I have a very simple shape that I want to set the width of:
<shape android:shape="rectangle">
<solid android:color="#color/orange"/>
<size android:width="2dp"/>
</shape>
However, when I assign this to the background of a EditText it just shows an orange background instead of a rectangle of width 2dp. Why isn't setting the size working? I want to create a transparent drawable with a orange rectangle on the left side. I also have this wrapped in a selector:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true">
<shape android:shape="rectangle">
<solid android:color="#color/orange"/>
<size android:width="2dp" android:height="6dp"/>
</shape>
</item>
<item>
<shape android:shape="rectangle">
<solid android:color="#android:color/transparent"/>
</shape>
</item>
</selector>
I've tried adding height just to see if it would change the size. It doesn't. It's like its completely ignoring the size. WTF?
For me, setting the gravity of the item to "center" solved the issue.
For example:
<item android:id="#android:id/progress" android:gravity="center">
<clip>
<shape>
<size android:height="2dp"/>
<solid android:color="#color/my_color"/>
</shape>
</clip>
</item>
It can work with a foreground. It seems like you can't set a background's gravity. But you can on a foreground. I checked API 21, 23 and 24 (well, with the Studio design preview) and the following places a solid circle dot on the ImageView.
<shape android:shape="oval" xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#color/colorPrimary" />
<size android:height="8dp" android:width="8dp" />
</shape>
With the layout snippet
<ImageView
android:foreground="#drawable/list_new_dot"
android:foregroundGravity="right|center_vertical"
tools:src="#drawable/model_1_sm"
/>
UPDATE: While it appears to work in the layout design tool, it doesn't look the same in the emulator. UPDATE 2: Since this answer has a few votes, you might want to check what I actually used in order to show a new indicator dot:
https://gist.github.com/CapnSpellcheck/4d4638aefd085c703b9d990a21ddc1eb
Just to specify the user983447's answer - the size attribute does really mean a proportion. You should set the size for all shapes in your layer-list and it'll be used a as a proportion when scaling - like the layout_weight attribute of LinearLayout. So it's better to name it not a size but a weight
Below is a work-around how to implement top and bottom white lines without using the size attribute:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<solid android:color="#fff" />
</shape>
</item>
<item android:top="1dp" android:bottom="1dp">
<shape>
<solid android:color="#888" />
</shape>
</item>
</layer-list>
I found the layer-list to be very devious for a first time Androider because of the following. At first glance most would think item top,bottom,right,left attributes are FROM the top,bottom,right,left. Where a value of the following:
<item android:top="10dp">
Would net you a starting point 10dp from the top of the respective container. This is not the case. Think of it as OFF OF the top,bottom,right,left. <item android:top="10dp"> will still net you a starting point 10dp OFF OF the top, but what happens when you want to set the bottom?
<item android:bottom="20dp">
This will not get you a bottom at 20dp from the TOP, rather a bottom of 20dp OFF OF the BOTTOM of the container.
So, for example with a 100dp container, if you wanted a rectangle with a top edge starting at 20dp and a bottom edge at 40dp:
<item android:top="20" android:bottom="60dp">
The size of a shape will be ignored when you use it as a background of a View. It will work when you show it via an ImageView:
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#FF7700" />
<size android:width="20dp" android:height="20dp"/>
</shape>
In your layout XML:
<!-- will have the size of 20dp x 20dp -->
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/my_shape"
/>
I had similar problem.
Documentation ( http://developer.android.com/guide/topics/resources/drawable-resource.html#Shape ) says:
<size>
The size of the shape.
(...)
Note: The shape scales to the size of the container View proportionate to the dimensions defined here, by default. When you use the shape in an ImageView, you can restrict scaling by setting the android:scaleType to "center".
