How do I add selectableItemBackground to an ImageButton programmatically?

Here is an example using answer here: How to get the attr reference in code?

    // Create an array of the attributes we want to resolve    // using values from a theme    // android.R.attr.selectableItemBackground requires API LEVEL 11    int[] attrs = new int[] { android.R.attr.selectableItemBackground /* index 0 */};    // Obtain the styled attributes. 'themedContext' is a context with a    // theme, typically the current Activity (i.e. 'this')    TypedArray ta = obtainStyledAttributes(attrs);    // Now get the value of the 'listItemBackground' attribute that was    // set in the theme used in 'themedContext'. The parameter is the index    // of the attribute in the 'attrs' array. The returned Drawable    // is what you are after    Drawable drawableFromTheme = ta.getDrawable(0 /* index */);    // Finally free resources used by TypedArray    ta.recycle();    // setBackground(Drawable) requires API LEVEL 16,     // otherwise you have to use deprecated setBackgroundDrawable(Drawable) method.     imageButton.setBackground(drawableFromTheme);    // imageButton.setBackgroundDrawable(drawableFromTheme);

If you are using AppCompat you could use following code:

int[] attrs = new int[]{R.attr.selectableItemBackground};TypedArray typedArray = context.obtainStyledAttributes(attrs);int backgroundResource = typedArray.getResourceId(0, 0);view.setBackgroundResource(backgroundResource);typedArray.recycle();

This works for me with my TextView:

// Get selectable backgroundTypedValue typedValue = new TypedValue();getTheme().resolveAttribute(R.attr.selectableItemBackground, typedValue, true);clickableTextView.setClickable(true);clickableTextView.setBackgroundResource(typedValue.resourceId);

Because I use AppCompat library, I use R.attr.selectableItemBackground not android.R.attr.selectableItemBackground.

I think typedValue.resourceId holds all drawables from selectableItemBackground than using TypeArray#getResourceId(index, defValue) or TypeArray#getDrawable(index) which are retrieve only a drawable at the given index.