Currently, I have the following bottom log in button.
When button is not being pressed
When button is being pressed
The XML looks like this
<LinearLayout
android:background="?attr/welcomeBottomNavBarBackground"
android:orientation="horizontal"
android:id="#+id/sign_in_bottom_nav_bar"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button
style="?android:attr/buttonBarButtonStyle"
android:id="#+id/sign_in_button"
android:layout_width="0dp"
android:width="0dp"
android:layout_weight="1.0"
android:layout_height="48dp"
android:gravity="center"
android:layout_gravity="center"
android:enabled="true"
android:textAllCaps="true"
android:text="#string/log_in" />
</LinearLayout>
I would like to remove the padding (Or should I call it margin? Please refer to my bottom most p/s section) around button when it is being pressed.
I look at How to remove padding around buttons in Android?
I had tried
<Button
...
...
android:minHeight="0dp"
android:minWidth="0dp" />
It doesn't work and has no effect.
I further try
<Button
...
...
android:background="#null"
android:minHeight="0dp"
android:minWidth="0dp" />
No more padding when pressed. However, the material designed pressed visual effect will gone too.
May I know what is the best way to remove button padding during pressed, yet retain the material designed pressed visual effect?
P/S
I don't really know whether I should call it padding or margin. What I wish to achieve is that, when we press on the bottom region, press visual effect change should be covered entire 100% bottom bar region (#+id/sign_in_bottom_nav_bar), instead of current 95% bottom bar region.
A standard button is not supposed to be used at full width which is why you experience this.
Background
If you have a look at the Material Design - Button Style you will see that a button has a 48dp height click area, but will be displayed as 36dp of height for...some reason.
This is the background outline you see, which will not cover the whole area of the button itself.
It has rounded corners and some padding and is supposed to be clickable by itself, wrap its content, and not span the whole width at the bottom of your screen.
Solution
As mentioned above, what you want is a different background. Not a standard button, but a background for a selectable item with this nice ripple effect.
For this use case there is the ?selectableItemBackground theme attribute which you can use for your backgrounds (especially in lists).
It will add a platform standard ripple (or some color state list on < 21) and will use your current theme colors.
For your usecase you might just use the following:
<Button
android:id="#+id/sign_in_button"
style="?android:attr/buttonBarButtonStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Login"
android:background="?attr/selectableItemBackground" />
<!-- /\ that's all -->
There is also no need to add layout weights if your view is the only one and spans the whole screen
If you have some different idea on what your background should look like you have to create a custom drawable yourself, and manage color and state there.
As simple, use the inset property like:
android:insetTop="0dp"
android:insetBottom="0dp"
android:insetRight="0dp"
android:insetLeft="0dp"
In styles.xml
<style name="MyButtonStyle" parent="Base.Widget.AppCompat.Button">
<item name="android:background">#drawable/selector</item>
<item name="android:textColor">#android:color/black</item>
</style>
In values/drawable:
my_drawable.xml
<?xml version="1.0" encoding="utf-8"?>
<shape android:shape="rectangle" xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="2dp" />
<!-- specify your desired color here -->
<solid android:color="#9e9b99" />
</shape>
selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:drawable="#drawable/my_drawable"/>
<item android:state_pressed="true" android:drawable="#drawable/my_drawable"/>
<item android:drawable="#android:color/transparent"/>
</selector>
In values/drawable-v21:
my_drawable.xml
<?xml version="1.0" encoding="utf-8"?>
<shape android:shape="rectangle"
android:tint="?attr/colorButtonNormal"
xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="2dp" />
<solid android:color="#android:color/white" />
</shape>
selector.xml
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="?attr/colorControlHighlight">
<item android:id="#android:id/mask"
android:drawable="#drawable/my_drawable" />
</ripple>
In layout:
<Button
android:id="#+id/button"
style="#style/MyButtonStyle"
android:layout_width="match_parent"
android:layout_height="100dp"
android:text="Test"/>
Result on API 19:
Result on API 21:
Source code
I think the best solution to solve that is create your own Ripple Effect. The padding when you press the button is respecting the default Ripple Effect of the component.
