How to get the new NavigationView to play nice with status bar scrim?

Question

I've been playing with Google's new design support library and it's a blast! I'm just a little stumped though on the navigation view. All the things I read say that the NavigationView is smart enough to handle transparent scrim on its own. (The android-developers post, for one; search for scrim). Anyway, when I tried to do it I get the following result:

Which is great; Exactly what I want. Except for one thing. When the drawer is closed, the scrim is an ugly dark grey, not my primaryColorDark . . .

Here's my layout:

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true" >

<android.support.design.widget.CoordinatorLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <LinearLayout
        android:id="@+id/linear_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <include layout="@layout/toolbar" />

        <fragment
            android:id="@+id/fragment"
            android:name="com.gmail.rixx.justin.envelopebudget.HomeFragment"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            tools:layout="@layout/fragment_home" />

    </LinearLayout>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_gravity="end|bottom"
        android:layout_margin="@dimen/fab_margin"
        app:backgroundTint="@color/accent"
        android:src="@drawable/ic_add_white_24dp" />

</android.support.design.widget.CoordinatorLayout>

<android.support.design.widget.NavigationView
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    app:headerLayout="@layout/drawer_header"
    app:menu="@menu/drawer" />

</android.support.v4.widget.DrawerLayout>

The Activity code:

public class Home extends ActionBarActivity {

    private Toolbar mToolbar;
    private DrawerLayout mDrawerLayout;
    private Context mContext = this;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);

        setUpToolbar();
        setUpNavDrawer();

        findViewById(R.id.fab).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(mContext, NewTransactionActivity.class));
            }
        });
    }

    private void setUpToolbar() {
        mToolbar = (Toolbar) findViewById(R.id.toolbar);
        if (mToolbar != null) {
            setSupportActionBar(mToolbar);
        }
    }

    private void setUpNavDrawer() {
        if (mToolbar != null) {
            mDrawerLayout = (DrawerLayout)     findViewById(R.id.drawer_layout);

            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
            mToolbar.setNavigationIcon(R.drawable.ic_menu_white_24dp);
            mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mDrawerLayout.openDrawer(GravityCompat.START);
                }
            });
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_home, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

And v21/styles:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="AppTheme" parent="AppTheme.Base">
        <item name="android:colorPrimary">@color/primary</item>
        <item name="android:colorPrimaryDark">@color/primary_dark</item>
        <item name="android:colorAccent">@color/accent</item>
        <item name="android:textColorPrimary">@color/primary_text</item>
        <item name="android:textColorSecondary">@color/secondary_text</item>

        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
        <item name="android:statusBarColor">@android:color/transparent</item>

    </style>
</resources>

I modeled after Chris Banes's CheeseSquare app on github but I'm not getting the behavior I want.

I've tried removing the windowDrawsSystemBarBackgrounds and statusBarColor from v21/styles, and I get the proper color, but the status bar never goes transparent:

Help would be appreciated. This is new stuff, So I know we're all learning.

Thanks for reading!

-Justin

Answer 1

After struggling with this for several more hours, and copiously comparing my code to the cheesesquare app, I found the following: The DrawerLayout must have the attribute android:fitsSystemWindows="true", and the NavigationView as well, but the CoordinatorLayout should not. Once I made those changes, it worked.

Thanks all, and hopefully this is helpful to somebody!

You can look at my code for the layout here.

-Justin

Answer 2

set this to your navigationView android:fitsSystemWindows="false"

Answer 3

You should check newer SDK examples.

actually they are using Coordinatorlayout in activity that you want to draw under statusbar and have different theme for that layout, because if you put transparent statusbar for other activities where you don't have root layout Coordinatorlayout it will show white uncolored statusbar.