Keep in mind that HashMap does not have an order... ArrayAdapter does everything based on a position value, which indicates an ordered collection of some sort.
Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware On Tue, Apr 3, 2012 at 1:16 PM, Graham Bright <gbwienmobil...@gmail.com>wrote: > Hi, > > I have a hashmap with key, value pairs example :- > > (msisdn,value) > > 43664xxxxxxx,2 > 43665xxxxxxx,3 > > now I want to display this information in a ListView but I don't know > how to feed the data to an ArrayAdapter. > > HERE IS MY ADAPTER, note I want to replace myList with data from the > Hashmap a concatentated key+value. > > 1. Pass the above hashmap as an adapter, replacing myList with the > hashmap > > adapter=new > ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,myList); > setListAdapter(adapter); > > Note this is what I have without using the hashmap > > THANKS IN ADVANCE > > > package listmodified.org; > > import java.util.Arrays; > import java.util.ArrayList; > import java.util.HashMap; > import java.util.List; > import java.util.Map; > > import android.app.ListActivity; > import android.os.Bundle; > import android.os.Handler; > import android.os.Message; > import android.view.View; > import android.widget.AdapterView; > import android.widget.ArrayAdapter; > import android.widget.ListView; > import android.widget.TextView; > import android.widget.AdapterView.OnItemLongClickListener; > import android.view.GestureDetector.OnGestureListener; > import android.view.GestureDetector; > import android.view.MotionEvent; > import android.widget.Toast; > > > > > public class listmodified extends ListActivity implements > OnGestureListener { > public ArrayList<String> myList = new > ArrayList<String>(Arrays.asList(items)); > private TextView selection; // MAIN.xml > public ArrayAdapter<String> adapter; // my adapter > public OnItemLongClickListener itemDelListener; > private GestureDetector gestureScanner; > public int longClickedItem = 0; //check if longClick is selected or > not > private String itemSelected; // for delete function > private static final byte UPDATE_LIST = 100; > public AdapterView<?> parent; //used by OnLitemLongClickListener > public int position; > > //tie items to an array list called myList > public static String[] items={"lorem", "ipsum", "dolor", > "sit", "amet", > "consectetuer", "adipiscing", "elit", "morbi", "vel", > "ligula", "vitae", "arcu", "aliquet", "mollis", > "etiam", "vel", "erat", "placerat", "ante", > "porttitor", "sodales", "pellentesque", "augue", "purus"}; > > > > > > > > > > @Override > public void onCreate(Bundle icicle) { > super.onCreate(icicle); > > OnItemLongClickListener itemDelListener = new > OnItemLongClickListener(){ > > //@Override > public boolean onItemLongClick(AdapterView<?> parent, View > arg1, > int position, long arg3) { > // TODO Auto-generated method stub > > itemSelected=parent.getItemAtPosition(position).toString(); > adapter.remove(itemSelected); > Toast.makeText(listmodified.this, "position is:" + > position, > Toast.LENGTH_SHORT).show(); > myList.remove(this); //remove the current object , > position throws > an exception > adapter.notifyDataSetChanged(); > > > return false; > }}; > > setContentView(R.layout.main); > > > //DEFINE MY OWN VIEW TIE TO ARRAYLIST myList WHICH CONTAINS STRINGS > adapter=new > ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,myList); > setListAdapter(adapter); > > //A VIEW OF THE LIST NECESSARY FOR DELETION > > selection=(TextView)findViewById(R.id.selection); > > > // PART OF LONG CLICK SELECTED CODE > // CALLS IMPLEMENTED METHODS - detect gestures checking my list > items > gestureScanner = new GestureDetector(this); > getListView().setOnTouchListener(new View.OnTouchListener() { > @Override > public boolean onTouch(View v, MotionEvent event) { > return gestureScanner.onTouchEvent(event); > } > }); > > //UPDATE VIEW DELETE WHEN ONLONG CLICK IS PRESSED > getListView().setOnItemLongClickListener(itemDelListener); > > } > > > //LIST ITEM PRESS CHECKING > public void onListItemClick(ListView parent, View v, > int position, long id){ > selection.setText(myList.get(position)); > //check to see if LONGCLICK IS PRESSED > if (longClickedItem != -1) { > Toast.makeText(listmodified.this, "A short click > detected", > Toast.LENGTH_SHORT).show(); > > } > longClickedItem=0; > } > > //IMPLEMENTED BY GESTURE > @Override > public boolean onDown(MotionEvent arg0) { > // TODO Auto-generated method stub > return false; > } > > > @Override > public boolean onFling(MotionEvent e1, MotionEvent e2, float > velocityX, > float velocityY) { > // TODO Auto-generated method stub > return false; > } > > > //CHECKS ONLONGPRESS EVENTS SET LONG PRESS TO -1, > //COOL I CAN USE THIS TO SEE IF A LONG CLICK WAS SELECTED LATER ON > > @Override > public void onLongPress(MotionEvent e) { > // TODO Auto-generated method stub > Toast.makeText(listmodified.this, "A long click detected", > Toast.LENGTH_SHORT).show(); > > > if (e.getAction()==MotionEvent.ACTION_DOWN) > { > > longClickedItem = -1; > > } > > } > > > @Override > public boolean onScroll(MotionEvent e1, MotionEvent e2, float > distanceX, > float distanceY) { > // TODO Auto-generated method stub > return false; > } > > > @Override > public void onShowPress(MotionEvent e) { > // TODO Auto-generated method stub > > } > > > @Override > public boolean onSingleTapUp(MotionEvent e) { > // TODO Auto-generated method stub > return false; > } > private Handler updateListHandler = new Handler() { > @Override > public void handleMessage(Message msg) { > switch (msg.what) { > case UPDATE_LIST: > int position = msg.arg1; > myList.remove(position); > adapter.notifyDataSetChanged(); > Toast.makeText(listmodified.this, "OnSingleTapUp", > Toast.LENGTH_SHORT).show(); > break; > > } > ; > }; > }; > > > } > > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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