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="?attr/colorControlHighlight">
<item android:drawable="?attr/colorPrimary"/>
</ripple>
Or you can try change the style of your button to style="?android:textAppearanceSmall"
Remember: This effect is only shown on Android Lollipop (API 21) or higher.
I have been through what you are going through. Long story short, you just cannot do it cleanly with a <Button> tag alone, while ensuring backwards compatibility.
The simplest and the most widely practiced method is to use a <RelativeLayout> underlay, around a <Button>.
Button Code:
<RelativeLayout
android:id="#+id/myButtonUnderlay"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:visibility="visible">
<Button
android:id="#+id/myButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/selectableItemBackgroundBorderless"
android:text="I am as cute as a Button"/>
</RelativeLayout>
Wherever you need to use a button, you use this complete code.
Here is the breakdown:
OnClick events will be hooked to myButton.
Control dimensions of your button, by changing attributes of myButtonUnderlay.
In myButton, android:background="?attr/selectableItemBackgroundBorderless". This will make it a transparent button with just the text, and backwards compatible ripples.
In myButtonUnderlay, you will do all the other background applications, like setting the color of the button, margins, paddings, borders, gradients, and shadows etc.
If manipulation of the button's visibility (programmatic or not) is wish, you do it on myButtonUnderlay.
Note: To ensure backwards compatibility, make sure that you use
android:background="?attr/selectableItemBackgroundBorderless", and NOT
android:background="?android:attr/selectableItemBackgroundBorderless"
As #David Medenjak answer you can read the Google Material design Button-style to its developer site. Use button style as #David Medenjak explained in his answer. You can also do by the following way also
It is not a padding or margin but it is actually background effect of button.
If you want to remove that then you can do as following.
Option 1:
Step 1: Put the below code in styles.xml
<style name="myColoredButton">
<item name="android:textColor">#FF3E96</item>
<item name="android:padding">0dp</item>
<item name="android:minWidth">88dp</item>
<item name="android:minHeight">36dp</item>
<item name="android:elevation">1dp</item>
<item name="android:translationZ">1dp</item>
<item name="android:background">#FF0000</item>
</style>
Step 2:Create a new XML file under drawables folder and add the following code: I named my XML file as button_prime.xml
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="#color/colorPrimary">
<item>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="1dp" />
<solid android:color="#8B8386" />
</shape>
</item>
</ripple>
Step 3: Use the style and drawable in your Button as follows.
<Button
style="#style/myColoredButton"
android:layout_width="250dp"
android:layout_height="50dp"
android:text="Cancel"
android:gravity="center"
android:background="#drawable/button_prime"
android:colorButtonNormal="#3578A9" />
Option 2:
With the Support Library v7, all the styles are actually already defined and ready to use, for the standard buttons, all of these styles are available.So you can set your button style like this
<Button
style="#style/Widget.AppCompat.Button.Borderless"
android:layout_width="match_parent"
android:layout_height="50dp"
android:text="BUTTON"
android:gravity="center"
android:minHeight="0dp"
android:minWidth="0dp"
android:background="#color/colorAccent"/>
For more detail of Button style please check this answer
I think you will check this answer also. I hope you will get your solution.
The padding and margin may be a result of the original resources used in the button.
So you could try to change the resources used, using a selector:
<selector
xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="#drawable/btn_action_hover" />
<item android:state_selected="true" android:drawable="#drawable/btn_action_hover" />
<item android:state_focused="true" android:drawable="#drawable/btn_action_hover" />
<item android:drawable="#drawable/btn_action_normal" />
</selector>
That would change the default images/shapes for your buttons, so you could try using drawables and set every item to a drawable. The drawable being either a bitmap, or a .xml file(style file) defining the look of the button in its current state. I assume there still are some native styles included even though you have set the button-style yourself. This may be because you aren't using a custom theme. So the issue may also be solved by defing
theme="#style/myNewTheme"
where myNewTheme is your theme, and it should have any parents(parent="" should not be defined).
