Develop Reference

how to set measurement of an image before its sibling textView?

I have a linear layout with textView and ImageView.
When i enlarge the text size to large, the image view doesn't have enough space so it's partially hidden.
I want the Image view to be fully displayed and even if the text has to be truncated.
Do i have any simple way to do it? instead of inheriting from LinearLayout and overriding onMeasure?

Try to use Relative View instead of Linear View.. Relative give more command over this.

<?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:gravity="center_vertical"
android:layout_gravity="center"
android:layout_margin="10dp"
android:orientation="horizontal"
android:weightSum="5">
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:src="#drawable/first"
android:layout_gravity="top|center"
android:padding="10dp"
android:gravity="center"
android:layout_weight="1"
/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3"
android:layout_gravity="top|center"
android:gravity="center"
android:textSize="20dp"
android:layout_marginTop="50dp"
android:textStyle="bold"
android:text="textview"/>
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="top|center"
android:padding="10dp"
android:gravity="center"
android:src="#drawable/ic_launcher_background"
/>
</LinearLayout>

I solved it by:
Linear layout. The imageView with a hard coded DP width and height, Text with 0 width and a weight of 1.

Image in chat bubble having unwanted margins

I am having this simple layout for chat bubble.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/bubble_layout_chat_parent"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/bubble_layout_chat"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/message_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="#+id/message_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#android:color/primary_text_light"
android:layout_gravity="top"
android:textSize="16sp"/>
<TextView
android:id="#+id/message_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#999"
android:textSize="10sp"
android:textStyle="italic"
android:textColorHint="#color/grey"
android:layout_gravity="bottom|end"/>
</LinearLayout>
However, when I set image it leaves unwanted margins above and below the image.
How can I remove margins and make the bubble to fit image?
(Note: What I observed is the margins appears only when image width is larger than height. For images having width much smaller than height no margins observed)

use android:scaleType="fitXY" for your imageview

Thanks for everyone's comments. Setting android:adjustViewBounds="true" to ImageView fixed my problem. So my working ImageView now looks like:
<ImageView
android:id="#+id/message_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"/>

Flexible Horizontal Layout with `layout_weight` and `maxWidth`

I have a TextView and a square ImageView that I would like to show in a horizontal linear layout. Each should take half of the parent view's width and the height should fit the content (i.e. the image). The text should be centered vertically.
Additional constraint is that the image should not grow beyond a given maxWidth (= maxHeight), and excess width should be made available to the TextView. Obviously, this conflicts with the 50/50 rule above. Is there a way to prioritize the constraints, i.e. allow the image to take half of the space unless it exceeds a given size?
These are layouts I tried:
The first one nicely stretches the left side to the available space. But the image takes more than half of the width as its layout_weight is not specified (as in image below).
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="vertical"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center_vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Some text."/>
</LinearLayout>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxWidth="200dp"
android:adjustViewBounds="true"
android:src="#drawable/image" />
</LinearLayout>
When I add layout_weight to the ImageView it always takes half of the width and ignore the maxWidth (see image below).
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:maxWidth="200dp"
android:adjustViewBounds="true"
android:src="#drawable/image" />
Enclosing the ImageView in another LinearLayout enables the maxWidth again, but the enclosing LinearLayout still takes half of the available space (see image below).
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="right">
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:maxWidth="200dp"
android:adjustViewBounds="true"
android:src="#drawable/image" />
</LinearLayout>
Another option I have found for similar scenarios is to use a RelativeLayout with an invisible view as a center divider, but that locks the division to 50/50 (or wherever the divider is placed).

Okay, gonna go on ahead and post the xml I created, it's pretty much simple, it does most of your conditions.. One thing I'm having trouble with is the part where each view takes half of the parent view's width. Hope this still helps you in some way.
sample_layout.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="wrap_content"
android:layout_margin="2dp"
android:background="#android:color/darker_gray">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/img_sample"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginRight="2dp"
android:layout_toLeftOf="#id/img_sample"
android:background="#color/colorPrimary"
android:gravity="center_vertical"
android:text="Some text." />
<ImageView
android:id="#id/img_sample"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginLeft="2dp"
android:adjustViewBounds="true"
android:maxWidth="200dp"
android:src="#drawable/sample_img" />
</RelativeLayout>
Here is a sample screenshot:
If ever you figure out how to the the half of each thing, kindly comment it here, It'd be nice to know about it for possible future use. :)
PS: Have you considered doing the half of each thing programatically? Like checking the LayoutParams then dynamically setting weightSum and the layout_weights.
Sample Image retrieved from this link

<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="#id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:layout_weight="1"
android:adjustViewBounds="true"
android:background="#color/blue"
android:src="#drawable/ic_launcher" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:layout_margin="5dp"
android:layout_toStartOf="#id/imageView"
android:background="#color/colorPrimary"
android:padding="10dp"
android:text="Some text. " />
</RelativeLayout>

It won't be a perfect solution in term of performance. But you can achieve it by playing with FrameLayout and ImageView.
Here is the output:
Layout.xml:
<?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="#color/textGray"
android:orientation="vertical">
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/skyBlue">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#android:color/white">
<ImageView
android:id="#+id/imageView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxWidth="200dp"
android:src="#drawable/ic_settings"
android:visibility="invisible" />
<TextView
android:id="#+id/TextView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:text="!" />
</FrameLayout>
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:maxWidth="200dp"
android:src="#drawable/ic_settings" />
</LinearLayout>
</FrameLayout>
</LinearLayout>
In order to achieve desire behaviour, You would have to set same images to both imagesviews in this layout. one of them is invisble, It is just helping to make parent with same width and heights which would lead us to create TextView with same dimensions.
Note: If you want to change textView alignment, you can do it with layout_gravity or gravity.

