Android CollapsingToolbarLayout

collapsing toolbar

	<?xml version="1.0" encoding="utf-8"?>
	<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
	android:layout_height="match_parent"
	android:fitsSystemWindows="true"
	tools:context=".DhikrActivity">
	<android.support.design.widget.AppBarLayout
	android:id="@+id/app_bar"
	android:layout_width="match_parent"
	android:layout_height="160dp"
	android:fitsSystemWindows="true"
	android:theme="@style/AppTheme.AppBarOverlay">
	<android.support.design.widget.CollapsingToolbarLayout
	android:id="@+id/toolbar_layout"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:fitsSystemWindows="true"
	app:contentScrim="?attr/colorPrimary"
	app:layout_scrollFlags="scroll|exitUntilCollapsed">
	<ImageView
	android:id="@+id/expandedImage"
	android:layout_width="match_parent"
	android:layout_height="200dp"
	android:scaleType="centerCrop"
	android:src="@drawable/dhikr"
	app:layout_collapseMode="parallax"
	app:layout_collapseParallaxMultiplier="0.7" />
	<android.support.v7.widget.Toolbar
	android:id="@+id/toolbar"
	android:layout_width="match_parent"
	android:layout_height="?attr/actionBarSize"
	app:layout_collapseMode="pin"
	app:popupTheme="@style/AppTheme.PopupOverlay" />
	</android.support.design.widget.CollapsingToolbarLayout>
	</android.support.design.widget.AppBarLayout>
	<android.support.v4.widget.NestedScrollView
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	app:layout_behavior="@string/appbar_scrolling_view_behavior">
	<android.support.v7.widget.RecyclerView
	android:id="@+id/rec_dhikr"
	android:layout_width="match_parent"
	android:layout_height="wrap_content">
	</android.support.v7.widget.RecyclerView>
	</android.support.v4.widget.NestedScrollView>
	</android.support.design.widget.CoordinatorLayout>
	// Java Parts
	//onCreate() add these two lines
	Toolbar mToolbar = (Toolbar) findViewById(R.id.toolbar);
	setSupportActionBar(mToolbar);

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