LinearLayout above ImageView not getting displayin Fragment? - android

I have ImageView which needs to be shown in full height available. However at top i have created LinearLayout which contains Text and Image. I want it to display at top but also want to image to fit screen. I have linear layout at bottom and its working fine.
This is my code for LinearLayout which i want to show at top. I have hidden actionbar
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:id="#+id/actionbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#android:color/black"
android:gravity="top"
android:orientation="horizontal"
android:visibility="visible" >
<ImageView
android:id="#+id/backbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:paddingLeft="10dp"
android:src="#drawable/back_button" />
<TextView
android:id="#+id/titleofscreen"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Testing"
android:textColor="#22c064"
android:textSize="18sp" />
</LinearLayout>
<ImageView
android:id="#+id/imageShown"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:scaleType="fitXY" />
</FrameLayout>
If i dont set imageView scale type to android:scaleType="fitXY" then it works but image doesnt fit screen.
I want to display image to fit between above bar which contains Text and below it has some icons. But if i make image scaletype ='fitXY' it doesnt display above text. Following is screenshot but i want image to occupy space

If you want the image to be below the actionbar you should not use the FrameLayout as a parent. You either should use vertical LinearLayout with weight or `RelativeLayout". Try following code:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/actionbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#android:color/black"
android:gravity="top"
android:orientation="horizontal"
android:visibility="visible" >
<ImageView
android:id="#+id/backbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:paddingLeft="10dp"
android:src="#drawable/back_button" />
<TextView
android:id="#+id/titleofscreen"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Testing"
android:textColor="#22c064"
android:textSize="18sp" />
</LinearLayout>
<ImageView
android:id="#+id/imageShown"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/actionbar"
android:layout_alignParentBottom="true"
android:scaleType="fitCenter"
/>
</RelativeLayout>
Also I doubt that you use fitXY as android:scaleType, because it doesn't maintain the aspect ratio of the image - so your image will be deformed (stretched). In your case you should rather use fitCenter, but it depends on how exactly you want to scale your image - you can also play with centerInside or centerCrop.

Related

Making a view displayed on top of other views and always onscreen

I have this layout
<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">
<ImageView
android:id="#+id/imgDisplay"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="centerCrop" />
<LinearLayout
android:id="#+id/MainLinearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
android:background="#drawable/bg"
android:keepScreenOn="true"
tools:context=".MainActivity">
<TextView
style="#style/MyTextStyle"
android:id="#+id/MessageTextView"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:gravity="center"
android:layout_marginTop="20dp"
android:layout_marginBottom="20dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_centerHorizontal="true"
android:visibility="gone"/>
<ImageButton
android:src="#drawable/ic_angry"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/AngryImageButton"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:adjustViewBounds="true"
android:layout_gravity="center_horizontal"
android:background="#null"
android:scaleType="fitCenter" />
<LinearLayout
android:id="#+id/BottomLinearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:gravity="bottom"
android:layout_below="#+id/FacesHolderFrameLayout"
android:orientation="horizontal"
android:foregroundGravity="bottom">
<Space
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1" />
<ImageButton
android:layout_weight="1"
android:src="#drawable/ic_insert_chart_white_48dp"
android:layout_width="wrap_content"
android:layout_height="54dp"
android:id="#+id/StatisticsImageButton"
android:background="#null"
android:layout_marginTop="20dp"
android:scaleType="fitCenter" />
<Space
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
Which in general is an imageview that takes the whole screen and acts as a background image, the above it i have a linearlayout (MainLinearLayout) that hold vertically a textview, an imagebutton (AngryImageButton) and another linearlayout (BottomLinearLayout) that is just display a small image (like the logo) horizontally centered.
I want to be able to change programatically the size of the AngryImageButton and the BottomLinearLayout to be displayed in the bottom of the screen and to be always visible. I mean to be on top of the other views.
Right now the BottomLinearLayout appears in the center and below the MainLinearLayout and if i make the AngryImageButton very large, it pushes below the BottomLinearLayout until its not visible in the screen at all, i don't want that. I want it to be at the bottom, and always visible.
How i can accomplish that? Also i want the layout to work in both orientations
To bring View to front, you can use
myView.bringToFront()
or You can make use of ViewCompat and set its translation Z like below.
ViewCompat.setTranslationZ(view, 1)
here's the doc for bringToFront() bringToFront()

