Develop Reference

Can't change GridView dynamically

I'm developing an app. In this app there's an alertdialog that opens when you click a point.
In this alert dialog there are two edittext, a gridview and a button. The gridview has associated a BaseAdapter that convert Uris to IconView (a class that extends ImageView) using Glide.
I want to set a maximum height of 350dp, but if there is just one row (there'll be always one image) I want the gridview to adapt.
I tried this way: How to have a GridView that adapts its height when items are added
But it doesn't work. So what I've tried is to count the number of elements and if there's is more than 2, set 350dp of height if there is less than 2, set 175dp. But it doesnt work.
The alert dialog layout:
<?xml version="1.0" encoding="utf-8"?>
<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="match_parent"
android:orientation="vertical">
<EditText
android:id="#+id/puntoName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="10dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:fontFamily="sans-serif"
android:textSize="24sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="#+id/puntoDescripcion"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="1dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:maxHeight="100dp"
android:textSize="18sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/puntoName" />
<GridView
android:id="#+id/photo_grid"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:gravity="center"
android:horizontalSpacing="6dp"
android:numColumns="2"
android:verticalSpacing="5dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/puntoDescripcion"></GridView>
<Button
android:id="#+id/cerrar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cerrar"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/photo_grid" />
</androidx.constraintlayout.widget.ConstraintLayout>
This is the code I'm using in order to change GridView height:
fun checkSize() {
val popUp: View = fragmentCaller.layoutInflater.inflate(R.layout.popup,null)
var photogrid: GridView = popUp.findViewById(R.id.photo_grid)
var params: ViewGroup.LayoutParams = photogrid.layoutParams
var tam: Int = 175
if (adapter.getDataSource().size>2) {
tam = DpToPixels(350)
}
photogrid.layoutParams.height = tam
photogrid.requestLayout()
}
private fun DpToPixels(dp: Int) : Int {
val escala: Float = fragmentCaller.requireContext().resources.displayMetrics.density;
var tam: Int = (dp * escala + 0.5f).toInt()
return tam
}
The size of the gridView is always 0. I don't know why. I just want to set android:layout_height programmatically. I call checkSize() method after I call Dialog.show() and everytime I do changes in the elements of adapter.
Thanks.

