Develop Reference

Fixing siblings to bottom with expandable edittext

I have a relative layout that sits at the bottom of screen
It has 3 elements horizontal
firstElement - fixed width
middleElement - width as fill_parent
last element - fixed width
MiddleElement is edit text with maxLines = 5. It starts with fixed width and then expands as typed.
With the layout below, I use center_vertical for left/right and they adjust accordingly to center.
My goal is to keep left/right elements to bottom while the edit text expands. I could not make it work,
Below is just one example of layout I tried. I have tried align_parentBottom, layout_gravity=bottom, gravity=bottom.
I could not make it work.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/bottomComponent"
android:background="#color/red"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:minHeight="50dp">
<LinearLayout
android:background="#color/green_theme"
android:id="#+id/firstElement"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:gravity="center"
android:clickable="true"
android:layout_width="50dp"
android:layout_height="50dp">
<LinearLayout
android:gravity="center"
android:orientation="vertical"
android:layout_gravity="center"
android:layout_width="20dp"
android:layout_height="20dp">
<ImageView
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:scaleType="fitCenter"
android:src="#drawable/firstImage" />
</LinearLayout>
</LinearLayout>
<EditText
android:id="#+id/middleElement"
android:layout_centerVertical="true"
android:layout_marginTop="7.5dp"
android:layout_marginBottom="7.5dp"
android:maxLines="5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minHeight="35dp"
android:layout_toLeftOf="#+id/lastElement"
android:layout_toRightOf="#+id/firstElement"
android:paddingLeft="6dp"
android:paddingRight="0dp"/>
<Button
android:id="#+id/lastElement"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_width="65dp"
android:layout_height="50dp"
android:textColor="#color/title_gray"
android:background="#color/green_theme"
android:textSize="18dp"
android:textAllCaps="false"
android:text="#string/lastElement" />
</RelativeLayout>

Ok this post solved my issue Android LinearLayout fill-the-middle
What I did not know that for linearlayout layout_weight=1 will work as fill_parent in relative layout

Placing ImageView to the left of centered buttons

I am trying to place a ImageView object to the left of a linear layout object (that is a parent of two buttons). I basically want two buttons centered horizontally with the screen with an image place to the left of the centered buttons. I still want the buttons to remain centered horizontally, the placed image view should not be centered, just merely to the side.
Any suggestions would be really great. I may have been approaching my problem with the wrong layouts but here is what I have tried:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:id="#+id/gameSettingsContainer"
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:fitsSystemWindows="true"
tools:context="com.example.vb1115.multchoicequestion.LaunchScreen"
android:orientation="vertical"
android:gravity="center_horizontal">
<LinearLayout
android:id="#+id/buttonContainer"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ToggleButton android:id="#+id/mathButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textOff="Math"
android:textOn="Math"
android:text="Math"/>
<ToggleButton android:id="#+id/bioButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textOff="Biology"
android:textOn="Biology"
android:text="Biology"/>
</LinearLayout>
<ImageView
android:id="#+id/animatedArrow"
android:src="#mipmap/green_arrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="#id/buttonContainer"/>
</RelativeLayout>

Although I don't have my Android Studio to test, I can already make a few assumptions...
1st, no need to use android:orientation="vertical" nor android:gravity="center_horizontal" for your root RelativeLayout...
2nd, to position the 2 children elements use android:layout_centerHorizontal for the LinearLayout, and keep android:layout_alignParentLeft for your ImageView...
This should begin to be a bit better... The main idea is that in a RelativeLayout it's usually more efficient to let the children decide their position... Hope this will help.

Here solution
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:id="#+id/gameSettingsContainer"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<LinearLayout
android:id="#+id/buttonContainer"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_centerHorizontal="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ToggleButton
android:id="#+id/mathButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Math"
android:textOff="Math"
android:textOn="Math"/>
<ToggleButton
android:id="#+id/bioButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Biology"
android:textOff="Biology"
android:textOn="Biology"/>
</LinearLayout>
<ImageView
android:id="#+id/animatedArrow"
android:layout_toStartOf="#+id/buttonContainer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#mipmap/green_arrow"/>
</RelativeLayout>

Without having android studios to test:
To center the LinearLayout within the RelativeLayout use the Layout_centerHorizontal="true"
<LinearLayout
android:id="#+id/buttonContainer"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true">
For each of the buttons to be distributed evenly and centered use layout_weight="1" (so each have the same weight) and gravity="center_horizontal"
<ToggleButton android:id="#+id/mathButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textOff="Math"
android:textOn="Math"
android:text="Math"
android:layout_weight="1"
android:layout_gravity="center_horizontal"/>
<ToggleButton android:id="#+id/bioButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textOff="Biology"
android:textOn="Biology"
android:text="Biology"
android:layout_weight="1"
android:layout_gravity="center_horizontal"/>
Then place the ImageView to layout_toStartOf your buttonContainer
<ImageView
android:id="#+id/animatedArrow"
android:src="#mipmap/green_arrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toStartOf="#+id/buttonContainer">

