How to change searchview icon color?

I know there's already a lot of answers for this question here, and I wouldn't be creating another thread if I hadn't already tried everything I saw here. Anyway, the question is pretty simple. I don't mind if the solution comes from XML styling or Java code (both solutions are welcome). I will show everything (most of it anyway) I've tried to solve it.

First of all, the searview icon seems to be immutable by code since I can't change anything from it. My searchview is declared in menu.xml as this

<item android:id="@+id/icon_search"
    android:title="Searchador"
    android:icon="@drawable/ic_search_black_24dp" <!-- icon not used by searchview anyway -->
    android:showAsAction="always"
    android:actionViewClass="android.widget.SearchView"
/>

and inside my onCreateOptionsMenu I have this

SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
searchMenuItem = menu.findItem(R.id.icon_search);
searchView = (SearchView) searchMenuItem.getActionView();
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setSubmitButtonEnabled(false);
searchView.setOnQueryTextListener(this);
MenuTint.colorIcons(this, menu, Color.BLUE);
return true;

The MenuTint.colorIcons(this, menu, Color.BLUE); I got from a special class I found here where it basically changes all my icons color, unfortunately not working for the searchview icon.

I then found some answers suggesting to use a style like this

<style name="SearchViewStyle" parent="Widget.AppCompat.SearchView">
   <!-- changing my icon, its color and stuff.. -->
   <item name="searchIcon">@drawable/ic_search</item></style>

but I was getting the No resource found that matches the given name 'Widget.AppCompat.SearchView'. error.

I then found that I should add the android-support-app-compat project library instead of just the .jar. It didn't work. I mean, the import worked, but the error kept showing. Then, I found somewhere that I should change the project.properties from target=android-19 to 21 (or higher) but it didn't solved the "No resource found" error.

So I'm pretty much stuck for this simple detail where I need to change the searchview color.

Also, this is not exactly the same question, but I believe it might be solved the in the same way so I will include here: I wanted to change distance between the icons. Someone suggested this solution

<style name="ActionButtonStyle" parent="AppBaseTheme">
    <item name="android:minWidth">0dip</item>
    <item name="android:paddingLeft">0dip</item>
    <item name="android:paddingRight">0dip</item>                  
</style>

but I end up getting this

As you can see, this approach works for my custom icons only, but not for the searchview icon, neither for the menu overflow icon. I would like to change the distance between ALL icons equally.

If you want to change SearchView's search icon, you just need to get the image view within the view as follow:

searchView = v.findViewById(R.id.searchView);
//change icon color
ImageView searchIcon = searchView.findViewById(android.support.v7.appcompat.R.id.search_button);
searchIcon.setImageDrawable(ContextCompat.getDrawable(getActivity(),R.drawable.ic_search_icon));

It is important that the icon is R.id.search_button and you can replace it with a white vector asset that you provide, in this case R.drawable.ic_search_icon

Similarly, you can change the text within the SearchView as follows:

//set color to searchview
SearchView.SearchAutoComplete searchAutoComplete = searchView.findViewById(android.support.v7.appcompat.R.id.search_src_text);
searchAutoComplete.setHintTextColor(getResources().getColorandroid.R.color.white));
searchAutoComplete.setTextColor(getResources().getColor(android.R.color.white));