ChatKit library : incoming image wrong margins

I'm using ChatKit library (https://github.com/stfalcon-studio/ChatKit/) for a chat feature in my app.
In the message list provided by the library, I also included images messages.
It works fine, but the bubble's layout of the images is ambiguous, as the following picture :
Bubble picture 1 and 3 should be aligned on the right side, but they are stick on the left in the available space for incoming messages.
Note that the default text messages bubbles are displayed correctly on
the right.
I didn't find any attributes for the layout in the library to configure this behaviour.
This is my XML for the message list :
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/swipe_refresh_comments"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.stfalcon.chatkit.messages.MessagesList
android:id="#+id/messagesList"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/input_comment"
app:incomingDefaultBubbleColor="#color/lightGrayRetail"
app:incomingTimeTextColor="#color/white"
app:incomingDefaultBubblePressedColor="#color/lightGrayRetail"
app:incomingDefaultImageOverlayPressedColor="#color/lightGrayRetail"
app:outcomingDefaultBubblePressedColor="#color/pinkRetail"
app:outcomingDefaultImageOverlayPressedColor="#color/pinkRetail"
app:outcomingDefaultBubbleColor="#color/pinkRetail"
app:outcomingTimeTextColor="#color/colorMaterialGray" />
</android.support.v4.widget.SwipeRefreshLayout>
My incoming text message layout layout :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_marginTop="8dp">
<TextView
android:id="#+id/displayNameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignStart="#+id/bubble"
android:layout_marginStart="8dp"
android:layout_marginBottom="8dp"
android:textColor="#color/colorMaterialGray"/>
<de.hdodenhof.circleimageview.CircleImageView
android:id="#id/messageUserAvatar"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginEnd="8dp"
android:src="#drawable/woman" />
<ImageView
android:id="#+id/onlineIndicator"
android:layout_width="12dp"
android:layout_height="12dp"
android:layout_alignEnd="#id/messageUserAvatar"
android:layout_alignTop="#id/messageUserAvatar"
android:layout_marginEnd="5dp" />
<LinearLayout
android:id="#id/bubble"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="30dp"
android:layout_below="#+id/displayNameTextView"
android:layout_toEndOf="#id/messageUserAvatar"
android:orientation="vertical">
<TextView
android:id="#id/messageText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="4dp"
android:layout_marginStart="8dp"/>
</LinearLayout>
<TextView
android:id="#+id/incomingTimeTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="#id/bubble"
android:layout_below="#id/bubble"
android:layout_marginEnd="4dp"
android:text="18:00"
android:layout_marginTop="4dp"
android:textColor="#color/colorMaterialGray" />
</RelativeLayout>
Outcoming layout :
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_marginTop="8dp">
<LinearLayout
android:id="#id/bubble"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_marginStart="40dp"
android:orientation="vertical">
<TextView
android:id="#id/messageText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
<TextView
android:id="#+id/outcomingTimeTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignStart="#id/bubble"
android:layout_below="#id/bubble"
android:textColor="#color/colorMaterialGray"
android:layout_marginStart="16dp"/>
</RelativeLayout>
MessageHolder of outcoming :
public class CustomOutcomingMessageViewHolder extends MessageHolders.OutcomingTextMessageViewHolder<Comment> {
private TextView mOutcomingTimeTextView;
public CustomOutcomingMessageViewHolder(View itemView) {
super(itemView);
mOutcomingTimeTextView = itemView.findViewById(R.id.outcomingTimeTextView);
}
#Override
public void onBind(Comment comment) {
super.onBind(comment);
if(comment.getmContent() != null){
if(comment.getmContent().length() > 3){
SimpleDateFormat timeOutput = new SimpleDateFormat("HH:mm", Locale.FRANCE);
String commentPostedTime = timeOutput.format(comment.getmPostedDate());
mOutcomingTimeTextView.setText(commentPostedTime);
}
}
}
}
Any ideas ?

This happened to me without using any MessageHolder, I could fix it by assigning the same width to all images:
int width = Math.round( (float) getScreenWidthHeight().x * 0.8f); // width = 80% of screen's max width
int height = Math.round((float) bitmap.getHeight() / ((float) bitmap.getWidth() / (float) width));
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap), width, height, true);
where getScreenWidthHeight() is:
private Point getScreenWidthHeight(Activity activity) {
Display display = activity.getWindowManager(). getDefaultDisplay();
Point size = new Point();
display.getSize(size);
return size;
}

Did you check the sender ids in your code to be different for sender and receiver side by the id which is gotten from getId of message model? According to the library you need to determine the senderId in the Adapter initialization:
MessagesListAdapter<Message> adapter = new MessagesListAdapter<>(senderId,
imageLoader);
messagesList.setAdapter(adapter);
Library decides whether to align left or right according to senderIds comparison.

For anyone using the default MessagesListAdapter and ViewHolders, outgoing picture message ImageViews don't have their alignment set, but their parent view width is set to match_parent, which is why the image isn't aligned correctly.
item_outcoming_image_message.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_marginTop="8dp">
<com.stfalcon.chatkit.utils.RoundedImageView
android:id="#id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:layout_marginLeft="#dimen/message_outcoming_bubble_margin_left"
android:layout_marginStart="#dimen/message_outcoming_bubble_margin_left" />
So, after looking through some of the library code, I found one solution is to simply override onBindViewHolder():
messagesAdapter = new MessagesListAdapter<Message>(senderId, imageLoader) {
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
super.onBindViewHolder(holder, position);
if (holder.getItemViewType() == -132) { // -132 is an outgoing picture message
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) holder.itemView.findViewById(com.stfalcon.chatkit.R.id.image).getLayoutParams();
params.addRule(RelativeLayout.ALIGN_PARENT_END);
}
}
};

