodeViewHolder {

...

@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

IconTreeItem nodeItem = new IconTreeItem();

TreeNode child1 = new TreeNode(nodeItem).setViewHolder(new MyHolder(mContext));

6) Consider using

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!