Change Status Bar to Custom Drawable

Change the Android statusbar to a custom drawable on Lollipop devices.

by Napalm.

StatusBarView

public class StatusBarView extends View
{
	private int mStatusBarHeight;

	public StatusBarView(Context context)
	{
		this(context, null);

	}

	public StatusBarView(Context context, AttributeSet attrs)
	{
		super(context, attrs);
		if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
			setSystemUiVisibility(SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
		}
	}

	@Override
	public WindowInsets onApplyWindowInsets(WindowInsets insets)
	{
		if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
			mStatusBarHeight = insets.getSystemWindowInsetTop();
			return insets.consumeSystemWindowInsets();
		}
		return insets;
	}

	@Override
	protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
	{
		setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec),mStatusBarHeight);
	}
}

Values-v21.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

	<style name="AppTheme" parent="BaseAppTheme">
		<item name="android:windowDrawsSystemBarBackgrounds">true</item>
		<item name="android:statusBarColor">@android:color/transparent</item>
	</style>

</resources>

activity_main.xml

<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"
	tools:context=".MainActivity"
	>
	<com.example.StatusBarView
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:background="@drawable/top_gradient"
		/>
        <!--etc -->
</LinearLayout>

top_gradient.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
	android:shape="rectangle"
	>
	<gradient
		android:type="linear"
		android:startColor="#ff7300"
		android:centerColor="#77000000"
		android:endColor="#000000"
		android:centerX="0.5"
		android:centerY="0.3"
		android:angle="0"
		/>
</shape>

//… etc …