Resize Vectordrawable Icon Programmatically

I am showing some VectorDrawable icon dynamically in my android project. However, I couldn't scale the icons in java layer using the below code: VectorDrawable jDrawable = (Vecto

Solution 1:

jDrawable.setBounds doesn't work because of a bug in android.

One way to overcome the bug is to convert VectorDrawable to Bitmap and display it.

Bitmapbitmap= Bitmap.createBitmap(jDrawable.getIntrinsicWidth(), jDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvascanvas=newCanvas(bitmap);
jDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
jDrawable.draw(canvas);

Then use this bitmap to display something like below. First convert it to BitmapDrawable

BitmapDrawablebd=newBitmapDrawable(bitmap);
buttonsetCompoundDrawablesRelativeWithIntrinsicBounds(bd, null, null, null);

Also in your helper function you can return bd.

To use it on pre-23 API put this in build.gradle

vectorDrawables.useSupportLibrary = true 

Solution 2:

It is much easier for at least API > 21. Assume that we have VectorDrawable from resources (example code to retrieve it):

valiconResource= context.resources.getIdentifier(name, "drawable", context.packageName)
valdrawable= context.resources.getDrawable(iconResource, null)

For that VectorDrawable just set desired size:

drawable.setBounds(0, 0, size, size)

And show drawable in button:

button.setCompoundDrawables(null, drawable, null, null)

That's it. But note to use setCompoundDrawables (not Intrinsic version)!