If I understand correctly, it means that "size" tag is not for setting size but for setting proportions.
shape's size attribute will provide the value for drawable.getIntrinsicWidth & getIntrinsicHeight.
if the drawable's container(e.g. ImageView, TextView) has the layout param WRAP_CONTENT, then the container dimension will change if the drawable drawingState change.
but there are a bug in android framework in ImageView drawingState implementation
ImageView only update/resize its dimension by the drawable dimension on state_selected but don't on state_activated
used this.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<stroke
android:color="#color/lgray"
android:width="1dip" />
<corners
android:bottomLeftRadius="0dip"
android:bottomRightRadius="0.1dip"
android:topLeftRadius="0dip"
android:topRightRadius="0.1dip" />
<solid android:color="#color/White" />
</shape>
put this rectangle.xml to drawable.and set your view background.
Related
I know the solid color and also the corner section but
I want to know how can I fill color of the corner
Try using stroke in your layout file. stroke can give you the border colour and width.
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<stroke android:color="#color/yourcolour"
android:width="4dp"
/>
//Other adjustments
</shape>
Let me know if this is what you were looking for
Or if you want something like in your image try the below
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item >
<shape android:shape="rectangle">
<solid android:color="#android:color/holo_red_dark"/>
<stroke android:color="#android:color/black"
android:width="10dp"
/>
</shape>
</item>
<item >
<shape android:shape="rectangle">
<solid android:color="#android:color/holo_blue_bright"/>
<stroke android:color="#android:color/black"
android:width="10dp"
/>
<corners android:bottomLeftRadius="150dp"/>
</shape>
</item>
</layer-list>
It seems you talking about that red colour on above image.
In that case, there is no property which give you such result.
You need to make it logically., Like take 2 views with diff background,
Red background with black colour stroke.
Sky background overlaping on 1st red view.
And simply make top view background as rounded with black color stroke. It will provide you the desired design layout.
Make sure you give same stroke to both view so that itlook to be same.
Happy coding.
I want to have a bottom line in a view. The following drawable somehow adds a bottom border:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape
android:shape="rectangle">
<!-- Set the border color of your layout here -->
<solid android:color="#color/red" />
</shape>
</item>
<!-- This is for border bottom but
you can change this according to your need -->
<item android:bottom="2dp" >
<shape
android:shape="rectangle">
<!-- Set the background color of your layout here -->
<solid android:color="#color/green" />
</shape>
</item>
</layer-list>
The result of this is:
Problem:
1) I don't understand how this works at all. It seems this is some trick using margins to get a red bottom border but I don't really get it.
2) I need to be able to add a bottom border but I don't want to set any specific background color for the whole view. Is that possible?
This is telling the system from where to start this item layout.
Since here we have bottom 2dp so this layout start 2dp from bottom.
Change bottom to end,start or other options for more understanding.
For 2) I need to be able to add a bottom border but I don't want to set any specific background color for the whole view. Is that possible?
replace your drawable with below code:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:left="-2dp"
android:right="-2dp"
android:top="-2dp">
<shape android:shape="rectangle">
<solid android:color="#ffffff" />
<!--Uncomment this if you wnat to set any background color to
your rectangle
<solid android:color="#ffffff" />-->
<stroke
android:width="1dp"
android:color="#color/red" />
</shape>
</item>
I need to create a speech bubble background for an icons container like the white one in this image:
Required Appearance
I decided to use a drawable xml rather than a 9 patch image, so I can control of the rounded corner radii in my code. So, with the help of this answer to a related question, I have created the following xml:
bg_icons_container.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:left="0dp"
android:top="27dp"> <!-- How to make this 50% of height? -->
<rotate
android:fromDegrees="-45"
android:toDegrees="0"
android:pivotX="0%"
android:pivotY="0%"> <!-- How to make the triangle more acute? -->
<shape
android:shape="rectangle" >
<solid
android:color="#color/white"/>
</shape>
</rotate>
</item>
<item
android:left="10dp">
<shape
android:shape="rectangle">
<solid
android:color="#color/white"/>
<corners
android:radius="#dimen/border_radius_small"/>
</shape>
</item>
</layer-list>
This results in:
Actual Apperance (enlarged)
My problem is that the triangular part of the drawable is too wide. How can I make it more acute? (My minSdkVersion is 16, so I cannot use android_width on the first item to try and stretch it.)
