I have 2 views in a layout - TextView and Button. TextView is aligned/anchored to the left side and the button is to the right side.
What I'm trying to achieve is the natural "wrap behavior" of the Button. When TextView will be wide enough so that there won't be space for the button (in the same line), it should move below the TextView, while still anchored to the right.
Here are 3 scenarios for the layout which I want to achieve:
I was trying to make this with FlexBoxLayout, but the button appears on the left side after wrapping.
<com.google.android.flexbox.FlexboxLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:flexDirection="row"
app:flexWrap="wrap"
app:justifyContent="space_between"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="text text"
android:gravity="start"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="end"
android:text="Button"
/>
</com.google.android.flexbox.FlexboxLayout>
So how can I do that? It doesn't need to be FlexBox, I can use any layout, even 3rd party.
Use justifyContent="flex_end" in the parent and set layout_flexGrow to the children like this works for me.
<com.google.android.flexbox.FlexboxLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="300dp"
android:layout_height="wrap_content"
app:flexDirection="row"
app:flexWrap="wrap"
app:justifyContent="flex_end">
<TextView
android:id="#+id/textview2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="10dp"
android:text="blah blah"
app:layout_flexGrow="1" />
<TextView
android:id="#+id/textview3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="10dp"
android:text="( . )( . )"
app:layout_flexGrow="0" />
</com.google.android.flexbox.FlexboxLayout>
No need for a 3rd party layout.
ConstraintLayout should be more than enough - with a small tweak in code.
Your TextView will have straightforward constraints, set to parent layout (start, top, end).
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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"
xmlns:tools="http://schemas.android.com/tools">
<TextView
android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="Text text text text text text" />
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="#+id/text" />
</android.support.constraint.ConstraintLayout>
In the code, just check the width of the TextView and compare it with the width of the parent (basically check it should overlap with the button).
If it does change(you will have to do this in code but this is the principle):
app:layout_constraintTop_toTopOf="#+id/text"
to
app:layout_constraintTop_toBottomOf="#+id/text"
If you need to do this dynamically ConstraintLayout has neat feature "Keyframe animations" that creates awesome looking animations when you are changing constraints.
Doesn't seem like there is a way to do it with Flexbox. I would just do it programmatically when you've inflated the resource (in onCreateView() or something like that). The parent of both of the views would be a RelativeLayout, with the Button aligned to the TextView top when the widths combined don't exceed the width of the RelativeLayout, and aligned to the bottom of the TextView when the widths are larger than that.
Related
If I have two textviews vertically aligned where either the one OR the other could contain the longer text, how can I vertically align these so their background image LOOKS like it is one complete background for both TextViews (so one big box no matter which of those views contains the longer text)
Reason is that I use the textviews on top of a picture but need to shadow them in case the picture has the same color as the textview
UPDATE:
As the comments suggested I now used a linear layout like this, but now there is a very small gap between the textviews that wasn't there with ConstraintLayout. Any idea how to fix?
<androidx.appcompat.widget.LinearLayoutCompat
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_marginEnd="10dp">
<TextView
android:id="#+id/tv1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/bg_overlay_top"
android:paddingStart="6dp"
android:paddingTop="6dp"
android:paddingEnd="6dp"
android:text="TextView1"
android:textColor="?colorOnPrimary"
android:textSize="13sp"/>
<TextView
android:id="#+id/tv2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="14dp"
android:background="#drawable/bg_overlay_bottom"
android:paddingStart="6dp"
android:paddingEnd="6dp"
android:paddingBottom="6dp"
android:text="TextVie2 long"
android:textColor="?attr/colorOnPrimary"
android:textSize="16sp"
android:textStyle="bold"/>
</androidx.appcompat.widget.LinearLayoutCompat>
UPDATE 2
I now used a complete image as background of the linear layout, but sadly this solution does not work either, the linear layout only constraints to the lower text view, which means if the lower is shorter then the upper, the upper one gets truncated
Here is how you can get the two TextViews to have the same width regardless of which view has the longer text.
