Can't click on element in ListView Android

Can't click on element in ListView Android - android

I am trying to create a custom list. My list is contained in a Fragment that correctly implements onScrollListener and populates the list using an adapter. The problem is that I cannot click on each item and I cannot figure out why. Here there is the code of my layout fragment
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:clickable="true">
<ListView
android:id="#+id/listNotification"
android:scrollbars="none"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:footerDividersEnabled="false"
android:headerDividersEnabled="false"
android:paddingStart="15dp"
android:paddingEnd="15dp"
android:clickable="true"
/>
</LinearLayout>
and here there is the code of my custom list
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:clickable="true">
<LinearLayout android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<ImageView
android:id="#+id/imageNotification"
android:layout_width="60dp"
android:layout_height="60dp"
android:padding="5dp"
android:focusable="false"/>
<LinearLayout android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/textNotification"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:padding="2dp"
android:textColor="#33CC33"
android:focusable="false"/>
<TextView
android:id="#+id/idQuestion"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone"
android:focusable="false"
/>
<TextView
android:id="#+id/typeNotification"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:visibility="gone"
android:focusable="false"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
here there is the code that creates my list using the adapter and setting the onclicklistener
adapter = new NotificationListAdapter(getActivity(), this.rows);
list = (ListView) firstAccessView.findViewById(R.id.listNotification);
list.setAdapter(adapter);
list.setOnScrollListener(this);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if(adapter.getItem(position).getTypeNotification()==0) {
mNotificationInteface.readQuestion(adapter.getItem(position).getQuestionId());
}
if(adapter.getItem(position).getTypeNotification()==1){
mNotificationInteface.readAnswer(adapter.getItem(position).getQuestionId());
}
}
});
and here there is the code of my adapter
public class NotificationListAdapter extends ArrayAdapter<NotificationItem> {
private View view;
private final Activity context;
private List<NotificationItem> rows;
private int count = 1;
public NotificationListAdapter(Activity context, List<NotificationItem> firstRows ) {
super(context, R.layout.list_notifications, firstRows);
this.context = context;
this.rows = firstRows;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
LayoutInflater inflater = context.getLayoutInflater();
view = inflater.inflate(R.layout.list_notifications, null);
view.setPadding(0,10,0,10);
holder = new ViewHolder();
holder.textNotification = (TextView) view.findViewById(R.id.textNotification);
holder.idQuestion = (TextView) view.findViewById(R.id.idQuestion);
holder.typeNotification = (TextView) view.findViewById(R.id.typeNotification);
holder.imageNotification = (ImageView) view.findViewById(R.id.imageNotification);
view.setTag(holder);
} else {
view=convertView;
holder = (ViewHolder) convertView.getTag();
}
int typeNotification = this.rows.get(position).getTypeNotification();
holder.textNotification.setTextColor(Color.BLACK);
holder.idQuestion.setText(String.valueOf(this.rows.get(position).getQuestionId()));
holder.typeNotification.setText(String.valueOf(this.rows.get(position).getTypeNotification()));
if(typeNotification==0){
holder.textNotification.setText(R.string.askQuestion);
holder.imageNotification.setImageResource(R.mipmap.iconuseranonymous);
}
if(typeNotification==1){
//nome da recuperare da con id notifica, quindi id utente quindi dome
holder.textNotification.setText(R.string.answerQuestion);
Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").transform(new CircleTransform()).fit().centerCrop().into(holder.imageNotification);
}
if(typeNotification==2){
//nome e immagine da recuperare
holder.textNotification.setText(R.string.newFriend);
Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").transform(new CircleTransform()).fit().centerCrop().into(holder.imageNotification);
}
return view;
}
#Override
public NotificationItem getItem(int position){
return this.rows.get(position);
}
#Override
public int getCount() {
return count;
}
public void setCount(int count) {
this.count = count;
}
static class ViewHolder {
ImageView imageNotification;
TextView textNotification;
TextView idQuestion;
TextView typeNotification;
int position;
}

Remove android:clickable="true" from the ListView and it's parent in your XML layout, and also from the root of your list item layout.

