i have a listview in a fragment(Total 3 tabs in viewpager) and using this below code to get swipe down to refresh functionality but on swiping left to another fragment swipe refresh function is called how to restrict this(happens only if listview is empty).
<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="match_parent"
>
<android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/fragmenttab1_swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/fragmenttab1_list_item"
android:dividerHeight="1dp"
android:focusable="false"
android:focusableInTouchMode="false"
android:longClickable="true">
</ListView>
</android.support.v4.widget.SwipeRefreshLayout>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/fragmenttab1_emptyElement"
android:text="No Posts"
android:textStyle="bold"
android:textSize="15sp"
android:visibility="gone"
android:layout_centerInParent="true"
android:textColor="#android:color/darker_gray"/>
</RelativeLayout>
Java code
listView.setAdapter(adapter);
listView.setEmptyView(getView().findViewById(R.id.fragmenttab1_emptyElement));
Related
I'm making an app and I can't find any solutions.Here is my code:
<?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"
tools:context=".MainActivity"
android:background="#color/DarkGray"
android:orientation="vertical">
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/BackGroundColor"
android:orientation="horizontal"
android:paddingTop="4dp"
android:paddingBottom="4dp">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textAlignment="center"
android:textAllCaps="true"
android:textColor="#color/SecondaryTextColor"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textAlignment="center"
android:textAllCaps="true"
android:textColor="#color/SecondaryTextColor"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="400dp"
android:background="#color/BlueGray"
android:nestedScrollingEnabled="false"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/BackGroundColor"
android:padding="4dp"
android:textAlignment="center"
android:textColor="#color/PrimaryTextColor"
android:textSize="22sp" />
<ListView
android:id="#+id/eventsListView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="2dp"/>
</LinearLayout>
</androidx.core.widget.NestedScrollView>
</LinearLayout>
What I'm trying to achive is add CardViews inside my ListView and be able to scroll not just the ListView but the whole view. I tried RecyclerView before but that didn't work for me either.
Here's my idea:
and Scroll the whole thing not just the ListView.
You need to use NestedScrollView.
NestedScrollView is just like ScrollView, but it supports acting as both a nested scrolling parent and child on both new and old versions of Android. Nested scrolling is enabled by default.
Please refer NestedScrollView documentation
Don't forget to add recyclerView.setNestedScrollingEnabled(false); to your RecyclerView.
friends i am working on Android Studio to develop an app, the app will be used on Tablets and also other android phones. But i am getting some problems while designing the View (Template). Please help me to sort out this problem.
I am using ConstraintLayout as the mainLayout, and inside it i am using linearlayout with vertical orientation. You can check the code and output
If i use the listView highet as 0dp then it will show nothing
<?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/mainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/my_images_gallary"
android:textSize="36sp"
android:textStyle="bold" />
<ListView
android:id="#+id/listView"
android:layout_width="match_parent"
android:layout_height="0dp">
</ListView>
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="150dp"
android:text="Button" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
[Output for the height is 0dp][1]
and if i use the ListView Height as match_parent so the bottom button will not appear.
<?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/mainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/my_images_gallary"
android:textSize="36sp"
android:textStyle="bold" />
<ListView
android:id="#+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent">
</ListView>
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="150dp"
android:text="Button" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
Output for the height is match_parent
Actually i want the listView should show all with scrolling and and the button should be seen all time while the listview is being scroll or not.
Expected Output which i am failed to get
Idea 1:
give fixed height to button and textview. Then use 0dp height to listview
Idea 2:
Use weight_sum to linear layout and give layout_weight to button,textview and listview as you expect.
I want to Scroll ReyclerView inside a Fixed height/region.
