I'm noticing some issues with padding on the Nexus 7 tablet running Android 4.1. Specifically, I have a background drawable with padding that creates a outer stroke:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<stroke
android:width="1dp"
android:color="#59000000" />
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" />
</shape>
This is supplemented with a 1dp white inner stroke. So it should be a square 2 dp border around the entire image:
I have tested it on the actual nexus device and on several other devices and the 7 inch jelly bean emulator:
First, here is the working version from the 4.1 7 inch emulator:
The border around the outside is even and goes around the entire image. This is how it works on all the other devices i have as well.
Nexus 7:
The gray is the background color, but you can see the right and bottom padding is not being respected. The border is being obscured by the the image now.
If it matters, these are children of a GridView. Wonder if anyone has seen these issues or has ideas on how to resolve them.
This appears to be a bug when generating the stroke in the XML drawable. After multiple attempts, I've narrowed it down to that; it seems to be making the stroke size incorrectly on the lower and right sides of the shape, even if specified in pixels. If I simply change the stroke width to 2dip instead of 1dip (all other things staying as they are), this is the result:
This is the border.xml I used for the background of the after image:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<stroke
android:width="2dp"
android:color="#59000000"/>
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp"/>
</shape>
Which, again, is just yours with the stroke width enlarged. The good thing is, this won't change the expected result at all since the padding remains the same. In fact, you can change the stroke tag to solid and still have the same result (however, if your images contain transparency you'd see the solid background in the transparent areas).
Give this a try; let me know how it works for you!
Related
I am applying my own background on edittext to achieve same solid color of underline without changing it's thickness on focus.
Next to my xml file I can see in brackets it's specified as xhdpi (see image attached)
When i run it on different density device the underline doesn't look perfect.
Is it because the xml file is specified as xhdpi? What does it mean? How to make it scale perfectly on all densities?
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:bottom="1dp"
android:left="-2dp"
android:right="-2dp"
android:top="-2dp">
<shape android:shape="rectangle" >
<stroke
android:width="1px"
android:color="#color/purple" />
<solid android:color="#00FFFFFF" />
<padding
android:bottom="5dp"
android:top="5dp" />
</shape>
</item>
</layer-list>
Please read Android Developers: Support different pixel densities
1. Use one resource for all densities
Select the file and press F6 (move file)
Then delete -xhdpi from the To directory field and click on OK
2. Create resource for each screen density
You will need to create other XML files with that same name and place them in the appropriate folder while modifying android:width and maybe padding to suit your taste
Android studio 2.0 Preview 3b
Hello,
I have created the following layout that I want to use for a background for my app. I am using the layer-list and I want to display a bowl of peas in 2 locations. Everything looks ok in the preview, but when I run on genymotion or some cheap Chinese devices the image stretches across the screen. However, on the Android AVD, everything looks fine and on my Nexus 5 (real device) everything works ok.
This is what I want and this is how it's displayed in the AVD and Nexus 5. As you can see there is no problem.
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient
android:centerX="0.5"
android:centerY="0.3"
android:endColor="#08e25b"
android:gradientRadius="300dp"
android:startColor="#b7e9c9"
android:type="radial" />
</shape>
</item>
<item
android:width="48dp"
android:height="48dp"
android:left="350dp"
android:top="400dp">
<bitmap android:src="#drawable/peas" />
</item>
<item
android:width="68dp"
android:height="68dp"
android:drawable="#drawable/peas"
android:left="-20dp"
android:top="480dp" />
</layer-list>
I have placed peas.png file in drawable-nodpi and just add the width and height in the layer-list
And when I run on the genymotion and some cheap smart devices I get the following:
Just quick summary.
Nexus 5 real device and AVD devices works ok
Genymotion and cheap smart devices doesn't display correctly
I am just confused in what I should believe. I have tried to use the bitmap as well to see if that would make any difference.
Many thanks for any suggestions.
Update your layer-list as follows
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient
android:centerX="0.5"
android:centerY="0.1"
android:endColor="#08e25b"
android:gradientRadius="300dp"
android:startColor="#b7e9c9"
android:type="radial" />
</shape>
</item>
<item
android:width="48dp"
android:height="48dp"
android:bottom="68dp"
android:right="-20dp">
<bitmap
android:gravity="bottom|right"
android:src="#drawable/peas" />
</item>
<item
android:width="68dp"
android:height="68dp"
android:bottom="-20dp"
android:left="-20dp">
<bitmap
android:gravity="bottom|left"
android:src="#drawable/peas" />
</item>
</layer-list>
Place your images in all density folders (xxhdpi, xhdpi, hdpi).
The system picks image resources based on screen resolution.
This is my Gradient drawable xml file and expected output for nexus 7 but the gradient is not correct ( Linings between shades )!
It look like this
Correct Output is in phone.
Is there any pixel format definition?
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<gradient
android:angle="45"
android:endColor="#00a484"
android:startColor="#00407e"
android:type="linear" />
</shape>
I'm just trying to display a stroked rectangle (stroke width 1dp) with rounded corners (radius 3dp). Everything looks fine on most devices, but the corners are not displayed correctly on Samsung Galaxy Tab 7.0 plus N.
Here's the code:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<solid android:color="#00000000"/>
<stroke android:width="1dp" android:color="#color/borderGreen"/>
<corners android:radius="3dp" />
</shape>
And here are the results. It's looking good on Kindle Fire HD (for example), but not so good on the Galaxy Tab:
The Kindle has a higher screen resolution, but it also looks ok on devices with resolutions lower than the Galaxy Tab's. Do you have any ideas on how to circumvent this problem or will I just have to live with it?
This issue happened to me when I was adding two rectangle shapes - one containing the other one (to achieve a double-border background in my case).
I was however only applying a corner radius to the outer rectangles and not the inner one. This was causing the effect of cut out or missing rounded corners.
I will start with very simple basic question, How do i keep an button image for tablet and phone,
I have an button which i want to use width as full_parent, which make my button good, Now what happen if I have different - 2 layout.
I am aware of multiple layout concept, but the how can i ensure that my button image will not stretch to fit into my screen
So I thought to use dpi, but dpi will not solve problem
if you view this image as Phone app, and button "Test this button" and about layout "test" is similiar in width,
Now what is best approach to achieve the same behavior in tablet also.
will it work for all size of devices? or do we need to go with different approach?
Most of the problem i am facing is because of static images, I tried to use different-2 dpi for this, but I think dpi is not device size dependent, because same width device can have different-2 dpi
I need to understand approach for implementing on one app for each device.
Add into the drawable folder name with xyz.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle">
<gradient android:startColor="#000000" android:endColor="#333333" android:angle="90"/>
<corners android:radius="5dp"/>
</shape>
</item>
</layer-list>
And in your layout where you crate the button add into
android:background="#drawable/xyz"
You'll get what you want