Android textview not fit for all the screen

i developed one of application and now am facing problem that it show perfectly in my nexus7 but when i viewing other device screens the text view not fitting
i want all the screen as same as nexus7. its anyone can know the better solution for this please. unfortunately i don't have enough reputation so i cant post any screenshot here this my xml code
<?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_gravity="center"
android:background="#color/white">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:paddingBottom="16dp"
android:paddingLeft="64dp"
android:paddingRight="64dp"
android:paddingTop="16dp" >
<ImageView
android:id="#+id/pointer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_centerInParent="true"
android:src="#drawable/point" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="bottom"
android:paddingBottom="16dp"
android:paddingLeft="64dp"
android:paddingRight="64dp"
android:paddingTop="16dp" >
<TextView
android:id="#+id/name2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="97dp"
android:text="#string/numberusers"
android:textColor="#color/no_users"
android:textSize="30sp"
android:textStyle="bold" />
<TextView
android:id="#+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="19dp"
android:text="#string/number"
android:textColor="#color/no_users"
android:textSize="30sp"
android:textStyle="bold" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingBottom="16dp"
android:paddingLeft="64dp"
android:paddingRight="64dp"
android:paddingTop="355dp" >
<ListView
android:id="#android:id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
android:clickable="false" >
</ListView>
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>

I m Not Sure But Remove Relative Layout And Use Linear Layout Its More Better Than Relative

The two textViews that you have in your layout use android:layout_width="wrap_content".
Use android:layout_width="match_parent" in the one you want to fill the screen.

every children relative layout in your xml has height and width as match_parent. Do you need it? Because if first layout have height as match_arent than it will not leave space for others. Try using "wrap_content" as height for inner relative layouts.

If I got your question, you have to set the width of the textview as
android:layout_width="match_parent"
But in my opinion, the hole screen is wrong. Use a LinearLayout (vertical or horizontal) and place there your first two textviews. And if you want more accuracy use the gravity feature in each text view and of course set a layout_weight for each TextView and weightSum in the LinearLayout.

Android: Align Parent Bottom + Bottom margin

I've used a relative layout and I want to set the button at bottom of the screen, However this puts it all the down to the bottom and I would like to have some margin so it there's some space between the end of the screen/view and the button. However whatever I do the button margin just doesn't do anything on 2.1+ for some reason. The relative layout contains a background so I cant but the margin on that.
Anyone know a fix for this?
<?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_marginBottom="0dp"
android:background="#drawable/background" >
<Button
android:id="#+id/confirm_mobile_button_next"
android:layout_width="fill_parent"
android:layout_height="40dip"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="false"
android:layout_centerHorizontal="false"
android:layout_centerInParent="false"
android:layout_margin="15dp"
android:background="#drawable/button_shape_selector"
android:paddingLeft="10dip"
android:paddingRight="10dip"
android:text="#string/confirm_mobile_no_continue"
android:textColor="#color/white"
android:textStyle="bold" />
</RelativeLayout>

You can simply add a padding to the RelativeLayout instead of a margin to the Button, e.g. android:paddingBottom="15dp".
In general I'm always testing my layout in the Exclipse preview using API Level 8 setting. This gives quite accurate results for most devices, including ICS and JB.

The other thing you can do is put a View that's aligned to the bottom of the RelativeLayout, and set its height to the bottom margin you would want to use (or simply specify a value for layout_marginBottom) like so:
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/some_image"
android:adjustViewBounds="true"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Some Overlay"
android:padding="3dip"
android:gravity="center_vertical|center_horizontal"
android:layout_above="#+id/empty_view"
android:layout_marginBottom="35dip"
/>
<View
android:id = "#+id/empty_view"
android:layout_height = "30dip"
android:layout_width = "match_parent"
android:visibility="invisible"
android:layout_alignParentBottom="true"
/>
</RelativeLayout>
This example fills the RelativeLayout with the ImageView, and positions a TextView over the ImageView.

Yu can use translateY attribute
translateY="-16dp"
Final code
<?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_marginBottom="0dp"
android:background="#drawable/background">
<Button
android:id="#+id/confirm_mobile_button_next"
android:layout_width="fill_parent"
android:layout_height="40dip"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="false"
android:layout_centerHorizontal="false"
android:layout_centerInParent="false"
android:layout_margin="15dp"
android:background="#drawable/button_shape_selector"
android:paddingLeft="10dip"
android:paddingRight="10dip"
android:text="#string/confirm_mobile_no_continue"
android:textColor="#color/white"
android:textStyle="bold"
android:translateY="-16dp" />
</RelativeLayout>

only working solution suggested by #franny zhao is below.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<FrameLayout
android:id="#+id/fl_layout"
android:layout_alignParentBottom="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="#+id/tv_layout"
android:text="hello world"
android:layout_marginBottom="50dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</FrameLayout>
</RelativeLayout>
If you add padding to the bottom aligned view as suggested by others, the view background will also extend. If you have colored background then the view will look like it is glued to the bottom. Padding and margin are entirely different, padding is part of view, but margin leaves space between views.