Sample XML to demonstrate the use case
<?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:id="#+id/ele_parent_ll"
android:layout_width="match_parent"
android:orientation="vertical"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_height="match_parent">
<android.support.v4.widget.NestedScrollView
android:id="#+id/election_parent_sv"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/sample_id"
android:background="#color/white"
android:fitsSystemWindows="true">
<ImageView
android:contentDescription="#string/btn_youtube"
android:layout_width="match_parent"
android:layout_height="115dp"
android:id="#+id/election_banner"
android:background="#drawable/some_drawable"
android:adjustViewBounds="true"/>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/mid_parent"
android:layout_marginLeft="#dimen/view_margin_10"
android:layout_marginRight="#dimen/view_margin_10"
android:layout_marginTop="#dimen/view_margin_10"
android:orientation="horizontal"
android:weightSum="1">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".5"
android:orientation="vertical">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/shaded_purple_new_local"
android:text="Layout heading"
android:textColor="#color/white" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Choose one"
android:textColor="#color/icon_yellow"
android:textSize="13sp" />
<android.support.v7.widget.RecyclerView
android:id="#+id/candidate_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:nestedScrollingEnabled="false">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="#dimen/view_margin_10"
android:layout_marginLeft="#dimen/view_margin_10"
android:layout_weight=".5"
android:orientation="vertical">
</LinearLayout>
</LinearLayout>
</LinearLayout>
<!--Sample Layout to make the screen scrollable for the example-->
<RelativeLayout
android:id="#+id/samp_RL"
android:layout_width="match_parent"
android:layout_height="200dp">
</RelativeLayout>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</LinearLayout>
In this scenario, the RecyclerView is taking it's required space and list is pretty much long so the total length of the scrollable area has gone long so probability of seeing elements below RCV has decreased.
To solve this I want to scroll RecyclerView inside a fixed area so that If the user is not interested in that he can easily look up to the other Elements present below the RecyclerView
When user scrolls within the region of RCV the RCV should scroll.
When the user scrolls outside the RCV the whole Layout should scroll
Image made at draw.io
What I have tried:
Making the height of RecyclerView constant: It is Jammed and is not scrolling at all.
Making Recyclerview Fixed Height and Scrollable : It's also the same. It is jammed and is not scrolling at all.
Scrollable NestedScrollViews inside RecyclerView: Tried this but could not establish a connection to my current situation.
Please tell what I am missing here.
you do not need to do anything. by default it works like this only !
Try the below code -
recyclerView = (RecyclerView) view.findViewById(R.id.my_recycler_view);
recyclerView.setHasFixedSize(false);
layoutManager = new LinearLayoutManager(getActivity());
recyclerView.setLayoutManager(layoutManager);
mAdapter = new MyAdapterClass(getContext(), lst);
recyclerView.setAdapter(mAdapter);
XML
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
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="com.example.iosdteachingapp.MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="100sp"
android:text="hello"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/my_recycler_view"
android:layout_width="200sp"
android:layout_height="300sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="end"
android:padding="20sp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="end"
android:padding="20sp"/> <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="end"
android:padding="20sp"/> <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="end"
android:padding="20sp"/>
</LinearLayout>
</ScrollView>
Add android:nestedScrollingEnabled="false" to your RecyclerView.
Set Recycler view height dynamically thr java using param.
You can even set the height to show only particular no of elements by setting height = size of each element of recycler view * no of elements in the list.
Try this :
ViewGroup.LayoutParams
params=recyclerview.getLayoutParams();
params.height=100;
recyclerview.setLayoutParams(params);
This is sort of a strange bug I discovered.
But if I have a RecyclerView in a fragment and I open then close my DrawerLayout, my RecyclerView comes in focus. That means closing my DrawerLayout will cause the ScrollView to jump to my RecyclerView. Obviously, I would like the ScrollView's position to not move when the DrawerLayout is closed, and definitely not settle on my RecyclerView.
