How to center a ImageView vertically in its parent?
My layout design is a TextView with long text and a ImageView to the right of the TextView. I want to center the ImageView in its parent vertically, so I used android:layout_centerVertical="true", but it turned out that the ImageView was aligned to the bottom of its parent. If I don't use layout_centerVertical property, the ImageView will be aligned to the top of its parent. How can I solve this problem? Thanks.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:background="#000000">
<ImageView android:id="@+id/t3" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:src="@drawable/arrow_right"
android:layout_alignParentRight="true" android:background="#ff0000"
android:layout_centerVertical="true" android:scaleType="centerInside" />
<TextView android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="This a very very very very very very very very very very very very very very very very long sentence"
android:textColor="#231ACC" android:layout_toLeftOf="@id/t3" />
</RelativeLayout>
Asked by: Agata321 | Posted: 25-01-2022
Answer 1
Try android:layout_gravity="center_vertical"
Answer 2
Add this xml attribute to the child you wish to center within it's parent:
android:layout_centerInParent="true"
This will center it vertically/horizontally.
Answered by: David985 | Posted: 26-02-2022Answer 3
change android:layout_height="wrap_content" to android:layout_height="fill_parent" of RelativeLayout and add android:layout_centerVertical="true" to TextView, it will work like charm.
Answer 4
You could use a LinearLayout with layout_width and layout_height set to fill_parent and gravity set to vertical_center.
Something like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical|center_horizontal"
android:orientation="horizontal">
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/input_field"
android:gravity="left"
android:layout_weight="1"
android:text="Left Aligned"/>
<EditText
android:id="@+id/input_field"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:layout_weight="1"
android:text="Right Aligned"/>
</LinearLayout>
</LinearLayout>
Answer 5
This will put your image to the vertical center of it's parent:
android:layout_gravity="center_vertical"
Demo:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="64dp"
android:orientation="horizontal">
<ImageView
android:layout_width="48dip"
android:layout_height="48dip"
android:src="@drawable/ic_launcher"
android:contentDescription="Application icon"
android:layout_gravity="center_vertical" />
</LinearLayout>
Answer 6
Simply add this:
Answered by: Thomas853 | Posted: 26-02-2022android:layout_gravity="center_vertical|center_horizontal"
Answer 7
I found this question while building in Android Studio 4.2.1 and the solution after some tinkering was:
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
this way, constraining to both sides automatically centers the widget and satisfies the need for constraints. The same is true when centering vertically, by using:
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
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