Bottom Sheet Initial Collapse not working

Bottom Sheet Initial Collapse not working - android

I need to show the text "Peek" at the collapsed state, but it shows the whole height.
How to hide the blank area above "Peek"?
It must show the "Peek" area at the first, then show "Content" after expand.
<?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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/bottom_sheet"
app:layout_behavior="#string/bottom_sheet_behavior"
app:behavior_hideable="true"
android:background="#drawable/rounded_bottom_dialog"
app:behavior_peekHeight="80dp"
android:orientation="vertical"
>
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="80dp"
android:gravity="center"
android:textColor="#color/white"
android:text="Peek" />
<TextView
android:layout_width="match_parent"
android:layout_height="200dp"
android:gravity="center"
android:textColor="#color/white"
android:text="Content" />
</LinearLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

You need to apply bottom_sheet_behavior to root 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"
android:id="#+id/bottomSheet"
android:layout_width="match_parent"
android:layout_height="300dp"
app:behavior_hideable="false"
app:behavior_peekHeight="80dp"
app:layout_behavior="#string/bottom_sheet_behavior">
<FrameLayout
android:id="#+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#121212">
<TextView
android:id="#+id/peekView"
android:layout_width="match_parent"
android:layout_height="80dp"
android:gravity="center"
android:text="Peek"
android:textColor="#color/white" />
<TextView
android:id="#+id/contentView"
android:layout_width="match_parent"
android:layout_height="200dp"
android:gravity="center"
android:text="Content"
android:textColor="#color/white" />
</FrameLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
You can change the alpha properties of both content and peek views by slideOffset in BottomSheetCallback
class MainActivity : AppCompatActivity() {
private lateinit var bottomSheetBehavior: BottomSheetBehavior<ConstraintLayout>
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet)
contentView.alpha = 0f
peekView.alpha = 1f
bottomSheetBehavior.addBottomSheetCallback(object :
BottomSheetBehavior.BottomSheetCallback() {
override fun onSlide(bottomSheet: View, slideOffset: Float) {
contentView.alpha = slideOffset
peekView.alpha = 1 - slideOffset
}
override fun onStateChanged(bottomSheet: View, newState: Int) {
}
})
}
}
Result

Related

How to hide toolbar in collapsed mode and show in normal mode

I am trying to implement collapsing toolbar behaviour in my app with a tab layout. I want to hide the toolbar when in collapse mode and just show the tab layout in collapse mode and in normal mode until collapsed I want to show the toolbar with the title of the app. Currently, it works as I want in collapsed mode I just want to add a toolbar that hides in collapsed mode.
My code
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<data>
</data>
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:id="#+id/htab_maincontent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/htab_appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:id="#+id/htab_collapse_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"
app:titleEnabled="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical"
android:background="#color/greyprofile"
android:padding="16dp">
<!-- android:background="#drawable/circularbordersolid"-->
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profilepic"
android:layout_width="150dp"
android:layout_height="150dp"
android:scaleType="centerCrop"
android:src="#drawable/hey" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:fontFamily="#font/proximanovaregular"
android:gravity="center"
android:text="Name User"
android:textColor="#424242"
android:textSize="21sp"
android:textStyle="bold" />
</RelativeLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="#font/proximanovaregular"
android:text="Username"
android:textColor="#424242"
android:gravity="center"
android:textSize="14sp" />
</LinearLayout>
<Button
android:id="#+id/editProfileBtn"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:layout_marginStart="10dp"
android:layout_marginEnd="10dp"
android:paddingBottom="10dp"
style="#style/Widget.MaterialComponents.Button.OutlinedButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#757575"
android:text="Edit Profile"
android:gravity="center"
android:textAllCaps="false"
android:textSize="16sp" />
</LinearLayout>
<!-- <androidx.appcompat.widget.Toolbar-->
<!-- android:id="#+id/htab_toolbar"-->
<!-- android:layout_width="match_parent"-->
<!-- android:layout_height="?attr/actionBarSize"-->
<!-- android:layout_gravity="top"-->
<!-- app:layout_collapseMode="pin"-->
<!-- app:popupTheme="#style/ThemeOverlay.AppCompat.Light"/>-->
<!-- android:layout_marginBottom="48dp"-->
</com.google.android.material.appbar.CollapsingToolbarLayout>
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"/>
<!-- android:background="#drawable/circularbordersolid"-->
<!-- app:tabIndicatorColor="#android:color/white"-->
<!-- app:tabSelectedTextColor="#android:color/white"-->
</com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager2.widget.ViewPager2
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/pager"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
</layout>

