I have an XML file in my Android application. The first two linear layouts look like the image below.
Layout 1 - Semi Circle
Layout 2 - Rectangle
Note : There is NO gap between the semi circle and rectangle. This gap is the problem that I'm addressing now.
Actually Layout 1(horizontal) has three sub layouts (vertical) and the middle sub layout contains an image view which is the semi cirlce.
When I dont use a 9 patch image, there is no gap and it blends perfectly with the Layout 2. But I am required to use a 9 patch image because of the possibility of incorrect stretching of the semi circle.
But when I do use a 9patch image, there is this weird partition created between the two layouts.
it must be a 9patch problem. but how can it be solved?
I just require a method to use a 9patch image of this semi circle without this gap because it may look odd.
Note : the 9patch dots are ONLY on the right and left empty side, not anywhere at the top and bottom.
This is the excerpt from the XMl file :
<LinearLayout
android:id="#+id/name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_weight="2" >
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1.98"
android:gravity="center_horizontal" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/semicircle" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_weight="2" >
</LinearLayout>
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2.0"
android:background="#drawable/rectangle" >
</RelativeLayout>
Related
I have custom ExoPlayer control bar. It takes quite a lot of space and I want to make it a bit narrower.
Here is what I want to remove/narrower (highlighted with red):
As you see I managed to remove some spaces already by playing around with paddingTop, layout_marginTop, layout_height parameters (it used to be even larger).
But it is not enough, it still takes a lot of space.
Question: How to narrower empty areas marked on the picture?
Here is what my custom exo_player_control_view.xml looks like (removed most of the elements for the purpose of simplicity):
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#CC000000"
android:layoutDirection="ltr"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<ImageButton
android:id="#id/exo_play"
style="#style/ExoMediaButton.Play" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal">
<com.google.android.exoplayer2.ui.DefaultTimeBar
android:id="#id/exo_progress"
android:layout_width="0dp"
android:layout_height="18dp"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>
Note: I fully understand that by narrowing those areas I might make the control panel less usable. It is ok. I want at least to have an ability to change them and test how it works.
First thing you should do is define height and width of ImageButton to wrap_content so it can behave properly.
The padding above play button is due to lack of height and width
Now the main thing. if you want to remove padding of TimeBar you need to set app:touch_target_height this height increasing the padding between your play button and time bar.This height is the touch area for inner bar, you can use this to increase the user touch area without increasing bar size and this will look like padding. make size 0dp and padding will be gone
well there is one more padding that is image padding..i pulled this play button image from exoPlayer library and i found this image also have some default padding. if you want to remove that padding also then change this image.
this play button image have size in square and as you can see the play button is a triangle, so they added padding to make this image in center and square.
Extra:- you can also define the size of inner bar by using app:bar_height but remember app:bar_height cannot cross app:touch_target_height. even if you define it more then app:touch_target_height you will see no effect. you can increase these size and see more by yourself below is the final result that i got (also edited and removed image padding). the button touching the bar(button background is null time bar background is #9e0c26)
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#CC000000"
android:layoutDirection="ltr"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<ImageButton
android:id="#id/exo_play"
style="#style/ExoMediaButton.Play"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal">
<com.google.android.exoplayer2.ui.DefaultTimeBar
android:id="#id/exo_progress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:bar_height="2dp"
app:touch_target_height="2dp" />
</LinearLayout>
</LinearLayout>
Image of what I want to do
I want to align the center of the smaller red box to the left-edge of the black box. The red box has it's width and height set to wrap_content and there is a text-view inside. The black box takes up half the screen width. It's in a linear-layout with a spacer on the left and right, the spacers have .25 weight while the black-box has .5 weight.
I'd prefer to do this in XML without the use of margins. The red-box may contain 2 characters or 20, the contents come from the server.
There's only "toLeftOf" and "alignLeft". What I want to do is essentially "align center of box to left edge of another box".
Here is a simple implementation of what you want using only XML.
<?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="wrap_content">
<ImageView
android:layout_width="100dp"
android:layout_height="50dp"
android:id="#+id/imageView"
android:background="#000000"
android:layout_marginLeft="50dp" />
<ImageView
android:layout_width="50dp"
android:layout_height="25dp"
android:id="#+id/imageView2"
android:background="#ff0000"
android:layout_marginTop="-40dp"
android:layout_marginLeft="25dp" />
You can try this xml for your purpose. But what you want center of black box with dynamic content, but it's not recommended, the reason is, if Content too long or too short, it will not look good in UI, because You want to maintain width of red box dynamically as well as center of left edge also. So black box size also you need to change everytime. That is not good. Please try my solution and you can always modify this layout as per your thought process.
