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Belajar Adroid - ListView

♠ Posted by Unknown in 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;
 }

}

hasilnya:




1 komentar:

udah bolak balik aku baca masih tak paham-paham aku.. hhh... &%3#@*&

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