Related

Android ListView item clicked not working

I don't understand what's going wrong, when clicking an item on the list nothing appends.
my environment is minsdk:21, maxsdk:27, java 8 (openjdk), android-studio 3.1.4, terminal android 6.0
note : using FragmentManager or SupportFragmentManager provides the same result.
the fragment list layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:descendantFocusability="blocksDescendants"
>
<ListView
android:id="#+id/list"
android:dividerHeight="1sp"
android:divider="#color/blue_serenity_transparent"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
List row layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<GridLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:useDefaultMargins="true"
android:background="#color/blue_serenity_transparent"
android:columnCount="3"
android:rowCount="2"
>
<ImageView
android:id="#+id/notif_type"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_column="0"
android:layout_row="0"
android:layout_gravity="center_vertical"
/>
<TextView
android:id="#+id/title"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_column="1"
android:layout_row="0"
android:textSize="18dp"
android:textColor="#color/black"
/>
<TextView
android:id="#+id/date"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_row="1"
android:layout_column="1"
/>
</GridLayout>
</LinearLayout>
list setup
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
List<NotificationBean> data = new NotificationBean().list(getActivity().getBaseContext());
View v = inflater.inflate(R.layout.fragment_notifications, container, false);
list = (ListView) v.findViewById(R.id.list);
listAdapter = new Adapter(getActivity().getBaseContext(), data);
list.setAdapter(listAdapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.e(TAG, "row clicked");
}
});
return v;
}
List adapter
class NotificationsAdapter extends BaseAdapter {
private Context context;
private LayoutInflater inflater = null;
private List<NotificationBean> notifications;
public NotificationsAdapter(Context context, List<NotificationBean> notifications){
this.context = context;
this.notifications = notifications;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
return notifications.size();
}
#Override
public Object getItem(int position) {
return notifications.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null)
v = inflater.inflate(R.layout.fragment_notifications_row, null);
NotificationBean n = notifications.get(position);
GridLayout layout = (GridLayout) v.findViewById(R.id.row_layout);
if (dark) layout.setBackgroundColor(getResources().getColor(R.color.blue_serenity_transparent));
else layout.setBackgroundColor(getResources().getColor(R.color.white));
dark = !dark;
ImageView notifType = (ImageView) v.findViewById(R.id.notif_type);
notifType.setImageResource(n.getIcon());
TextView title = (TextView) v.findViewById(R.id.title);
title.setText(n.getTitle());
TextView date = (TextView) v.findViewById(R.id.date);
date.setText(Constants.DTF.format(n.getDate()));
return v;
}
}

