How to set ImageButton property of app:srcCompat="@drawable/pic" programmatically?

Question

How to set the ImageButton property of

app:srcCompat="@drawable/pic"

programmatically?

Something like myImageButton.setBackgroundResource(R.drawable.eng2); but the property of app:srcCompat.

Rash

Answer 1

You need to use setImageResource() method.

imageButton.setImageResource(R.drawable.eng2);

Uplift

Same for Kotlin – Justicz

does that mean that we dont use srcCompat changes on xml? – Deodorant

Answer 2

First, ensure you are dealing with AppCompatImageView, not regular ImageView:

AppCompatImageView iv = (AppCompatImageView)findViewById(....);

and then you can do:

iv.setImageResource(R.drawable.pic);

See other public methods in docs.

Heaton

I'm using 'ImageButton' with 'app:srcCompat="@drawable/pic"' but setting to 'setImageResource(R.drawable.pic);' works fine. Thank you – Rash

build tools are probably replacing classes "in fly" – Wilkes

hey Marcin, do you know why we need to programmatically change the image instead of giving the path between app:srcCompa="drawable/" – Bastogne

I want to add to this answer, I had to use AppCompatImageButton instead of ImageButton. – Concoct

@Concoct That probably because you the activity where the view was inflated didn't extend AppCompatActivity – Hominoid

@AndreRomano no, my subview was created inside a class which extends relative layout. – Concoct

Answer 3

Using setImageResource() should fetch its resource in a backwards-compatible manner without any further effort required.

However if you are using setImageDrawable(), the ImageView/ImageButton will not help with any backwards compat and it's up to you to supply a backward-compat drawable, which is important for eg. if using VectorDrawables. The following will load and set a drawable in such a way:

val drawable = AppCompatResources.getDrawable(context, resourceId)
image.setImageDrawable(drawable)

Dative

For ImageButtons, its working – Raptorial

Answer 4

None, of the provided solutions worked for me. I was using an ImageView. Finally, I found out that using setBackgroundResource() works for me.

view.setBackgroundResource(R.drawable.ic_star_black_18dp)

Scornful

Answer 5

I guess other methods are outdated and wouldn't work at the time of writing this,

iv_yourImageView.setImageDrawable(getResources().getDrawable(R.drawable.your_drawable));

This will work.

Winfrid