match_parent doesn't work for custom actionbar

Question

I try to implement a custom action bar. Here is the xml:

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/action_bar">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="test "/>
</FrameLayout>

And here is the java code:

public class CustomActionBarActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        android.support.v7.app.ActionBar actionBar = getSupportActionBar();

        actionBar.setDisplayShowCustomEnabled(true);
        actionBar.setDisplayOptions(android.support.v7.app.ActionBar.DISPLAY_SHOW_CUSTOM);
        actionBar.setDisplayHomeAsUpEnabled(false);
        actionBar.setDisplayShowHomeEnabled(false);
        actionBar.setDisplayUseLogoEnabled(false);

        View customView = getLayoutInflater().inflate(R.layout.action_bar, null);
        actionBar.setCustomView(customView);
        Toolbar parent = (Toolbar) customView.getParent();
        parent.setContentInsetsAbsolute(0, 0);

    }
}

The result is:

Here is the result with "developer options" > "show layout bounds"

Answer 1

As @Muhannad Fakhouri in comment pointed out. I needed to add layout params programatically. Layout params will be ignored if the layout inflated without specifying the parent. Here is the updated code:

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        android.support.v7.app.ActionBar actionBar = getSupportActionBar();

        actionBar.setDisplayShowCustomEnabled(true);
        actionBar.setDisplayOptions(android.support.v7.app.ActionBar.DISPLAY_SHOW_CUSTOM);
        actionBar.setDisplayHomeAsUpEnabled(false);
        actionBar.setDisplayShowHomeEnabled(false);
        actionBar.setDisplayUseLogoEnabled(false);

        View customView = getLayoutInflater().inflate(R.layout.action_bar, null);
        customView.setLayoutParams(new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));
        actionBar.setCustomView(customView);
        Toolbar parent = (Toolbar) customView.getParent();
        parent.setContentInsetsAbsolute(0, 0);

    }