clickable listview for activity switching

Question

I am using listviews instead of button in my application. I want to set OnClickListener() on listview instead of setOnItemClickListener(). here is my code:

listview.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            startActivity(new Intent(getApplicationContext(), BillingActivity1.class));
        }
    });

can someone suggest a method to do OnClickListener()?

thank you

Answer 1

Ok, I understood your problem.

Lets analyze cases:

Listview with items

If your ListView has some items, the good approach is to set anyway an onItemClickListener and, based on which item has been clicked, do something. You can also do the same thing for each item without considering which item has been pressed, but this is still the best approach.

ListView with no items

From Docs:

the list view will be hidden when there is no data to display.

ListView (usually) has the height set to wrap_content, so even setting the onClickListener on an empty list won't work since the list will result having height of 0, being not able to be clicked (you can't click a view with no height since it is not visible).

Perform actions on an empty ListView

If, as it looks like, you need to do some stuffs on your ListView even if it's empty, just add a Button or a FloatingActionButton to your Activity and then use those: you can both keep the button in any case (like an "Add item" Button) or you can make it visible only if the ListView is empty. something like:

xml

<Button
     android:id="@+id/buttonEmptyListStuffs"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:text="List is empty, click me!"
     android:visibility="gone"/>

activity

//init the button and do other stuffs
...
buttonEmptyListStuffs.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
       //go to activity 2
    }
});
...
List<MyListViewItem> myListViewItems = //init your list of items for the listView
buttonEmptyListStuffs.setVisibility(myListViewItems.size() > 0 ? View.GONE : View.VISIBLE);
...

Note: I wrote this code by hand without compiler so it might not be perfect, just take the concept behind it

As Pskink said from comments

I forgot to mention that ListView has setEmptyView(View) which allows you to set a custom layout for the Listview if it is empty. Refer to his link for a good tutorial