populating Listview with arrayadapter<HashMap<String, String>>

Question

I am using following code but it does not populates the listview.

  ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
    lv.setAdapter(new ArrayAdapter<HashMap<String, String>> (this,android.R.layout.simple_list_item_1 , menuItems));

The problem is the above code creates adapter successfully but it does not show in listview.

Thank you

arrayadapter couldnt work with hashmap array list have to be string try to create simple type arraylist hashmap.getvalues — Mikhaili
– Mikhaili, Commented Dec 1, 2012 at 15:15

ρяσѕρєя K · Accepted Answer · 2012-12-01 15:36:53Z

2

You can implement SimpleAdapter for filling data from ArrayList of HashMap as:

SimpleAdapter listadapter = new SimpleAdapter(this, menuItems, R.layout.row,

new String[] {"textone", "texttwo", "txtthree"}, new int[] 

{R.id.textone, R.id.texttwo, R.id.texttwo});

but for implementing SimpleAdapter you must create a layout for row with Views you want in single row

for more help you can see following tutorials to fill ListView with ArrayList of hashMap:

http://shenhengbin.wordpress.com/2012/03/17/listview-simpleadapter/

answered Dec 1, 2012 at 15:36

ρяσѕρєя K

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7 Comments

Nauman Khalid Over a year ago

This adapter works for custom list while I am using the listview control

ρяσѕρєя K Over a year ago

@user1214458 : i'm not clear what u want to say. ListView control is always same but it's delend on you either use custom Adapter or or Default Adapter getView method to create listview row

Nauman Khalid Over a year ago

I above i am confused in new int[] {R.id.textone, R.id.texttwo, R.id.texttwo}); for listview we do not have these ..

ρяσѕρєя K Over a year ago

These three are id of View to which you want to map HaspMap Values.like suppose you have Three item in one HaspMap instance and your ArrayList content 5 instances of this HashMap.you want to show these three items in one row of listView.then what you will need Create an layout for listview row with Three textView or any other Views like button ,imageView's etc. and pass these controls id to SimpleAdapter new int[] {R.id.textone, R.id.texttwo, R.id.texttwo}) as last parameter and row layout id ` R.layout.row` as third parameter

ρяσѕρєя K Over a year ago

and i also share an tutorial link in my answer in which author is doing same as you want

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