Just ran into this problem recently. Cant find anything on web related to this. Does anyone have any idea? Studio crashed when the layout preview was loading. And this happens every time I try to see the preview. The layout doesn't have anything special, it consist of android design support tags. Would love to know what's going wrong. I'm using API 23
Layout file:
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/root_coordinator"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways">
<android.support.v7.widget.Toolbar
android:id="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#color/colorAccent"
app:layout_collapseMode="pin"
app:tabIndicatorColor="#color/colorPrimary"
app:tabMode="fixed"
app:tabSelectedTextColor="#android:color/white"
app:tabTextColor="#EEE" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_margin="16dp"
android:src="#drawable/calendar_white"
app:borderWidth="0dp"
app:fabSize="normal" />
</android.support.design.widget.CoordinatorLayout>
Related
Back button disappear even though i called layout below the recycler view, I can show the button if i set the height manually but i need to use "wrap_content" because not all devices have the same size. Im trying to add a back button on the bottom after the recycler view. pls help on why it dosent show.. Im new in android studio ive tried changing the layouts but dosent work..
<?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"
tools:context=".MainActivity"
android:background="#color/colorLight">
<SearchView
android:id="#+id/searchView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#drawable/search_view_bg"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:queryHint="Search"
android:iconifiedByDefault="false"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/viewMain"
android:layout_below="#id/searchView"
android:layout_marginTop="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</androidx.recyclerview.widget.RecyclerView>
<Button
android:id="#+id/back"
android:layout_width="187dp"
android:layout_height="50dp"
android:text="Go Back"
android:layout_marginTop="5dp"
android:textStyle="bold"
android:layout_below="#id/viewMain"
android:textSize="14sp"
android:fontFamily="#font/varela_round"
android:layout_centerHorizontal="true"
android:background="#drawable/round_back_white"
/>
</RelativeLayout>
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/searchView">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/viewMain"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp">
</androidx.recyclerview.widget.RecyclerView>
<Button
android:id="#+id/back"
android:layout_width="187dp"
android:layout_height="50dp"
android:layout_below="#id/viewMain"
android:layout_centerHorizontal="true"
android:layout_marginTop="5dp"
android:background="#drawable/round_back_white"
android:fontFamily="#font/varela_round"
android:text="Go Back"
android:textSize="14sp"
android:textStyle="bold" />
</RelativeLayout>
</androidx.core.widget.NestedScrollView>
#xenxen101219 After SearchView Use NestedScrollView
Hi sorry I am having difficulty in getting my layout to been seen when I run the application
I don't see anything when I run my application
here is my XML code
<?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">
<LinearLayout
android:layout_width="409dp"
android:layout_height="729dp"
android:layout_marginStart="1dp"
android:layout_marginLeft="1dp"
android:layout_marginTop="1dp"
android:layout_marginEnd="1dp"
android:layout_marginRight="1dp"
android:layout_marginBottom="1dp"
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/edtName"
android:layout_width="match_parent"
android:layout_height="44dp"
android:text="Name" />
<ScrollView
android:id="#+id/scrlText"
android:layout_width="match_parent"
android:fillViewport="true"
android:isScrollContainer="true"
android:layout_height="638dp">
<LinearLayout
android:id="#+id/lltext"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" />
</ScrollView>
<LinearLayout
android:id="#+id/hllsend"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<EditText
android:id="#+id/edtInput"
android:layout_width="159dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textPersonName" />
<Button
android:id="#+id/btnSend"
android:layout_width="10dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button" />
</LinearLayout>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
How do I make my items visible when running the application?
In your simple layout code, there are many problems. For example:
1.
android:layout_width="409dp"
android:layout_height="729dp"
such android screen size is hard to get. And in Android layout principal, you'd better use relative layout rather than such hard code size. Here you can replace it with match_parent or wrap_content.
In the same way.
android:layout_height="638dp"
totally over screen height ,make no space for hllsend to show.
I suggest you learn some android layout principal before write android app.
It's not a good practice to add LinearLayout in ConstraintLayout and I think it's the issue with your code you just need to make you LinearLayout as a parent and remove your ConstraintLayout.
NOTE: please do necessary adjustment.
Please check quick example for your code I didn't run this.
<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">
<LinearLayout
android:layout_width="409dp"
android:layout_height="729dp"
android:layout_marginStart="1dp"
android:layout_marginLeft="1dp"
android:layout_marginTop="1dp"
android:layout_marginEnd="1dp"
android:layout_marginRight="1dp"
android:layout_marginBottom="1dp"
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/edtName"
android:layout_width="match_parent"
android:layout_height="44dp"
android:text="Name" />
<ScrollView
android:id="#+id/scrlText"
android:layout_width="match_parent"
android:fillViewport="true"
android:isScrollContainer="true"
android:layout_height="638dp">
<LinearLayout
android:id="#+id/lltext"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" />
</ScrollView>
<LinearLayout
android:id="#+id/hllsend"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<EditText
android:id="#+id/edtInput"
android:layout_width="159dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textPersonName" />
<Button
android:id="#+id/btnSend"
android:layout_width="10dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
put all your xml codes in LinearLayout and remove ConstraintLayout . thats may helps.
I am writing a code with a few nested layouts. As I have used material design I also wanted to set elevation. Though elevation was working fine with the elements of outermost layout, the contents of the inner LinearLayout (nested inside a CoordinatorLayout) is not casting shadows despite setting elevation.