I think the best way is to set android:layout_alignParentBottom in XML
then in java code behind:
Button confirm_mobile_button_next = (Button)findViewById(R.id.confirm_mobile_button_next)
and
confirm_mobile_button_next.setTransitionY(-THE_VALUE) or setTransitionX(-THE_VALUE)

I think the best way is to set:
<...
android:layout_alignParentBottom="true" />
then in java code behind:
Button confirm_mobile_button_next = (Button)findViewById(R.id.confirm_mobile_button_next)
confirm_mobile_button_next.setTransitionY(-THE_VALUE) or setTransitionX(-THE_VALUE)

You can use a ViewGroup(for example, FrameLayout or LinearLayout) to wrap the view. Set alignParentBottom in the outside ViewGroup, then marginBottom can work in the inside View.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<FrameLayout
android:id="#+id/fl_layout"
android:layout_alignParentBottom="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="#+id/tv_layout"
android:text="hello world"
android:layout_marginBottom="50dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</FrameLayout>
</RelativeLayout>

Since I stumbled upon this issue, and saw no answers fit to my situation I started thinking for half a second and resolved it by setting a negative margin on the view inside the RelativeLayout sample:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_marginTop="-8dp"
android:layout_marginStart="-8dp">
</RelativeLayout>
This should prove useful to some people.

Well this is 2022, but if you still are not using ConstraintLayout for some reason, like the one legacy project code I am fixing, use this property for a Bottom margin type visual.
android:translationY="-8dp"
and your code should look like this (in my case this a FAB in Relative Layout)
<com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
android:id="#+id/cart_check_out_btn"
style="#style/FABThemeDark"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginHorizontal="16dp"
android:layout_marginVertical="16dp"
android:text="#string/cart_check_out_btn"
android:textAllCaps="false"
android:translationY="-8dp" />
And it will work like this

Try in this way :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="17dp"
android:text="Button" />

Here is another alternative. If you want to set the child's margin instead of parent's padding, you should set the value of android:layout_marginTop to double of the desired margin and then set the android:layout_centerVertical to true. Top margin is given double the desired value to compensate the bottom margin. That way you will have an equal top and bottom margin around the child view.
<Button
android:id="#+id/confirm_mobile_button_next"
android:layout_width="fill_parent"
android:layout_height="40dip"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="false"
android:layout_centerVertical="true"
android:layout_centerInParent="false"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginTop="30dp"
android:background="#drawable/button_shape_selector"
android:paddingLeft="10dip"
android:paddingRight="10dip"
android:text="#string/confirm_mobile_no_continue"
android:textColor="#color/white"
android:textStyle="bold" />
It will give you the same result.

problem with android layout

I have the following layout for a custom title bar. However, the problem is this: both the imageview and the imagebutton are coming at the centre. I was expecting the imagebutton to be at the extreme right. Can anyone kindly let me know what I did wrong here ? Thanks.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="35dip"
android:gravity="center_vertical"
android:paddingLeft="5dip"
android:background="#323331">
<ImageView
android:src="#drawable/header"
android:id="#+id/header"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:gravity="center_horizontal">
</ImageView>
<ImageButton
android:id="#+id/saveButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="#drawable/savetap"
android:background="#null"
android:gravity="right"
android:layout_above="#+id/header">
</ImageButton>
</LinearLayout>

Your layout is only 35dip tall, so pressumibly if you show your ImageView the ImageButton gets positioned outside the screen. Consider changing your layout_height to wrap_content, if appropiate.

You're using a vertically oriented LinearLayout, all View will be presented in a vertical fashion. Use a RelativeLayout so that you'll have more control over where Views are positioned. If you'd still like to use a LinearLayout, you'll have to use horizontal orientation so that the Views can be on the same "line".
Use layout_gravity to layout the item to the right, just gravity is used by the contents of the view.

At first if width is set to fill parent it really fills parent so it use all the width.
Second: why not RelativeLayout? It provides more options and control.
Maybe this is what you looking for:
`
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="35dip"
android:gravity="center_vertical"
android:paddingLeft="5dip"
android:background="#323331">
<ImageView
android:src="#drawable/header"
android:id="#+id/header"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="left">
</ImageView>
<ImageButton
android:id="#+id/saveButton"
android:layout_height="wrap_content"
android:src="#drawable/savetap"
android:background="#null"
android:layout_marginLeft="20dp"
android:layout_width="wrap_content" android:layout_alignParentRight="true">
</ImageButton>
</RelativeLayout>
`