Develop Reference

Start chronometer on each row of Listview in android

I have list items on one list layout among items i have there is a chronometer that i need to start on each row ,other items come from database, but when activity launches Chronometer stays on 00:00. Please help me , i did many research some tell me that in can use adapter but i am not familiar with it, i don't know if there is not another way to do it without using adapter .
MainActivity .java:
private ArrayList<HashMap<String, String>> userList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myList = (ListView)findViewById(R.id.listView);
inflatedView =
getLayoutInflater().inflate(R.layout.payement_timing_list_adapter_view, null);
chronometer = (Chronometer)
inflatedView.findViewById(R.id.chronometer);
if (userList.size() != 0) {
//Set the User Array list in ListView
adapter = new SimpleAdapter(getApplicationContext(), userList, R.layout.payement_timing_list_adapter_view,
new String[]{"Driver_fullname", "plate_no", "parking_name"},
new int[]{R.id.drivername, R.id.plateno, R.id.pname});
myList.setAdapter(adapter);
}
myList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent,
View view, int position, long id) {
Log.d("My POSITION",""+position);
((Chronometer)inflatedView.findViewById(R.id.chronometer)).myList.
(position).start();
chronometer.start();
}
});

You will need to use a custom adapter for your ListView, and declare the Chronometer in the getView method for each row.
A custom adapter could be onle like this:
public class CustomAdapter extends BaseAdapter{
ArrayList<HashMap<String, String>> users;
Context context;
private static LayoutInflater inflater=null;
public CustomAdapter(MainActivity mainActivity, ArrayList<HashMap<String, String>> usersList) {
// TODO Auto-generated constructor stub
users = usersList;
context=mainActivity;
inflater = ( LayoutInflater )context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return items.length;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
public class Holder
{
TextView tv;
...
Chronometer cr;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
Holder holder=new Holder();
View rowView;
//Create a custom layout for your row view with the chronometer on it and get it here
rowView = inflater.inflate(R.layout.custom_row_item, null);
holder.tv=(TextView) rowView.findViewById(R.id.textView1);
...
holder.cr=(Chronometer) rowView.findViewById(R.id.chronometer);
cr.start();
holder.tv.setText("GET THE TEXT YOU NEED FROM USERS LIST HERE");
return rowView;
}
}
Then declare and use your custom adapter like:
CustomAdapter myAdapter = new CustomAdapter(YourActivity.this, userList);
myList.setAdapter(myAdapter);
Hope it helps :)

Order items in a Multi Values Listview in Android

I'm looking to some way for sort my items inside my listview. Which is a multi values Listview with 3 items for each row. I use a Custom ListViewAdapter to achieve this, but they are sorted in order of introduction inside the ArraysList. Something like:
1-2-3-4-5-6....
I want to inverse this order, having in top of my Listview the last item introduced:
6-5-4-3-2-1....
Here is my Custom ListViewAdapter:
public class ListViewAdapter extends BaseAdapter {
static class ViewHolder {
TextView number;
TextView elapsedTime;
TextView totalTime;
}
public static final String FIRST_COLUMN="First";
public static final String SECOND_COLUMN="Second";
public static final String THIRD_COLUMN="Third";
public ArrayList<HashMap<String, String>> list;
Activity activity;
public ListViewAdapter(Activity activity,ArrayList<HashMap<String, String>> list){
super();
this.activity=activity;
this.list=list;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return list.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return list.get(position);
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
LayoutInflater inflater=activity.getLayoutInflater();
final ViewHolder viewHolder;
if(convertView == null){
convertView = inflater.inflate(R.layout.timer_row, null);
viewHolder = new ViewHolder();
viewHolder.number = (TextView) convertView.findViewById(R.id.number);
viewHolder.elapsedTime = (TextView) convertView.findViewById(R.id.elapsed_time);
viewHolder.totalTime =(TextView) convertView.findViewById(R.id.total_time);
convertView.setTag(viewHolder);
}
else{
viewHolder = (ViewHolder) convertView.getTag();
}
HashMap<String, String> map=list.get(position);
viewHolder.number.setText(map.get(FIRST_COLUMN));
viewHolder.elapsedTime.setText(map.get(SECOND_COLUMN));
viewHolder.totalTime.setText(map.get(THIRD_COLUMN));
return convertView;
}
}
And here is how I call it in my activity:
//ListView Adapter
mListviewLayout = (RelativeLayout)v.findViewById(R.id.listview_times_layout);
mTimesListview = (ListView)v.findViewById(R.id.times_listview);
mTimesArrayList = new ArrayList<HashMap<String,String>>();
mListViewAdapter= new ListViewAdapter(mActivity, mTimesArrayList);
mTimesListview.setAdapter(mListViewAdapter);
Finally, here is how I introduce items inside the Hashmap:
btnNextCicle.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (isTimerPaused()) {
onTimerStop();
} else {
mListviewLayout.setVisibility(View.VISIBLE);
mCiclesCounter++;
HashMap<String, String> newEntry = new HashMap<String, String>();
newEntry.put(ListViewAdapter.FIRST_COLUMN, "#" + mCiclesCounter);
newEntry.put(ListViewAdapter.SECOND_COLUMN, Util.getTimeForTimer(mElapsedCicleTime));
newEntry.put(ListViewAdapter.THIRD_COLUMN, Util.getTimeForTimer(mTimeInMilliseconds));
mCicleStartTime = SystemClock.elapsedRealtime();
mTimesArrayList.add(newEntry);
}
}
});

