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The question is published on by Tutorial Guruji team.
this is my xml, and this is the result, but would like the 3 buttons above (together) occupy the same size of the largest button, something like that image, where should I change my layout?
This is what I have:
And this is what I want:
My 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="@android:color/transparent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:background="#FFA500"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp"
android:background="#FFA500"
android:orientation="vertical">
<TextView
android:id="@+id/textoPoup1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="1. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat."
android:textColor="@android:color/white"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/nota0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0"/>
<Button
android:id="@+id/nota40"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="50"/>
<Button
android:id="@+id/nota80"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="90"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/nota120"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="110"/>
<Button
android:id="@+id/nota160"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="170"/>
<Button
android:id="@+id/nota200"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="300"/>
</LinearLayout>
<Button
android:id="@+id/proxima1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Next"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
Answer
This can be done easily using layout_weight for each of the buttons like this:
<Button
android:id="@+id/nota0"
android:layout_width="0"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="0"/>
This way, each button will take exactly 1/3 of the width of it’s parent, which takes up the whole screen width. You can still play with the margins and the padding to make the spacing between the buttons as you wish.
Edit
You can do the same thing with ConstraintLayout much more easily without nesting, using chains and applying horizontal or vertical weights like app:layout_constraintHorizontal_weight="1"
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