Take any given theme(designed by Google/Android, for an instance Theme.AppCompat.[name]), it does also come with a buttonStyle. This is a part of Theme.Holo.Light:
<!-- Button styles -->
<item name="buttonStyle">#style/Widget.Holo.Light.Button</item>
<item name="buttonStyleSmall">#style/Widget.Holo.Light.Button.Small</item>
<item name="buttonStyleInset">#style/Widget.Holo.Light.Button.Inset</item>
<item name="buttonStyleToggle">#style/Widget.Holo.Light.Button.Toggle</item>
<item name="switchStyle">#style/Widget.Holo.Light.CompoundButton.Switch</item>
<item name="mediaRouteButtonStyle">#style/Widget.Holo.Light.MediaRouteButton</item>
<item name="selectableItemBackground">#drawable/item_background_holo_light</item>
<item name="selectableItemBackgroundBorderless">?attr/selectableItemBackground</item>
<item name="borderlessButtonStyle">#style/Widget.Holo.Light.Button.Borderless</item>
<item name="homeAsUpIndicator">#drawable/ic_ab_back_holo_light</item>
As you see, this theme defines how your buttons will look/work in basic features. You can override parts of it, but you haven't overridden the important parts(being buttonStyle and similar). So if you create a new theme yourself and style it to your liking and set the theme(using theme="themename") and that theme does not inherit any theme, you should be able to style your buttons to your liking without having to worry about the default styles in the theme
Basically:
calling padding/margin="0dp" will not help. The default drawable defined by the theme has this in the button drawable, meaning you cannot change it. So you have to either change the button style, or change the theme completely. Make sure that theme does not have any parents, because many themes define the button style. You do not want the button style defined by the theme.
The best solution these days is just to use MaterialButton in place of Button.
Note: MaterialButton is visually different from Button and AppCompatButton. One of the main differences is that AppCompatButton has a 4dp inset on the left and right sides, whereas MaterialButton does not. To add an inset to match AppCompatButton, set android:insetLeft and android:insetRight on the button to 4dp, or change the spacing on the button’s parent layout.
When replacing buttons in your app with MaterialButton, you should inspect these changes for sizing and spacing differences.
Source: https://material.io/develop/android/components/material-button/
I'd suggest you taking a look at this just in case before all.
Then, if not working i'd suggest you to create your own style (like azizbekian suggest)using android xml drawables, and drawable states to differentiate pressed/notpressed.
I think using your own style may be the best answer as it will further give you more control on how your app is displaying, but using android default themes and styles also allows the user to have custom styles which is a good idea. However, you cannot test every custom style so you cannot check that your app will display correctly on ALL custom styles, and therefore may encounter problems with some.
Set the Button background as android:background="?selectableItemBackground"
<LinearLayout
android:background="?attr/welcomeBottomNavBarBackground"
android:orientation="horizontal"
android:id="#+id/sign_in_bottom_nav_bar"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button
style="?android:attr/buttonBarButtonStyle"
android:background="?selectableItemBackground"
android:id="#+id/sign_in_button"
android:layout_width="0dp"
android:width="0dp"
android:layout_weight="1.0"
android:layout_height="48dp"
android:gravity="center"
android:layout_gravity="center"
android:enabled="true"
android:textAllCaps="true"
android:text="#string/log_in" />
</LinearLayout>
After trying lots of solution, Finally I came to a conclusion that with tag alone we can't achieve this. to remove this unwanted space around button my solution is as below:
<RelativeLayout
android:id="#+id/myButtonUnderlay"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:visibility="visible">
<Button
android:id="#+id/save_button"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="-5dp"
android:layout_marginBottom="-5dp"
android:layout_above="#+id/content_scrollview"
android:layout_gravity="bottom"
android:background="#drawable/ripple_theme"
android:enabled="true"
android:text="SetUp Store"
android:textColor="#fff"
android:textSize="18sp"
android:visibility="gone"
tools:visibility="visible"
style="#style/MediumFontTextView" />
</RelativeLayout>
1.add a drawable resource file named maybe button_background.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<shape>
<solid android:color="#ff0000"/>
<stroke android:width="5dp" android:color="#00ff00"/>
</shape>
</item>
<item>
<shape>
<solid android:color="#00ff00"/>
</shape>
</item>
</selector>
2.Use the button_background.xml as the button background, done!
github
blog
I don't really know whether I should call it padding or margin.
