如何在Android（RelativeLayout）中水平居中？

Question

I have the following code:

<TextView
    android:id="@+id/exercise_name_label"
    android:layout_width="match_parent"
    android:layout_height="32dp"
    android:text="Curls"
    android:gravity="bottom"
    android:layout_centerHorizontal="true"
    />

And I want the text to be aligned at the bottom of the 32dp and center horizontally..currently it's not centering horizontally:

Answer 1

OPTION 1: You should adjust gravity to center_horizontal|bottom =)

<TextView
    android:id="@+id/exercise_name_label"
    android:layout_width="match_parent"
    android:layout_height="32dp"
    android:text="Curls"
    android:gravity="center_horizontal|bottom" />

OPTION 2: You should adjust width to wrap_content and center_horizontally in parent =)

<TextView
    android:id="@+id/exercise_name_label"
    android:layout_width="wrap_content"
    android:layout_height="32dp"
    android:text="Curls"
    android:gravity="bottom"
    android:layout_centerHorizontal="true" />

Answer 2

android:layout_centerInParent="true" is what you want. But I must say that you should not use Relative Layout. Linear Layout is more steady in my opinion.

If you want to change it to Linear Layout you can use android:layout_gravity="center" .

Answer 3

Set these attribute to your TextView:

<!-- It will make your layout center horizontal relative to parent -->
android:layout_centerHorizontal="true"

<!-- It will draw your text from center of the area assigned to textview-->
android:gravity="center"