android studio treeview,唐涛/TreeView

TreeView

An android tree view with high performance and rich functions

Captures

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Select node:

Operate all:

Features

expandAll/collapseAll

expandNode/collapseNode

expandLevel/collapseLevel

toggleNode

deleteNode/addNode

selectNode/deselectNode

selectAll/deselectAll

getSelectedNodes

refreshTreeView

Usage

1.Reference the library from your module's build.gradle:

implementation 'me.texy.treeview:treeview_lib:1.0.6'

2.Implement your all level's BaseNodeViewBinder

Sample：

public class FirstLevelNodeViewBinder extends BaseNodeViewBinder {

TextView textView;

public FirstLevelNodeViewBinder(View itemView) {

super(itemView);

textView = (TextView) itemView.findViewById(R.id.node_name_view)

}

@Override

public int getLayoutId() {

return R.layout.item_first_level;

}

@Override

public void bindView(TreeNode treeNode) {

textView.setText(treeNode.getValue().toString());

}

}

SecondLevelNodeViewBinder

ThirdLevelNodeViewBinder

.

.

.

If you want add the selectable feature,replace BaseNodeViewBinder with CheckableNodeViewBinder.

3.Implement the BaseNodeViewFactory

Sample：

public class MyNodeViewFactory extends BaseNodeViewFactory {

@Override

public BaseNodeViewBinder getNodeViewBinder(View view, int level) {

switch (level) {

case 0:

return new FirstLevelNodeViewBinder(view);

case 1:

return new SecondLevelNodeViewBinder(view);

case 2:

return new ThirdLevelNodeViewBinder(view);

default:

return null;

}

}

}

If you do not want to create a class file,just implement a anonymous inner class in TreeView's constructor

4.Add TreeView to wherever you want

Sample:

TreeNode root = TreeNode.root();

//build the tree as you want

for (int i = 0; i < 5; i++) {

TreeNode treeNode = new TreeNode(new String("Child " + "No." + i));

treeNode.setLevel(0);

root.addChild(treeNode);

}

View treeView = new TreeView(root, context, new MyNodeViewFactory()).getView();

//add to view group where you want

License

Copyright 2017 shineM.

Licensed under the Apache License, Version 2.0 (the "License");

you may not use this file except in compliance with the License.

You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

limitations under the License.