The button is enacting surface elevation for providing visual feedback in response to touch. It is one of two feedbacks used for surface reaction; the first one being the ripple effect. For example, a raised button has resting state elevation of 2dp and pressed state elevation of 8dp (See raised button under Shadows). The button meets the finger as it touches the surface.
May I know what is the best way to remove button padding during pressed, yet retain the material designed pressed visual effect?
Having answered the first part, I do not believe you are having all of the material design if you wish to remove the surface elevation effect.
Anyways, here is how to remove surface elevation visual feedback:
Add animator file button_raise.xml to animator directory under res directory having the following code:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_enabled="true"
android:state_pressed="true">
<objectAnimator
android:duration="#android:integer/config_shortAnimTime"
android:propertyName="translationZ"
android:valueTo="0dp"
android:valueType="floatType" />
</item>
</selector>
Refer newly created animator in the button using stateListAnimator property:
<Button
...
android:stateListAnimator="#animator/button_raise"
... />
Hope this helps.
I am trying to create a capsule/pill shaped button in XML. I have defined a drawable and set it as the background of my button, but in the preview, and when I run the app, it's displaying as a blue rectangle, despite the background drawable being a white oval. Does anyone know why that might be happening?
Here's the button:
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/search_box"
android:layout_centerHorizontal="true"
android:layout_marginTop="24dp"
android:background="#drawable/button_capsule"
android:text="#string/search"
android:textColor="#color/precipLightBlue"/>
And here's the background drawable:
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="1000dp" />
<solid android:color="#android:color/white" />
</shape>
To have a capsule/pill shaped button you can use the MaterialButton in the official Material Component library using the app:cornerRadius attribute.
<com.google.android.material.button.MaterialButton
android:layout_width="100dp"
app:cornerRadius="32dp"
..../>
With the version 1.1.0 you can also customize the shape of your component using the app:shapeAppearanceOverlay attribute
<com.google.android.material.button.MaterialButton
....
app:shapeAppearanceOverlay="#style/ShapeAppearanceOverlay.ButtonRounded"
.../>
In the style define:
<style name="ShapeAppearanceOverlay.ButtonRounded" parent="">
<item name="cornerFamily">rounded</item>
<item name="cornerSize">32dp</item>
</style>
You can also try to use the ExtendedFloatingActionButton:
<com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
android:id="#+id/exfab"
android:layout_width="wrap_content"
.... />
You put a shape that you didn't defined. To define an oval you should put the shape="oval" option in the tag. Although i think you want a rectangle with rounded corners as i see in your code.
Also 1000dp radius is a lot, maybe that's making an issue.
Define size too. Because that shape doesn't have any size and may not appear as you are using wrap_content in the button definition
Try this:
<corners android:radius="30dp" />
<solid android:color="#android:color/white" />
<size
android:width="200dp"
android:height="50dp"/>
If you want an oval remove the corners tag and add android:shape="oval" as property of shape tag
Here is the code regarding button drawable background.
Xml code
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center|top"
android:background="#color/colorLightPurple">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="24dp"
android:background="#drawable/button_bg"
android:text="Search"
android:textColor="#color/colorBlue"/>
</LinearLayout>
For button background , please add same drawable file
seems like you're doing everything right. Just a small addition, try adding android:shape="rectangle" in the shape tag.
This is what button_capsule.xml should look like.
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners android:radius="1000dp" />
<solid android:color="#android:color/white" />
</shape>
Hope this works. All the best.