<?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="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/white"
tools:context="com.joblesscoders.aditya.todolist.HomeActivity">
<TextView
android:layout_width="match_parent"
android:id="#+id/count"
android:text="Main Activity"
android:textSize="20dp"
android:elevation="5dp"
android:textColor="#color/white"
android:gravity="center_vertical"
android:background="#color/colorPrimary"
android:layout_height="50dp" />
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/cly"
android:background="#color/white"
xmlns:app="http://schemas.android.com/apk/res-auto"
>
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/sv"
android:background="#color/white"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/lly"
android:background="#color/white"
android:orientation="vertical">
<TextView
android:text="Task here"
android:id="#+id/tid"
android:textSize="40sp"
android:layout_marginBottom="5dp"
android:layout_width="match_parent"
android:elevation="4dp"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:layout_height="wrap_content" />
<TextView
android:text="Task here"
android:id="#+id/tid"
android:textSize="40sp"
android:layout_marginBottom="5dp"
android:layout_width="match_parent"
android:elevation="4dp"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:layout_height="wrap_content" />
<TextView
android:text="Task here"
android:id="#+id/tid"
android:textSize="40sp"
android:layout_marginBottom="5dp"
android:layout_width="match_parent"
android:elevation="4dp"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:layout_height="wrap_content" />
<!-- More TextViews to suit purpose -->
</LinearLayout>
</ScrollView>
<android.support.design.widget.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:src="#drawable/ic_add2"
app:rippleColor="#color/white"
android:id="#+id/fab"
android:layout_gravity="bottom|end"
/>
</android.support.design.widget.CoordinatorLayout>
</LinearLayout>
This code in android studio designer view produces the expected result i.e.
the TextViews displaying "Task here" have required shadows, but as soon I run it on a android 6.O custom device, the page becomes:
I would be thankful if anybody corrects me or advices on the dos and don'ts. I am extremely new to android programming, and this is my first code. So please bear with me if I have made any really very silly mistake.
I'm trying to send the white image in the back of my button and text in Relative Layout. Here is the code:
<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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.example.sahni.lightspeed.starting_screen"
tools:showIn="#layout/activity_starting_screen"
android:background="#drawable/q1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/title"
android:textSize="70sp"
android:id="#+id/title"
android:textColor="#00e1ff"
android:layout_centerHorizontal="true"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/start_button"
android:id="#+id/button"
android:textSize="20sp"
android:layout_centerInParent="true"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:onClick="buttonOnClick"/>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/imageView"
android:layout_alignLeft="#+id/title"
android:layout_alignStart="#+id/title"
android:layout_below="#+id/title"
android:background="#ffffff" />
</RelativeLayout>
The layout sets for the image aren't correct, but I don't know which ones to use to get the output I want. A screenshot of current output:
Am I using the best layout for this problem ?
Can someone please explain to me how the solution works too?
Just move to first ImageView in your RelativeLayout :
<RelativeLayout ... >
<ImageView ... />
<TextView ... />
<Button ... />
</RelativeLayout>
Your ImageView has android:layout_below="#+id/title" property so it' always below your title, so it can't be in background of your title.
Good day can you help me correct this one?
In my activity_main.xml, I used Coordination Layout So that my Appbar will work.
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
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:fitsSystemWindows="true"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.eccp.projects.ecosavers.ecosavers.activities.eco_detailed_information">
<!--COORDINATOR LAYOUT-->
<android.support.design.widget.CoordinatorLayout
android:id="#+id/coordinator_layout"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:background="#ffffff">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark">
<include
android:id="#+id/toolbar"
layout="#layout/tool_bar"
/>
<android.support.design.widget.TabLayout
android:id="#+id/tablayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="4dp"
app:tabMode="fixed"
app:tabGravity="fill"/>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_weight="1"
android:background="#ffffff"/>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="start"
app:headerLayout="#layout/header"
app:menu="#menu/drawer"/>
And In my First Tab my - Organizations feeds don't work, it stuck and will not me allow to slide up to show up the feeds. But sometimes it will work sliding up but, there is an overlapping of layout. I just include my cardview_items.xml as an overview on how it looks like.
<RelativeLayout
android:orientation="vertical"
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:scrollbarAlwaysDrawVerticalTrack="true"
android:fitsSystemWindows="true"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.eccp.projects.ecosavers.ecosavers.activities.eco_detailed_information">
<!--COORDINATOR LAYOUT-->
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:layout_gravity="fill_vertical"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:layout_marginTop="1dp">
<!--Dummy Value 1-->
<include
android:id="#+id/card_item"
layout="#layout/eco_events_cardview" />
<include
android:id="#+id/card_item"
layout="#layout/eco_events_cardview" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
I really need your help. I'm stuck with this one.
Thank you in advance.
It should be fairly easy to fix:
Remove ViewPager from AppBarLayout
Add ViewPager as a sibling to a AppBarLayout and add for it app:layout_behavior="#string/appbar_scrolling_view_behavior" and set layout_width & layout_height to match_parent
So your layout should look like afterwards:
<android.support.design.widget.CoordinatorLayout
....>
<android.support.design.widget.AppBarLayout
.....>
<include
android:id="#+id/toolbar"
layout="#layout/tool_bar"/>
<android.support.design.widget.TabLayout
.../>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
.....
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
I hope, it helps.