<?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">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="#+id/view_1"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_marginLeft="50dp"
android:layout_marginRight="50dp"
android:background="#000000" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#id/view_1"
android:layout_centerVertical="true"
android:background="#ff0000">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="10dp"
android:text="Hi"
android:textColor="#ffffff" />
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>
Hope it will help you !
I´ve tried a few thinks to achive the following thing:
For the discription: I want to have a header with a textview which wraps over the howl page and below this header I want to display three images beside each other. It should be like a image gallery. This layout i want to duplicate.
But my problem is, that I the height of the ImageView is to high and that there is a distance between the sized image and the title. See figure.
On the Left is what I want and on the right is what I got...
Here is my layout code:
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scrollbars="none"
android:layout_weight="1">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:textStyle="bold"
android:text="titel"
android:id="#+id/titel"
android:gravity="center"
android:padding="3dp"
android:textSize="18sp"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/titel">
<ImageView
android:layout_width="0dp"
android:layout_weight="0.208"
android:layout_height="match_parent"
android:id="#+id/image1"
android:src="#drawable/1"/>
<ImageView
android:layout_width="0dp"
android:layout_weight="0.389"
android:layout_height="match_parent"
android:id="#+id/image2"
android:src="#drawable/2"/>
<ImageView
android:layout_width="0dp"
android:layout_weight="0.403"
android:layout_height="match_parent"
android:id="#+id/image3"
android:src="#drawable/3"/>
</LinearLayout>
</RelativeLayout>
</ScrollView>
my best guess is because your ImageView scales your image in a way that it fits into the center of the view and leaves empty space around the top and bottom of the view. try adding android:adjustViewBounds="true" to your ImageView in the xml.
on a side note, when debugging view hierarchy, it's almost always gonna be helpful to go to Android Device Monitor, select your devices to the right, and click Dump View Hierarchy for UI Automator. You can easily find out which view is taking the extra space by hovering your mouse over different view elements.
I have a banner that I am displaying on an Android Layout. On this banner, I have two avatars that I would like to display next to each other, and most importantly, I would like to have them displayed where the midway point of these two avatars on the y-axis is aligned with the bottom of the banner that these avatars sit on top of.
How would you do this?
Edit:
In other words, I'm asking how you could use an parameter like android:layout_below, but instead of it aligning the top of the imageview with the botton of the specified layout, to align the center.
Unfortunately, there is no direct layout parameter to align a center point with another edge. If the height of your avatars is fixed, you could add some padding that is half the height so they all line up; i.e.
<?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">
<ImageView
android:id="#+id/banner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="25dp"
android:src="#drawable/banner" />
<ImageView
android:id="#+id/avatar1"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_alignBottom="#id/banner"
android:src="#drawable/horse" />
<ImageView
android:id="#+id/avatar2"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_alignBottom="#id/banner"
android:layout_toRightOf="#id/avatar1"
android:src="#drawable/horse" />
</RelativeLayout>
If the heights of those items, however, is dynamic, then you will need to create a custom ViewGroup container so you can measure the avatar heights (in onMeasure()) and apply the padding (or other offset value) at runtime.
Put them in a linear layout, and then give them a width to fill the parent. Then you can use the weight property to disperse the widths equally.
<?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:orientation="horizontal" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="#drawable/clock" />
<ImageView
android:id="#+id/imageView2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="#drawable/clock" />
</LinearLayout>
I'd like to use a small (icon size) image as the background for my view, but it gets stretched to fill all the view.
Any solution (including some way to place a view under my current one and make the latter transparent) will be appreciated.
Thanks !
current code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/icon"
android:id="#+id/layout_main"
>
You have two choices:
Make the image bigger. Specifically, add a single black line all around its edges, then use the tools/draw9patch tool to make that black line the 'stretchable' part. When the image is scaled up to the background, your original icon will not be stretched.
Give up on the android:background and use a top level RelativeLayout instead. This should work
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageSwitcher
android:id="#+id/ImageSwitcher01"
android:layout_width="wrap_content"
android:layout_centerInParent="true"
android:layout_height="wrap_content"
android:background="#drawable/icon">
</ImageSwitcher>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true">
<TextView
android:text="Your old top level here"
android:layout_height="wrap_content"
android:layout_width="wrap_content">
</TextView>
</LinearLayout>
</RelativeLayout>
Hope this helps