In Material design version 1.2.0 they have fixed this issue and added a property for setting background for Material Button
here is the dependency for the latest version
com.google.android.material:material:1.2.0
and also if u want to remove the space between the drawable top and bottom so that the drawable get the whole width and height use these 2 properties
android:insetTop="0dp"
android:insetBottom="0dp"
if want to explore more about the properties u can refer to the release of library and can check all the properties.
https://github.com/material-components/material-components-android/releases/tag/1.2.0
use this.
<androidx.appcompat.widget.AppCompatButton
.....
/>
I'm currently implementing an app which has a RecyclerView in which there are several custom views. From each one of these views the user can open a context menu (which requires a long click) but it's quite hard to figure out as generally, they will just perform a simple click and then think there is nothing more to it. But if I manage to give some UI feedback it could be much clearer. The idea is a simple ripple animation that highlights the background an which wouldn't complete from a simple click but which would go all the way for a long click action.
As I have been stuck on this for two days I have done my research and actually found some SO questions asking the same thing, for example this one from Cheok Yan Cheng is very well written and he even posted a video showing the desired effect (my question is pretty much the exact same) but there are no good answers as the first one says that we should use ?attr/selectableItemBackground but the given effect is different from the one I'm aiming for and I tried the second one, it doesn't do anything for a simple click as you start the animation in onLongClick.
EDIT :
Note that the expected behavior cannot be achieved from
?attr/selectableItemBackground nor by creating a ripple xml file and then set it as the background as these will give a normal onClick animation and a different longClick animation from the desired one again, look at this video to see what the desired effect is.
Try to follow these steps, it might help:
Step1:
Create ripple.xml in drawable: (This is for Android >= v21)
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="?android:colorControlHighlight">
<item android:id="#android:id/mask">
<color android:color="#android:color/transparent" />
</item>
</ripple>
In this line <color android:color="#android:color/transparent" /> will make your button transparent.
Step2:
in your item.xml where I used ConstraintLayout:
<Button
android:id="#+id/btnItemClickOnRecyclerView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_centerInParent="true"
android:layout_marginTop="16dp"
android:background="#drawable/ripple"
android:paddingBottom="4dp"
android:text="#string/view_details"
android:textColor="#color/White"
android:textSize="14sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent" />
And That's it.
Since your button will be fully covering your Item and it will hover on top of other view, it will act like an item.
To implement longClick listener on the button, make sure you register it in holder and then holder.button.setOnLongClick......
Try it, If any doubts please comment.
Make a xml file named ripple.xml then set the ripple.xml as the foreground of your view. It will work like a charm!!!
<?xml version="1.0" encoding="utf-8"?>
<!-- An white rectangle ripple. -->
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:color="#3fce29"
tools:targetApi="lollipop">
<item
android:id="#android:id/mask"
android:gravity="center">
<shape android:shape="rectangle">
<solid android:color="#3fce29"/>
</shape>
</item>
</ripple>
Try this first make ripple effect xml
ripple.xml
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:color="#color/light_gray"
tools:targetApi="lollipop">
<item android:id="#android:id/mask">
<shape android:shape="rectangle">
<solid android:color="#color/light_gray"/>
</shape>
</item>
</ripple>
than your adapter decalr xml parent layout like LinearLayout or if use RelativLayout set background as below
<?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="wrap_content"
android:background="#drawable/ripple"
>......
I've seen this question asked some other times on the site, but no one couldn't get any answer.
Is there any way to customize the appearance of the divider in the dropdown showing when using an AutocompleteTextview in android?
It's pretty easy for a ListView, but using only an ArrayAdapter for the autocompletetextview, is there any way to customize the divider.
(Not the textview, I already know doing that)
Im not sure how you can do it for single AutoCompleteTextView but I know how to set it for the whole application. This should also help you :)
<style name="MyTheme" parent="AppTheme">
<item name="android:dropDownListViewStyle">#style/MyListViewStyle</item>
</style>
<style name="MyListViewStyle" parent="#android:style/Widget.ListView">
<item name="android:divider">#F00</item>
<item name="android:dividerHeight">1px</item>
</style>
I didnt find any divider properties so I did 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"
android:background="#color/black">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"
android:id="#+id/textView129"
android:textColor="#000000"
android:background="#color/white"
android:layout_marginBottom="1dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="5dp"
android:paddingBottom="5dp"/>
</LinearLayout>
So wat im doing is I have a background color for the Linear layout and another background color for the text View (textView's background color overlaps the linear layout's background color) now using the margin property and setting the bottom margin of textview to 1dp u'll get a clean line between elements....
