Vorschläge für den Aufbau eines treeview-Steuerelement in Android

Baute ich eine treeview meiner eigenen, die unterstützt n Ebenen. Es ist einfach zu bedienen, touch-screens, vor allem auf Geräten mit größeren Bildschirm.
Habe ich eine Klasse die sich ListviewAdapter und mein eigenes erstellt listitem. die Elemente wissen, auf welcher Ebene Sie sind und Sie Erben die expandstate Ihrer Eltern (durch die Erinnerung an den eigenen Staat). Dieser Baum ist ziemlich schnell bis zu tausend Einzelteile.

Edit: den code Hinzugefügt, aber, wie ich schrieb in den Kommentar, Es wird nicht sehr hilfreich sein, weil es sehr nah an meine eigenen Bedürfnisse.

package de.supinfo.FISDroid;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.drawable.PaintDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class EfficientAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private Bitmap mIcon1;

private int active_view;
private int last_path;
public String[][] values = new String[0][];

public EfficientAdapter(Context context, String[][] str_arr_values, int int_active_view) {
    //Cache the LayoutInflate to avoid asking for a new one each time.
    mInflater = LayoutInflater.from(context);
    values = str_arr_values;
    active_view = int_active_view;
}

public Object getItem(int position) {
    return position;
}

public long getItemId(int position) {
    return position;
}

public View getView(int position, View convertView, ViewGroup parent) {

    int padding = 0;

    //int selfstate = Integer.parseInt(values[position][4].trim());

    ViewHolder holder;
    if (convertView == null) {

        convertView = mInflater.inflate(R.xml.list_item_icon_text, null);

        holder = new ViewHolder();
        holder.text = (TextView) convertView.findViewById(R.id.text_view);
        holder.icon = (ImageView) convertView.findViewById(R.id.img_view);
        holder.expanded = (ImageView) convertView.findViewById(R.id.ImageView01);
        holder.llout = (LinearLayout) convertView.findViewById(R.id.list_item_icon_text);
        holder.docs = (TextView) convertView.findViewById(R.id.doc_count);
        holder.prun = (ImageView) convertView.findViewById(R.id.prun);
        holder.coord = (ImageView) convertView.findViewById(R.id.coord);
        holder.button = (Button) convertView.findViewById(R.id.button);
        holder.button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                main.tabHost.setCurrentTab(2);
            }

        });
        convertView.setTag(holder);
    } else {

        holder = (ViewHolder) convertView.getTag();
    }

    //Bind the data efficiently with the holder.
    String text = values[position][0];

    String docs = values[position][11];
    if (!docs.equals("0")) {
        //TODO
        //Anzeige das Dokumente vorhanden sind, eventuell Anzahl
        holder.docs.setText(docs);
        holder.docs.setVisibility(View.VISIBLE);
    } else {
        holder.docs.setVisibility(View.INVISIBLE);
    }
    holder.coord.setVisibility(values[position][12].equals("") || values[position][12].equals("0") || values[position][12].equals("0.0") ? View.INVISIBLE : View.VISIBLE);
    holder.prun.setVisibility(values[position][14].equals("") ? View.INVISIBLE : View.VISIBLE);
    holder.text.setText(text);
    holder.text.setTextSize(GlobalVars.Style.TextSize);
    if (position == active_view) {
        holder.text.setTextColor(R.color.headline_font);
        PaintDrawable pd = new PaintDrawable(Color.RED);
        holder.llout.setBackgroundDrawable(pd);
        holder.text.setSingleLine(false);
        holder.button.setVisibility(values[position][1].equals("-1") ? View.GONE : View.VISIBLE);
    } else {
        holder.text.setTextColor(R.color.headline_font);

        PaintDrawable pd = new PaintDrawable(Color.TRANSPARENT);
        holder.llout.setBackgroundDrawable(pd);
        holder.text.setSingleLine(true);
        holder.button.setVisibility(View.GONE);
    }

    int i = Integer.parseInt(values[position][5].trim());
    mIcon1 = GlobalHelper.GetIcon(i);
    holder.icon.setImageBitmap(mIcon1);

    if (values[position][8].equals("-1")) {
        holder.expanded.setVisibility(View.VISIBLE);
        holder.expanded.setImageResource(android.R.drawable.ic_input_add);
    } else if (values[position][8].equals("0")) {
        holder.expanded.setVisibility(View.INVISIBLE);
    } else if (values[position][8].equals("1")) {
        holder.expanded.setVisibility(View.VISIBLE);
        if (values[position][9].equals("1")) {
            holder.expanded.setImageResource(android.R.drawable.ic_menu_revert);
        } else {
            holder.expanded.setImageResource(android.R.drawable.ic_input_add);
        }
    }
    padding = Integer.parseInt(values[position][7].trim()) * 24;
    convertView.setPadding(padding, 5, 5, 5);

    return convertView;
}

static class ViewHolder {
    LinearLayout llout;
    TextView text;
    ImageView icon;
    ImageView expanded;
    ImageView coord;
    ImageView prun;
    TextView docs;
    Button button;
}

