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
Related
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 very new to android designing and have some basic problems setting up a
simple layout:
Here are my goals:
I would like to have two buttons at the end of the Screen, each having the same size, filling the width of the screen.
A second LinearLayout should fill the rest of the screen, but all its content should be vertically centred.
I tried my best, but sometimes my bottom LinearLayout completely disappears, sometimes the bottom one looks fine, but the other layouts content isn't centred. I just don't know what to try out anymore. Here is what I got so far:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:id="#+id/editTableName"
android:hint="#string/TableNameHint" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:id="#+id/editTableDescripion"
android:hint="#string/TableDescriptionHint" />
<EditText
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:hint="#string/TablePasswordHint"
android:id="#+id/TablePassword"
android:fontFamily="sans-serif" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom">
<Button
android:id="#+id/BtnAddTable"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/BtnAddTable" />
<Button
android:id="#+id/BtnCancelAddTable"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/BtnCancelAddTable"
/>
</LinearLayout>
</LinearLayout>
I tried my best, but sometimes my bottom LinearLayout completely disappears, sometimes the bottom one looks fine, but the other layouts content isn't centred.
Your button is sometimes disappearing because your top sub Linearlayout's height is match_parent, which makes it fill the parent's height and cover the below views.
What you need is a layout structure like below:
Description:
So like the description in the picture, you can set weightsum to your parent layout and set the weight percentage to your sub layout. And wrap your button's Linearlayout using Relativelayout, so that you can get the buttons centered.
Codes:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="4">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:layout_gravity="center">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:id="#+id/editTableName"
android:hint="#string/TableNameHint" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:id="#+id/editTableDescripion"
android:hint="#string/TableDescriptionHint" />
<EditText
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:hint="#string/TablePasswordHint"
android:id="#+id/TablePassword"
android:fontFamily="sans-serif" />
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="3">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="bottom">
<Button
android:id="#+id/BtnAddTable"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/BtnAddTable" />
<Button
android:id="#+id/BtnCancelAddTable"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/BtnCancelAddTable" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
Update:
RelativeLayout has restrictions, it can only contain one child. So if you want to add more widgets in the bottom region then the best option for you is to use ConstraintLayout.
For Xamarin, you can follow the below steps:
Open Android SDK Manager in your VS:
Tools->Other->Check below versions of Constraintlayout and solver for Android like below and apply changes:
Install Xamrin.Android.Support.Constraint.Layout to your project through nuget package:
Then use the following xml codes:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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">
<EditText
android:id="#+id/editText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Name" />
<EditText
android:id="#+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Name"
app:layout_constraintTop_toBottomOf="#+id/editText" />
<EditText
android:id="#+id/editText3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#+id/editText2" />
<android.support.constraint.Guideline
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/guideline"
app:layout_constraintGuide_percent="0.6"
android:orientation="horizontal"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="#id/guideline"
android:orientation="horizontal">
<Button
android:id="#+id/button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button"/>
<Button
android:id="#+id/button2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button"/>
</LinearLayout>
</android.support.constraint.ConstraintLayout>
Short Explaination:
use android.support.constraint.Guideline with app:layout_constraintGuide_percent="0.6" to draw an invisible line to help position the buttons.(guideline will be 60% from the top screen). Then let buttons' stacklayout to be bottom of the guideline.
For detail usage of ConstraintLayout, please refer to Build responsive UI with ConstraintLayout.
Well, what you are trying to do is more achievable by just adding a Relative layout to the mix:
What you have to do is this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="6"
android:layout_gravity="center">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:id="#+id/editTableName"
android:hint="#string/TableNameHint" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:id="#+id/editTableDescripion"
android:hint="#string/TableDescriptionHint" />
<EditText
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:hint="#string/TablePasswordHint"
android:id="#+id/TablePassword"
android:fontFamily="sans-serif" />
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<Button
android:id="#+id/BtnAddTable"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/BtnAddTable" />
<Button
android:id="#+id/BtnCancelAddTable"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/BtnCancelAddTable"
/>
</LinearLayout>
</RelativeLayout>
</LinearLayout>
RelativeLayout:
The Official Android developer website says :
RelativeLayout is a view group that displays child views in relative positions. The position of each view can be specified as relative to sibling elements (such as to the left of or below another view) or in positions relative to the parent RelativeLayout area (such as aligned to the bottom, left or centre).
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.
I've been making my way through thenewboston's android tutorials and I'm stuck on number 35. There is supposed to be a scroll bar that takes up a weight of 30 at the top of the app. There are 6 textview/edittext field groups in the code, but I deleted 5 for simplicity. My problem is that all of the text and text boxes appear on the page and are not confined to the given weight (they all just show up on the page). Has anyone else had this problem or know how to fix it?
Please, I'm new to stackoverflow. If you think this is a stupid question, please explain to me why and how I can ask it better.
Here is what it looks like: http://imgur.com/gJmOgqk
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:weightSum="100" >
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="30" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10" >
</EditText>
</LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="40"
android:orientation="vertical" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="30"
android:orientation="vertical" >
<AnalogClock
android:id="#+id/analogClock1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
Welcome to StackOverflow!
Couple of things,
TheNewBoston made a mistake. Whenever you use weights you need
to set the height (or width) of that element to 0dp. I've changed
that in your code.
You shouldn't rely on the xml tool that eclipse has, you should always try to launch your app to some type of a device (emulator or preferably hardware)
I think by ScrollBar, you mean ScrollView? Because you're not doing anything to control the appearance of the scroll bar right now.
The parent of your layout (in this case) should match_parent, not wrap. (this is your main issue)
Also, you don't really need weightSum, android will just sum all the weights anyway.
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="30" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10" >
</EditText>
</LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="40"
android:orientation="vertical" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="30"
android:orientation="vertical" >
<AnalogClock
android:id="#+id/analogClock1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
You need to set the height of the views to 0dp if you are using weight. match_parent is causing problems. Also set the height of root view to match_parent. Try this, if I add many EditText's to the LinearLayout in the ScrollView it seems to give the effect you are after:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="100">
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="40">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"/>
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10">
</EditText>
</LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="30"
android:orientation="vertical">
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="30"
android:orientation="vertical">
<AnalogClock
android:id="#+id/analogClock1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
</LinearLayout>