GridView By using Custom ArrayAdapter

Question

Maybe I am asking the wrong question just for curiosity. I am creating the custom adapter by extending array adapter. Now I want to display this in GridView. I have gone through many articles and everywhere I found they are using only base adapter to display the GridView. Please guys tell me what is the logic behind this? Can we use Array adapter in place of Base Adapter?

Solution 1

Yes we can. ArrayAdpter itself extends from BaseAdapter. May be this will clear things up http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.3_r2.1/android/widget/ArrayAdapter.java#ArrayAdapter

In-fact if you are just trying to show some stuff in ListView or GridView that doesn't require any complex custom adapter then its easier to just use an ArrayAdapter. Its just an adapter backed by an array of arbitrary objects.

Solution 2

You can certainly use ArrayAdapter in GridView. see this code example

gridView = (GridView) findViewById(R.id.gridView1);

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, numbers);

gridView.setAdapter(adapter);

for more detail

Comments

[rupesh]

my doubt is if i will use custom adapter that is extending Array Adapter , so only in layout file i will have to do the change from ListView to GridView. Am i right??

[M-Wajeeh]

You can use same adapter for either GridView or ListView. So yes you just need to change in layout and as well as where you call setAdapter().

[Azurespot]

But is it possible to load photos into a GridView, using ArrayAdapter? The code you gave uses a simple_list_item_1, which is a TextView layout. I am trying to find a way to use ArrayAdapter but to upload images, no text.

[Adhikari Bishwash]

You can use custom adapter this blog mkyong.com/android/android-gridview-example explains

[Azurespot]

Thanks, but that blog only covers simple text String in a GridView. Images are a whole other thing, as I'm learning, you need a model, and to change things into Bitmap, etc... :(