Android AlertDialog ListView w/ several TextViews and an EditText an the end

I'm trying to create an AlertDialog that has many TextViews (so that scrolling in necessary) and an EditText at the end for users to enter a value that is not included in the list. When AlertDialog is first presented, things look good. However, when I scroll back to the top after scrolling to the bottom problems occur.
Here is the bottom of the list initially presented. All good.
But here is what it looks like after I scroll to the top. Not so good.
This is the Adapter class that I am using:
public class MultiSelectOtherDialog extends DialogFragment {
public static final String TAG = "MultiSelectOtherDialog";
private ArrayList<Bean> mList = new ArrayList<>();
public static MultiSelectOtherDialog newInstance(String aTitle, String[] aElems) {
MultiSelectOtherDialog frag = new MultiSelectOtherDialog();
Bundle args = new Bundle();
args.putString("title", aTitle);
args.putStringArray("elems", aElems);
frag.setArguments(args);
return frag;
}
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// length of this list determines how many items to present - need an extra for the EditText
// at the end for "Other"
int mListLen = (getArguments().getStringArray("elems").length) + 1;
//int mListLen = (getArguments().getStringArray("elems").length);
for (int i = 0; i < mListLen; i++) {
mList.add(new Bean());
}
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
View view = getActivity().getLayoutInflater().inflate(R.layout.scb_listview2, null);
ListView listViewItems = (ListView)view.findViewById(R.id.lvScb);
listViewItems.setAdapter(new MultiSelectOtherAdapter());
listViewItems.setOnItemClickListener(new OnItemClickListenerListViewItem());
builder.setTitle(getArguments().getString("title")).setView(view);
AlertDialog diagFragDialog = builder.create();
return diagFragDialog;
}
public class MultiSelectOtherAdapter extends BaseAdapter {
#Override
public int getCount() {
return mList.size();
}
#Override
public Object getItem(int position) {
return mList.get(position);
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
// needed for the "Other" EditText at the end
if (position < mList.size() - 1) {
convertView = View.inflate(getActivity(), R.layout.scb_item, null);
holder.tv = (TextView) convertView.findViewById(R.id.tv);
Log.d(TAG, "1)");
}
else {
convertView = View.inflate(getActivity(), R.layout.scb_item_other, null);
holder.tv = (TextView) convertView.findViewById(R.id.et);
Log.d(TAG, "2)");
}
holder.cb = (SmoothCheckBox) convertView.findViewById(R.id.scb);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
Log.d(TAG, "3)");
}
final Bean bean = mList.get(position);
holder.cb.setOnCheckedChangeListener(new SmoothCheckBox.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(SmoothCheckBox checkBox, boolean isChecked) {
bean.isChecked = isChecked;
}
});
// needed for the "Other" EditText at the end
if (position < getArguments().getStringArray("elems").length) {
String text = getArguments().getStringArray("elems")[position];
holder.tv.setText(text);
Log.d(TAG, "4)");
}
else {
convertView = View.inflate(getActivity(), R.layout.scb_item_other, null);
holder.tv = (TextView) convertView.findViewById(R.id.et);
holder.cb = (SmoothCheckBox) convertView.findViewById(R.id.scb);
convertView.setTag(holder);
Log.d(TAG, "5)");
}
holder.cb.setChecked(bean.isChecked);
Log.d(TAG, "6)");
return convertView;
}
class ViewHolder {
SmoothCheckBox cb;
TextView tv;
}
}
public class OnItemClickListenerListViewItem implements AdapterView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Bean bean = (Bean) parent.getAdapter().getItem(position);
bean.isChecked = !bean.isChecked;
SmoothCheckBox checkBox = (SmoothCheckBox) view.findViewById(R.id.scb);
checkBox.setChecked(bean.isChecked, true);
}
}
class Bean implements Serializable {
boolean isChecked;
}
}
And the layouts:
AlertDialog layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="#+id/lvScb"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:cacheColorHint="#0000"
android:divider="#android:color/transparent"
android:dividerHeight="0dp"
android:layout_above="#+id/viewLineHoriz" />
<View
android:id="#+id/viewLineHoriz"
android:layout_width="fill_parent"
android:layout_height="1dp"
android:layout_marginBottom="0dp"
android:layout_above="#+id/bottonRowScb"
android:background="?android:attr/dividerVertical" />
<LinearLayout
style="?android:attr/buttonBarStyle"
android:id="#+id/bottonRowScb"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:measureWithLargestChild="true"
android:paddingTop="0dip"
android:orientation="horizontal" >
<Button
style="?android:attr/buttonBarButtonStyle"
android:id="#+id/buttonOKScb"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="#string/ok_string" />
<View
android:id="#+id/viewLineVert"
android:layout_height="fill_parent"
android:layout_width="1dp"
android:layout_marginBottom="0dp"
android:background="?android:attr/dividerVertical" />
<Button
style="?android:attr/buttonBarButtonStyle"
android:id="#+id/buttonCancelScb"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="#string/cancel_string" />
</LinearLayout>
</RelativeLayout>
TextView item:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:orientation="horizontal">
<TextView
android:id="#+id/tv"
android:layout_weight="100"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:textSize="15sp" />
<cn.refactor.library.SmoothCheckBox
android:id="#+id/scb"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_gravity="center_vertical|right"
android:layout_weight="1"
android:layout_margin="5dp"/>
</LinearLayout>
And EditText item:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:orientation="horizontal">
<EditText
android:id="#+id/et"
android:hint="#string/other_notes_string"
android:layout_weight="100"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:textSize="15sp"
android:textStyle="bold|italic"/>
<cn.refactor.library.SmoothCheckBox
android:id="#+id/scb"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_gravity="center_vertical|right"
android:layout_weight="1"
android:layout_margin="5dp"/>
</LinearLayout>

In your adapter change this:
#Override
public long getItemId(int position) {
return position;
}
And, also in your getView() method, put this code:
converView = null;
before :
if(convertView == null){
// your codes
}

ListView with BaseAdapter and LinearLayout?