You should remove exitUntilCollapsed from your app:layout_scrollFlags
So, do it like that app:layout_scrollFlags="scroll|snap"

Here's a complete code in Kotlin to hide AppBarLayout for a specific fragment. You can also disable scrolling for collapsing toolbar layout:
mNavController.addOnDestinationChangedListener { _, destination, _ ->
when (destination.id) {
R.id.nav_welcome -> {
appBarLayout.setExpanded(false, false)
canScrollBehaviour.canScroll = false
collapsingToolbarLayout.updateLayoutParams<AppBarLayout.LayoutParams> {
scrollFlags =
AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL or AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP
}
}
else -> {
canScrollBehaviour.canScroll = true
isAppearanceLightStatusBars(true)
appBarLayout.setExpanded(true, false)
collapsingToolbarLayout.updateLayoutParams<AppBarLayout.LayoutParams> {
scrollFlags =
AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL or AppBarLayout.LayoutParams.SCROLL_FLAG_EXIT_UNTIL_COLLAPSED
}
}
}
}
For disabling/enabling scrolling:
class BlockableScrollBehaviour(context: Context, attrs: AttributeSet) : AppBarLayout.Behavior(context, attrs) {
var canScroll = true
override fun onStartNestedScroll(
parent: CoordinatorLayout,
child: AppBarLayout,
directTargetChild: View,
target: View,
nestedScrollAxes: Int,
type: Int
): Boolean = canScroll
override fun onTouchEvent(
parent: CoordinatorLayout,
child: AppBarLayout,
ev: MotionEvent
): Boolean = super.onTouchEvent(parent, child, ev) && canScroll
}
Using this code you can control scrolling:
val canScrollBehaviour =
(appBarLayout.layoutParams as CoordinatorLayout.LayoutParams).behavior as BlockableScrollBehaviour

Hiding bottom navigation view on Android

I'm developing an Android app that follows the single activity pattern. In one of my fragments I have a RecyclerView and in the case where the user scrolls down I want to hide my BottomNavigationView.
I have already seen other posts about this matter but none of them seems to help my with my issue. So far I've tried making the bottom nav view and my host fragment childs of CoordinatorLayout as well as adding the app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior" property on my BottomNavigationView. I have also tried to implement this behaviour manually in code but that is not working either.
Here is my activity.xml which contains my BottomNavigationView and my host fragment.
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.MainActivity">
<fragment
android:id="#+id/fragmentMaster"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:defaultNavHost="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toTopOf="#id/bottomNav"
app:layout_constraintTop_toTopOf="parent"
app:navGraph="#navigation/nav_graph" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNav"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="#menu/menu_bottom_nav">
</com.google.android.material.bottomnavigation.BottomNavigationView>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
And this is the fragment with the RecyclerView
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.google.android.material.appbar.MaterialToolbar
android:id="#+id/topAppBar"
style="#style/Widget.MaterialComponents.Toolbar.Primary"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll"
app:title="#string/app_name" />
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF"
android:scrollbars="none"
app:layout_scrollFlags="scroll">
<com.google.android.material.chip.ChipGroup
android:id="#+id/filterChips"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="8dp"
app:singleLine="true">
<com.google.android.material.chip.Chip
android:id="#+id/breakfastChip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checkable="true"
android:text="#string/breakfast" />
<com.google.android.material.chip.Chip
android:id="#+id/mealChip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checkable="true"
android:text="#string/meal" />
<com.google.android.material.chip.Chip
android:id="#+id/dinnerChip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checkable="true"
android:text="#string/dinner" />
<com.google.android.material.chip.Chip
android:id="#+id/veganChip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checkable="true"
android:text="#string/vegan" />
<com.google.android.material.chip.Chip
android:id="#+id/vegetarianChip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checkable="true"
android:text="#string/vegetarian" />
<com.google.android.material.chip.Chip
android:id="#+id/regularChip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checkable="true"
android:text="#string/regular" />
</com.google.android.material.chip.ChipGroup>
</HorizontalScrollView>
</com.google.android.material.appbar.AppBarLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recipeList"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:listitem="#layout/item_recipe_list">
</androidx.recyclerview.widget.RecyclerView>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/newRecipeBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:contentDescription="#string/add_recipe"
android:src="#drawable/ic_baseline_add_24">
</com.google.android.material.floatingactionbutton.FloatingActionButton>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
</layout>
Edit: The issue was that the inner CoordinatorLayout was consuming the scroll event and so the AppBarLayout worked as expected, but the outer CoordinatorLayout that manages the BottomNavView never received the scroll notification. The solution is to overwrite the CoordinatorLayout implementation so that it propagates to the parent CoordinatorLayout.

