I have an app with a splash screen and the splash screen looks good on small devices but looks screwed up in a big tablet(emulator). so I changed the background to wrap_content. but it looks aligned to the side of the screen, Can some one tell me a way to center background images? here is my splash.xml-
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="#drawable/splash">
</LinearLayout>
I am using a background image for my activity. First create a theme in your styles.xml:
<style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
<item name="android:windowBackground">#drawable/background_splash</item>
</style>
Then create a new drawable with the name background_splash.xml
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/colorWhite"/>
<item>
<bitmap
android:gravity="center"
android:src="#drawable/logo_splash"/>
</item>
</layer-list>
Then set your activity to use this theme in your AndroidManifest.xml:
<activity android:name="SplashActivity" android:theme="#style/SplashTheme" >
This worked for me.
You don't actually need neither LinearLayout nor RelativeLayout here, use a more lightweight FrameLayout instead.
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:src="#drawable/splash"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</FrameLayout>
Slight change in code as it requires adding a second element for best fit
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#2A7800"<---- optional background color to fit the image. to make it blend in
android:orientation="vertical">
<ImageView
android:id="#+id/imageView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"<--- centers
android:adjustViewBounds="true"
android:scaleType="fitXY"<--- makes sure the image fits into the layout my matching the screen size.
android:src="#drawable/splash" />
</LinearLayout>
Adding an ImageView is best practice as it is better performance wise than using android:background and setting an image. I discovered this with a ScrollView and the master parent had android:background set to an image. It slowed down the ScrollView extremly.
Additionally, there is no need for a specific layout with this method. You can use RelativeLayout, FrameLayout, LinearLayout - anything that works. The exception might be ListView, GridView
You can use relative layout, try the below code..
<?xml version="1.0" encoding="utf-8"?>
<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"
android:background="#android:color/white">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerInParent="true"
android:src="#mipmap/ic_launcher" />
</RelativeLayout>
Please try out the following
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/splash">
</LinearLayout>
Related
The image I used for my splash screen with (gravity:center) doesn't fit my mobile screen, even if I changed gravity to fill.
<item>
<bitmap
android:gravity="fill"
android:src="#drawable/drawable"/>
</item>
Normally I used common single image for all kind of devices, which size is 720px*1280px.
Then in my splash_activity.xml i usually used it like following way:
<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"
android:layout_gravity="center"
android:background="#drawable/bg_splash"
android:gravity="center"
android:orientation="vertical" />
use the bitmap in the XML file as a background
android:background="#drawable/bg_splash"
Use FrameLayout as your Root
Put an ImageView in it and set ScaleType to fitXY and set adjustViewBounds to true
So change your layout like below:
<FramLayout 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"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:src="#drawable/bg_splash"
/>
</FrameLayout>
I have a linear layout like this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center_horizontal"
android:background="#drawable/bgapp" >
What I need now is the possibility to set the background image ScaleType value in order to fill the screen everytime, this because I'm going to download the image and then I'm going to set it as background but without ScaleType the images will not keep it's aspect ratio based on the screen densities.
What I found is this solution:
<?xml version="1.0" encoding="utf-8"?>
<bitmap
xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/bgapp"
android:scaleType="centerCrop"
android:gravity="bottom|left" />
But It doesn't work as expected.. Is there a way to set a LinearLayout scaleType property or do I need to change my layout?
View's background is stretched depending on the size of the View.
Image scaling is supported by ImageView, and to use it together with the LinearLayout you need an additional container, that will overlay the 2 children (e.g. a FrameLayout):
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/bgapp"
android:scaleType="centerCrop"/>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center_horizontal">
...
</LinearLayout>
</FrameLayout>
I am simply trying to center an ImageView in a FullScreen app. I've read several posts on this site on people asking what seems like same question, and I've tried everything I've read, but I can't seem to get it to center.
Here is my code for the layout. I realize there might be some overkill here to get the centering, as a result of trying various other posts. This code puts the image on the top left part of the screen.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:background="#000000"
android:orientation="vertical" >
<ImageView
android:id="#+id/image"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="false"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:adjustViewBounds="true"
android:background="#android:color/black"
android:contentDescription="#string/descImage"
android:cropToPadding="false"
android:gravity="center"
android:src="#drawable/placeholder" />
Here is my full screen code in AndroidManifest.xml.
android:screenOrientation="landscape"
android:theme="#style/Theme.FullScreen">
Theme.FullScreen is defined as
<style name="Theme.FullScreen" parent="#android:style/Theme.Holo">
<item name="android:windowNoTitle">false</item>
<item name="android:windowFullscreen">true</item>
</style>
Thanks.
