Belajar Adroid - ListView

♠ Posted by Unknown in Android at 8:37 AM

ListView

import android.app.Activity;

import android.os.Bundle;

import android.widget.ExpandableListView;

import android.content.Context;

import android.graphics.Typeface;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseExpandableListAdapter;

import android.widget.TextView;

public class GggActivity extends Activity {

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        ExpandableListView list = new ExpandableListView(this);

        list.setGroupIndicator(null);

        list.setChildIndicator(null);

        String[] titles = { "Klik ini 1","Klik ini 2","Klik ini 3"};

        String[] fruits = {"1-1","1-2"};

        String[] veggies = {"2-1","2-2","2-3"};

        String[] meats = {"3-1","3-2"};

        String[][] contents = {fruits,veggies,meats};

        SimplerExpandableListAdapter adapter = new SimplerExpandableListAdapter(this,

            titles, contents);

        list.setAdapter(adapter);

        setContentView(list);

    }

}

class SimplerExpandableListAdapter extends BaseExpandableListAdapter {

 private Context mContext;

 private String[][] mContents;

 private String[] mTitles;

 

 public SimplerExpandableListAdapter(Context context, String[] titles, String[][] contents) {

   super();

   if(titles.length != contents.length) {

     throw new IllegalArgumentException("Titles and Contents must be the same size.");

   }

   

   mContext = context;

   mContents = contents;

   mTitles = titles;

 }

 @Override

 public String getChild(int groupPosition, int childPosition) {

   return mContents[groupPosition][childPosition];

 }

 @Override

 public long getChildId(int groupPosition, int childPosition) {

   return 0;

 }

 @Override

 public View getChildView(int groupPosition, int childPosition,

     boolean isLastChild, View convertView, ViewGroup parent) {

   TextView row = (TextView)convertView;

   if(row == null) {

     row = new TextView(mContext);

   }

   row.setText(mContents[groupPosition][childPosition]);

   return row;

 }

 @Override

 public int getChildrenCount(int groupPosition) {

   return mContents[groupPosition].length;

 }

 @Override

 public String[] getGroup(int groupPosition) {

   return mContents[groupPosition];

 }

 @Override

 public int getGroupCount() {

   return mContents.length;

 }

 @Override

 public long getGroupId(int groupPosition) {

   return 0;

 }

 @Override

 public View getGroupView(int groupPosition, boolean isExpanded,

     View convertView, ViewGroup parent) {

   TextView row = (TextView)convertView;

   if(row == null) {

     row = new TextView(mContext);

   }

   row.setTypeface(Typeface.DEFAULT_BOLD);

   row.setText(mTitles[groupPosition]);

   return row;

 }

 @Override

 public boolean hasStableIds() {

   return false;

 }

 @Override

 public boolean isChildSelectable(int groupPosition, int childPosition) {

   return true;

 }

}

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