How to make view pager of images as free market app and others

I was able to resolve my issue based on @Wakim's response and comments. I suggest first reading his post and then see my code. The Layout really looked good as the "WhatsApp" on a contact's profile screen.

Below is the code to get Layout the way I wanted it (slightly different from the "eBay")

<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout
    android:id="@+id/app_bar_layout"
    android:layout_width="match_parent"
    android:layout_height="300dp"
    android:fitsSystemWindows="true"
    android:theme="@style/AppTheme.AppBarOverlay">

    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/collapsing_toolbar"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        app:contentScrim="?attr/colorPrimary"
        app:expandedTitleMarginBottom="32dp"
        app:expandedTitleMarginEnd="64dp"
        app:expandedTitleMarginStart="48dp"
        app:layout_scrollFlags="scroll|exitUntilCollapsed">

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fitsSystemWindows="true">

            <android.support.v4.view.ViewPager
                android:id="@+id/pager"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fitsSystemWindows="true"
                app:layout_collapseMode="parallax"/>

            <com.viewpagerindicator.CirclePageIndicator
                android:id="@+id/pagerIndicator"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:padding="10dp"
                android:layout_gravity="center|bottom"
                android:fitsSystemWindows="true"
                android:layout_marginBottom="16dp"/>

        </FrameLayout>

        <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:id="@+id/nestedScrollView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

    <FrameLayout
        android:id="@+id/fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

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

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="@dimen/fab_margin"
    android:clickable="true"
    android:src="@drawable/ic_image_photo_camera"
    app:layout_anchor="@id/app_bar_layout"
        app:layout_anchorGravity="bottom|right|end"/>

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

Every detail in this code is important, even the order of Toolbar , Padding of CirclePageIndicator , etc.

Thanks @Wakim for the help.

Credits:

Starting from the beginning, google's new library, Design Library , brings several components ready with some common Material Design interactions.

Just include the library as a dependency on your build.gradle :

compile 'com.android.support:design:23.1.0'

# Outras dependencias implicitas...
compile 'com.android.support:appcompat-v7:23.1.0'
compile 'com.android.support:support-v4:23.1.0'
compile 'com.android.support:recyclerview-v7:23.1.0'

Only here comes the surprise ... Along with Design Library comes other 3 that it also depends ... If you already use them, no problem. But you can overhead your app if you do not use them.

In addition, to implement the indicators I recommend using the ViewPagerIndicator of Jake Wharton.

With this, the dependency has to be included as well:

compile 'com.viewpagerindicator:library:2.4.1@aar'

But as JakeWharton did not publish his library as an AAR, you need to include the following repositories to your project after the declaration of plugins:

repositories {
    maven { url "http://dl.bintray.com/populov/maven" }
    mavenCentral()
}

Following the Antonio Leiva's tutorial on CollapsingToolbarLayout

Let's have the following layout (well boilerplate: /):

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/app_bar_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        android:fitsSystemWindows="true">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginStart="48dp"
            app:expandedTitleMarginEnd="64dp"
            android:fitsSystemWindows="true">

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                app:layout_collapseMode="pin" />

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <android.support.v4.view.ViewPager
                    android:id="@+id/pager"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:fitsSystemWindows="true"
                    app:layout_collapseMode="parallax" />

                <com.viewpagerindicator.CirclePageIndicator
                    android:id="@+id/indicator"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="bottom"
                    android:layout_marginBottom="16dp" />
            </FrameLayout>

        </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">

        <FrameLayout
            android:id="@+id/fragment_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    </android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>

Some comments:

• For the scrolling effect to work, you need to use components with the Nested Scroll function. I know only 2: NestedScrollView and RecyclerView . I do not know if ListView or GridView works well without any customization.

• Some components have some "crashes" during the Scroll, if this happens, I recommend the library smooth-app-bar-layout that provides the same components with behavior improvements.

I think the setup of ViewPager is known, but below is how to connect CirclePageIndicator and ViewPager :

ViewPager pager = (ViewPager) findViewById(R.id.pager);

pager.setAdapter(...);

CirclePageIndicator circleIndicator = (CirclePageIndicator) findViewById(R.id.indicator);
circleIndicator.setViewPager(pager);

Edit: Some feedback adjustments:

1) Addition of layout_gravity="bottom" and layout_marginBottom="16p" in CircleViewIndicator .

2) Change from android:layout_height from CollapsingToolbarLayout to android:layout_height="wrap_content" .

There are good references to the new components:

• link
• link