Develop Reference

setVisibility true of dynamic id of a layout

I have created ListView in which each button id comprises of database_idx10+button_number
For example, I have set the id as 101 i.e. 10=database_id & 1=button_number
Now I've to setVisibility of id 101 to View.GONE which is a unique id generated by me.
How can I use this generated id to set visibility true.
I am retriving this id by calling a user define function "click" and in xml I have set android:onClick="click"
public void click(View view) {
final int position = view.getId();
int button_number = position % 10;
int id = position/10;
int layout_id=id*10+2;
if(button_number==1){
//have to set visibity true of layout_id
}
}
NOTE
I was able to set visibility from visible to gone button but not the
opposite.

If this button is Child of your view object you can do something like this
Button btn = (Button) view.findViewById(your_id);
btn.setVisibility(View.VISIBLE);
Or if not you have to findById this view in his parent layout or in activity.

This is not the solution of the question asked, but anyway to uniquely identify a button in your list item is easy. You don't have to set unique IDs yourself actually. The View reference of each button in your list is different already. You just have to identify them using the position in your getView method.
Here's a sample getView method of the adapter in your list.
public View getView (int position, View convertView, ViewGroup parent){
if( convertView == null ){
//We must create a View:
convertView = inflater.inflate(R.layout.my_list_item, parent, false);
}
// Here we can do changes to the convertView
Button b = convertView.findViewById(R.id.button);
// Set your visibility here
if(your_condition_is_true) b.setVisibility(View.VISIBLE);
else b.setVisibility(View.GONE);
return convertView;
}

try to do this
view.setVisibility(View.VISIBLE);

You need a boolean variable in the Details class to hold the visibility of the details section.
Your adapter code should be,
class MyAdapter extends BaseAdapter {
ArrayList<Details> list;
Context context;
public MyAdapter(Context context, RealmResults<Details> result2) {
this.context = context;
this.list = result2;
}
public class Holder {
TextView topic;
TextView detail;
LinearLayout details;
ImageButton send;
ImageButton edit;
ImageButton delete;
public Holder(View v) {
this.topic= (TextView) v.findViewById(R.id.TextView1);
this.detail= (TextView) v.findViewById(R.id.td);
this.details = (LinearLayout) v.findViewById(R.id.details);
this.send= (ImageButton) v.findViewById(R.id.imagebutton1);
this.edit= (ImageButton) v.findViewById(R.id.imagebutton3);
this.delete= (ImageButton) v.findViewById(R.id.imagebutton2);
}
}
#Override
public View getView(int i, View view, ViewGroup viewGroup) {
View row=view;
Holder holder=null;
if(row == null) {
LayoutInflater inflater= (LayoutInflater) context.getSystemService(MainActivity.context.LAYOUT_INFLATER_SERVICE);
row= inflater.inflate(R.layout.layout,viewGroup,false);
holder = new Holder(row);
row.setTag(holder);
} else {
holder= (Holder) row.getTag();
}
final Details temp = (Details) getItem(i);
holder.topic.setText(temp.getTopic());
holder.detail.setText(temp.getTopic_details());
if(temp.isDetailButtonVisible()){
holder.details.setVisiblity(View.VISIBLE);
} else {
holder.details.setVisiblity(View.GONE);
}
holder.topic.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
temp.setDetailButtonVisibility(false);
}
});
holder.send.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
}
});
holder.detail.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
}
});
holder.edit.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
}
});
holder.delete.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
}
});
return row;
}
}
You layout should be,
<?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:layout_marginTop="10dp"
android:layout_marginBottom="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="6"
android:orientation="horizontal"
android:background="#5894CA"
android:clickable="true">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="4"
android:id="#+id/TextView1"
android:text="Bank of baroda details...."
android:layout_marginStart="10dp"
android:textStyle="bold"
android:fontFamily="sans-serif-condensed"
android:layout_marginTop="10px"
android:textSize="20dp" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="2"
android:orientation="horizontal">
<ImageButton
android:layout_width="32dp"
android:layout_height="32dp"
android:id="#+id/imagebutton1"
android:background="#drawable/share" />
<ImageButton
android:layout_width="32dp"
android:layout_height="32dp"
android:id="#+id/imagebutton3"
android:layout_marginStart="10dp"
android:background="#drawable/edit_text" />
<ImageButton
android:layout_width="32dp"
android:layout_height="32dp"
android:id="#+id/imagebutton2"
android:layout_marginStart="10dp"
android:background="#drawable/gnome_edit_delete" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="120dp"
android:orientation="vertical"
android:clickable="true"
android:id="#+id/details"
android:visibility="invisible" >
<TextView
android:layout_width="match_parent"
android:layout_height="148dp"
android:background="#drawable/bg"
android:text="I have a LinearLayout that I've styled to look like a button, and it contains a few text/ImageView elements. I would like to make the whole LinearLayout act like a button, in particular to give it states that are defined in a so it has a different background when it is pressed..."
android:layout_margin="10dp"
android:id="#+id/td" />
</LinearLayout>
</LinearLayout>

