Develop Reference

Linear Layout with Weights and Scroll View

I'm trying to create a responsive layout using weights but I also need to use a scroll view in this case.
This is my code at this moment:
<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"
tools:context=".EncyclopediaFragment">
<!--Linear Container-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="100">
<!--Title Box-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="20"
android:orientation="horizontal"
android:weightSum="100">
<!--Empty Space-->
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="5">
</LinearLayout>
<!--Text Box-->
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="95">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="#string/encyclopedia_mosntersLabel"
android:gravity="center"
android:textAlignment="viewStart"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="40">
</LinearLayout>
</LinearLayout>
but it needs to be like this.
That layout is suppose to be responsive with weights but at the same time I need to make it possible to scroll.
So my question is: how can I create a layout responsive with weights and at the same time a layout that can scroll down, just like in the picture?

If you have a determined number of 6 Monsters and 8 Towers, here is how you should organize your layout:
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Monsters"/>
<!-- the following LinearLayout should be repeated twice for 6 Monsters -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<MonsterView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<MonsterView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<MonsterView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
</LinearLayout>
...
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Towers"/>
<!-- the following LinearLayout should be repeated twice for 6 Towers -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TowerView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<TowerView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<TowerView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
</LinearLayout>
...
<!-- attention here for two Towers in the last row -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="3">
<TowerView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<TowerView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
</ScrollView>

The content inside your ScrollView should use wrap_parent, and if you want to stretch the content inside it set android:fillViewport="true". Try this:
<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"
tools:context=".EncyclopediaFragment">
<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">
<!--Linear Container-->
</RelativeLayout>
</ScrollLayout>
</RelativeLayout>

<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"
tools:context=".EncyclopediaFragment">
<!--Toolbar-->
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--Linear Container With Weights-->
</RelativeLayout>
</ScrollLayout>
</RelativeLayout>

LinearLayout inside ScrollView is autoscrolled to bottom

I've got a ScrollView which occupies the bottom half of the screen.
Inside this ScrollView a put a LinearLayout (vertical) with a lot of content.
When I start the activity, the content somewhy automatically scrolls itself down so that it starts at the top of the window. But I need it to start at the top of the ScrollView (i.e. at the center of the window).
What am I doing wrong?
<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"
tools:context="ru.intrigue.activities.EditActivity"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="250dp"
android:visibility="visible">
</RelativeLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/scrollView2"
android:background="#color/colorDarkBack">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp">
<!-- content -->
</LinearLayout>
</ScrollView>
</LinearLayout>

you can do like below:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.45"
android:orientation="vertical">
<ImageView
android:id="#+id/frag_home_iv_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:scaleType="fitXY"
android:src="#drawable/demo" />
</LinearLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.55"
android:fadeScrollbars="false">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.26"
android:gravity="center"
android:orientation="horizontal"
android:padding="#dimen/padding_5dp"
android:weightSum="1">
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.3"
android:src="#drawable/demo" />
<TextView
android:id="#+id/fragment_home_tv"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.7"
android:paddingLeft="#dimen/padding_5dp"
android:text="#string/demo"
android:textColor="#color/BlackColor" />
</LinearLayout>
</LinearLayout>
</ScrollView>
</LinearLayout>

Your problem solve by below code :
When open your activity call below code:
your_scroll_view.post(new Runnable() {
#Override
public void run() {
your_scroll_view.fullScroll(View.FOCUS_DOWN);
}
});
Best of luck

You can achieve the desired results by using layout_weight property:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<!-- your content here-->
</LinearLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<!-- your content here-->
</LinearLayout>
</ScrollView>
</LinearLayout>
Let me know if it helped you.

How can I implement from xml file layout inside the App using Android studio?

I'm beginner in Android. I want implement this graphic layout into an Android App:
How can I generate xml to implement the layout on the picture in Android?

below is your desired layout
<?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:weightSum="3"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_weight="1"
android:background="#C3C3C3"
android:layout_height="0dp">
<ImageView
android:background="#color/black_color"
android:layout_width="match_parent"
android:src="#drawable/ic_launcher"
android:layout_height="match_parent" />
</LinearLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_weight="2"
android:background="#FFC90E"
android:layout_height="0dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:textSize="20sp"
android:text="this is text view which is scrollable"
android:layout_height="match_parent" />
</LinearLayout>
</ScrollView>
</LinearLayout>
The total weight sum of the parent linearlayout is 3 and 1 is assigned to linear layout that contain imageview and 2 is to scroll view you can change the height of these two views by changing the values of 1 and 2 but the sum should not increase more then 3

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="200dp" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="sample text" />
</LinearLayout>
</ScrollView>

Design a round button over two colored layouts

I'm trying to design something like that :
Currently i'm having issue putting the button at "the middle" of the two layouts reunion point. Is there a way i do this ?
Thanks.

Here is a way to do it
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:background="#FF0000">
<!-- TO ADD CONTENT HERE -->
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:background="#FFFF00"
android:weightSum="0.5">
<!-- TO ADD CONTENT HERE -->
</LinearLayout>
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:background="#000000"
android:text="TEST"
android:textColor="#FFFFFF"/>
</RelativeLayout>
OUTPUT:
You can change the layout height from android:layout_weight="0.5"

you can use RelativeLayout for your parent and try adding twoLinearLayouts , one below another and set their heights, now place a Button in your RelativeLayout and set android:layout_centerInParent="true" for your Button .
and if you want to use weight for layouts, instead of adding two LinearLayout to your RelativeLayout, add one LinearLayout with weightSum=100 and then add two LinearLayouts to it with custom weights.
for your case , you have to do sth like this :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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:weightSum="100" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="20"
android:background="#f00" >
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="80"
android:background="#0f0" >
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="100" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="20" >
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="test" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>

android: design an activity with an scrollable part

my activity contains 4 section as follow:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"></LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"></LinearLayout>
<ScrollView>
<LinearLayout></LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"></LinearLayout>
</RelativeLayout>
what is the correct layout properties for scrollview?

Try 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="horizontal"></LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"></LinearLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<!-- put your scrolling stuff here it needs
to exceed the height of the view to scroll -->
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"></LinearLayout>
</LinearLayout>

I believe this should work..
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<!-- your layouts.. -->
<!-- layouts in here will be in the scrollview -->
</LinearLayout>
</ScrollView>
</LinearLayout>