CODEWITHSUNDEEP
androidlistviewimageviewhashmapsimpleadapter
Namratha
Namratha

Reputation: 16780

How to display Images in ListView android

I have been looking around for examples on how to do this. Cam across an approach that used SimpleAdapter and HashMaps here on StackOverflow. This is my code. It's not working. All I can see is an empty row of a list.

listItems = new ArrayList<HashMap<String,Object>>();

HashMap<String,Object> listData1 = new HashMap<String,Object>();
HashMap<String,Object> listData2 = new HashMap<String,Object>();

image_1 = getResources().getDrawable(R.drawable.camera_icon_focus_dim);
image_2 = getResources().getDrawable(R.drawable.camera_icon_scene_mode);

listData1.put("icon focus", image_1);
listData2.put("icon_scene", image_2);

listItems.add(listData1);
listItems.add(listData2);

SimpleAdapter listItemAdapter = new SimpleAdapter(this, listItems,
  R.layout.image_list_item, new String[]{"icon_focus"}, 
  new int[]{R.id.list_view_item1});

optionsList.setAdapter(listItemAdapter);

image_list_item.xml:

<?xml version="1.0" encoding="utf-8"?>
<ImageView   xmlns:android="http://schemas.android.com/apk/res/android"
        android:paddingTop="12dip"       
        android:layout_width="wrap_content"       
        android:layout_height="wrap_content"        
        android:id="@+id/listitem_img"
    />

list_item.xml:

<?xml version="1.0" encoding="utf-8"?>
    <TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/list_view_item1"
android:layout_width="wrap_content"
android:layout_height="0dip"
android:layout_weight="1.0"
/>

Please tell me what I'm doing wrong.

Upvotes: 0

Views: 8969

Answers (1)

chiuki
chiuki

Reputation: 14700

The field in your HashMap needs to match. Try this:

listItems = new ArrayList<HashMap<String,Integer>>();
String fieldName = "icon_id";

HashMap<String, Integer> listData1 = new HashMap<String, Integer>();
HashMap<String, Integer> listData2 = new HashMap<String, Integer>();

listData1.put(fieldName, R.drawable.camera_icon_focus_dim);
listData2.put(fieldName, R.drawable.camera_icon_scene_mode);

listItems.add(listData1);
listItems.add(listData2);

SimpleAdapter listItemAdapter = new SimpleAdapter(
    this,
    listItems,
    R.layout.image_list_item,
    new String[] { fieldName },
    new int[] { R.id.listitem_img });

Upvotes: 4

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