Native Android: Create dynamically a grid-like scrollable layout with equal width buttons

I am trying to create a layout as per this picture (paint'ed).
Layout Design
Target level is API 17. This has to be created programmatically, not using XML. This has to be a responsive design.
I extensively researched and attempted other partially similar situations on stackoverflow, using GridLayout, TableLayout, GridView, various layout parameters, gravity, weight, view nesting and so on. However,
(a) I can't get the text buttons width to fill the available width real estate as per device screen size and orientation. Buttons with shorter texts are coming with shorter width.
(b) The plus, minus and number buttons are of fixed height and width irrespective of screen sizes and orientation. But they are not aligning with the text button in the left on the same row. only the bottom few pixels are visible.
I would appreciate any code snippet that can achieve the above layout. Thanks a million.
UPDATE:
Following inputs from #tiny-sunlight, I did this. Next I will recreate this programmatically.
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/layoutTable"
android:padding="5dp"
android:orientation="vertical"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="#+id/layoutRow"
android:padding="5dp"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_marginEnd="10dp"
android:layout_weight="17"
android:text="This is my button"
android:textSize="15sp"
android:textAllCaps="false"
android:gravity="start"
android:layout_width="0dp"
android:layout_height="40dp" />
<Button
android:layout_marginEnd="5dp"
android:layout_weight="1"
android:text="-"
android:textSize="15sp"
android:textStyle="bold"
android:layout_width="40dp"
android:layout_height="40dp" />
<TextView
android:layout_marginEnd="5dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:paddingTop="10dp"
android:text="0"
android:textSize="15sp"
android:gravity="center"
android:layout_width="40dp"
android:layout_height="40dp" />
<Button
android:layout_weight="1"
android:text="+"
android:textSize="15sp"
android:textStyle="bold"
android:layout_width="40dp"
android:layout_height="40dp" />
</LinearLayout>
</LinearLayout>
</ScrollView>

Try to build layout below programmatically.
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:padding="5dp"
android:orientation="vertical"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:padding="5dp"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_marginRight="10dp"
android:layout_weight="1"
android:text="1111"
android:layout_width="0dp"
android:layout_height="40dp" />
<ImageView
android:layout_marginRight="5dp"
android:src="#mipmap/ic_launcher"
android:layout_width="40dp"
android:layout_height="40dp" />
<TextView
android:layout_marginRight="5dp"
android:background="#44bb11"
android:layout_marginTop="0dp"
android:paddingTop="10dp"
android:text="11"
android:layout_width="40dp"
android:layout_height="40dp" />
<ImageView
android:src="#mipmap/ic_launcher"
android:layout_width="40dp"
android:layout_height="40dp" />
</LinearLayout>
</LinearLayout>
</ScrollView>

You can use a recycler view, which will provide you scrolling option plus bind views on the fly for you.
So load a linear layout (orientation horizonal) into the recycler view. now for the layout, it then becomes easier. You need a textview, button,textview,button.
For each of these textview and buttons, set widht = 0dp and weight as 7,1,1,1 respectively i.e. your leftmost textview occupy 70% of width whereas all other occupy 10%. Obviously you can change these weights as per your requirements. Thats it for the layout.
Now just fill your data using the adapter.

Make imageview resize to fit its container

I use a relative layout to display a row in a listlayout. What I am showing is an imageview to the left and two textviews to the right. Both the textviews will only have a single line each.
I need to have the image such that it should be automatically resize so its height becomes equal to the height of the text combined. That way, the image height will fit the combined height of both text in all screens. Is this possible? layout is as below -
<ImageView
android:id="#+id/note_img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_marginRight="6dip"
android:src="#drawable/note_icon" />
<TextView android:id="#+id/text1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/note_img"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:includeFontPadding="true"
android:singleLine="true"
style="#android:style/TextAppearance.Medium" />
<TextView android:id="#+id/text2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/note_img"
android:layout_alignParentBottom="true"
android:layout_below="#id/text1"
android:singleLine="true"
style="#android:style/TextAppearance.Small" />
As of now,note_img has a size of 96x96 and the image is shown in full size making the image area considerably large and the two text having huge gap between them.
Really appreciate any help.
Thanks,
Arun

Don't use fill_parent, it's depreceated. Untested, let me know if it works:
<?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="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="#+id/note_img"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginRight="6dip"
android:src="#drawable/note_icon" />
<LinearLayout
android:id="#+id/vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/text1"
style="#android:style/TextAppearance.Medium"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:includeFontPadding="true"
android:singleLine="true" />
<TextView
android:id="#+id/text2"
style="#android:style/TextAppearance.Small"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true" />
</LinearLayout>

After set the Text in TextView set the TextView's height to ImageView like
imageview.getLayoutParams().height = textViewheight;