Preview
Create kotlin class NavigationViewBehavior.kt
import android.view.View
import androidx.coordinatorlayout.widget.CoordinatorLayout
import androidx.core.view.ViewCompat
import androidx.core.view.ViewCompat.NestedScrollType
import com.google.android.material.bottomnavigation.BottomNavigationView
class NavigationViewBehavior : CoordinatorLayout.Behavior<BottomNavigationView>() {
private var height = 0
override fun onLayoutChild(parent: CoordinatorLayout, child: BottomNavigationView, layoutDirection: Int): Boolean {
height = child.height
return super.onLayoutChild(parent, child, layoutDirection)
}
override fun onStartNestedScroll(coordinatorLayout: CoordinatorLayout,
child: BottomNavigationView, directTargetChild: View, target: View,
axes: Int, type: Int): Boolean {
return axes == ViewCompat.SCROLL_AXIS_VERTICAL
}
override fun onNestedScroll(coordinatorLayout: CoordinatorLayout, child: BottomNavigationView,
target: View, dxConsumed: Int, dyConsumed: Int,
dxUnconsumed: Int, dyUnconsumed: Int,
#NestedScrollType type: Int) {
if (dyConsumed > 0) {
slideDown(child)
} else if (dyConsumed < 0) {
slideUp(child)
}
}
private fun slideUp(child: BottomNavigationView) {
child.clearAnimation()
child.animate().translationY(0f).duration = 200
}
private fun slideDown(child: BottomNavigationView) {
child.clearAnimation()
child.animate().translationY(height.toFloat()).duration = 200
}
}
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/business_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:hardwareAccelerated="true">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:id="#+id/coordinator_business_layout"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<FrameLayout
android:id="#+id/frame_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="?actionBarSize"
android:orientation="vertical">
<fragment
android:id="#+id/nav_host_fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:navGraph="#navigation/mobile_navigation"
tools:ignore="FragmentTagUsage" />
</FrameLayout>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/nav_view"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="bottom"
android:background="#color/colorWhite"
app:itemBackground="#drawable/border_bottom_ver"
app:itemIconTint="#drawable/tab_color"
app:itemTextColor="#drawable/tab_color"
app:menu="#menu/bottom_nav_menu" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
call in MainActivity.kt
val navController = Navigation.findNavController(this,
R.id.nav_host_fragment)
NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration!!)
NavigationUI.setupWithNavController(navView!!, navController)
val layoutParams = navView!!.getLayoutParams() as CoordinatorLayout.LayoutParams
layoutParams.behavior = NavigationViewBehavior()
val params = frameLayout.layoutParams as ViewGroup.MarginLayoutParams
//hide bottom navigation no need while sun activities are being used
navController.addOnDestinationChangedListener { controller: NavController?,
destination: NavDestination, arguments: Bundle? ->
if (destination.id == R.id.navigation_fragments ) {
params.setMargins(0, 0, 0, 0)
frameLayout.layoutParams = params
navView!!.setVisibility(View.GONE)
} else {
params.setMargins(0, 0, 0, 160)
frameLayout.layoutParams = params
navView!!.setVisibility(View.VISIBLE)
}
}
home_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rvServices"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
android:visibility="visible" />
<TextView
android:id="#+id/no_values_assigned_message"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:text="#string/no_values_assigned"
android:textSize="#dimen/fontSizeReg"
android:textStyle="bold"
android:visibility="gone" />
</androidx.constraintlayout.widget.ConstraintLayout>
this is the setting my RecyclerView
private fun RecyclerSetting(view: View) {
no_value = view.findViewById(R.id.no_values_assigned_message)
rvItem = view.findViewById(R.id.rvServices)
rvItem!!.setHasFixedSize(true)
//Very IMP This Line
val manager = GridLayoutManager(activity, 2,
GridLayoutManager.VERTICAL,
false)
data
rvItem!!.setLayoutManager(manager)
}
while you scroll recycler view auto-hide and also you can hide bottom navigation from specific Fragment code included