I had faced same problem and try many ways but not achieve result, at last i got a quick and easy way to set divider and divider lenght with AutocompleteTextview. Basically we can set a border from bottom side with TextView of ArrayAdapter Layout. Like as
step1. Make a layout for arrayadapetr like as
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/testt"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/background_single_line"
android:textColor="#drawable/text_color"
android:textAppearance="?android:attr/textAppearanceMediumInverse"
style="?android:attr/dropDownItemStyle"
android:maxLines="1"
android:padding="3dp"
android:textSize="16sp" />
step2: in drawable folder create new layout its name background_single_line.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#android:color/black" />
</shape>
</item>
<item android:bottom="1dp">
<shape android:shape="rectangle">
<solid android:color="#android:color/white" />
</shape>
</item>
Finally looks as divider .
The answer from Mark is normally the best solution. However different versions of the AppCompat library have different behavior, regarding how android:dropDownListViewStyle affects other menus, like the system overflow/options menu. For example, in AppCompat version 23.0.1, it will not affect this menu in the ActionBar/Toolbar; whereas version 23.2.1 it will affect it, as explained here.
If you want a style that is isolated to only affect the AutoCompleteTextView, it may not be possible. But an alternative way is to create the list divider image manually, as part of the layout of the dropdown list row:
res/layout/autocomplete_list_row.xml
<LinearLayout
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"
android:orientation="vertical"
tools:layout_height="50dip">
<TextView
android:id="#+id/text"
style="?android:attr/dropDownItemStyle"
android:textSize="18sp"
android:layout_width="fill_parent"
tools:text="An auto-complete list item"
android:minHeight="48dip"
android:layout_height="wrap_content"
android:ellipsize="marquee"/>
<View
android:layout_width="match_parent"
android:layout_height="1dip"
android:background="#drawable/divider"/>
</LinearLayout>
res/drawable/divider.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<size android:height="1dp" />
<solid android:color="#458c8c8c" />
</shape>
Then use this layout in your adapter for the AutoCompleteTextView:
ArrayAdapter<CharSequence> autoCompleteListAdapter =
new ArrayAdapter<>(context,
R.layout.autocomplete_list_row,
R.id.text, arrayList);
Similar approach using ConstraintLayout here.
I'm using Xamarin Android in Visual Studio and trying to do a simple task of displaying two rectangles, one above the other. When I use a measure size of "px" everything works as expected, but when I use "dp", the second rectangle does not get rendered. Here's my xml file with the rectangles:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:top="0dp" >
<shape android:shape="rectangle">
<solid android:color="#6EF562" />
</shape>
</item>
<item android:top="57dp">
<shape android:shape="rectangle">
<solid android:color="#000000" />
</shape>
</item>
Note the "dp" above. That code does not work. But if changed to "px", it works as expected.
Here's the source of my Main.axml file:
<?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="fill_parent"
android:background="#E6EDF0"
android:paddingTop="50dp">
<Button
android:id="#+id/MyButton"
android:layout_width="178.1dp"
android:layout_height="wrap_content"
android:text="#string/Hello"
android:layout_gravity="center"
android:padding="5dp"
android:layout_margin="5dp"
android:textColor="#000000"
android:background="#drawable/splitColors" />
Obviously, I want to use "dp" rather than pixels "px" for scaling reasons taking into different device form factors, but I can't get this to work.
The height of the button, is set at wrap_content. And in your drawable you specify you want to draw the black bottom part at 57dp. So if you're button smaller than 57dp it will never show. That's why it does the job at pixels, because 57px isn't that high. So if you want to use DP make sure your button is at least as high as the value you give <item android:top="57dp">