Fixed it by setting a fixed width using ConstraintLayout
val holdersConfig = MessageHolders()
.setIncomingTextConfig(
CustomIncomingTextMessageViewHolder::class.java,
R.layout.item_custom_incoming_text_message
)
Here is my item_custom_outcoming_image_message
<?xml version="1.0" encoding="utf-8"?>
<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:id="#+id/imageMessageContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:layout_marginTop="8dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="8dp"
tools:context=".chatting.ChattingFragment">
<com.stfalcon.chatkit.utils.RoundedImageView
android:id="#id/image"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="#drawable/ic_chat_pick_image"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintWidth_percent=".8"
tools:srcCompat="#tools:sample/backgrounds/scenic" />
<View
android:id="#id/imageOverlay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="#id/image"
app:layout_constraintEnd_toEndOf="#id/image"
app:layout_constraintStart_toStartOf="#id/image"
app:layout_constraintTop_toTopOf="#id/image"
tools:visibility="gone" />
<ImageView
android:id="#+id/status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingStart="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/image"
tools:src="#drawable/ic_message_status_processing" />
<TextView
android:id="#id/messageTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="#id/status"
app:layout_constraintEnd_toStartOf="#+id/status"
app:layout_constraintTop_toTopOf="#id/status"
tools:text="12:15" />
</androidx.constraintlayout.widget.ConstraintLayout>

Animate LayoutChanges does not work properly

I want to animate text in my textswitcher. I went through all the stack questions and the documentation, but they didn't solve my problem.
Here is my XML:
<?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">
<TextView
android:id="#+id/tv__inc_pre_sing__screen_title"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#fff"
android:gravity="center"
android:text="PRACTICE"
android:textAllCaps="true"
android:textColor="#color/colorAccent"
android:textSize="16dp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.constraint.ConstraintLayout
android:id="#+id/rl__inc_pre_sing__tm_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:animateLayoutChanges="true"
android:background="#efff"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/tv__inc_pre_sing__screen_title">
<ImageView
android:id="#+id/tv__inc_pre_sing__quotation_mark"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:src="#drawable/ic_archive_black_24dp"
app:layout_constraintTop_toTopOf="parent" />
<TextSwitcher
android:id="#+id/tv__inc_pre_sing__teacher_message"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="24dp"
android:layout_marginTop="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#id/tv__inc_pre_sing__quotation_mark"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
android:src="#drawable/ic_archive_black_24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/tv__inc_pre_sing__teacher_message" />
</android.support.constraint.ConstraintLayout>
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:text="Click Me"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<View
android:layout_width="0dp"
android:layout_height="16dp"
android:background="#drawable/ic_launcher_background"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/rl__inc_pre_sing__tm_container" />
</android.support.constraint.ConstraintLayout>
Here is my code
public class Main3Activity extends AppCompatActivity {
private TextSwitcher mSwitcher;
Button btnNext;
int currentIndex=-1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
Resources resources = getApplicationContext().getResources();
final String[] textString = resources.getStringArray(R.array.teacher_messages);
btnNext = findViewById(R.id.button);
mSwitcher = findViewById(R.id.tv__inc_pre_sing__teacher_message);
mSwitcher.setFactory(new ViewSwitcher.ViewFactory() {
public View makeView() {
// TODO Auto-generated method stub
// create new textView and set the properties like clolr, size etc
TextView myText = new TextView(Main3Activity.this);
myText.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL);
myText.setTextColor(Color.BLUE);
return myText;
}
});
// Declare the in and out animations and initialize them
Animation in = AnimationUtils.loadAnimation(this,android.R.anim.slide_in_left);
Animation out = AnimationUtils.loadAnimation(this,android.R.anim.slide_out_right);
// set the animation type of textSwitcher
mSwitcher.setInAnimation(in);
mSwitcher.setOutAnimation(out);
// ClickListener for NEXT button
// When clicked on Button TextSwitcher will switch between texts
// The current Text will go OUT and next text will come in with specified animation
btnNext.setOnClickListener(new View.OnClickListener() {
//
public void onClick(View v) {
// TODO Auto-generated method stub
currentIndex++;
// If index reaches maximum reset it
if(currentIndex==textString.length)
currentIndex=0;
mSwitcher.setText(textString[currentIndex]);
((ViewGroup) findViewById(R.id.rl__inc_pre_sing__tm_container)).getLayoutTransition()
.enableTransitionType(LayoutTransition.CHANGING);
}
});
}
}
The animation on ConstraintLayout whose id is rl__inc_pre_sing__tm_container does not work properly. Suppose my TextSwitcher has text whose length is greater than 3 and then TextSwitcher shows text whose length is 1 then the ConstraintLayout does not animate, if the next text is of length 1 then the constraintlayout animates.
I am not able to figure out this weird behaviour.