Recyclerview design issue

I have recyclerview to show my order items but it has design issue and after 3 days changing it I have no other solution for it!
screenshot
Issues
Recyclerview is not covering page full height
Items have space same as recyclerview height (it shows 1 item per page!)
Code
fragment_order.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/orderItem"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".main.OrdersFragment">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/orders_list"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
order_items.xml
<?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="wrap_content">
<androidx.cardview.widget.CardView
android:id="#+id/cardView2"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginBottom="5dp"
app:cardElevation="2dp"
android:layout_margin="5dp">
<FrameLayout
android:background="#color/orders"
android:layout_width="4dp"
android:layout_height="match_parent"/>
<TextView
android:id="#+id/order_Iid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:gravity="start|top"
android:text="#string/order_ID"
android:textSize="12sp"
android:textStyle="bold" />
<TextView
android:id="#+id/order_status_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|start"
android:layout_marginStart="10dp"
android:layout_marginTop="35dp"
android:text="#string/order_status"
android:textColor="#5CDCBD"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="#+id/order_price_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top|end"
android:layout_marginEnd="10dp"
android:text="#string/price"
android:textSize="12sp"
android:textStyle="bold" />
</androidx.cardview.widget.CardView>
</LinearLayout>
OrdersFragment.kt
class OrdersFragment : Fragment() {
lateinit var sesssion: SessionManager
lateinit var laundriesRecycler: RecyclerView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
}
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
// Inflate the layout for this fragment
val root = inflater.inflate(R.layout.fragment_orders, container, false)
sesssion = SessionManager(context)
laundriesRecycler = root.findViewById(R.id.orders_list)
getOrders()
return root
}
private fun getOrders() {
var session = SessionManager(context)
session.checkLogin()
var user = session.getUserDetails()
var token: String? = user.get(SessionManager.KEY_ACCESS_TOKEN)
val tokenFull = "Bearer $token"
val queue = Volley.newRequestQueue(context)
val url = "https://example.com/api/orders"
val stringReq : StringRequest =
object : StringRequest(
Method.GET, url,
Response.Listener { response ->
val list = Gson().fromJson(response, OrderArr::class.java)
laundriesRecycler.layoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)
laundriesRecycler.adapter = OrdersAdapter(context, list)
},
Response.ErrorListener {
Toast.makeText(context, R.string.errorMessage, Toast.LENGTH_LONG)
.show()
}
){
override fun getHeaders(): Map<String, String> {
val headers = HashMap<String, String>()
headers["Content-Type"] = "application/json"
headers["Authorization"] = tokenFull
return headers
}
}
queue.add(stringReq)
}
}
Any idea?
Update
OrdersAdapter.kt
class OrdersAdapter(
val context: Context?,
private var orderList: OrderArr
) : RecyclerView.Adapter<OrdersAdapter.OrderViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): OrdersAdapter.OrderViewHolder {
val itemView = LayoutInflater.from(parent.context).inflate(
R.layout.orders_items,
parent,
false
)
//fixing width issue
val outMetrics = DisplayMetrics()
val display = parent.display
display?.getRealMetrics(outMetrics)
itemView.layoutParams = RecyclerView.LayoutParams(outMetrics.widthPixels, RecyclerView.LayoutParams.MATCH_PARENT)
return OrdersAdapter.OrderViewHolder(itemView)
}
override fun onBindViewHolder(holder: OrdersAdapter.OrderViewHolder, position: Int) {
val currentItem = orderList.data[position]
holder.orderId.text = "ID: " + currentItem.id
holder.price.text = if(currentItem.amount!= null){"Rp. " + currentItem.amount + " /KG"}else{"Not provided"}