How to add button to custom adapter?

I am using FunDapter for my project.When i try to add imagebutton to my layout other texts become unclickable.Does nothing when i click them.How can i add button to this adapter?
Below is list_layout where everything works fine
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Isimsiz"
android:id="#+id/Housename"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginLeft="2dp"
android:clickable="false"
android:textColor="#241d1d"
android:layout_row="0"
android:layout_column="0"
android:layout_marginRight="2dp"
android:layout_marginTop="2dp"
android:layout_marginBottom="2dp" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Aciklama Yok"
android:id="#+id/Desc"
android:layout_below="#+id/Housename"
android:clickable="false"
android:layout_alignStart="#+id/Housename"
android:textColor="#241d1d"
android:layout_row="1"
android:layout_column="0"
android:layout_marginLeft="2dp"
android:layout_marginRight="2dp"
android:layout_marginTop="2dp"
android:layout_marginBottom="2dp"
android:layout_alignEnd="#+id/Housename" />
</RelativeLayout>
When i add image button nothing is clickable except imagebutton
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageButton"
android:layout_alignTop="#+id/Housename"
android:layout_alignParentEnd="true"
android:layout_alignBottom="#+id/Desc"
android:clickable="true"
android:onClick="berk"
/>
And this is part of the class where i create my adapter
public void processFinish(String s) {
productList = new JsonConverter<Product>().toArrayList(s, Product.class);
BindDictionary<Product> dict = new BindDictionary<Product>();
dict.addStringField(R.id.Housename, new StringExtractor<Product>() {
#Override
public String getStringValue(Product product, int position) {
return product.HouseID;
}
});
dict.addStringField(R.id.Desc, new StringExtractor<Product>() {
#Override
public String getStringValue(Product product, int position) {
return product.Desc;
}
});
FunDapter<Product> adapter = new FunDapter<>(
ListActivity.this, productList, R.layout.layout_list, dict);
lvProduct = (ListView)findViewById(R.id.lvProduct);
lvProduct.setAdapter(adapter);
lvProduct.setOnItemClickListener(this);
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//do sth
}
public void berk(View v) {
//do sth
}
Note:Also when i give clickable attribute to texts in xml they stop working.Like When i play with layout XML everything stops working.

In Adapter Class
public View getView(final int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater();
View row = inflater.inflate(R.layout.vehicals_details_row, parent, false);
Button deleteImageView = (Button) row.findViewById(R.id.DeleteImageView);
deleteImageView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
//...
}
});
}
But you can get an issue - listView row not clickable. Solution:
make ListView focusable android:focusable="true"
Button not focusable android:focusable="false"

First of all if u are using button or edit text in your adapter or row file Then every thing will get stop working .
You should use
1.Set descendant Focusablity="before Descendants" in the list view.
2.Set window Soft Input Mode="adjust Pan" in the manifest
3.Set list view.set Items Can Focus(true)

you have to give separate click event for all views.
Your ImageButton has android:clickable="true" which makes sub view clickable. But you other views are not clickable.
Solution
For click event in textview
textView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
//...
}
});
similar for Imagebutton
remove
android:clickable="true"
hope it helps.