Also, I am having to hard code android:top of the first item to 27dp. Is it possible to make this 50%, so it will correctly adjust when the height of the drawable changes?
I am not sure what to call this... pill shaped maybe. Googling for rounded corners turns up lots of posts of people wanting a rectangular button with rounded corners. This is a little different but more like 2 circles and a rectangle which I tried to draw it as.
I would like to make a button shaped something like the first image below but with text and an icon image in it by using an xml drawable background on an android :
I have tried this which looks ok but if the button length varies it does not scale and you end up with a rectangle and some other strange stuff.
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:left="40dp" android:top="0dp" android:bottom="0dp">
<shape android:shape="oval" >
<solid android:color="#666666"/>
<size android:width="40dp" android:height="40dp"></size>
</shape>
</item>
<item android:left="20dp" android:right="20dp">
<shape android:shape="rectangle" >
<solid android:color="#666666"/>
<size android:width="20dp" android:height="20dp"></size>
</shape>
</item>
<item android:right="40dp">
<shape android:shape="oval" >
<solid android:color="#666666"/>
<size android:width="40dp" android:height="40dp"></size>
</shape>
</item>
</layer-list>
I have tried to create my xml drawable like this also:
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<solid android:color="#666666" />
<corners android:radius="20dp"/>
<size android:height="20dp" android:width="60dp"></size>
</shape>
which looks like this:
I have looked at this persons example but when I do what he does my results are not completely rounded at the corners. They are more like the second image above.
You can try to save the following code to a drawable(e.g. pill_bg.xml):
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:dither="true"
android:shape="rectangle">
<corners android:radius="120dp" />
<solid android:color="#color/white" />
<stroke
android:width="1dp"
android:color="#efefef" />
<size
android:width="300dp"
android:height="120dp" />
</shape>
Take a look at size part and radius. Then apply the drawable to your view, for example:
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="250dp"
android:layout_height="60dp"
android:background="#drawable/pill_bg" />
As you can see, your view can have different sizes, the background will be scaled.
As of v1.1.0-beta01 of the Material Components Android library you can use MaterialButton and a shapeAppearance style to easily define a pill button that doesn't require you to know the height of the button beforehand or rely on guessing a radius value high enough to go halfway down the side of the button.
Simply define a style like this:
<style name="PillShapeAppearance">
<item name="cornerFamily">rounded</item>
<item name="cornerSize">50%</item>
</style>
and set it on your MaterialButton like this:
<com.google.android.material.button.MaterialButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
...
app:shapeAppearanceOverlay="#style/PillShapeAppearance"
/>
The key that every other answer I've looked at leaves out is to set cornerSize with a percent value so that the fraction value it supports is properly applied.
This resizes correctly for any view background.
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners android:radius="1000dp" />
<solid android:color="#android:color/holo_red_dark" />
</shape>
Well you can make that button in any design program, also make one similar make it look like it is pressed then you make a selector drawable and assign it to the button background. That´s the way i do pretty awesome buttons
What I wanted was while background with red part on the left. Something like this.
I tried many things (is there any WYSIWIG editor? I think I ran this hundreds of times.) Specifying width like in the following article did not work.
how to specify width and height of a drawable item
The following article only tells me that I cannot use percentage, now how to apply width.
Android Drawable: Specifying shape width in percent in the XML file?
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<solid
android:color="#FFFFFFFF"/>
</shape>
</item>
<item>
<shape android:shape="rectangle">
<solid android:color="#55FF0000" />
<size android:width="100px" />
</shape>
</item>
</layer-list>
Rather than specify the size of the red box, you would define a red layer and then set the left margin of the white layer equal to the amount of red to show.
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<solid android:color="#55FF0000" />
</shape>
</item>
<item android:left="100px">
<shape android:shape="rectangle">
<solid android:color="#FFFFFFFF"/>
</shape>
</item>
</layer-list>
If you know the desired negative space, you could even swap the two and set the right margin of the red (now top) layer to the amount of white that should be visible.