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/textView1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#android:color/darker_gray"
android:text="Here is some long, long text."
android:textSize="28sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="#id/barrierEnd"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintWidth_min="wrap" />
<TextView
android:id="#+id/textView2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#android:color/darker_gray"
android:gravity="center"
android:text="Bottom"
android:textSize="28sp"
app:layout_constraintEnd_toEndOf="#id/barrierEnd"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView1"
app:layout_constraintWidth_min="wrap" />
<androidx.constraintlayout.widget.Barrier
android:id="#+id/barrierEnd"
android:layout_width="0dp"
android:layout_height="0dp"
app:barrierDirection="end"
app:constraint_referenced_ids="textView1,textView2"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
This solution was borrowed from here. I took a stab at explaining why it works here.
For one big blue background as you said, you can use a vertical LinearLayout as a container of both TextViews and set its background color to blue.
If you are using a vertical LinearLayout, you could set android:layout_width (of the TextViews) to "match_parent" instead of "wrap_content".
Edit: Into the outer vertical LinearLayout put an another vertical LinearLayout with android:layout_width="wrap_content" and the 2 TextViews inside with android:layout_width="match_parent"
If you're using constraint layout then
app:layout_constraintStart_toStartOf
would be working for you , also using baseline would be very useful too.
In a ConstraintLayout, I have 2 TextView's side-by-side, and I want the right one to wrap text when it becomes too long so that it stays on the right of the left TextView, and doesn't overflow the container. Here is the code I have now:
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10sp">
...
<TextView
android:id="#+id/buildingTypeLabel"
style="#style/FormLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="5sp"
android:paddingBottom="5sp"
android:text="#string/reference_view_building_type"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="#id/dateLabel"
tools:text="Type de bâtiment" />
<TextView
android:id="#+id/buildingType"
style="#style/FormValue"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:layout_marginStart="5dp"
android:layout_weight="1"
android:ellipsize="none"
android:maxLines="100"
android:scrollHorizontally="false"
app:layout_constraintBaseline_toBaselineOf="#id/buildingTypeLabel"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toEndOf="#+id/buildingTypeLabel"
app:layout_constraintTop_toBottomOf="#id/date"
tools:text="Bâtiments gouvernementaux" />
...
</androidx.constraintlayout.widget.ConstraintLayout>
But instead of putting text text on 2 lines in the right TextView, it overflows on the right:
Note that I have tried to add app:layout_constrainedWidth="true" to the right TextView, but it doesn't change anything.
How can I strictly enforce the right and left contraints of that TextView and have it wrap text to have a smaller width when needed?
Try to change to layout_constraintEnd_toEndOf instead layout_constraintRight_toRightOf :)
Use ellipsize= "end" for the textview on the right that is extending text outside of the device screen.
Use Guidelines
Guidelines are part of the constraint layout api.
Documentation are here ->
https://developer.android.com/reference/androidx/constraintlayout/widget/Guideline
This is how you can define your guideline in xml.
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guideline_start"
android:layout_width="0dp"
android:layout_height="0dp"
android:orientation="vertical"
app:layout_constraintGuide_begin="?dialogPreferredPadding" />
Guidlines can act as a differentiating factor between the two text views that you want to segregate .
Refer to this stackoverflow answer for much better understanding
What is difference between Barrier and Guideline in Constraint Layout?
The above link will also introduce you to barriers which is also part of constraint layout api which can also help you solve the above issue.