Here is the issue: When the TextSwitcher transitions from X lines of text to something less than X lines then the TextSwitcher's height does not change.
The TextSwitcher inherits some behavior from ViewAnimator which considers the height of all views when determining the height of the widget. The solution is to add the following XML to the TextSwitcher definition in the layout file that will inhibit this behavior:
android:measureAllChildren="false"
Thanks to this Stack Overflow answer that states all this better than I have.

GridLayout. How set space between columns?

Android Studio 3.1, Java 1.8, Gradle 4.1
I use GridLayout.
All work fine.
But I need to set space (e.g. 10dp) between columns and space between rows.
How I can do this?
main.xml:
<GridLayout
android:id="#+id/categoriesContainer"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:verticalSpacing="10dp"
app:layout_constraintEnd_toEndOf="#+id/birthDateContainer"
app:layout_constraintStart_toStartOf="#+id/birthDateContainer"
app:layout_constraintTop_toBottomOf="#+id/birthDateContainer">
</GridLayout>
profile_category_active.xml
<?xml version="1.0" encoding="utf-8"?>
<layout 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.support.constraint.ConstraintLayout
android:id="#+id/profileCategoryContainer"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="#+id/categoryNameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginEnd="30dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="30dp"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
android:ellipsize="end"
android:maxLines="1"
android:text="TextView" />
</android.support.constraint.ConstraintLayout>
</layout>
Activity: I add row programatically:
GridLayout gridLayout = findViewById(R.id.categoriesContainer);
gridLayout.setColumnCount(columnCount);
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
for (int index = 0; index < 10; index++) {
View profileCategoryActive = inflater.inflate(R.layout.profile_category_active, null, false);
categoriesGridContainer.addView(profileCategoryActive);
ConstraintLayout profileCategoryContainer = profileCategoryActive.findViewById(R.id.profileCategoryContainer);
ViewGroup.LayoutParams profileCategoryContaineParams = profileCategoryContainer.getLayoutParams();
profileCategoryContaineParams.width = (int) AndroidUtil.dpToPx(this, categoryItemWidth);
profileCategoryContainer.setLayoutParams(profileCategoryContaineParams);
TextView categoryNameTextView = profileCategoryActive.findViewById(R.id.categoryNameTextView);
categoryNameTextView.setText("Ind " + profileCategoryContaineParams.width);
}

In xml GridLayout, add:
android:useDefaultMargins="true"
and you get a distance between columns and rows.

This is how I achieved it, hopefully this helps somebody;
<GridLayout
android:orientation="horizontal"
android:columnCount="3"
android:layout_marginEnd="-10dp"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:background="#color/colorBlack"
android:textColor="#color/colorWhite"
android:text="1"
android:layout_marginEnd="10dp"
android:layout_marginBottom="10dp"
android:layout_columnWeight="1"
android:layout_height="wrap_content"
android:padding="15dp" />
<TextView
android:background="#color/colorBlack"
android:textColor="#color/colorWhite"
android:text="2"
android:layout_marginEnd="10dp"
android:layout_marginBottom="10dp"
android:layout_columnWeight="1"
android:layout_height="wrap_content"
android:padding="15dp" />
<TextView
android:background="#color/colorBlack"
android:textColor="#color/colorWhite"
android:text="3"
android:layout_marginEnd="10dp"
android:layout_marginBottom="10dp"
android:layout_columnWeight="1"
android:layout_height="wrap_content"
android:padding="15dp" />
<TextView
android:background="#color/colorBlack"
android:textColor="#color/colorWhite"
android:text="4"
android:layout_marginEnd="10dp"
android:layout_marginBottom="10dp"
android:layout_columnWeight="1"
android:layout_height="wrap_content"
android:padding="15dp" />
</GridLayout>
Essentially what it's doing is setting a margin on each item (10dp) to space them inside the GridLayout and then it's shifting the GridLayout by using a negative margin (-10dp) to compensate for the additional width. Giving the following result;

