ImageButton on the recyclerview - android

[When click on the button which is marked as circular line of image 1 then next functionality will be happen which is second image 2

is what you want to happen is that when you click the image button that row layer will hide?

You can add a layout at runtime using below snippet onClick of button.
LayoutInflater layoutInflater = getLayoutInflater();
View row = layoutInflater.inflate(R.layout.row, null);
ViewGroup main = (ViewGroup) findViewById(R.id.child_layout);
main.addView(row, 0);
R.layout.row is the row which you want to add on click of arrow.
R.id.child_layout will be an empty LinearLayout placeholder in your parent xml in which above row will be added.
You might want to look at various implementation of addView(), as it is overloaded with various parameters.
You can use removeView to remove the view as well.
There is one more option in which you can the add the row as part of layout set its visibility as GONE
e.g.
mainLayout.setVisibility(LinearLayout.GONE);
mainLayout.setVisibility(LinearLayout.VISIBLE);
And then you register or deregister click listeners.

Related

Adding tags and listeners to the views of a multiple times inflated XML

I am actually developing an android application which needs to inflates many times the same XML layout.
This layout contains 2 buttons, some textViews and a progressBar which I'll need to update later. I would like to add onClick listeners to the buttons and to set custom tags with setTag() to all of these elements, so I will be able to know which button has been clicked and to modify the right textView (or progressBar).
I inflate the XML with this code :
LinearLayout countersList = (LinearLayout)findViewById(R.id.countersLayout);
View child = getLayoutInflater().inflate(R.layout.counter, null);
countersList.addView(child);
How can I access to the right view to set the tag and to add listeners? Is there a better way to do what I want to do ?
Thank you very much !
As far as how to tag or add onClick listeners to your views: You can add an ID to the views you want to tag and find them using findViewById. For example,
LinearLayout countersList = (LinearLayout)findViewById(R.id.countersLayout);
ViewGroup child = (ViewGroup) getLayoutInflater().inflate(R.layout.counter, null);
child.findViewById(R.id.myButton).setTag("myTagForTheButton");
countersList.addView(child);
On the second question, I'm not sure what your UI looks like, but many repeated views might call for using a ListView.
There is no problem of setting tags and listener
LinearLayout countersList = (LinearLayout)findViewById(R.id.countersLayout);
View child = getLayoutInflater().inflate(R.layout.counter, null);
child.setTag("YourString");
// Similarly
view.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
}
});
countersList.addView(child);
If you want it for some of its child you can also do it using findViewById
you can user view.setTag(key, tag) to many tags.
ex:
view.setTag("right_view", rightView);

Append new item to LinearLayout programmatically?

I'm trying to create something like editable UITableView on iPhone.
I added a button to add new items at the end of the list which would be the equivalent of the "+" button on iphone, this takes user to a list of items to add. My problem is that when they select one I don't know how to add it to the list.
<LinearLayout
android:key="application_preferences"
android:title="Applications">
</LinearLayout>
How can I append a view inside the LinearLayout programatically?
You can use addView to add a child view to a ViewGroup, but also consider just using ListView instead of a LinearLayout.
Your question is not very clear but if you try to add a view to the linear layout programmatically just use Layout Inflater
LayoutInflater localLayoutInflater =(LayoutInflater)getBaseContext().getSystemService("layout_inflater");
View myView = localLayoutInflater.inflate(R.layout.custom_layout, null);
final LinearLayout ll=(LinearLayout)findViewById(R.id.linearlayoutID);
ll.addView(myView);

set LayOut Dynamically

i want to add Layout Dynamically on Add button click and on Dynamic Layout show Datepicker,Timepicker Dialog and set value in given Edit Text. show in image on Date Click set Date Right side . Here problem Start when Add Second Same layout and set date it set only on newly created layout
For example you need to create xml layout file with ScrollView and LinearView inside.
Then in your Activity class:
LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View main = inflater.inflate(R.layout.your_layout, null);
setContentView(main);
LinearLayout linear = (LinearLayout)main.findViewById(R.id.linear_layout);
and then in onClick method just:
View yourView = inflater.inflate(R.layout.yourView, null);
// Do whatever you want with your View, set up some variables etc.
and to add your view to main view:
linear.addView(yourView);
I know that this is not a direct answer to your question, but maybe will help you with dynamically adding Views.

Android listview with header and footer buttons

folks!
I need to make such layout: I've got listview and I need to put buttons on top and on the bottom of it, i.e. when user scrolls list to the end, he can see bottom button, and when user is on the top of list, he can see top button. But when user is 'in the middle' of listview, he can't see those buttons. I've got no idea how to do it. Thanks for help.
UPDATE
listView=(ListView)findViewById(R.id.listSearchResults);
LayoutInflater inflater=this.getLayoutInflater();
View header=inflater.inflate(R.layout.list_header, null);
btnBack=(Button)header.findViewById(R.id.btnBack);
btnBack.setOnClickListener(this);
btnBack.setEnabled(false);
listView.addHeaderView(header);
View footer=inflater.inflate(R.layout.list_footer, null);
btnForward=(Button)footer.findViewById(R.id.btnForward);
btnForward.setOnClickListener(this);
btnForward.setEnabled(false);
listView.addFooterView(footer);
First create two layout file. like as footer_layout.xml & header_layout.xml and add footerview-headerview in list view
LayoutInflater inflater = activity.getLayoutInflater();
LinearLayout listFooterView = (LinearLayout)inflater.inflate(
R.layout.footer_layout, null);
list.addFooterView(listFooterView);
LinearLayout listHeaderView = (LinearLayout)inflater.inflate(
R.layout.header_layout, null);
list.addHeaderView(listHeaderView);
You can use addHeaderView() and addFooterView() on your ListView
Check here:
Android Dynamically load Listview at scroll end?
This is with the help of list's footer and header. Basically, you use addHeaderView()
/addFooterView (). Check all versions of the methods, since they allow you to have the view not being selectable.

Android: Add view onclick after the view itself

I have a LinearLayout View with a OnClickhandler and I want to add a View after the LinearLayout programatically when the OnClick event is fired.
public void onClick(View view) {
LayoutInflater li = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LinearLayout info = (LinearLayout) li.inflate(R.layout.infolayer, null);
// view.addViewAfter(info)
}
info is the View i want to add. view is the View on which the click goes and after which I want to add info.
How can I do that?
IF u want add a view after the current linear layout then first get the id of the parent layout in which the linear layout is .
for example let u have the the Linear Layout with id "ll" in relative layout(having id parentlayout) and on a button click u want add the text view under the liner layout
public void onClick(View view) {
RelativeLayout rl=new RelativeLayout(this);
TextView tv=new TextView(this)
//set param value ur requirement
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.BELOW,R.id.ll);
}
Assuming you have a known amount of linearlayouts could you just place them inside the XML resource and mark them as 'GONE'. When the event occurs make them visible. When they are marked as gone they shouldnt be taking any screen space up.
You can insert through coding and you don't need to inflate. You can create a view of any type calling the constructor and passing the context. A reference to the context can be stored on the view as a field, when the view is being constructed. This way you can always create your view on the fly.
To add the view to the LinearLayout, you just need to call addView. And afterwards, if you would want to remove it, just call removeView.
But the onClick event is inside the LinearLayout object? This might be a problem because the views inside the the LinearLayout might consume the event before it reaches your method. See this post to learn about that.

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