CODEWITHSUNDEEP
androidlistviewandroid-listview
Asaf
Asaf

Reputation: 2035

Centering ListView's empty view in parent

I have a ListView with an empty view set as a view I create programmatically. I'd like to have it centered both horizontally and vertically. I found this code while searching how to do that on google.: 

TextView myTv = new TextView(getActivity());
myTv.setText("No results");
RelativeLayout.LayoutParams param = new RelativeLayout.LayoutParams(
        LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
param.addRule(RelativeLayout.CENTER_IN_PARENT, 0);
myTv.setLayoutParams(param);
myTv.setVisibility(View.GONE);
((RelativeLayout) mScheduleListView.getParent()).addView(myTv, 0);

mScheduleListView.setEmptyView(myTv);

The XML layout for the fragment holding the ListView above looks like this: 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ScheduleFragment" >

    <ListView android:id="@+id/mScheduleListView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:padding="10dp"
        android:divider="@null"
        android:dividerHeight="10.0sp" />

</RelativeLayout>

The layout shows, but not centered. I have no idea why it doesn't work. I tried messing with the LayoutParams and change them to MATCH_PARENT but apparently that wasn't the problem.
If so what could be the problem and how to solve it?

Upvotes: 0

Views: 460

Answers (3)

Muhammad Ahmad
Muhammad Ahmad

Reputation: 541

Set Textview Gravity in Center

Help Code:

myTv.setGravity(Gravity.CENTER);

Upvotes: 2

Asaf
Asaf

Reputation: 2035

Solved!
Apparently param.addRule(RelativeLayout.CENTER_IN_PARENT, -1) works.
Thank to the documentation I figured out that the value for true is -1.
All solutions I read about centering a view suggested true was actually 0 (for the addRule method).

Upvotes: 0

bGorle
bGorle

Reputation: 1996

 android:layout_centerHorizontal="true"
 android:layout_centerVertical="true"

write this code in your layout..It may works..

Upvotes: 1

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