Dynamic Views in GridLayout
I had a slightly different problem. The Views I needed to show in the GridLayout could not be determined ahead of time (i.e. can't create them in XML). I needed to create them programmatically based on info loaded from a database.
for (socialPlatform in platformsWithNoAccount) {
val socialIcon = ImageView(requireContext())
socialIcon.setImageDrawable(ImageUtils.getSocialIcon(socialPlatform, false))
binding.addSocialLayout.addView(socialIcon)
(socialIcon.layoutParams as? GridLayout.LayoutParams)?.marginEnd = 48
}
The key is that last line:
(socialIcon.layoutParams as? GridLayout.LayoutParams)?.marginEnd = 48
After the View has been added to the GridLayout, it should have a GridLayout.LayoutParams object that you can alter in code by setting marginStart, marginEnd, etc.

I found solution:
Use android.support.v7.widget.GridLayout
Here programatically set margin and full size horizontally
O activity:
View profileCategoryActive = inflater.inflate(R.layout.profile_category_active, null, false);
categoriesGridContainer.addView(profileCategoryActive);
// set ndroid:layout_columnWeight="1" programatically
GridLayout.LayoutParams params = new GridLayout.LayoutParams(GridLayout.spec(
GridLayout.UNDEFINED, GridLayout.FILL, 1f),
GridLayout.spec(GridLayout.UNDEFINED, GridLayout.FILL, 1f));
params.width = (int) AndroidUtil.dpToPx(this, categoryItemWidth);
params.bottomMargin = (int) tilePreviewLeftRightMarginDp;
params.topMargin = (int) tilePreviewLeftRightMarginDp;
params.rightMargin = (int) tilePreviewLeftRightMarginDp;
params.leftMargin = (int) tilePreviewLeftRightMarginDp;
ConstraintLayout profileCategoryContainer = profileCategoryActive.findViewById(R.id.profileCategoryContainer);
profileCategoryContainer.setLayoutParams(params);
TextView categoryNameTextView = profileCategoryActive.findViewById(R.id.categoryNameTextView);
categoryNameTextView.setText("Ind " + params.width);

2 TextViews, left with ellipsis, right with nowrap, single line

It's the first time I post on this forum, hope it's gonna be fine :)
I'm developping an Android App for public transportation in my city.
Here is what I have
[ |short destination ||next departure| ]
[ |way too long dest...||next departure| ]
Here is what I want:
[ |short destination||next departure| ]
[ |way too long dest...||next departure| ]
Here is a more complete example: s28.postimg.org/5gejnvfd9/actual2.png
Weird coloured backgrounds are just here to easily identify layouts/textviews. You can also ignore the brown line (which is ok).
Basically, I want to have the destination [red background] which have a variable length, and on its right, I want the first departure time [green background]. Everything on one line.
I need to always have the first departure information fully displayed (nowrap). The destination could be wrapped with an ellipsis (...).
[Optional question, how to replace the ellipsis '...' with '.' ?]
Here is the best working code I have so far:
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/txtTitleDestination"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="#+id/txtTitleFirstDeparture"
android:background="#FF0000"
android:ellipsize="end"
android:maxLines="1"
android:padding="0dp"
android:scrollHorizontally="true"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="#+id/txtTitleFirstDeparture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="0dp"
android:layout_marginRight="0dp"
android:layout_alignParentRight="true"
android:background="#00FF00"
android:ellipsize="none"
android:maxLines="1"
android:padding="0dp"
android:textSize="18sp"
android:textStyle="bold"
/>
</RelativeLayout>
I've tried TableLayout and LinearLayour instead of the RelativeLayout, but with no success :(
Any idea how I could do that?
Thanks in advance!
Louloox
[SOLVED]
Just have to lightly modify the valbertos answer:
titleDestination.post(new Runnable() {
#Override
public void run() {
int widthTextViewDeparture = measureTextWidthTextView(titleFirstTime, pContext);
int widthTextViewDestination = titleDestination.getWidth();
int widthTextViewParent = rl_parent.getWidth();
if(widthTextViewDestination + widthTextViewDeparture > widthTextViewParent) {
titleDestination.setWidth(widthTextViewParent - widthTextViewDeparture);
titleDestination.setEllipsize(TruncateAt.END);
titleDestination.setHorizontallyScrolling(true);
}
}
});
Setting the Ellipsis only if necessary makes the text properly truncated.
Before:
Lingolsheim Thiergaten --> Lingolsheim... [1'23"] 21h23
With the modification:
Lingolsheim Thiergaten --> Lingolsheim Thi... [1'23"] 21h23
Thanks again :)

