I am creating an App Gallery using CardView as my widget, but I am facing a problem that the images in my gallery are ignoring the size that I want for them, so they are all overlapping instead of creating a margin for it.
I am adapting the following Android Image Gallery:
https://medium.com/#moforemmanuel/android-simple-image-gallery-30c0f00abe64
I want something like that:
But running my code I get this result when I have more than one image:
And the code that I have based myself on you can see below:
<?xml version="1.0" encoding="utf-8"?>
<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="190dp"
android:layout_height="190dp">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="1dp"
android:layout_marginLeft=".5dp"
android:layout_marginRight=".5dp"
android:layout_marginBottom=".5dp"
app:cardCornerRadius="1dp">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="center"
tools:ignore="ContentDescription" />
</FrameLayout>
</androidx.cardview.widget.CardView>
</RelativeLayout>
What should I change in my code so that I can modify the images' size and still maintain a margin so that I will always have an adaptive layout?
Many thanks!
P.S.:
I've tried what Dharmaraj suggested but then I got the following layout:
Changing android:layout_width and android:layout_height to "200sp", it stills overlaps as you can see below:
To load the images I am using this two functions:
Try out this:
<?xml version="1.0" encoding="utf-8"?>
<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">
<androidx.cardview.widget.CardView
android:layout_width="100sp"
android:layout_height="100sp"
android:layout_marginTop="1sp"
android:layout_marginLeft="1sp"
android:layout_marginRight="1sp"
android:layout_marginBottom="1Sp"
app:cardCornerRadius="1sp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5sp>
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_center="true" />
</RelativeLayout>
</androidx.cardview.widget.CardView>
I've basically replaced FrameLayout with RelativeLayout for ease and please assign a constant height and width to the card view. Don't assign a constant height and width to the main layout. This fixed this problem for me. Please let me know if you need more clarification in the comments.
By the way the attribute android:src in image is missing. Or are you assigning image dynamically?
Related
I've been working on an app and am looking to adding a text view below the Camera view so that I could display some text there.
But, for some reason when trying to drag a text view into the layout it doesn't show up on the final screen.
This is my code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/topLayout"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:keepScreenOn="true">
<com.google.android.CameraSourcePreview
android:id="#+id/preview"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.GraphicOverlay
android:id="#+id/faceOverlay"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</com.google.android.CameraSourcePreview>
</LinearLayout>
Layout view com.google.android.CameraSourcePreview height is set as 'match_parent' , so its eating up all the space on the view-port.
Try giving particular height and you should be able to see textview added below CameraSourcePreview.
Hope it helps.
Most likely, you're not able to add the TextView due to there not being enough space on the screen.
You're using a LinearLayout which displays all of it's views one after the other in either a vertical or horizontal manner.
Your CameraSourcePreview has it's height and width set to match_parent, which means it'll stretch completely on the screen. However, in a LinearLayout, this also means that there's no space to place the next View because it'll be placed off the screen.
You can add android:layout_weight="1" to your CameraSourcePreview. This will allow your TextView to fit into the LinearLayout because it's basically your CameraSourcePreview telling others it'll resize itself to allow for other components to fit on the screen.
But if you don't want your CameraSourcePreview to resize itself based on other Views, then you should look into using some other Layouts instead of LinearLayout. Perhaps one such as ConstraintLayout or RelativeLayout will work better, since they allow overlapping Views on top of each other.
This is happening because the height of the camera view is taking the whole space on the display you can use layout_weight for LinearLayout to make some necessary space for your TextView.
Just make height of CameraSourcePreview equals to 0dp and add a property
android:layout_weight="1"
So this it would look like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/topLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:keepScreenOn="true"
android:orientation="vertical">
<com.google.android.CameraSourcePreview
android:id="#+id/preview"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<com.google.android.GraphicOverlay
android:id="#+id/faceOverlay"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</com.google.android.CameraSourcePreview>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="some text here" />
</LinearLayout>
Instead of using LinearLayout I suggest to use FrameLayout which is easy to control for your case. It is also possible to display textView on CameraSourcePreview by using following code
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/topLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:keepScreenOn="true">
<com.google.android.CameraSourcePreview
android:id="#+id/preview"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_gravity ="center">
<com.google.android.GraphicOverlay
android:id="#+id/faceOverlay"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</com.google.android.CameraSourcePreview>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="some text here"
android:layout_gravity ="center|bottom" />
</FrameLayout>
I have a RecyclerView that includes my custom view.