holder.status.text = if(currentItem.lastProgress!= null) {currentItem.lastProgress.progress.name} else{"Unknown"}
holder.itemView.setOnClickListener {
val i: Intent = Intent(context, OrdersActivity::class.java)
i.putExtra("orderIDArgument", currentItem.id.toString())
it.context.startActivity(i);
}
}
override fun getItemCount() = orderList.data.size
class OrderViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView){
val orderId: TextView = itemView.findViewById(R.id.order_Iid)
val status: TextView = itemView.findViewById(R.id.order_status_text)
val price: TextView = itemView.findViewById(R.id.order_price_text)
}
}
Update 2
Activity_main.xml
Every fragment will replace each other inside this activity
<?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">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="56dp">
<androidx.fragment.app.FragmentContainerView
android:id="#+id/fragmentFragmentId"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="wrap_content"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:navGraph="#navigation/main_graphs"
tools:context=".MainActivity" />
</ScrollView>
<!--bottom navigation bar with items-->
<com.google.android.material.bottomappbar.BottomAppBar
android:id="#+id/bottomAppBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#color/colorPrimaryNewTheme"
android:backgroundTint="#color/colorPrimaryNewTheme"
app:backgroundTint="#android:color/white"
app:fabAlignmentMode="end"
app:fabCradleMargin="10dp"
app:fabCradleRoundedCornerRadius="20dp"
app:fabCradleVerticalOffset="14dp"
app:hideOnScroll="true"
app:menu="#menu/bottom_menu"
tools:ignore="BottomAppBar,MissingConstraints" />
<!--Floating action button which is anchored to the bottom navigation button-->
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:backgroundTint="#color/colorPrimaryNewTheme"
android:contentDescription="#string/app_name"
android:src="#drawable/order"
app:backgroundTint="#color/colorPrimaryNewTheme"
app:layout_anchor="#id/bottomAppBar"
app:layout_dodgeInsetEdges="bottom"
tools:ignore="MissingConstraints" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Update 3
fragment_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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".main.MainFragment">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/header_imageP"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:contentDescription="#string/himage"
android:scaleType="centerCrop"
android:src="#drawable/main_header"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="42dp"
android:layout_marginTop="31dp"
android:textColor="#FFFFFF"
android:text="#string/nameHint" />
<TextView
android:id="#+id/useremail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/username"
android:layout_alignParentStart="true"
android:layout_marginStart="42dp"
android:layout_marginTop="8dp"
android:textColor="#FFFFFF"
android:text="#string/emailHint" />
<ImageView
android:id="#+id/logo"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_below="#+id/useremail"
android:layout_alignParentStart="true"
android:layout_marginStart="41dp"
android:layout_marginTop="13dp"
android:contentDescription="#string/himage"
android:src="#drawable/logo" />
<TextView
android:id="#+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginStart="21dp"
android:layout_marginTop="118dp"
android:layout_toEndOf="#+id/logo"
android:text="#string/app_name"
android:textColor="#FFFFFF"
android:textSize="18sp"
android:textStyle="bold" />
<RelativeLayout
android:id="#+id/t1"
android:layout_width="match_parent"
android:layout_height="300dp"
android:layout_below="#+id/header_imageP"
android:layout_marginTop="4dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginStart="6dp"
android:text="HIIII" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/t2"
android:layout_width="match_parent"
android:layout_height="300dp"
android:layout_below="#+id/t1"
android:layout_marginTop="4dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginStart="6dp"
android:text="BYEEEE" />
</RelativeLayout>
</RelativeLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>