ImageView with spacing even with `wrap_content`

Can someone help me? My ImageView gets huge spacing for no apparent reason. Xml:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/fragment_container_3"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:layout_marginTop="50dp"
android:id="#+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="#+id/cv1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:layout_marginBottom="6dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
card_view:cardElevation="10dp"
card_view:cardCornerRadius="4dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/img"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginBottom="0dp"
android:padding="0dp"
android:src="#drawable/list_cli2"
android:contentDescription="123" />
<TextView
android:id="#+id/totalCli"
android:layout_width="300dp"
android:paddingBottom="10dp"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:textColor="#fff"
android:layout_marginTop="10dp"
android:text="Total de Clientes: Buscando..."
android:textAllCaps="false"
android:textAppearance="#style/TextAppearance.AppCompat.Title" />
<com.github.mikephil.charting.charts.PieChart
android:id="#+id/cliChar"
android:layout_width="300dp"
android:layout_height="200dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="21dp" />
</RelativeLayout>
</android.support.v7.widget.CardView>
...
</RelativeLayout>
</ScrollView>
<android.support.design.widget.FloatingActionButton
android:id="#+id/refresh"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom|right"
android:layout_marginRight="18dp"
android:layout_marginBottom="60dp"
android:clickable="true"
app:backgroundTint="#android:color/background_dark"
app:fabSize="normal"
app:srcCompat="#drawable/refresh"/>
</FrameLayout>
Stays like this:
If I set the android: layout_height = "" with a low value, type 200dp, the spacing goes away, but in this case, on smaller devices, the view will be out of date. Already tried:
Placing the image as the background of a LinearLayout but the spacing was both above and below.
Placing the ImageView inside the LinearLayout however has done the same thing as above.
Does anyone know how to solve it?
If I put it outside the ScrollView, ImageView is centered in the middle of the screen
Add this to your imageview:
android:scaleType="centerCrop"
The scale type property will tell how the image should fit within the available space. Center crop will make it fill the whole space, but as a trade off the image will seem zoomed. There are other scale types you can try here.
It looks like your list_cli2 drawable already has the white space. Check it by open it with the image editor and see if the white space is there.

(android) ImageView gets bigger when i set background

When "btn_report_addImage1" is clicked, the app call camera function to take a picture. then, the button is gone and the inner relativeLayout is appeared to show the picture i took and to show remove button on the top-right side of the picture.
The problem is:
I set the size of the image view with 65dp for width and height.
But when the picture is shown on the imageView, the picture gets bigger than before.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="65dp"
android:orientation="horizontal">
<RelativeLayout
android:layout_width="65dp"
android:layout_height="match_parent">
<Button
android:id="#+id/btn_report_addImage1"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<RelativeLayout
android:id="#+id/layout_report_image1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone" >
<ImageView
android:id="#+id/image_report_image1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"/>
<Button
android:id="#+id/btn_report_removeImage1"
android:layout_width="35dp"
android:layout_height="25dp"
android:layout_alignParentRight="true"
android:text="-"
android:textSize="5dp"
/>
</RelativeLayout>
</RelativeLayout>
<RelativeLayout
android:layout_width="65dp"
android:layout_height="match_parent"
android:layout_marginLeft="5dp">
<Button
android:id="#+id/btn_report_addImage2"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<RelativeLayout
android:id="#+id/layout_report_image2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone">
<ImageView
android:id="#+id/image_report_image2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"/>
<Button
android:id="#+id/btn_report_removeImage2"
android:layout_width="35dp"
android:layout_height="25dp"
android:layout_alignParentRight="true"/>
</RelativeLayout>
</RelativeLayout>
You have given the scaleType as fitXY. That's the reason. android:scaleType="fitXY"
Scaling Image to fit the view in both the Axis we call fitXY, in your case you have already defined the l*b of Image, So remove the ScaleType = fitXY:
<ImageView
android:id="#+id/image_report_image1"
android:layout_width="match_parent"
android:layout_height="match_parent" />
// scaleType removed
You can set ImageView scaleType 'centerCrop'.
<ImageView
android:id="#+id/image_report_image1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
try to add image pragmatically in src. so you can get image size proper and display proper.

