GridView error in horizontal spacing

Question

I have placed a GridView in my XML layout file.

It is displayed as I wanted in the English (LTR) on both API 17-21 But when I witch the language to Arabic (RTL) the horizontalSpacing is ignored on API 17-19 but on API 21 it is displayed as I wanted.

The same behavior occurred on emulators and real Android devices.

XML code:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:id="@+id/services_home_main_layout"
                android:orientation="vertical"
                android:layout_width="match_parent"
                android:layout_height="match_parent">

    <LinearLayout
        android:id="@+id/services_home_contents"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentTop="true"
        android:layout_above="@+id/services_home_bottom_layout">

        <GridView
            android:id="@+id/services_home_services_gridview"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:numColumns="3"
            android:horizontalSpacing="4dp"
            android:verticalSpacing="4dp"
            android:layout_margin="4dp"
            android:gravity="center"
            android:choiceMode="singleChoice" />

    </LinearLayout>

    <LinearLayout
        android:id="@id/services_home_bottom_layout"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true" />

</RelativeLayout>

XML code for items:

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/services_drawer_item_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:gravity="center"
    android:padding="4dp"
    android:background="@color/Gray_CC"
    android:drawableTop="@drawable/tall4"
    android:text="@string/app_name" />

Here is my screenshots of Arabic (RTL) UI:

Notice the horizontal spacing in the first screenshot

Answer 1

try this, i don't know why but worked for me

if(activity.getWindow().getDecorView().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL)
    gridView.setHorizontalSpacing((int) -padding);
else
    gridView.setHorizontalSpacing((int) padding);

Answer 2

I had the same problem and i tried to solve it but it just doesn't work as expected. If you have RTL set in your manifest then set the layout direction of the GridView to LRT and rotateY by 180.

Here is a detailed explanation: android grid view place items from right to left