CODE
Throughout my application, I have RecyclerViews contained within ScrollViews, similar to this setup:
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:layout_alignParentTop="true"
android:layout_width="match_parent"
android:layout_height="180dp">
<android.support.v7.widget.AppCompatImageView
android:id="#+id/header_photo"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:tint="#80000000"
android:scaleType="centerCrop"/>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true">
<TextView android:id="#+id/header_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:paddingTop="2dp"
android:paddingBottom="2dp"
android:textColor="#color/text_SecondaryColor"
android:textSize="#dimen/header_xxlarge"/>
<View android:id="#+id/divider"
android:layout_width="0dp"
android:layout_height="#dimen/hr_thick"
android:background="#color/accent_PrimaryColor"/>
</LinearLayout>
</RelativeLayout>
<LinearLayout
android:orientation="vertical"
android:layout_margin="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<Button android:id="#+id/button_more"
android:layout_marginTop="6dp"
android:layout_marginBottom="6dp"
android:layout_width="400px"
android:layout_height="100px"
android:layout_gravity="center"
android:gravity="center"
android:background="#drawable/button_dark"
android:textColor="#drawable/button_dark_textcolor"/>
</LinearLayout>
</LinearLayout>
</ScrollView>
And my DrawerLayout's XML design is arranged like this:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<include
android:layout_height="wrap_content"
android:layout_width="match_parent"
layout="#layout/toolbar" />
</LinearLayout>
<FrameLayout
android:id="#+id/contentframe"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<RelativeLayout
android:layout_width="300dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#color/background_Secondary">
<!-- Relative Layout : Back Button -->
<RelativeLayout
android:id="#+id/menu_backcontainer"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize">
<ImageView
android:id="#+id/menu_back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="20dp"
android:src="#drawable/angle"
android:layout_centerVertical="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
<!-- List View : Menu Drawer Content -->
<ListView
android:id="#+id/menu"
android:layout_below="#id/menu_backcontainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:choiceMode="singleChoice"
android:background="#color/background_PrimaryDarkColor">
</ListView>
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
I am not sure what other Java Code I need to include here but this is how I instantiate my RecyclerView:
recyclerView = (RecyclerView)view.findViewById(R.id.recyclerview);
LinearLayoutManager layoutManager = new LinearLayoutManager(getContext().getApplicationContext());
recyclerView.setLayoutManager(layoutManager);
recyclerView.setNestedScrollingEnabled(false);
And For My DrawerLayout:
drawerlayout = (DrawerLayout)findViewById(R.id.drawer);
menu = (ListView)findViewById(R.id.menu);
MenuAdapter adapter = new MenuAdapter(
this,
R.layout.listview_menuitem,
menuItemArray);
menu.setAdapter(adapter);
menu.setOnItemClickListener(new menuItemClickListener());
menuToggle = new ActionBarDrawerToggle(
this,
drawerlayout,
toolbar,
R.string.app_name,
R.string.app_name);
drawerlayout.setDrawerListener(menuToggle);
menuToggle.syncState();
Gee, it is amazing what a moment away from the computer and a cup of coffee will do.
I simply set the focusableInTouchMode attribute of my FrameLayout to true.
I guess this nullifies the RecyclerViews desire to be the focused element in the ScrollView when I touch anywhere on the screen after the DrawerLayout is opened. Perhaps there is a better, more thorough explanation. But I hope this helps anyone else who may experience this problem.
i search lot of topic about scrollview which doesn't scroll but no one can resolve my issue :/
if someone could help me :)
each listview print some people when i do a request from my server
normally when i scroll down of my list the second list appear but it does not
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/selector_for_background_white"
android:orientation="vertical">
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/selector_for_background_white"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="#+id/layoutScrollResult"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/selector_for_background_white">
<LinearLayout
android:id="#+id/layout2"
android:layout_width="match_parent"
android:layout_height="40dp"
android:orientation="horizontal">
<com.whask.whask.utils.font.FontTextView
android:id="#+id/text_hot"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:background="#android:color/transparent"
android:text="5 HOT"
android:textSize="#dimen/abc_text_size_medium_material"
app:font="Neo-Sans-Std-Medium.otf"/>
</LinearLayout>
<ListView
android:id="#+id/result_whask_listview_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/layout2">
</ListView>
<LinearLayout
android:id="#+id/layout3"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_below="#+id/result_whask_listview_view"
android:orientation="horizontal">
<com.whask.whask.utils.font.FontTextView
android:id="#+id/text_not"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:background="#android:color/transparent"
android:text="2 NOT"
android:textSize="#dimen/abc_text_size_medium_material"
app:font="Neo-Sans-Std-Medium.otf"/>
</LinearLayout>
<ListView
android:id="#+id/result_whask_listview_view_no"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/layout3"
android:background="#color/my_whask_white_color">
</ListView>
</RelativeLayout>
</LinearLayout>
</LinearLayout>
</ScrollView>
</LinearLayout>
DO NOT use ListView inside ScrollView. ListView itself has a scroll property and you don't have to use another ScrollView to make it scroll. Use a LinearLayout instead.
Listview have own scrolling property ,so dont use within scrollview...
thanks