I'm trying create a BaseAdapter to my ListView. The problem is when I do create a LinearLayout inside other LinearLayout the listener OnItemClickListener doesn't works. If I put the components outside of LinearLayout works fine.
How could I do this works ?
ListView
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="#+id/lvEntregasPendente"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
></ListView>
</LinearLayout>
Adapter XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffe3b3"
android:layout_margin="5dp"
android:padding="2dp"
android:id="#+id/llEntregaPendenteVendas">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/tvVenda"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Venda"
android:textColor="#color/action_bar"
android:textStyle="bold"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Entrega em: "
android:textColor="#color/action_bar"
android:textStyle="bold"
android:layout_marginLeft="10dp"
/>
<TextView
android:id="#+id/tvDataEntrega"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Data"
android:textColor="#color/action_bar"
android:textStyle="bold"
android:layout_weight="1"
/>
<CheckBox
android:id="#+id/cbEntregue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/action_bar"
android:text="Entregue"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/tvAtrasoEntrega"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Atraso de: 20 dias"
android:textColor="#FF0000"
android:padding="5dp"
android:visibility="visible"
android:layout_weight="1"
android:gravity="right"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
Adapter
public class EntregaPendenteListAdapter extends BaseAdapter {
private Context context;
private List<Venda> lista;
private DateControl dateControl;
private EntregaPendenteFrag rpf;
private Venda venda;
public EntregaPendenteListAdapter(Context context, List<Venda> lista, EntregaPendenteFrag rpf) {
this.context = context;
this.lista = lista;
this.rpf = rpf;
dateControl = new DateControl();
}
/** limpa a lista */
public void clearList(){
lista.clear();
notifyDataSetChanged();
}
/** altera lista */
public void changeList(List<Venda> lista){
this.lista = lista;
notifyDataSetChanged();
}
#Override
public int getCount() {
return lista.size();
}
#Override
public Object getItem(int position) {
return lista.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
final ViewHolder holder;
Venda venda = lista.get(position);
if (convertView == null) {
holder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.entregas_pendente_adapter, parent, false);
holder.llEntregaPendenteVendas = (LinearLayout) convertView.findViewById(R.id.llEntregaPendenteVendas);
holder.tvVenda = (TextView) convertView.findViewById(R.id.tvVenda);
holder.tvDataEntrega = (TextView) convertView.findViewById(R.id.tvDataEntrega);
holder.tvAtrasoEntrega = (TextView) convertView.findViewById(R.id.tvAtrasoEntrega);
holder.cbEntregue = (CheckBox)convertView.findViewById(R.id.cbEntregue);
convertView.setTag(holder);
}else{
holder = (ViewHolder)convertView.getTag();
}
holder.tvVenda.setText("Venda: " + FormataCodigo.getCodFormat(venda.getId()));
if(venda.getData_entrega() != null){
holder.tvDataEntrega.setText(new SimpleDateFormat("dd-MM-yyyy").format(venda.getData_entrega()));
if(dateControl.getDiasVencido(venda.getData_entrega()) > 0){
holder.tvAtrasoEntrega.setText("Atraso de: " + new DateControl().getDiasVencido(venda.getData_entrega()) + "dias");
holder.tvAtrasoEntrega.setVisibility(View.VISIBLE);
}
}
if((position % 2) == 0){
holder.llEntregaPendenteVendas.setBackgroundColor(Color.parseColor("#ffe3b3"));
}else{
holder.llEntregaPendenteVendas.setBackgroundColor(Color.WHITE);
}
return convertView;
}
private static class ViewHolder{
LinearLayout llEntregaPendenteVendas;
TextView tvVenda;
TextView tvDataEntrega;
TextView tvAtrasoEntrega;
CheckBox cbEntregue;
}
}
Activity
//listview
lvEntregasPendente = (ListView)view.findViewById(R.id.lvEntregasPendente);
lvEntregasPendente.setOnItemClickListener(this);
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.i("ITEM->", position + "");
}

