android - Translucent status bar and toolbar

Question

I'd like to integrate something like this:

And I've done it like this, but I can't seem to put the imageview below the toolbar. Without the toolbar, I can make it under the status bar, but combining these two are impossible.

Here's my layout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:fitsSystemWindows="true"
    tools:context="com.project.android.PhotoActivity">

    <android.support.v7.widget.Toolbar
        android:id="@+id/photo_tl"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="#59000000"
        tools:ignore="UnusedAttribute" />

    <ImageView
        android:id="@+id/photo_image"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:adjustViewBounds="true"
        android:scaleType="fitStart" />


</LinearLayout>

In my activity, I've done the following:

  getWindow().getDecorView().setSystemUiVisibility(
            View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);

I've also declared an styles-v21.xml file:

<style name="Project.Photo" parent="Project.Light">
    <item name="android:windowDrawsSystemBarBackgrounds">true</item>
    <item name="android:statusBarColor">#59000000</item>
</style>

And set it as default style for PhotoActivity. I've already tried putting the toolbar in a FrameLayout, but doing that my toolbar simply hides, like this:

Thanks in advance.

Got that fixed, but toolbar is overlapping the status bar. Is there anyway to fix the padding? If I use android:fitsSystemWindows="true", status bar isn't translucent anymore.

Answer 1

I would remove the Toolbar from your layout and use an implementation of an ActionBar from the AppCompat.Theme:

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

Then, I would create a new style for the semi-transparent ActionBar (in values/styles.xml:

<style name="AppTheme.Transparent" parent="AppTheme">
    <item name="windowActionBarOverlay">true</item>
</style>

And in v21/styles.xml:

<style name="AppTheme.Transparent" parent="AppTheme">
    <item name="windowActionBarOverlay">true</item>
    <item name="android:windowTranslucentStatus">true</item>
</style>

I assume, that your Activity extends AppCompatActivity so then in onCreate() you can call:

For enabling a back button:

getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);

For setting your translucent color:

getSupportActionBar().setBackgroundDrawable(new ColorDrawable(ContextCompat.getColor(this, R.color.yourTranslucentColor)));

For removing your ActionBar title:

getSupportActionBar().setDisplayShowTitleEnabled(false);

What is more, I would change your root LinearLayout to CoordinatorLayout as it gives you more control over your layouts (it's a more powerful FrameLayout).

The color which I used is:

<color name="yourTranslucentColor">#29000000</color>

Of course you should remember to apply this theme to your Activity in the AndroidManifest.xml:

<activity
    android:name=".ui.activity.YourActivity"
    android:theme="@style/AppTheme.Transparent">
</activity>

By doing all these steps you should get something like this:

Please let me know, if it works for you.