Try this. It works find on my galaxy nexus w/ 4.2 (I just changed width & height of image view as wrap_content and remove unnecessary & meaningless attributes.)
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#000000">
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:adjustViewBounds="true"
android:background="#android:color/black"
android:src="#drawable/ic_launcher" />
</RelativeLayout>
and for theme...
<style name="Theme.FullScreen" parent="android:Theme.Holo.NoActionBar.Fullscreen"/>
That seems very excessive for what you're trying to do. Try this?
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:contentDescription="#string/descImage"
android:src="#drawable/placeholder" />
</FrameLayout>
If you use fill_parent for the size, the entire view will not be centered in the parent, because it is the size of the parent.
If you change the size to wrap_content, the bounding box of the view will change, and that will be centered inside of the parent.
You could also use the android:scaleType property for the imageView specifying how the image resource itself should be layed out inside of the view.
The default scaleType will cause the resource image to appear in the top left corner of the ImageView, if the bouding box is larger then the actual image itself.
You can also use the android:adjustViewBounds property to have the OS automatically resize the bounding box for you, based on the image resource.
Use scaleType="fitCenter" on the ImageView.
fill_parent has been replaced with match_parent in later Android versions and I've using an SVG drawable resource, so I had to modify the answers above slightly.
This is what worked for me:
<?xml version="1.0" encoding="utf-8"?>
<android.widget.RelativeLayout 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"
tools:context="com.example.MyActivity">
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitCenter"
app:srcCompat="#drawable/my_drawable" />
</android.widget.RelativeLayout>
NOTE: I have ended up reporting this as a bug to the android project here: http://code.google.com/p/android/issues/detail?id=39159 Please also have a look at the accepted bounty answer, the solution is, unfortunately, to use an absolute (ie specifiying 'dp's rather than 'wrap_content' etc) layout to fix the issue.
I'm getting some VERY strange behaviour when placing a background on an image. I have simplified this down quite heavily to demonstrate the issue to you. What im doing is placing an image in a relativelayout, and also using a background. It seems that giving the relativelayout a padding is causing the background of the image to be missdrawn. Wrap_content seems to be messing up.
Firstly, here is the code that demonstrates the problem. Note that the same behaviour is seen without using a linearlayout and just giving the imageview a background, but this really demonstrates the problem better.
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="60dp"
android:padding="5dp" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/black_bg" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="#drawable/red_rectangle" />
</LinearLayout>
</RelativeLayout>
</FrameLayout>
Here is the black_bg xml file:
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#FF000000"/>
</shape>
Here is red_rectangle:
NOTE that this is a reference image, to demonstrate the problem. my actual image has detail, and so cannot be a .9.png
And here is a screenshot of the problem:
You can see that the image width is less than the linearlayout, despite the linearlayout having a width set to "wrap_content". If I set the relativelayout padding to 0dp, this problem dissapears.
This is hopefully a fairly well contained set of resource I'm providing here, so people can try it out themselves if they wish.
For reference, I am using this to provide a border around the image, so I could set the linearlayout (or the image itself) to have a padding, the problem still persists in that case.
EDIT: It appears I probably need a little more context around this, as answers are focussing round how to provide this border. Here is a screenshot of a more contextual layout. I didnt want to include this in the first place as it adds more confusion to the problem:
The FIRST 5dp padding you see is for the content of this entire item (the relativelayout). Then, as i said originally, the idea is that "I could set the linearlayout (or the image itself) to have a padding" in addition to the first padding you see in the relativelayout. Currently, this layout should have NO border shown.
the problem seems to be with the different stretching properties of image(in image view) and the one set as a background(in linear layout). The image set as a backgroung doesnt necessarily maintains the aspect ratio while the image in the image tends to maintain it.
When you give the height of the layout to 60 dp, the image shrinks maintaining the aspect ratio leaving the black strips on the sides.
This works for me:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="60dp"
android:padding="5dp" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/black_bg" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="60dp"
android:src="#drawable/asd"
android:scaleType="fitXY"
/>
</LinearLayout>
</RelativeLayout>
</FrameLayout>
I believe this is a good candidate of a bug!
Anyway, I understand what you intend to achieve with this layout. The problem is setting the height of your RelativeLayout. I will not ask you to wrap content! Simply, since the height is set to 60dp and padding to 5dp, take a further step and set the height of the LinearLayout to 50dp which is 60-2*5 :)
Finally, to get the border, add a padding of, say, 5dp to your LinearLayout and set the Height of the ImageView to 50dp - 2*5 = 40dp.
This will work perfectly
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="60dp"
android:padding="5dp" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="50dp"
android:padding="5dp"
android:background="#drawable/black_bg" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="40dp"
android:adjustViewBounds="true"
android:src="#drawable/red_rectangle" />
</LinearLayout>
</RelativeLayout>
</FrameLayout>
I dont know why its showing the extra black patch there. Have you tried running the app? The UI editor has some defects, especially when it comes to ImageView..
Now for the border around image, set the background and padding to the ImageView itself. Do not need the LinearLayout. Add the scale type attribute with "centerInside" value.
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
android:layout_centerInParent="true"
android:adjustViewBounds="true"
android:src="#drawable/red_rectangle"
android:background="#000"
android:scaleType="centerInside"/>
"For reference, I am using this to provide a border around the image"
Add a drawable "border.xml"
<shape xmlns:android:"http://schemas.android.com/apk/res/android" android:shape:"rectangle">
<stroke android:width="5dp" android:color="#FF000000" />
<padding android:left="5dp" android:top="5dp" android:right="5dp" android:bottom="5dp" />
</shape>
set your ImageView background to this drawable.
And lets simplify your layout and center the ImageView:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:adjustViewBounds="true"
android:src="#drawable/red_rectangle"
android:background="#drawable/border" />
</RelativeLayout>
Try this ...........
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="60dp"
android:padding="5dp" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/black_bg"
**android:padding="5dp"**
>
<ImageView
**android:layout_width="fill_parent"
android:layout_height="fill_parent"**
android:adjustViewBounds="true"
android:src="#drawable/red_rectangle" />
</LinearLayout>
</RelativeLayout>
</FrameLayout>
make your image view like this ..
<ImageView
android:id="#+id/imageViewMyicon"
android:layout_width="30dp"
android:background="#drawable/myiconbackground"
android:layout_height="30dp"
android:src="#drawable/myicon"
android:contentDescription="#string/my_icon"
/>
Inside your drawable myiconbackground.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
android:padding="10dp">
<solid android:color="#0D95BD"/>
<corners android:radius="5dp"/>
<padding android:left="2dp" android:right="2dp" android:top="2dp" android:bottom="2dp"/>
</shape>
i checked this one is working for me , should do for you as well
I want to repeat the image with ImageView with in RelativeLayout. Can it be possible to use the Bitmap xml and use tilemode "repeat" with RelativeLayout, because what I have seen things on Internet they all dealing with LinearLayout.
Any help or tip will be warmly welcomed.
Create an XML file named background in Drawable folder
background.xml
<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/imagename"
android:tileMode="repeat" />
In your Relative Layout add the above XML as background
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"
android:background="#drawable/background" />
Yes of Course, You can use it with relative layout. Use it as background of your RelativeLayout. I also used it in my project.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:background="#drawable/top_header_bg_repeat"
android:gravity="center">
top_header_bg_repeat.xml (in drawable folder)
----------------------------------------------
<bitmap
xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/top_header"
android:tileMode="repeat"
android:dither="true"/>
Set Bitmap in ImageView
----------------------
<ImageView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="#drawable/top_header_bg_repeat"
android:scaleType="fitXY"/>
<ImageView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/top_header_bg_repeat"/>
Yes, its possible. Define your repeating image as Drawable (bitmap) with android:tileMode="repeat" in XML and use it as background of your RelativeLayout.
In all requests exists one small problem if you image will be great and smaller what size your layout, image will not resize, only repeat by X.
For repeat by Y you can do it only programmly.
I solve my problem like this (set gravity fill)
drawable bg for image
<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/table_cells_bg_img"
android:tileMode="repeat" android:gravity="fill" />
and on layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="#dimen/table_cell_height">
<ImageView
android:id="#+id/imageView1"
android:layout_width="fill_parent"
android:layout_height="#dimen/table_cell_height"
android:scaleType="fitXY"
android:src="#drawable/table_cells_bg"/>
<TextView
android:id="#+id/txtActivityTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/avatarImage"
android:text="TextView"
android:textColor="#color/white"
android:textSize="#dimen/font_size_middle" />
</RelativeLayout>
And table_cells_bg_img it's image with width=1px and height = 1px
and etc of layout, so now your image it's like background and it's will resized for any size of parent layout
Try, maybe help. To be cleared in my case i need tiled background image to full size of tablecell repeated by X coordinate (like i can do it on iOS). So i solve it like i describe.