It seems your CheckBox is stealing the focus.
Try setting these properties on it:
android:focusable="false"
android:focusableInTouchMode="false"
android:clickable="false"

Gridview numbering

I have this gridview. is it possible to have numbers on the side of gridview like in excel 1,2,3 or a, b, c ,d
my code
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<GridView
android:id="#+id/gridview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:numColumns="4"
android:stretchMode="columnWidth" />
</RelativeLayout>
something i want to achieve

You'll have to add numbering to each of the cells and only display it when it is the leftmost cell.
Cell layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/row_number"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<!-- The rest of your layout -->
</LinearLayout>
</LinearLayout>
In your Adapter
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = LayoutInflater.from(context).inflate(R.layout.grid_cell);
TextView rowNumber = (TextView) v.findViewById(R.id.row_number);
if (position % colNum == 0) { // colNum: number of columns
int row = position / colNum + 1; // get the row number
rowNumber.setText(String.valueOf(row));
rowNumber.setVisibility(View.VISIBLE);
} else {
rowNumber.setVisibility(View.GONE);
}
return v;
}
Note: For the sake of simplicity I am not using the ViewHolder pattern. But you should!

// try this way hope this will help you...
grid_item.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center">
<TextView
android:id="#+id/txtGridItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="1"/>
<ImageView
android:id="#+id/imgGridItem"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher"
android:adjustViewBounds="true"
android:scaleType="fitXY"/>
</LinearLayout>
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center">
<GridView
android:id="#+id/gridview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:numColumns="4"
android:stretchMode="columnWidth" />
</LinearLayout>
MainActivity.java
public class MainActivity extends Activity {
private GridView gridview;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gridview = (GridView) findViewById(R.id.gridview);
ArrayList<String> images = new ArrayList<String>();
images.add("image1path");
images.add("image2path");
images.add("image3path");
images.add("image4path");
images.add("image5path");
images.add("image6path");
images.add("image7path");
images.add("image8path");
images.add("image9path");
images.add("image10path");
images.add("image11path");
images.add("image12path");
gridview.setAdapter(new GridAdapter(images,this));
gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this,String.valueOf(position+1),Toast.LENGTH_SHORT).show();
}
});
}
class GridAdapter extends BaseAdapter{
private Context context;
private ArrayList<String> images;
public GridAdapter(ArrayList<String> images,Context context){
this.context = context;
this.images = images;
}
#Override
public int getCount() {
return images.size();
}
#Override
public Object getItem(int position) {
return images.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if(convertView == null){
holder = new ViewHolder();
convertView = LayoutInflater.from(context).inflate(R.layout.grid_item,null,false);
holder.imgGridItem = (ImageView) convertView.findViewById(R.id.imgGridItem);
holder.txtGridItem = (TextView) convertView.findViewById(R.id.txtGridItem);
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
if(position%4 == 0){
holder.txtGridItem.setVisibility(View.VISIBLE);
holder.txtGridItem.setText(String.valueOf((position / 4)+1));
}else{
holder.txtGridItem.setVisibility(View.GONE);
}
holder.imgGridItem.setImageResource(R.drawable.ic_launcher);
return convertView;
}
class ViewHolder{
ImageView imgGridItem;
TextView txtGridItem;
}
}
}

Pagination for ListView in android

I have to apply pagination concept on ListView my list view contains data parsed from web service. below is code given that how I have displayed data in list view as below.
try {
ArrayList<HashMap<String, String>> arl (ArrayList<HashMap<String, String>>) getIntent().getSerializableExtra("arraylist");
System.out.println("...serialized data.."+arl);
lv1 = (ListView) findViewById(R.id.lstlodgingresult);
adapter = new SimpleAdapter(this, arl, R.layout.custom_row_view,
new String[] { "Srno", "Names", "URL", "Address1", "Address2", "Telephone", "Category", "PetH",
"PetInfo" }, new int[] { R.id.txtSrno,R.id.txtname, R.id.txturl, R.id.txtaddress1, R.id.txtaddress2, R.id.txtphone, R.id.txtcategory,
R.id.txtpetpolicyH, R.id.txtpetpolicyC }
);
lv1.setScrollbarFadingEnabled(false);
lv1.refreshDrawableState();
lv1.setAdapter(adapter);
} catch (Exception e) {
e.printStackTrace();
}