You can subclass HashMap<String, Sting> and make it implements Comparable. Then you can use Arrays.sort(yourComparable) to sort the array the way you want.

why android mycustom adapter not working

mycustom adapter which extends from baseadapter but when i run my main java file it shows main activity no
list view item
public class MyCustomadapter extends BaseAdapter{
private Context mycontext;
String[] mystringlist;
public MyCustomadapter(Context context,String[] strText) {
this.mycontext=context;
this.mystringlist = strText;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return mystringlist.length;
}
#Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View rowView = convertView;
LayoutInflater inflater = (LayoutInflater) mycontext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rowView = inflater.inflate(R.layout.each_row, parent,false);
TextView tv = (TextView) rowView.findViewById(R.id.rowtxt);
tv.setText(mystringlist[position]);
return rowView;
}
}
mycustom adapter which extends from baseadapter but when i run my main java file it shows main activity no
list view item

problem:
return 0;
You are return 0 means there would be no list items to be displayed in your ListView thus giving you 0 result.
You need to return the number of item in your array or the length of it.
sample:
#Override
public int getCount() {
// TODO Auto-generated method stub
return mystringlist.length;
}

#Override
public int getCount()
{
// TODO Auto-generated method stub
return mystringlist.length();
}

My idea is extending ArrayAdapter, Have a look at the following codes
public class MyAdapter extends ArrayAdapter<String>{
public MyAdapter(Context context, String[] items) {
super(context, 0, items);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// your codes for generating rows
String thisItem = getItem(position);
}
}
You're done, also you're no longer need to override other methods!

Just as an addendum your getItem() method is incorrect. It should read as follows:
#Override
public Object getItem(int arg0) {
return mystringlist[position];
}

How to send ArrayList into BaseAdapter Android

I want to display my JSON into gridview, before it.. i displayed my JSON into ListView, and it works. but in BaseAdapter, i don't know how to send my JSON that I have put into ArrayList into Base Adapter
so this is my source code :
Activity :
public class MainActivity extends ListActivity {
List AgenList = new ArrayList();
boolean boolStatusKoneksi=true;
private ProgressDialog Dialog;
protected Context applicationContext;
#Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new AgenAsyncTask().execute();
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(new AgenAdapter(this));
}
public class AgenAsyncTask extends AsyncTask<String, String, String>
{
#Override
protected void onPreExecute() {
super.onPreExecute();
Dialog = new ProgressDialog(MainActivity.this);
Dialog.setMessage("Mohon Tunggu sebentar...");
Dialog.setIndeterminate(false);
Dialog.setCancelable(true);
Dialog.show();
}
protected String doInBackground(String... args) {
String url = ("http:10.10.2/selectAgent.htm");
try{
JSONParser j=new JSONParser();
JSONArray jsonArray = j.takeJson(url);;
for(int i =0; i<jsonArray.length(); i++){
JSONObject c = jsonArray.getJSONObject(i);
HashMap<String, String> map = new HashMap<String, String>();
if (c.has("atasan"))
map.put("atasan", c.get("atasan").toString());
if (c.has("nama_agen"))
map.put("nama_agen", c.get("nama_agen").toString());
if (c.has("kode_agen"))
map.put("kode_agen", c.get("kode_agen").toString());
if (c.has("no_aaji"))
map.put("no_aaji", c.get("no_aaji").toString());
if (c.has("jenis"))
map.put("jenis", c.get("jenis").toString());
AgenList.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String file_url) {
}
}
This is my BaseAdapter :
public class AgenAdapter extends BaseAdapter {
public AgenAdapter(MainActivity mainActivity) {
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 0;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater layout = getLayoutInflater();
View view= layout.inflate(R.layout.list_item,parent,false);
TextView ATASAN = (TextView) findViewById(R.id.atasan);
TextView NAMA_AGEN= (TextView) findViewById(R.id.nama_agen);
TextView KODE_AGEN= (TextView) findViewById(R.id.kode_agen);
TextView NO_AAJI= (TextView) findViewById(R.id.no_aaji);
TextView JENIS= (TextView) findViewById(R.id.jenis);
return view;
}
}
}
As you see, i have ArrayList named as = AgenList but i haven't put it into my BaseAdapter.

