how to customize listview row android

Question

i have a names list and i want to change the color to the rows depending on the letter the name starts with. This is what i\'m using to show the ListView:

ma

Answer 1

    MainActivity:   

     import java.util.ArrayList;

        import android.app.Activity;
        import android.content.Intent;
        import android.content.SharedPreferences;
        import android.content.SharedPreferences.Editor;
        import android.os.Bundle;
        import android.view.View;
        import android.widget.Adapter;
        import android.widget.AdapterView;
        import android.widget.AdapterView.OnItemClickListener;
        import android.widget.ListView;

        public class ListViewImagesActivity extends Activity {
            ListView list;
            public Integer[] mgriArray = { R.drawable.angry0, R.drawable.neutral0,
                    R.drawable.fblack0, R.drawable.misc0, R.drawable.notok0,
                    R.drawable.panel011, R.drawable.pleasure0, R.drawable.rage0,
                    R.drawable.sad0, R.drawable.stupidity0, R.drawable.sa0,
                    R.drawable.tree0, R.drawable.victorious0,R.drawable.image_53,
                    R.drawable.image_13

            };
            ArrayList image_details;
            Adapter griAdapter;

            public static SharedPreferences pref;
            static Editor editor;

            @Override
            protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_main);

                 pref = getSharedPreferences("share", 0);
                  editor = pref.edit();
                list = (ListView) findViewById(R.id.listV_main);

                image_details = GetSearchResults3();
                list.setAdapter(new ItemListBaseAdapter(this, image_details, mgriArray));
                list.setOnItemClickListener(new OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView parent, View v,
                            int position, long id) {
                        Object o = list.getItemAtPosition(position);
                        ItemDetails obj_itemDetails = (ItemDetails) o;

                        String namee = obj_itemDetails.getName();
                          editor.putString("name", namee);

                            // commit changes
                            editor.commit();

                        // switch..................

                        switch (position) {
                        case 0:
                            Intent i1 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity.class);
                            startActivity(i1);
                            break;
                        case 1:
                            Intent i2 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity2.class);
                            startActivity(i2);
                            break;
                        case 2:
                            Intent i3 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity3.class);
                            startActivity(i3);
                            break;
                        case 3:
                            Intent i4 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity4.class);
                            startActivity(i4);
                            break;
                        case 4:
                            Intent i5 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity5.class);
                            startActivity(i5);
                            break;
                        case 5:
                            Intent i6 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity6.class);
                            startActivity(i6);
                            break;
                        case 6:
                            Intent i7 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity7.class);
                            startActivity(i7);
                            break;
                        case 7:
                            Intent i8 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity8.class);
                            startActivity(i8);
                            break;
                        case 8:
                            Intent i9 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity9.class);
                            startActivity(i9);
                            break;
                        case 9:
                            Intent i10 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity10.class);
                            startActivity(i10);
                            break;
                        case 10:
                            Intent i11 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity11.class);
                            startActivity(i11);
                            break;
                        case 11:
                            Intent i12 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity12.class);
                            startActivity(i12);
                            break;
                        case 12:
                            Intent i13 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity13.class);
                            startActivity(i13);
                            break;
                        case 13:
                            Intent i14 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity14.class);
                            startActivity(i14);
                            break;
                        case 14:
                            Intent i15 = new Intent(ListViewImagesActivity.this,
                                    AndroidGridLayoutActivity15.class);
                            startActivity(i15);
                            break;

                        }

                        // ending.........

                    }
                });
            }

            // ...............................

            public ArrayList GetSearchResults3() {
                // TODO Auto-generated method stub
                ArrayList results = new ArrayList();

                ItemDetails item_details = new ItemDetails();

                item_details.setName("ANGRY");
                item_details.setImageNumber(1);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("NEUTRAL");
                item_details.setImageNumber(2);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("FEMALE");
                item_details.setImageNumber(3);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("MISC");
                item_details.setImageNumber(4);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("NOTOK");
                item_details.setImageNumber(5);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("PANEL");
                item_details.setImageNumber(6);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("PLEASURE");
                item_details.setImageNumber(7);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("RAGE");
                item_details.setImageNumber(8);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("SAD");
                item_details.setImageNumber(9);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("STUPIDITY");
                item_details.setImageNumber(10);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("SURPRISED ");
                item_details.setImageNumber(11);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("TREES");
                item_details.setImageNumber(12);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("VICTORIOUS");
                item_details.setImageNumber(13);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("LUCKY BEAR");
                item_details.setImageNumber(14);
                results.add(item_details);

                item_details = new ItemDetails();
                item_details.setName("LUCKY CHARM");
                item_details.setImageNumber(15);
                results.add(item_details);

                return results;
            }
        }



    Adapter Class...

    public class ItemListBaseAdapter extends BaseAdapter {
        private static ArrayList itemDetailsrrayList;
        private Integer[] imgid;

        public static ArrayList results;

        private LayoutInflater l_Inflater;

        public ItemListBaseAdapter(Context context, ArrayList results,
                Integer[] imgid) {
            itemDetailsrrayList = results;
            l_Inflater = LayoutInflater.from(context);
            this.imgid = imgid;
        }

        public int getCount() {
            return itemDetailsrrayList.size();
        }

        public Object getItem(int position) {
            return itemDetailsrrayList.get(position);
        }

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

        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;
            ImageView imageView = null;
            if (convertView == null) {
                convertView = l_Inflater.inflate(R.layout.category, null);
                holder = new ViewHolder();
                holder.txt_itemName = (TextView) convertView.findViewById(R.id.name);
                holder.itemImage = (ImageView) convertView.findViewById(R.id.photo);

                convertView.setTag(holder);
            } else {
                holder = (ViewHolder) convertView.getTag();
            }


            holder.txt_itemName.setText(itemDetailsrrayList.get(position).getName());
            holder.itemImage.setImageResource(imgid[itemDetailsrrayList.get(
                    position).getImageNumber() - 1]);


            return convertView;
        }

        static class ViewHolder {
            TextView txt_itemName;
            ImageView itemImage;

        }
    }   

XML ListView here......





    

        

    

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