Below you can find the solution:
<androidx.constraintlayout.widget.ConstraintLayout 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"
android:padding="10sp">
<TextView
android:id="#+id/buildingTypeLabel"
style="#style/FormLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:paddingTop="5sp"
android:paddingBottom="5sp"
android:text="#string/reference_view_building_type"
app:layout_constraintEnd_toStartOf="#id/buildingType"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/dateLabel"
tools:text="Type de bâtiment" />
<TextView
android:id="#+id/buildingType"
style="#style/FormValue"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:maxLines="100"
app:layout_constraintBaseline_toBaselineOf="#id/buildingTypeLabel"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/buildingTypeLabel"
app:layout_constraintTop_toBottomOf="#id/date"
tools:text="Bâtiments gouvernementaux\n\nlef,le,flelf,le,fle," />
</androidx.constraintlayout.widget.ConstraintLayout>
I have an arbitrary length textview+icon (icon+text) that needs centering on the screen. On the same row, there is a button aligned to the right side of the screen. (X)
| icon+text | X |
Using a LinearLayout I can center it with the view, but the button on the right shifts it left.
With a relative layout, I can achieve what I want but if the text is too long the button overlaps the text.
What's the right way to do this? I haven't used constraintLayout before, would that solve it?
I suggest you to use a constraint layout,
Example:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".YourActivity">
<TextView
android:id="#+id/my_text_view"
android:text="My Long Text That must not overlap the button"
android:layout_width="0dp"
android:gravity="center"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
app:layout_constraintHorizontal_chainStyle="spread_inside"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="#+id/my_btn"
app:layout_constraintTop_toTopOf="#+id/my_btn"
app:layout_constraintBottom_toBottomOf="#+id/my_btn"/>
<Button
android:id="#+id/my_btn"
android:layout_marginTop="16dp"
android:text="My Nice Button "
android:layout_marginEnd="8dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintStart_toEndOf="#id/my_text_view"
app:layout_constraintEnd_toEndOf="parent"/>
</android.support.constraint.ConstraintLayout>
Example Output:
You can set it like this,
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.2"
android:drawableLeft="#mipmap/ic_launcher"
android:text="Click" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.8"
android:gravity="center"
android:text="TextView" />
</LinearLayout>
just use a Relative Layout.
Center your Textview
and put toRightOf=txtViewsName on the button.
//UPDATED Forcing Widths in DP to ensure text is always centered and never overlaps button.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableLeft="#mipmap/ic_launcher"
android:maxWidth="230dp"
android:layout_centerHorizontal="true"
android:ellipsize="end"
android:text="My text to show test abcdefghyijkldkf here" />
<Button
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="Button" />
</RelativeLayout>
You will need to adjust the button width and textview maxwidth to match your design, and confirm on preview all resolutions, but dp should cover you pretty well in this case.
NOTE*
This simply answers your issue, but does not do any funny behavior, i.e. if text grows too much ignore center command and start moving to the left, this does not do that. If that is your desire, please update your question.
//Centering Text in left view and using weight to ensure text area takes proper percentage of the space (based on your comments, not the layout you are looking for, but I'll leave it in case it helps someone else).
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="10">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="7"
android:drawableLeft="#mipmap/ic_launcher"
android:gravity="center"
android:text="My text to show here" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3"
android:text="Button" />
</LinearLayout>
for best practice i think ConstraintLayout is the best solution for designing and yes of course it helps you for what are you looking for.
for more info check this Build a Responsive UI with ConstraintLayout and this
ConstraintLayout.
Since your ImageButton on right has a fixed width (let's say 40dp for the purpose of this example) you can achieve the desired result by adding a margin of the same width at the end of your TextView to ensure that they're not overlapping. To keep the TextView centered on the screen you have to add the same margin at the start as well:
<android.support.constraint.ConstraintLayout 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="wrap_content">
<TextView
android:id="#+id/textview"
android:text="TextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="40dp"
android:layout_marginEnd="40dp"
app:layout_constrainedWidth="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageButton
android:id="#+id/button"
android:layout_width="40dp"
android:layout_height="40dp"
app:layout_constrainedWidth="true"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintVertical_bias="0.0"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#id/textview"
app:layout_constraintTop_toTopOf="parent"/>
</android.support.constraint.ConstraintLayout>
If you want to center the text within the TextView use android:gravity="center":
If the ImageButton's width was wrap_content then this approach wouldn't work, because there is no way to constraint the end of the TextView both to the end of the parent (so it's centered on the screen) and to the start of the ImageButton (so they don't overlap if the text gets long) at the same time.