@Override
public int getCount() {
    //TODO Auto-generated method stub
    return values.length;
}

public String[] getValues(int position) {
    return values[position];
}

public String getValue(int position) {
    return values[position][0];
}

public String getDatid(int position) {
    return values[position][1];
}

public String getPath(int position) {
    return values[position][2];
}

public String getParent(int position) {
    return values[position][3];
}

public void set_active_view() {
    active_view = GlobalVars.cn.index;
}

public int get_active_view() {
    return active_view;
}

public void set_last_path(int position) {
    last_path = position;
}

public int get_last_path() {
    return last_path;
}

}

Edit: Hinzugefügt wurde die xml -

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:id="@+id/list_item_icon_text" 
xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_height="wrap_content" 
android:layout_centerVertical="true" 
android:background="@color/tree_normal_back" 
android:padding="1dip" 
android:orientation="horizontal" 
android:layout_width="fill_parent">
<LinearLayout 
    android:id="@+id/plusminus" 
    android:layout_height="48dip" 
    android:layout_width="24dip" 
    android:gravity="right|center_vertical">
    <ImageView 
        android:id="@+id/ImageView01" 
        android:layout_height="24dip" 
        android:layout_width="24dip"/>
</LinearLayout>
<LinearLayout 
    android:id="@+id/LinearLayout01" 
    android:layout_height="48dip" 
    android:layout_width="48dip" 
    android:orientation="horizontal" 

    android:paddingLeft="4dip">
    <LinearLayout 
        android:id="@+id/LinearLayout02" 
        android:layout_height="48dip" android:orientation="vertical" android:layout_width="16dip">

        <TextView 
            android:text="0" 
            android:id="@+id/doc_count" 
            android:textColorHighlight="@color/headline_font" 
            android:layout_gravity="center_vertical" 
            android:textColor="@color/black" 
            android:textSize="12dip" 
            android:layout_margin="0dip" 
            android:padding="0dip" 
            android:paddingTop="0dip" 
            android:gravity="center_vertical|center_horizontal" 
            android:background="@drawable/ico_24_paperclip" 
            android:textStyle="normal" android:layout_height="16dip" android:layout_width="16dip">
        </TextView>
        <ImageView 
            android:id="@+id/prun" 
            android:layout_gravity="center_vertical" 
            android:layout_height="16dip" 
            android:layout_width="16dip" android:background="@drawable/ico_24_prun"/>
        <ImageView 
            android:id="@+id/coord" 
            android:layout_gravity="center_vertical" 
            android:layout_height="16dip" 
            android:layout_width="16dip"       android:background="@drawable/ico_24_coord"/>

    </LinearLayout>
    <ImageView 
            android:id="@+id/img_view" 
            android:layout_gravity="center_vertical" 
            android:layout_height="24dip" 
            android:layout_width="24dip" />

</LinearLayout>
<Button 
    android:id="@+id/button" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:background="@drawable/tabs_edit"
    android:focusable="false"
    android:visibility="gone">
</Button>
<TextView 
    android:layout_gravity="center_vertical" 
    android:padding="2dip" 
    android:marqueeRepeatLimit="2" 
    android:layout_width="wrap_content" 
    android:textSize="22dip" 
    android:textColor="@color/tree_normal_font" 
    android:id="@+id/text_view" 
    android:layout_height="wrap_content">
</TextView>  
</LinearLayout>

Können Sie diese Bibliothek verwenden: https://github.com/bmelnychuk/AndroidTreeView bekommen Sie Ihre gewünschte Baum-Ansicht. Es ist ein N-level-Baum, wo Sie die Kontrolle über jeden einzelnen Knoten im Baum.

Nutzung

1) installieren: compile 'com.github.bmelnychuk:atv:1.2.+'

2) build-tree-view:

 TreeNode root = TreeNode.root(); 
 TreeNode parent = new TreeNode("node-name");
 TreeNode child0 = new TreeNode("child-node-name-1");
 TreeNode child1 = new TreeNode("child_node-name-2");

 parent.addChildren(child0, child1);
 root.addChild(parent);