CODEWITHSUNDEEP
androidandroid-listviewbaseadapterlistviewitem
dotsa
dotsa

Reputation: 941

Android Listview items click

I have a listview with a custom BaseAdapter that fills listview items from json/internet.

In each listview item i have a pseudo buttons(FrameLayouts) with on click event attached to them. When "MAYBE" is clicked for example, I make a call to a server and change event status to "Maybe". After call comes back with success, I would like to change FrameLayouts background to appropriate color (Orange for Maybe).

Where i am having difficulty is to reference other/neighboring FrameLayouts so i can change their backgrounds to "neutral".

enter image description here

All of my events are in BaseAdapter and i set onClick event in GetView method.

My question is: Is there a better way/ how to setup onclick event for each FrameLayout so clicked FrameLayout is aware on click event of other neighboring FrameLayouts so i can change their background to neutral and selected background to respected color.

Thanks.

Upvotes: 2

Views: 457

Answers (4)

Kayron Cabral
Kayron Cabral

Reputation: 68

You can use a selector to manipulate the state of the view

1) Create a selector to set the colors and states

<?xml version="1.0" encoding="utf-8"?>
   <selector xmlns:android="http://schemas.android.com/apk/res/android" >
       <item android:drawable="@android:color/black" android:state_selected="false"/>
       <item android:drawable="@android:color/white" android:state_selected="true"/>
   </selector>

2) On background set the selector 

<FrameLayout 
    ...      
       android:clickable="true"
       android:background="@drawable/selector_view">
   </FrameLayout>

3) In the code part try to play with this

@Override
   public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
       view.setSelected(true);
       ...
   }

Upvotes: 1

Ibrahim Yildirim
Ibrahim Yildirim

Reputation: 2771

in your XML add theese attibutes to your FrameLayout(Button)

android:clickable="true"
android:onClick="onMaybeClick"

Then in your baseAdapter getView() method you find the FrameLayout by

FrameLayout maybeBtn = (FrameLayout)convertView.findViewById(R.id.list_item_maybe_btn);
maybeBtn.setTag(4257 + postion);

You can also set the maybeBtn onClickable in the getView() instead of XML, the same goes for the clicklistener.

In your activity you can the create a onButtonClick(View v) method

public void onMaybeClick(View v)
{
   int position = (Integer)((FrameLayout)v).getTag() - 4257; //To get the position of the click

   LinearLayout parent = (LinearLayout)v.getParent();

   FrameLayout btnYes = (FrameLayout)parent.getChildAt(0); //first button
   FrameLayout btnNo = (FrameLayout)parent.getChildAt(2); //second button

   ServerCallback(new requestListener(){
       ifSuccess(){
           v.setBackground(...);
       }
   ]);
}

Upvotes: 0

SuppressWarnings
SuppressWarnings

Reputation: 4182

Register the same onClickListener() for every item in the row.

Implement the onClickListener() to the BaseAdapter class, and place logic there in such a way that if MAYBE was clicked, loop every List<Item> itemList of your ListView, set a boolean value (for example otherSelected) to true for each one of them, then invalidate() the ListView, and make sure that for the getView() callback you handle those Items with otherSelected set to true, and change their view background before returning them.

Upvotes: 0

intrepidkarthi
intrepidkarthi

Reputation: 3102

Do this inside your adapter getView() method. So it is going to applied to all the ListView items currently on View

// change the row color based on selected position
if(selectedItem == position){
    layout.setBackgroundColor(Color.WHITE);
}
else
{
    layout.setBackgroundColor(Color.BLACK);
}

Upvotes: 0

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