In the end I ended up using RelativeLayout per Sam's suggestion with maxWidth and margin set on the TextView.
I'm trying to choose suitable layout for my situation. It will contain three elements: picture, text, button. His task is to be in one line when text is little, and be in two lines if there is big text.
The left side of the picture is tied to the left border of parent. The text on the left is bound to the right edge of the picture, and expands to the right border of parent. The picture is centered vertically relative to the text. RelativeLayout copes with these tasks. But the button has a special behavior.
The button has its right side tied to the right border of parent. But the left side is the trigger: if it reaches the right border of the text, the button goes down below the text, and the layout is now in two rows (visually).
concept picture
Is there such an layout? What would you choose? Thanks for your help.
P.S. recently I discovered Barrier in ConstraintLayout, perhaps there is a similar trigger, but which pushes the elements when there is not enough space for them... Current code id:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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="wrap_content"
>
<RelativeLayout
android:id="#+id/relativeLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:id="#+id/image"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_centerVertical="true"
app:srcCompat="#f00"/>
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignStart="#+id/image"
android:layout_centerVertical="true"
android:layout_marginStart="48dp"
android:fontFamily="sans-serif"
android:text="some very very very very very very very very very very very very very very long text"
android:textColor="#F00"
android:textSize="24sp"/>
</RelativeLayout>
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="sans-serif"
android:text="Button"
android:textColor="#000"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/relativeLayout"/>
</android.support.constraint.ConstraintLayout>
I have this layout, where I have text view and an icon next to it.
However, the text is dynamically changing, so sometime it will be too long which push the icon out of the screen.
I tried to add weight to the text but it makes the icon on the right side of the screen which I don't want, I just want it right after the text even if the text go to the next line.
There is my code:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/Text"
android:layout_marginLeft="25dp"
android:text="llllll"
/>
<android.support.v7.widget.AppCompatImageButton
android:id="#+id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:background="#android:color/transparent"
android:src="#drawable/ic_arrow_drop_down_black_24dp" />
</LinearLayout>
any idea :(?
You can use ConstraintLayout to handle this.
<android.support.constraint.ConstraintLayout
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">
<TextView
android:id="#+id/text"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintHorizontal_bias="0"
app:layout_constraintHorizontal_chainStyle="packed"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="#+id/image"
app:layout_constraintWidth_default="wrap"/>
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintLeft_toRightOf="#+id/text"
app:layout_constraintRight_toRightOf="parent" />
</android.support.constraint.ConstraintLayout>
Just simply add one property line in textview "android:maxWidth" like below :
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/Text"
android:layout_marginLeft="25dp"
android:text="llllll"
android:maxWidth="100dp" //it can be your specific size
/>
<android.support.v7.widget.AppCompatImageButton
android:id="#+id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:background="#android:color/transparent"
android:src="#drawable/ic_arrow_drop_down_black_24dp" />
</LinearLayout>
You could use <img> tags in the HTML
to know how to do that see this qution (is-it-possible-to-display-inline-images-from-html-in-an-android-textview)
Put the text view inside a relative layout with match parent as width and height wrap content.
Set text view to the same dimensions ie march parent as width and height as wrap content.
Have the image button in the same relative layout and use alignParentEnd as true. You'll see it always add the end of your text view.
If you choose to do this, set some maxEms and ellipsize end so that the text does not overlap the button. You'll get the value by testing it yourself, depends on the text size usually.
Since you want it as a button I'm suggesting this. If you want it just be an icon with no use, you should look into drawableEnd property of the text view.