make a parametrized constructor and pass your array list into its paramerts. so your class will be like
public class AgenAdapter extends BaseAdapter {
List<yourObj> list;
Activity a;
public AgenAdapter(Activity activity,List<yourObj> list) {
this.a=activity;
this.list=list;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return list.size();///////return size of list
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;///// dont return null here
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;/////////return position as itemID
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater layout = getLayoutInflater();
View view= layout.inflate(R.layout.list_item,parent,false);
TextView ATASAN = (TextView) findViewById(R.id.atasan);
TextView NAMA_AGEN= (TextView) findViewById(R.id.nama_agen);
TextView KODE_AGEN= (TextView) findViewById(R.id.kode_agen);
TextView NO_AAJI= (TextView) findViewById(R.id.no_aaji);
TextView JENIS= (TextView) findViewById(R.id.jenis);
return view;
}
}

try this.
gridview.setAdapter(new AgenAdapter(this), AgenList);
and use this line in your onPostExecute() instead of onCreate()
Like this:
#Override
protected void onPostExecute(String file_url) {
gridview.setAdapter(new AgenAdapter(this), AgenList);
}

Have a look at ArrayAdapter. It contains all of the implementation for an Adapter based on an ArrayList.
Make your adapter a subclass of ArrayAdapter, giving a parametrised type. Yours in this case being Map<String, String>
public class ResultAdapter extends ArrayAdapter<Map<String,String>> {
private int mResource;
/**
* #param context
* #param resource
*/
public ResultAdapter(Context context, int resource, ArrayList<Map<String,String>> dataList) {
super(context, resource, dataList);
this.mResource = resource;
}
...
}
Override the getView method of the ArrayAdapter to use to set the data given to the views.
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view;
// If the view is already inflated, reuse it.
// Else inflate the view
if (convertView != null) {
view = convertView;
} else {
//inflate view
final LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(mResource, parent, false);
}
TextView ATASAN = (TextView) findViewById(R.id.atasan);
...
//Get data here
Map<String, String> item = getItem(position);
//Set data to the View's e.g.
ATASAN.setText(item.get("ATASAN"));
...
return view;
}

Listview click is not fire.

I created custom adapter for listview which contain text and images, on click of particular list item I have to open another activity, but I am not able to fire listview click event, below is my code.
Thanks.
Adapter
public class ImageAndTextAdapter extends ArrayAdapter<String> {
private LayoutInflater mInflater;
private Context myCtx;
private String[] mStrings;
private TypedArray mIcons;
private int mViewResourceId;
public ImageAndTextAdapter(Context ctx, int viewResourceId,
String[] strings, TypedArray icons) {
super(ctx, viewResourceId, strings);
myCtx = ctx;
mInflater = (LayoutInflater)ctx.getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
mStrings = strings;
mIcons = icons;
mViewResourceId = viewResourceId;
}
#Override
public int getCount() {
return mStrings.length;
}
#Override
public String getItem(int position) {
return mStrings[position];
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
convertView = mInflater.inflate(mViewResourceId, null);
ImageView iv = (ImageView)convertView.findViewById(R.id.option_icon);
iv.setImageDrawable(mIcons.getDrawable(position));
TextView tv = (TextView)convertView.findViewById(R.id.option_text);
tv.setText(mStrings[position]);
return convertView;
}
}
Main acitivity
public class OurWishingWellActivity extends ListActivity implements OnClickListener{
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.list_view_image);
Context ctx = getApplicationContext();
Resources res = ctx.getResources();
String[] options = res.getStringArray(R.array.reg_item_names);
TypedArray icons = res.obtainTypedArray(R.array.reg_icons);
setListAdapter(new ImageAndTextAdapter(ctx, R.layout.list_item,
options, icons));
}
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
}

Respected Aafag#
You have write onclick of listview like below.
#Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
super.onListItemClick(l, v, position, id);
Toast.makeText(AdvancedListViewActivity.this, "working", Toast.LENGTH_SHORT).show();
System.out.println("working!!!!!!!!!");
}

Add listener
#Override
public View getView(int position, View convertView, ViewGroup parent) {
convertView = mInflater.inflate(mViewResourceId, null);
ImageView iv = (ImageView)convertView.findViewById(R.id.option_icon);
iv.setImageDrawable(mIcons.getDrawable(position));
TextView tv = (TextView)convertView.findViewById(R.id.option_text);
tv.setText(mStrings[position]);
convertView .setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity();
}
});
return convertView;
}