you just need to add a Footer View in the Listyou created. Then for the footer view (might be button/image/text) set a ClickListener for that and in Listener add the items into your list and again refresh the activity. I am adding a little tutorial that will help you in this.
I used the following Method for Pagination:
The List Class:
public class customListView extends Activity implements OnClickListener{
private static class EfficientAdapter extends BaseAdapter {
private LayoutInflater mInflater;
Context context;
public EfficientAdapter(Context context) {
this.context = context;
mInflater = LayoutInflater.from(context);
}
public int getCount() {
return add_Names.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.listcontent, null);
holder = new ViewHolder();
holder.text = (TextView) convertView
.findViewById(R.id.txt1);
holder.text2 = (TextView) convertView
.findViewById(R.id.txt2);
holder.text3 = (TextView) convertView
.findViewById(R.id.txt3);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.text.setText(add_Names.get(position).toString());
holder.text2.setText(location.get(position).toString());
holder.text3.setText(details.get(position).toString());
return convertView;
}
static class ViewHolder {
TextView text;
TextView text2;
TextView text3;
}
}//end of efficient Adapter Class
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listview);
adapter = new EfficientAdapter(this);
l1 = (ListView) findViewById(R.id.ListView01);
View footerView =
((LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.layout_footer, null, false);
l1.addFooterView(footerView);
l1.setAdapter(adapter);
mLayout = (LinearLayout) footerView.findViewById(R.id.footer_layout);
more = (Button) footerView.findViewById(R.id.moreButton);
more.setOnClickListener(this);
l1.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Toast.makeText(getBaseContext(), "You clciked "+add_Names.get(arg2).toString(), Toast.LENGTH_LONG).show();
}
});
}
#Override
public void onClick(View v) {
switch(v.getId())
{
case R.id.moreButton:
//Your code to add some more data into list and then call the following to refresh your lits
adapter.notifyDataSetChanged();
break;
}//end of switch
}//end of onClick
}//end of Custom List view class
layout_footerview.xml:(you can add whatever you link in the footer for the list. I used button you can use Text or image or whatever you want)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingTop="7dip"
android:paddingBottom="7dip"
android:orientation="horizontal"
android:gravity="center">
<LinearLayout
android:id="#+id/footer_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center"
android:layout_gravity="center">
<Button
android:text="Get more.."
android:id="#+id/moreButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="14dip"
android:textStyle="bold">
</Button>
</LinearLayout>
</LinearLayout>
listview.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView android:id="#+id/ListView01" android:layout_height="wrap_content"
android:layout_width="fill_parent">
</ListView>
</RelativeLayout>
list-content.xml:(modify as u like to be your list row)
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView android:id="#+id/image1" android:layout_width="wrap_content" android:layout_height="wrap_content"
android:src="#drawable/icon"></ImageView>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content" android:id="#+id/txt1" android:layout_toRightOf="#+id/image1"
android:text="Test Description" android:textSize="15dip" android:textStyle="bold">
</TextView>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content" android:id="#+id/txt2" android:layout_below="#+id/txt1" android:layout_toRightOf="#+id/image1"
android:text="Address" android:textSize="10dip"></TextView>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content" android:id="#+id/txt3" android:layout_below="#+id/txt2" android:layout_toRightOf="#+id/image1"
android:text="Details" android:textSize="10dip" ></TextView>
</RelativeLayout>
I Hop this will definetly help you.!
Mark this as true and UpVote; if this helps you.
Thanks
sHaH..

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Can't click on element in ListView Android - android

Remove android:clickable="true" from the ListView and it's parent in your XML layout, and also from the root of your list item layout.

Related

Android ListView item clicked not working

Android AlertDialog ListView w/ several TextViews and an EditText an the end

ListView with BaseAdapter and LinearLayout?

Gridview numbering

Pagination for ListView in android

Categories

Resources