First remove code for customizing width and height of recycler item view inside Adapter.
Like:
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): OrdersAdapter.OrderViewHolder {
val itemView = LayoutInflater.from(parent.context).inflate(
R.layout.order_item,
parent,
false
)
//fixing width issue
/*val outMetrics = DisplayMetrics()
val display = parent.display
display?.getRealMetrics(outMetrics)
itemView.layoutParams = RecyclerView.LayoutParams(outMetrics.widthPixels, RecyclerView.LayoutParams.MATCH_PARENT)*/
return OrdersAdapter.OrderViewHolder(itemView)
}
Second, you are not putting any constraint to FragmentContainerView thats why it goes to (0,0) position by default and you have set it's height to wrap_content, so your recycler view looks like the posted image. And it is not recommended to use recycler view inside scroll view. Try with customizing Activity_main.xml as below:
<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/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.bottomappbar.BottomAppBar
android:id="#+id/bottomAppBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:fabAlignmentMode="end"
app:fabCradleMargin="10dp"
app:fabCradleRoundedCornerRadius="20dp"
app:fabCradleVerticalOffset="14dp"
app:hideOnScroll="true"
app:menu="#menu/bottom_menu"
tools:ignore="BottomAppBar,MissingConstraints"
app:layout_constraintBottom_toBottomOf="parent"/>
<fragment
android:id="#+id/nav_view"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="0dp"
app:defaultNavHost="true"
app:layout_constraintBottom_toTopOf="#+id/bottomAppBar"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:navGraph="#navigation/main_graphs" />
<!-- put FAB here -->
</androidx.constraintlayout.widget.ConstraintLayout>

RecyclerView not rendering a card item on the both end

I'd to show the user cards horizontally using a RecyclerView, but I have a problem like the image below.
The card not appears at first, but when I scroll it a little bit, the card shows up suddenly. It looks really weird. Why don't the card rendered from the starts? And it's the same case for the other end of the RecyclerView.
I'm suspecting the clipChildren or clipToPadding. Is there any solution to this problem without having to put the categories outside of the LinearLayout with a padding?
HomeFragment.kt
class HomeFragment : Fragment() {
private lateinit var binding: FragmentHomeBinding
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
binding = FragmentHomeBinding.inflate(inflater, container, false)
val view = binding.root
setupCategories()
setupProducts()
return view
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
}
private fun setupCategories() {
val dummy = arrayOf(
Category(R.drawable.shoes_nike_black),
Category(R.drawable.yellow_shirt),
Category(R.drawable.hoodie_gray_big),
Category(R.drawable.hoodie_pink),
)
val spacingInPixels = (Resources.getSystem().displayMetrics.density * 8).toInt()
binding.includeContentMain.recyclerViewCategories.addItemDecoration(
LinearSpacingItemDecoration(spacingInPixels)
)
binding.includeContentMain.recyclerViewCategories.adapter = CategoriesAdapter(dummy)
}
// other unrelated code...
}
content_main.xml
<?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:clipChildren="false"
android:clipToPadding="false"
android:orientation="vertical"
android:paddingLeft="25dp"
android:paddingTop="15dp"
android:paddingRight="30dp"
android:paddingBottom="15dp"
tools:showIn="#layout/fragment_home">
<TextView
android:id="#+id/textViewCategory"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:layout_marginBottom="12dp"
android:text="Category"
android:textSize="30dp" />
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipChildren="false"
android:clipToPadding="false"
android:fillViewport="true">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerViewCategories"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipChildren="false"
android:clipToPadding="false"
android:nestedScrollingEnabled="false"
android:orientation="horizontal"
android:overScrollMode="always"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
tools:itemCount="4"
tools:listitem="#layout/item_card_category" />
</androidx.core.widget.NestedScrollView>
<TextView
android:id="#+id/textView3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:layout_marginBottom="12dp"
android:text="Top Selling"
android:textSize="30dp" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerViewTopSelling"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:isScrollContainer="false"
app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
app:spanCount="2"
tools:itemCount="6"
tools:listitem="#layout/item_card_product">
</androidx.recyclerview.widget.RecyclerView>
</LinearLayout>
item_card_category.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView 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="150dp"
android:layout_height="150dp"
app:cardBackgroundColor="#F7BE30"
app:cardCornerRadius="10dp">
<ImageView
android:id="#+id/imageViewCategory"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:adjustViewBounds="true"
android:cropToPadding="false"
android:padding="10dp"
android:src="#drawable/bag"
tools:src="#tools:sample/backgrounds/scenic" />
</androidx.cardview.widget.CardView>