My custom view not get all the width even so I configure it as match_parent.
what i want is that the horizontal scroll view will take all screen, and also the card will take screen width (so the yelow part will stay outside at beginning)
I've tried to use LayoutInflater.from(getContext()).inflate(R.layout.view_home_screen_card, (ViewGroup) this, false), but didn't work
Also I've tried to set width programmatically, but I'm seeing the wrong size for few milliseconds before it's change and its look ugly.
The weird thing is that when i'm taking out the horizontal scroll view, the view take all place.
attached the layout
<?xml version="1.0" encoding="utf-8"?> <merge
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="wrap_content">
<HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/horizontal_scroll_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none">
<LinearLayout
android:id="#+id/view_home_card_and_button_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="100dp"
android:layout_height="150dp"
android:background="#color/amber_200" />
<android.support.v7.widget.CardView
android:id="#+id/cardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="#dimen/half_unit"
app:cardCornerRadius="#dimen/8dp">
</android.support.v7.widget.CardView>
</LinearLayout>
</HorizontalScrollView>
</merge>
any more ideas?
Is your recyclerview have match_parent width? If no then make it.
I added a fragment with an ImageView, which is a PNG image, and a TextView just below it.
The fragment is showing fine but when I rotate the screen the image will take most of the screen and the TextView is partially cut.
Here's the code:
<?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">
<ImageView
android:id="#+id/shopping_cart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:src="#drawable/shopping_cart" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_below="#id/shopping_cart"
android:text="#string/no_data"
android:gravity="center"/>
</RelativeLayout>
I'm trying to find a way to resize the image in order to show both image and text in the screen
try using a scroll-view as the root element if u want to retain the same image size rather than resizing the image. Here's a small snippet -
<ScrollView
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:fillViewport="true">
<RelativeLayout
android:id="#+id/container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
(all your view elements)
</RelativeLayout>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:id="#+id/text_image_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
(Enter view here)
</LinearLayout>
Alright, so firstly ensure that you have the image for the ImageView in all densities. I would suggest that you use this attribute in your ImageView code:
https://developer.android.com/reference/android/widget/ImageView.ScaleType.html
The scale type defines how your image should scale according to the view. I faced a similar issue once, and i was able to solve it using this. Having said that, i have not seen the image you are using, so i cannot be very sure of it. But, i would say that you use:
android:scaleType="centerCrop"
you can find the definition of the attribute on the link provided above. Also, i do not know what devices you are targeting for your app, but its always good to keep views inside a scroll view so that they are visible even on a smaller screen.
Give it a try, if not by centerCrop, then maybe by some other attribute.
Cheers!!
Here is the code:
<?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">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/shopping_text"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="#string/no_data"/>
<ImageView
android:id="#+id/shopping_cart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#id/shopping_text"
android:src="#drawable/shopping_cart"/>
</RelativeLayout>
I'm just starting android programming and so I'm really noob!
I'm trying to set a plaid image as a background and I want to prevent from shuffling the squares in background and becoming rectangle when phone rotates!
can you come up with a solution to my problem!? preferably handling in XML file! tnx
This is what you are asking for:
<?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:orientation="vertical">
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:src="#drawable/background_image"
android:contentDescription="#string/text" />
</FrameLayout>
<!-- rest of your layout !-->
</RelativeLayout>
just make sure that your image for background is big enough to fill big screen sizes.
I'm currently stuck on my landscape layout. I am implementing a Gallery, and would like it to fit the relative layout's height, and wrap the content via the width. I tried scaleType centerInside, messing with different types of layout_height/width.
Here's where the relevant part of my XML looks like (I apologize for the lack of formatting):
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:padding="10dip"
android:orientation="vertical">
<RelativeLayout
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<Gallery xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/gallery"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentLeft="true"
android:scaleType="centerInside"
/>
Here is the image
of the cutoff.
I don't believe you can apply scaleType to a Gallery: looking at http://developer.android.com/reference/android/widget/Gallery.html I don't see scaleType as one of the supported attributes.
EDIT: You should apply the scaleType attribute on the ImageView you are putting in the Gallery.
I don't think wrap_content works well with the width of a Gallery view.
Instead use android:layout_toRightOf, it will ensure that the Gallery doesn't extend into the area of your textviews. The following code is an example, but I have not tested it.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<LinearLayout
android:id="#+id/right_side"
android:layout_height="fill_parent"
android:layout_width="wrap_content"
android:layout_alignParentLeft="true">
*put your textviews here*
</LinearLayout>
<Gallery
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_toLeftOf="#id/right_side"
/>
</RelativeLayout>