You don't need do it programmatically, ConstraintLayout is a magic!
Just use this code
app:layout_constraintHorizontal_bias="0" align view left
app:layout_constrainedWidth="true" to wrap left text
<?xml version="1.0" encoding="utf-8"?>
<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="8dp">
<TextView
android:id="#+id/leftText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="end"
android:maxLines="1"
app:layout_constrainedWidth="true"
app:layout_constraintHorizontal_bias="0"
app:layout_constraintEnd_toStartOf="#id/rightText"
app:layout_constraintHorizontal_chainStyle="packed"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="|short destination|" />
<TextView
android:id="#+id/rightText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/leftText"
app:layout_constraintTop_toTopOf="parent"
tools:text="|next departure|" />
</androidx.constraintlayout.widget.ConstraintLayout>
Here is result

I found a way to do it using Linear Layout, the trick is not to forget width="wrap_content" for the linearLayout, hope it can help.
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ellipsize="end"
android:singleLine="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true" />

To do what you are asking for, you must adjust the width of the first view dynamically based on the text width of the second view.
//Code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test);
final TextView tv_1 = (TextView) findViewById(R.id.tv_1);
tv_1.post(new Runnable() {
#Override
public void run() {
View rl_parent = findViewById(R.id.rl_parent);
TextView tv_2 = (TextView) findViewById(R.id.tv_2);
int widthTextView2 = measureTextWidthTextView(tv_2);
if(tv_1.getWidth() + widthTextView2 > rl_parent.getWidth()) {
tv_1.setWidth(tv_1.getWidth() - widthTextView2);
}
}
});
}
private int measureTextWidthTextView(TextView textView) {
int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(getScreenWidth(), View.MeasureSpec.AT_MOST);
int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
textView.measure(widthMeasureSpec, heightMeasureSpec);
return textView.getMeasuredWidth();
}
private int getScreenWidth() {
WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
Point size = new Point();
display.getSize(size);
return size.x;
}
//Layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="300dp"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/rl_parent"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#348D63">
<TextView
android:id="#+id/tv_1"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#BD160B"
android:gravity="center_vertical"
android:maxLines="1"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:text="Elsau Elsau Elsau Elsau Elsau Elsau Elsau"
android:textStyle="bold" />
<TextView
android:id="#+id/tv_2"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_toRightOf="#+id/tv_1"
android:gravity="center_vertical"
android:minWidth="50dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:text="[11:30 14:23]"
android:textStyle="bold" />
</RelativeLayout>
<!-- Rest of the layout -->
</LinearLayout>
Use android:maxLines="1" instead of android:singleLine="true" to get rid off the ugly dots -as I did in my example.
Also, I recommend you to use include for the "time" section, instead of repeating the TextViews twice. I’ve just done it like that to keep simple the example.

Maybe you should use a LinearLayout instead of RelativeLayout and use the layout_weight attribute.
<LinearLayout android:orientation="horizontal" ...>
<TextView android:id="#+id/txtTitleDestination" android:layout_width="wrap_content" ... />
<TextView android:id="#+id/txtTitleFirstDeparture" android:layout_width="0dp" android:layout_weight="1" ... />
</LinearLayout>