That line of code will help. For JAVA and KOTLIN use:
recyclerViewCategories.getRecycledViewPool().setMaxRecycledViews(0, 0);
*recyclerViewCategories = recyclerView

Adjust layout to take a percentage of the screen

How can I make a custom view to take only 33% of the screen and make it show proportionately on every device?
This should be handled either on the xml files below, or in the custom view kotlin class, since it's part of a library and I don't have access to the view that will host my custom class.
buff_view.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:id="#+id/mainLinearLayout"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<include layout="#layout/buff_sender"/>
<include layout="#layout/buff_question"/>
<LinearLayout
android:id="#+id/answersContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"/>
</LinearLayout>
buff_sender.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="4dp"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/light_bg"
android:orientation="horizontal"
tools:ignore="RtlHardcoded">
<ImageView
android:id="#+id/sender_image"
android:layout_width="27dp"
android:layout_height="27dp"
android:layout_gravity="center_vertical"
android:padding="4dp" />
<TextView
android:id="#+id/sender_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:padding="4dp"
tools:text="Praveen"
android:textColor="#color/test_color_dark"
android:textStyle="bold" />
</LinearLayout>
<androidx.appcompat.widget.AppCompatImageButton
android:id="#+id/buff_close"
android:layout_width="26dp"
android:layout_height="26dp"
android:layout_alignParentEnd="true"
android:background="#drawable/ic_btn_close" />
</RelativeLayout>
buff_question.xml
<?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="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/dark_bg"
android:orientation="horizontal">
<TextView
android:id="#+id/question_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|start"
android:padding="18dp"
android:textColor="#color/test_color_light"
android:textStyle="bold"
tools:text="Where do you think Jorge will put this penalty? I'd go left here! Hehehehehehehehehehe super long text" />
<FrameLayout
android:layout_width="32dp"
android:layout_height="32dp">
<ProgressBar
android:id="#+id/question_time_progress"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:indeterminate="false"
android:indeterminateDuration="1"
android:max="100"
android:progress="0" />
<TextView
android:id="#+id/question_time"
android:layout_width="26dp"
android:layout_height="26dp"
android:layout_gravity="center"
android:gravity="center"
android:textColor="#color/test_color_light"
android:textStyle="bold"
tools:text="14" />
</FrameLayout>
</LinearLayout>
buff_answer.xml (which will be injected in the answersContainer from buff_view.xml dynamically depending on the number of answers available for that question)
<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="wrap_content"
android:layout_marginTop="8dp"
android:background="#drawable/light_bg"
android:orientation="horizontal"
tools:ignore="RtlHardcoded">
<ImageView
android:id="#+id/answer_image"
android:layout_width="27dp"
android:layout_height="27dp"
android:layout_gravity="center_vertical"
android:src="#drawable/ic_generic_answer"
android:padding="4dp" />
<TextView
android:id="#+id/answer_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:padding="4dp"
android:textColor="#color/test_color_dark"
tools:text="The keeper's right"
android:textStyle="bold" />
</LinearLayout>
BuffView.kt
class BuffView #JvmOverloads constructor(context: Context, attrs: AttributeSet? = null)
: LinearLayout(context, attrs) {
private val apiErrorHandler = ApiErrorHandler()
private val getBuffUseCase = GetBuffUseCase(apiErrorHandler)
private val intervalsHandler = Handler()
private val buffView: LinearLayout = inflate(context, R.layout.buff_view, this) as LinearLayout
private var errorListener: ErrorListener? = null
private var countDownTimer: CountDownTimer? = null
private var buffIdCount = 1
private var getBuffs = false
fun init() {
getBuffs = true
getBuff()
}
private fun getBuff() {
if (!getBuffs) return
getBuffUseCase.invoke(Params(buffIdCount.toLong()), object : UseCaseResponse<Buff> {
override fun onSuccess(result: Buff) {
displayBuff(result)
}
override fun onError(errorModel: ErrorModel?) {
errorListener?.onError( errorModel?.message?: "An error has occurred")
hideBuff()
}
})
if (buffIdCount < TOTAL_BUFFS ) {
intervalsHandler.postDelayed({
buffIdCount++
getBuff()
stopCountDownTimer()
}, REQUEST_BUFF_INTERVAL_TIME)
}
}
private fun displayBuff(buff: Buff) {
setQuestion(buff.question.title)
setAuthor(buff.author)
setAnswer(buff.answers)
setProgressBar(buff.timeToShow)
setCloseButton()
invalidate()
showBuff()
}
private fun setQuestion(questionText: String) {
question_text.text = questionText
}
private fun setAuthor(author: Buff.Author) {
val firstName = author.firstName
val lastName = author.lastName
sender_name.text = "$firstName $lastName"
Glide.with(buffView)
.load(author.image)
.into(sender_image)
}
private fun setAnswer(answers: List<Buff.Answer>) {
val answersContainer = findViewById<LinearLayout>(R.id.answersContainer)
answersContainer.removeAllViews()
for(answer in answers) {
val answerView: View = LayoutInflater.from(answersContainer.context).inflate(
R.layout.buff_answer,
answersContainer,
false
)
answer.answerImage?.x0?.url?.let {
Glide.with(buffView)
.load(it)
.into(answerView.answer_image)
}
answerView.setOnClickListener {
answerView.background = ContextCompat.getDrawable(context, R.drawable.answer_selected_bg)
answerView.answer_text.setTextColor(ContextCompat.getColor(context, android.R.color.white))
//freeze timer
stopCountDownTimer()
//hideView() after 2 seconds
it.postDelayed(Runnable {
hideBuff()
}, HIDE_BUFF_AFTER_SELECTED_ANSWER_DURATION)
}
answerView.answer_text?.text = answer.title
answersContainer.addView(answerView)
}
}
...
}

