jmodrako / BinaryTreeView

Using BinaryTreeView you'll be able to show your data as binary tree.

BinaryTreeView

Simple three classes which let you to browse your data as binary tree. So, if you have data model as binary tree, these classes will be usefull for you.

Here is sample application APK.

Usage

To build your own tree, just copy following classes to your project:

1. UserViewWrapper
2. UserBackgroundView
3. UserForegroundView

It also require some extra attributes in attrs.xml file:

<declare-styleable name="UserViewWrapperAttrs">
  <!-- user_type describe kind of view. -->
  <attr name="user_type">
    <enum name="parent" value="1"/>
    <enum name="leftChild" value="2"/>
    <enum name="rightChild" value="3"/>
  </attr>
  <!-- open_direction describe how view can be opened through finger slide. -->
  <attr name="open_direction">
    <enum name="left" value="1"/>
    <enum name="right" value="2"/>
    <enum name="none" value="3"/>
  </attr>
  <!-- outside_move describe whether or not view can move outside of the screen. -->
  <attr name="outside_move" format="boolean"/>
  
  <!-- move_direction describe how view can be moved up/down. -->
  <attr name="move_direction">
    <enum name="up" value="1"/>
    <enum name="down" value="2"/>
    <enum name="both" value="3"/>
    <enum name="none" value="4"/>
  </attr>
</declare-styleable>

Code below describes simple usage wrapper's classes:

xmlns:binarytree="http://schemas.android.com/apk/res/your.packagename.here"

<!-- Parent view. -->
<UserViewWrapper>
  ...
  binarytree:user_type="parent"
  binarytree:open_direction="right"
  binarytree:outside_move="false"
  binarytree:move_direction="down">
  ...

  <!-- Parent background view. -->
  <UserBackgroundView>
    ...
    here you can put your own background layout
    ...
  </UserBackgroundView>
  
  <!-- Parent foreground view. -->
  <UserForegroundView>
    ...
    here you can put your own foreground layout
    ...
  </UserForegroundView>

</UserViewWrapper>

Known issues:

1. setVisibility(visible/invisible) - does't work in android 2.1.