Accessing all views of list_item in listview android

I have two textviews and one imageview in my list_item_layout I want to perform some operations on each view when clicked.How do I do it?Also i have to perform delete action when long pressed on list item 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="100dp"
android:background="#drawable/rectangle_shadow"
android:orientation="horizontal">
<TextView
android:id="#+id/t1"
android:layout_width="match_parent"
android:fontFamily="monospace"
android:minHeight="30dp"
android:layout_height="wrap_content"
android:textSize="20sp" />
<TextView
android:layout_margin="2dp"
android:id="#+id/t2"
android:layout_gravity="center_vertical"
android:textStyle="italic"
android:layout_width="0dp"
android:layout_weight="0.4"
android:layout_height="wrap_content" />
<ImageView
android:id="#+id/word_list_popup_menu_button"
android:layout_width="50dp"
android:layout_height="50dp"
android:padding="10dp"
android:layout_marginRight="10dp"
android:layout_gravity="center_vertical"
android:alpha="0.5"
android:background="#null"
android:src="#drawable/ic_more_vert_black_24px" />
</LinearLayout>

Set OnClickListener for each of this views in getView() method of your adapter:
public View getView(int position, View convertView, ViewGroup viewGroup) {
ViewHolder viewHolder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.list_item_layout, parent, false);
viewHolder = new ViewHolder();
viewHolder.t1 = convertView.findViewById(R.id.t1);
viewHolder.t1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
viewHolder.t2 = convertView.findViewById(R.id.t2);
viewHolder.t2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
viewHolder.word_list_popup_menu_button = convertView.findViewById(R.id.word_list_popup_menu_button);
viewHolder.word_list_popup_menu_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
return convertView;
}
static class ViewHolder {
TextView t1;
TextView t2;
ImageView word_list_popup_menu_button;
}

If you follow the guides outlined for RecyclerView, they'll explain how you bind to your layout and the views you're interested in using ViewHolders. This is because of the fundamental way RecyclerViews (and ListViews) work - they don't hold all their items at once, instead they re-use views to increase performance.
All that's in the guides though, that's where I and everyone else learned it from!

Getting listView child on itemClicked

listView.setOnItemClickListener(new OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
//Get childViews here and set their click listener from here not from adapter
// something like view.forward_icon.setOnClick(...)
}});
I simply like to get the ListView item childs here and set their text or put an event from here not from adapter. can someone guide me how to do this. I have done it before but forget to use the technique. here is my item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/relative"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dp" >
<RelativeLayout
android:id="#+id/items"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/listview_bg"
android:padding="5dp" >
<TextView
android:id="#+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="Mote"
android:textColor="#android:color/white"
android:textSize="18sp" />
<TextView
android:id="#+id/date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/name"
android:padding="5dp"
android:text="20 March 2015 17:00 to 21:00"
android:textColor="#android:color/white" />
<ImageView
android:id="#+id/forward_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_margin="3dp"
android:src="#drawable/forward_icon" />
</RelativeLayout>
</RelativeLayout>
I want to get the forward_icon here and set an onclickListener from here. I can do it from adapter but due to some accessibility issues . I want to do it like this.

Try the following:
int childcount = listView.getChildCount();
for (int i=0; i < childcount; i++){
View v = ll.getChildAt(i);
}
And then set the OnClickListener for each View, hope it helps

What about:
ImageView imageView = view.findViewById(R.id.forward_icon);
imageView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
EDIT: actually combine that with zozelfelfo's answer:
int childCount = listView.getChildCount();
for (int i=0; i < childcount; i++){
View view = listView.getChildAt(i);
ImageView imageView = view.findViewById(R.id.forward_icon);
imageView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
}
});
}

I have remember the solution by seeing the answer of #zozelfelfo and the other answer too.
The correct way of achieving the functionality is
listView.setOnItemClickListener(new OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
TextView tv = (TextView)view.findViewById(R.id.item_title);
// you can also get other listView item childs like this...
tv.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
Toast.makeText(context, "Title is Clicked", Toast.LENGTH_LONG).show();
}
});
}});

How To make Buttons Clickable in ListView Header

I have two buttons in ListView Header and I want to detect button is clicked from the header. how can I do this..
here is my code:
header_list.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/b1" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/b2" />
</LinearLayout>
in java code I have done this
LayoutInflater inflater = LayoutInflater.from(this);
View mTop = inflater.inflate(R.layout.header_list, null);
listview.addHeaderView(mTop);

You can add listener to these buttons.
btnB1 = (Button) mTop.findViewById(R.id.b1);
btnB1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// Your code.
}
})

LayoutInflater inflater = LayoutInflater.from(this);
View mTop = inflater.inflate(R.layout.header_list, null);
listview.addHeaderView(mTop);
Button _btnb1 = (Button) mTop.findViewById(R.id.b1);
_btnb1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// Your code.
}
});
Button _btnb2 = (Button) mTop.findViewById(R.id.b2);
_btnb2.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// Your code.
}
});
Try this code