Develop Reference

how to show and hide buttons in listView

As shown in the image when I click on an item in the list view. Buttons show up.
I want to hide buttons when I click on different items and show on current clicked item.
How can I make it work?

Need to preserve view into a variable like prevView. and then click on another item.
Check whether prevView is null or not. If not null. then get button id .
e.g. prevView.findViewById();
and Make their visibility.GONE. and also null prevView.
I hope this will help you.

You can achieve this by making a model class.
take variable for particular buttons in Model. after clicking on a different item set true/false tag in the model and show/hide view according to that tag.

You should be using an expandable ListView so that you can get the buttons shown when you tap on the list item and it get closed when you tap on the other item in the list.

expandable list view with checkbox for group and child

I have no idea on expandable list view concept in android. Above is the image i want to create. When user clicks on it, it should expand with child having check box. Even the group should have check box. When i click on group check box, all the child check box should be selected. I checked other posts they are using it in activity. How to implement this in a dialog? Thanks in advance.

How to implement this in a dialog?
You can create a Dialog using a DialogFragment and override onCreateView(). This allows you as much freedom with the Dialog UI as you have in any Activity, so the other SO posts you read will be very helpful there.
To get you started, see this guide on dialogs.

Open a menu with a List when I click in a view

I'd like to show a menu when I click in a view (Linear/RelativeLayout) like the images below
Anybody knows how to do it?
Thanks!

The UI-Element you're looking for is called a Spinner (Docs). As far as I know the default implementation of the Spinner/Dropdown-List displays only text without any kind of drawable (circle) like in your screenshot.
So what you have to do is to create you own layout and Adapter for the Spinner.

The view you are looking for is called Spinner. Android has excellent documentation about this subject.
If you want the spinner to go up, like in your picture, you will have to place it at the bottom of your view, since it will only go up if there is no room below

You should use the Spinner view
If you would like to customize the view elements, than you should change the default ArrayAdapter to yours and override the getView() method.

Android: Show Listview when clicking on EditText

I don't know if this is the right method but I would like to know if is it possible to show a Listview when the user clicks on an EditText/TextView and show afterwards the selected item text in this EditText. I know how to declare the EditText in the layout but is there any example of when clicking on the listener show the ListView? Do I need to add this Listview in the XML layout or do I have to add it programatically?
Thank you

if your app wants to have a sort of text viewand when you click on it you need to show up a list view then you can use expandable list view check this tutorial
http://theopentutorials.com/tutorials/android/listview/android-expandable-list-view-example/

Sorry, a I was looking just for a Spinner, I thought that it was another type of ListView

Edit Text which gives suggestions from the list view under it

In my Android app, I have this screen where the top part is a search box kind of thing and below it there is a ListView. Now the requirement is that when a user starts typing something in the search box I have push up items from the list view which match that pattern.
I have thought of using Auto Complete TextView, but that does not help because the items displayed must be in the list view itself where they can be clicked. They just need to be pushed up the list when they match the pattern of text typed in the Search box above.
How to achieve this ?
Please Help.

use addTextChangedListener in EditText to get user interactin with EditText and update the ListVIew using notifyDataSetChanged();. Try to use Handler