You'll have to include your buff_view.xml as a child of a layout where you can set the layout_weight property like this.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:gravity="bottom">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="horizontal">
<include layout="#layout/buff_view">
</LinearLayout>
<View
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="2" />
</LinearLayout>
Also change the width and height constraints for the buff view top LinearLayout like this
<LinearLayout
android:id="#+id/mainLinearLayout"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include layout="#layout/buff_sender"/>
<include layout="#layout/buff_question"/>
<LinearLayout
android:id="#+id/answersContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"/>
</LinearLayout>
EDIT: Progress bar not visible problem
I think it is a problem with the TextView question_text
Change it like this
<TextView
android:id="#+id/question_text"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="center_vertical|start"
android:padding="18dp"
android:textColor="#color/test_color_light"
android:textStyle="bold" />
Also change the main Layout in buff_question.xml and set its layout_width to match_parent like this
<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="wrap_content"
android:background="#drawable/dark_bg"
android:orientation="horizontal">

This is easily done using ConstraintLayout and width/height percentages.
Be sure to set the actual width dimensions to 0dp (where using a percentage value) and to make sure the views are constrained appropriately.
The below produces this output
<?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">
<View
android:background="#color/salmon1"
android:id="#+id/view1"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent=".33"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<View
android:background="#color/orange1"
android:id="#+id/view2"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/view1" />
</androidx.constraintlayout.widget.ConstraintLayout>

Develop Reference

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Adjust layout to take a percentage of the screen

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