Question

我使用此lib。我想为任何孩子添加图标。但我不知道我怎么做。请帮助我。感谢任何身体。我读取样本但是..这是我的代码。请阅读链接

public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    TreeNode root = TreeNode.root();

 final    TreeNode parent = new TreeNode("Melk");
    final TreeNode child0 = new TreeNode("Build_1");
    TreeNode child1 = new TreeNode("Build_2");

    TreeNode child_1 = new TreeNode("Aparteman_1");
    TreeNode child_3 = new TreeNode("Aparteman_2");

    TreeNode child_4 = new TreeNode("Senfi_1");
    TreeNode child_5 = new TreeNode("Senfi_2");

    child_1.addChildren(child_4, child_5);
    child0.addChildren(child_1, child_3);
    parent.addChildren(child0, child1);

    root.addChild(parent);
    Button del = (Button) findViewById(R.id.del);

 parent.setClickListener(new TreeNode.TreeNodeClickListener() {
     @Override
     public void onClick(TreeNode node, Object value) {

         Toast.makeText(getApplicationContext(),"",Toast.LENGTH_LONG).show();

     }
 });

    LinearLayout containerView = (LinearLayout) findViewById(R.id.m);
    AndroidTreeView tView = new AndroidTreeView(getApplicationContext(), root);
    containerView.addView(tView.getView());

}
}

发表编辑。我需要你的帮助。

Answer 1

你必须使用自定义适配器，因为它用于默认的android listview唯一的区别是扩展TreeNode.BaseNodeViewHolder并覆盖createNodeView 这是一个结构

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;
    }
}

有关更多信息，本教程将帮助您了解如何使用自定义适配器 https://github.com/codepath/android_guides/wiki/Using-an-ArrayAdapter-with-ListView

如何为子节点添加图标？

1 个答案: