I am using com.android.volley.toolbox.NetworkImageView.
Image is coming from url.
I want to display image so that its width to occupy full width of screen not height because below image there is a caption which is a Textview.
Here is the activity's xml
<?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="fill_parent"
android:layout_height="fill_parent"
android:background="#color/black"
tools:context=".MainActivity" >
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
Here is the items xml.
<?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:gravity="center" >
<com.android.volley.toolbox.NetworkImageView
android:id="#+id/photo_image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="1dp"
android:src="#drawable/button_register" />
<TextView
android:id="#+id/caption"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/photo_image"
android:layout_marginLeft="15dp"
android:text="Check"
android:textColor="#color/white" />
</RelativeLayout>
From the backend the image size is 300 X 200 pixels.
How to set imageview so that it can occupy full width of the screen.
Can anyone help?
NetworkImageView extends ImageView so you should be able to use everything that works with ImageView.
So, if you want your image to occupy full width and adjust its height so it maintains its aspect ratio (at least that's what I understood you wanted to do) use the adjustViewBounds property
Your xml will look like this:
<com.android.volley.toolbox.NetworkImageView
android:id="#+id/photo_image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="1dp"
android:src="#drawable/button_register"
<!-- add adjustViewBounds -->
android:adjustViewBounds="true" />
Related
I am making a video player and previewing the video's thumbnails in gridview. Is there any way to make the thumbnails fill the gridview completely, by perhaps zooming in the image till both sides are >= grid size. Something like CSS background-size: cover, if that makes things clear
Activity Layout:
<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"
tools:context=".MainActivity">
<GridView
android:id="#+id/videos_grid"
android:numColumns="2"
android:layout_width="match_parent"
android:layout_height="match_parent">
</GridView>
</RelativeLayout>
Grid Item Layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="384dp"
android:orientation="horizontal"
android:weightSum="1">
<ImageView
android:id="#+id/video_item_thumbnail"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="#string/video_thumbnail"
android:background="#drawable/video_item_background"/>
<TextView
android:id="#+id/video_item_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:textSize="20sp"
android:textColor="#android:color/white"
android:padding="5dp" />
</RelativeLayout>
android:scaleType
<ImageView
...
android:scaleType="centerCrop" />
This makes the smaller edge of drawable == ImageView's size while keeping the aspect ratio
On landscape mode my background image stretches, I would like the image to enlarge rather than stretch to fit the size. From what I've seen I have to add it to it's own layout (E.g. LinearLayout) or 'ImageView` and the have a layout for the content on the view, am I correct in saying this?
My current xml layout looks like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/instructions"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/photo_background"
android:tag="layout" >
<ScrollView
android:id="#+id/scroll_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fadingEdge="none" >
<include layout="#layout/instructions_internal" />
</ScrollView>
Which includes the following layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/scroll_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:id="#+id/instructionsLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/transparent_black" >
<RelativeLayout
android:id="#+id/more_info"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<WebView
android:id="#+id/top_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp" />
<Button
android:id="#+id/test"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_below="#+id/top_content"
android:layout_marginBottom="10dp"
android:layout_centerHorizontal="true"
android:onClick="onClickHandler" />
<Button
android:id="#+id/instructionsbutton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/test"
android:background="#color/dark_gray"
android:drawableLeft="#drawable/arrow_down_float"
android:gravity="left|center"
android:onClick="onMoreInstructions"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="#string/more_instructions_start"
android:textColor="#color/solid_white" />
</RelativeLayout>
<WebView
android:id="#+id/bottom_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_below="#+id/more_info"
android:layout_marginTop="10dp" />
</RelativeLayout>
Any guidance on this would be gladly appreciated. Thanks
Yes you're correct. View's background scaling type is equivalent to ImageView's ScaleType.FIT_XY It will mess up the aspect ratio unless you're using wrap_content and the contents do not make it stretch past background bounds.
So in this situation I usually use an ImageView I place behind the view I need to give a properly-scaled background to. (Most likely yo're looking for CENTER_CROP scale type)
UPD here's some code
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/instructions"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:tag="layout" >
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/photo_background"
android:scaleType="centerCrop" />
<ScrollView
android:id="#+id/scroll_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fadingEdge="none" >
<include layout="#layout/instructions_internal" />
</ScrollView>
</FrameLayout>
use an image that matches or in accordance with the android device resolution and screen size.
the image cannot itself enlarge itself, even if you use a linear layout dedicatedly for the image, the image is bound to stretch.
keep images of all possible resolutions in separate folders that you plan to run you application on.
what i have is an activity and i add an images to it, and i make it as background for the activity with the following xml :
<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"
tools:context=".SplashScreen">
<ImageView
android:id="#+id/imageView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/splash5" />
</LinearLayout>
and the image size is : 550 px for width and 800 px for height
and as you can see from the image you can see a white space in top and in bottom .. why this is happening even it's fill parent for width and height?
use like this:
<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"
tools:context=".SplashScreen">
<ImageView
android:id="#+id/imageView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/splash5"
android:scaleType="fitXY"
/>
</LinearLayout>
My goal is simple : have a 16/9 ratio image in an imageView. I use a png image which dimensions are 16x9. 2 possibilities for my app :
portrait : width fixed, has to scale height
landscape : height fixed, has to scale width
The first one works fine with this layout :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/welcomeRootLayout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<FrameLayout
android:id="#+id/welcomePilotingFrame"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:contentDescription="#null"
android:scaleType="fitXY"
android:src="#drawable/black_16_9e" />
</FrameLayout>
<!-- Other stuff that aren't relevant -->
</RelativeLayout>
This gives me what i want : my red cornered image is resized
Now the fun part begins : landscape: Here's my layout (symetric off portrait) :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/welcomeLinearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2" >
<FrameLayout
android:id="#+id/welcomePilotingFrame"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#ff00ff00" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:contentDescription="#null"
android:scaleType="fitXY"
android:src="#drawable/black_16_9e_border" />
</FrameLayout>
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_toRightOf="#+id/welcomePilotingFrame" />
</RelativeLayout>
<!-- Other stuff that aren't relevant -->
</LinearLayout>
And now, the imageView understands it has to be all its parent high, but does't resize its width and so doesn't keep my 16/9 ratio !
Am I missing something ?
Change the layout_width of second framelayout to match_parent. Also scale-type = fitxy changes aspect ratio of the image. Change it to FIT_START
my code is like below,when the FrameLayout layout_height from
android:layout_height="wrap_content"
to
android:layout_height="120dp"
the layout becomes
i hope the image's height will become 120dp, and keep the scale.
And the width of the layout will be followed by changes , as described wrap_content ,
but it only seems to adapt to the size of the original image .
what can i do?
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/item_thumbnail_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#color/white" >
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/network_3" />
</FrameLayout>
How about specifying both the layout_width and layout_height to 120dp each? Like below
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/item_thumbnail_container"
android:layout_width="120dp"
android:layout_height="120dp"
android:layout_gravity="center"
android:background="#color/black" >
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/ic_launcher" />
</FrameLayout>