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Zoom photo inside viewpager2 - android

I tried to use PhotoِDarweeView inside ViewPager2. When I want to zoom in on the photo horizontally, it does not zoom in and instead the ViewPager2 swipes.
activity_media_view:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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/root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/black"
tools:context=".ui.MediaTopicActivity">
<androidx.viewpager2.widget.ViewPager2
android:id="#+id/viewPager"
android:layout_width="0dp"
android:layout_height="match_parent"
app:layout_constraintBottom_toTopOf="#+id/title"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/header"
tools:background="#drawable/one"
tools:layout_height="300dp" />
<!-- other views -->
</androidx.constraintlayout.widget.ConstraintLayout>
fragment_photo:
<?xml version="1.0" encoding="utf-8"?>
<me.relex.photodraweeview.PhotoDraweeView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" />

I resolved this by enabling nestedScrolling for my viewPager2
<androidx.viewpager2.widget.ViewPager2
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:nestedScrollingEnabled="true" />

Related

I have a Recycler view with the code below, which is working perfectly with all items when the view is accessed directly, but when it is included the RecyclerView is visible but empty
RecyclerView View:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
tools:context=".MainActivity">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/list_items"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/purple_200"
app:layoutManager="LinearLayoutManager"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
Parent View
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
android:gravity="center"
tools:context=".MainActivity">
<include layout="#layout/list_fragment" />
<include layout="#layout/controls_fragment" />
</LinearLayout>
In my list fragment onCreateView function I also have the below code
val context = requireContext()
binding.listItems.layoutManager = LinearLayoutManager(context)
val listItemAdapter = ListItemAdapter(context, items)
binding.listItems.adapter = listItemAdapter

The issues is fixed by using "fragment" instead of "include" in the Parent View.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
android:gravity="center"
tools:context=".MainActivity">
<fragment
android:id="#+id/listFragment"
android:layout_width="match_parent"
android:layout_height="500sp"
android:name="com.example.project.listFragment"
tools:layout="#layout/list_fragment">
</fragment>
<fragment
android:layout_width="match_parent"
android:layout_height="200sp"
android:id="#+id/controlsFragment"
android:name="com.example.project.ControlsFragment"
tools:layout="#layout/controls_fragment">
</fragment>

This is a simple layout and I wanted to add text views and 5 buttons on it but whatever I do those buttons don't appear on the map.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
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">
<!--fragment to display our maps-->
<!--Search View for the google autocomplete support -->
<fragment
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MapsActivity" />
</RelativeLayout>

Your xml should look something like this:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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:layoutDirection="ltr">
<androidx.fragment.app.FragmentContainerView
android:id="#+id/map_layout"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<Button
android:id="#+id/btn"
android:layout_width="150dp"
android:layout_height="50dp"
android:layout_marginBottom="25dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
you can add more buttons/TextView

As one can see in image, RecyclerView items are visible through Standard/Persistent BottomSheet and collapsing/expanding of BottomSheet is also not happening in Standard/Persistent BottomSheet. RecyclerView items are scrollable but when I do any kind of activity in Standard/Persistent BottomSheet, it directly scrolling the RecyclerView item behind this Standard/Persistent BottomSheet.
Note: Background color used in BottomSheet is solid. It's not transparent.
I'm wondering how to solve this issue?
Here's the code snippet ->
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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/layout_container_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="app.standardbottomsheet.ui.MainActivity">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:id="#+id/layout_container_1"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
tools:context="app.standardbottomsheet.ui.MainActivity">
<include
android:id="#+id/included_layout_standard_bottom_sheet"
layout="#layout/layout_standard_bottom_sheet" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_list"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
layout_standard_bottom_sheet.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/layout_container_bottom_sheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/bottom_sheet_behavior">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/summary"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/thumbnail"
android:layout_width="?actionBarSize"
android:layout_height="?actionBarSize"
android:src="#mipmap/ic_launcher"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/app_name"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="#id/thumbnail"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
<com.google.android.material.slider.Slider
android:id="#+id/progress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#id/summary" />
</androidx.constraintlayout.widget.ConstraintLayout>

As you can see in the image your bottom sheet is behind the recycler view. To change that you have to change the order of recyclerview and coordinatelayour in your activity_main.xml
You can try by changing the order like this
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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/layout_container_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="app.standardbottomsheet.ui.MainActivity">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_list"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:id="#+id/layout_container_1"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
tools:context="app.standardbottomsheet.ui.MainActivity">
<include
android:id="#+id/included_layout_standard_bottom_sheet"
layout="#layout/layout_standard_bottom_sheet" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
Since both recycler view and CoordinatorLayout are match_parent, There order decide which is above to another.

Been knocking my head for hours trying to figure out what am doing wrong with this. I have a ListView in a ConstraintLayout that isn't being displayed. I am just getting accustomed to using ConstraintLayout so u'll forgive me for any silly mistakes. These are my layout files
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</com.google.android.material.appbar.AppBarLayout>
<include layout="#layout/content_main" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
content_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<ListView
android:id="#+id/noteList"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
The ListView in the above file doesn't display at all but when I substitute the ListView with a RecyclerView, the list is displayed.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/noteList"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
What am I doing wrong with the ListView that makes it not work and yet RecyclerView works fine?

If you want to preview your ListView in design mode, you'll have to use the tools namespace.
Add something like this to your XML file;
tools:listitem="#android:layout/simple_list_item_1"
Then add the tools namespace to the top of your XML file like so;
xmlns:tools="http://schemas.android.com/tools"
So, your file should look like this;
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
xmlns:tools="http://schemas.android.com/tools"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<ListView
android:id="#+id/noteList"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
tools:listitem="#android:layout/simple_list_item_1"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
That way you'll be able to preview your list view.

I have following activity
<?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:id="#+id/coordinator">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorWhite"
android:id="#+id/catalog_view">
<View
android:layout_width="match_parent"
android:layout_height="1dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginTop="79dp"
android:background="#color/gray238"
android:id="#+id/top_separator"/>
..
</android.support.constraint.ConstraintLayout>
<include layout="#layout/check_view_sheet"/>
</android.support.design.widget.CoordinatorLayout>
check_view_sheet
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/check_bottom_sheet"
android:layout_width="match_parent"
android:layout_height="500dp"
android:background="#color/colorWhite"
android:orientation="vertical"
app:behavior_hideable="false"
app:behavior_peekHeight="80dp"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<FrameLayout
app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
android:layout_width="400dp"
android:layout_height="235dp"
android:id="#+id/catalog_view_check_fragment"
/>
<TotalView.TotalView
android:layout_width="match_parent"
android:layout_height="#dimen/totalViewHeight"
android:id="#+id/catalog_total_view" />
</LinearLayout>
View inside framelayout
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/check_recycler_view"
android:paddingBottom="#dimen/checkBottomPadding"
android:clipToPadding="false"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
</android.support.v7.widget.RecyclerView>
</android.support.constraint.ConstraintLayout>
The problem is that recycler view is not scrolling.
I tried wrapping framelayout in nestedScrollView, but performance of scroll is horrible - its very laggy and it hides sheet when I try to scroll recycler view down.
How canto fix this ?

Because you are trying do nested scrolling, bottom sheet has scrollable behavior.
try this in RecyclerView
android:nestedScrollingEnabled="true"
if scrolling it in bottom sheet is really mandatory otherwise try by setting it to "false".