Android 2 Image view with half display in left side and half display in right side

I am drawing a Linear layout in Android to display 2 images with half image in left side and half image.
I draw like this :
but I want to draw like below, can you please help me to draw the image like below.
My layout file is here:
<?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" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1.5" >
<ImageView
android:id="#+id/sideLeft"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1.5"
android:layout_marginBottom="10dp"
android:background="#drawable/user"
android:scaleType="centerCrop" />
<ImageView
android:id="#+id/sideRight"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="1dp"
android:layout_weight="1.5"
android:layout_marginBottom="10dp"
android:background="#drawable/user"
android:scaleType="centerCrop" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
That will look like a 1 image.
Thanks In Advance!
You need to work on java for such output,
Set both image fit center,
And from Java set first imageview's right padding as -width/2, and second imageview's left padding as -width/2.
Here width is imageview's width.
It may help you.
Try this
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="0dp"
android:gravity="center"
android:layout_weight="1.5" >
<ImageView
android:id="#+id/sideLeft"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:background="#drawable/user"
android:scaleType="centerCrop" />
<ImageView
android:id="#+id/sideRight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="1dp"
android:layout_marginBottom="10dp"
android:background="#drawable/user"
android:scaleType="centerCrop" />
</LinearLayout>

ImageViews aren't aligned vertically when using padding

Im trying to get two ImageViews side by side with a gap around the image. Ive been using Padding, Margin etc and all have had the same effect (See Image Below)
as you can see the image on the right is shifted upwards, how do i stop this?
Here's the layout file im using:
<?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="vertical" >
<!-- Top Row -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/tab_headlines"
android:src="#drawable/headlines"
android:layout_margin="5sp"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/tab_headlines"
android:src="#drawable/headlines"
/>
</LinearLayout>
I am going to be using more rows of images hence the extra LinearLayout
Use layout_weight to divide your layout equally. Try the following code:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<!-- Top Row -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="6dp"
android:layout_marginRight="3dp"
android:layout_weight="1"
android:contentDescription="#string/tab_headlines"
android:src="#drawable/headlines" />
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="3dp"
android:layout_marginRight="6dp"
android:layout_weight="1"
android:contentDescription="#string/tab_headlines"
android:src="#drawable/headlines" />
</LinearLayout>
</LinearLayout>
Also, never use sp for specifying layout dimensions. Use dp instead.
You have given layout_margin for left side image and didn't give for the right side image.That's where the issue lies. If you want only two images in a row and if the image size is same for the both then you can make use of layout_weight attribute and give padding for space in between them.
so,try this. It will work.
<!-- Top Row -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:contentDescription="#string/tab_headlines"
android:src="#drawable/headlines"
android:padding="3dp"
/>
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:contentDescription="#string/tab_headlines"
android:src="#drawable/headlines"
android:padding="3dp"
/>
</LinearLayout>
To fix Vertical alignment :
Use android:layout_height="match_parent" in your ImageView
by using android:layout_height="match_parent" inside ImageView it will be matched to its parent your LinearLayout which is android:layout_height="wrap_content"
Now Question arises why the height will be same for both ImageViews ?
Reason your parent LinearLayout's Height will be automatically chosen from ImageView Whose height is greater because of android:layout_height="wrap_content" in your LinearLayout !
and by using android:layout_height="match_parent" you will be using same height for ImageView whose height is smaller !
To Fix Horizontal alignment :
use android:layout_weight="equal weight value for btoh"
change your code to
<ImageView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:contentDescription="#string/tab_headlines"
android:src="#drawable/headlines"
android:layout_margin="5sp"
/>
<ImageView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:contentDescription="#string/tab_headlines"
android:src="#drawable/headlines"
/>

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