I'm setting a TextView
with the id @android:id/empty
to display a message when there are no items in the ListView
. However, this TextView
gets displayed even if there are items in the ListView
, right before the items show up.
How can I make it such that it only gets displayed when there are no elements in the ListView
?
<?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:orientation="vertical" >
<ListView
android:id="@android:id/list"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:dividerHeight="1dp" >
</ListView>
<TextView
android:id="@android:id/empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/empty_list" />
</LinearLayout>
PS: I'm using a Loader
and a SimpleCursorAdapter
with a ListFragment
.
I'm guessing you are using a regular Fragment
or Activity
with a ListView
inside of it. If you are, you must add the empty layout to the ListView
manually.
E.g.
ListView lv = (ListView)findViewById(android.R.id.list);
TextView emptyText = (TextView)findViewById(android.R.id.empty);
lv.setEmptyView(emptyText);
Then your ListView
will automatically use this view when its adapter is empty
If you are using a ListActivity
you do not need to call setEmptyView()
on the ListView
since the ListActivity
automatically manages that for you.
Set a TextView
and assign to it whatever you want to display when the ListView
is empty:
ProjectListAdapter projectListAdapter = new ProjectListAdapter();
TextView empty=(TextView)findViewById(R.id.empty);
projectsListView.setEmptyView(empty);
And in my xml file we write the below code
<TextView
android:id="@+id/empty"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:text="Your text here"
android:textColor="#FFFFFF" />
I had this problem. You have to set the emptyView explicitly in your code.
Change your TextView
:
<TextView
android:id="@+id/emptyResults"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/empty_list" />
Then in the onCreate()
:
listViewResults = (ListView) findViewById(R.id.list);
listViewResults.setEmptyView((LinearLayout) findViewById(R.id.emptyResults));
This code above assumes your ListView
is in a LinearLayout
.
I used ListFragment
and had the same issue. I tried all variants from this answers, but the problem wasn't solved.
So I found my variant, to override setEmptyText()
:
public class NewsFragment extends ListFragment{
private TextView emptyText;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//...
emptyText = (TextView)view.findViewById(android.R.id.empty);
//...
}
@Override
public void setEmptyText(CharSequence text) {
emptyText.setText(text);
}
}
Hope it will be helpful for somebody.
I know this is kind of late, but for it to work from XML, you need to put a weight on your ListView
and have your TextView
match_parent
<?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:orientation="vertical" >
<ListView
android:id="@android:id/list"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="1"
android:dividerHeight="1dp" >
</ListView>
<TextView
android:id="@android:id/empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/empty_list" />
</LinearLayout>
There's a good example of how to do it which works awesome:
When you want to show a message to the user when the
ListView
is empty, you have to keep in mind the following 3 steps:
- In the xml where the
ListView
is declared, create aTextView
(the TextView can be inside aLinearLayout
if you want) right below theListView
- Set the
TextView
’s id as “emptyElement”- And inside the activity, set the
setEmptyView()
property to theListView
1- Create an xml which will hold the
ListView
and name it “my_activity” and an activity called “MyActivity”.
- Now, in the just created xml “my_activity”, you will have to set the
ListView
. And right below theListView
, you will have to add aTextView
. This will be used to display the empty message.Important: The TextView must have as id the following name: “emptyElement”. This name is mandatory. The message won’t be displayed if you use another name.
This is how “my_activity” xml should look like:
<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" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MyActivity"> <ListView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/listView"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/emptyElement" android:text="The list is empty" android:textStyle="bold" android:textSize="15sp" android:visibility="gone" android:layout_centerInParent="true" android:textColor="@android:color/darker_gray"/> </RelativeLayout>
Create an xml for displaying items (when the list is not empty), and name it “list_item”.
<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/list_item_text_view" android:textSize="20sp" android:padding="10dp" android:layout_marginLeft="5dp"/>
Create a new Java class for the custom adapter which will be used by the ListView and name “MyCustomAdapter”. The code for the adapter is written below:
import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; import java.util.ArrayList; public class MyCustomAdapter extends BaseAdapter { private ArrayList<String> mListItems; private LayoutInflater mLayoutInflater; public MyCustomAdapter(Context context, ArrayList<String> arrayList){ mListItems = arrayList; //get the layout inflater mLayoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public int getCount() { //getCount() represents how many items are in the list return mListItems.size(); } @Override //get the data of an item from a specific position //i represents the position of the item in the list public Object getItem(int i) { return null; } @Override //get the position id of the item from the list public long getItemId(int i) { return 0; } @Override public View getView(int position, View view, ViewGroup viewGroup) { // create a ViewHolder reference ViewHolder holder; //check to see if the reused view is null or not, if is not null then reuse it if (view == null) { holder = new ViewHolder(); view = mLayoutInflater.inflate(R.layout.list_item, null); holder.itemName = (TextView) view.findViewById(R.id.list_item_text_view); // the setTag is used to store the data within this view view.setTag(holder); } else { // the getTag returns the viewHolder object set as a tag to the view holder = (ViewHolder)view.getTag(); } //get the string item from the position "position" from array list to put it on the TextView String stringItem = mListItems.get(position); if (stringItem != null) { if (holder.itemName != null) { //set the item name on the TextView holder.itemName.setText(stringItem); } } //this method must return the view corresponding to the data at the specified position. return view; } /** * Static class used to avoid the calling of "findViewById" every time the getView() method is called, * because this can impact to your application performance when your list is too big. The class is static so it * cache all the things inside once it's created. */ private static class ViewHolder { protected TextView itemName; } }
Now go to
MyActivity
class and add the code below:import android.app.Activity; import android.os.Bundle; import android.widget.ListView; import java.util.ArrayList; import java.util.List; public class MyActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.my_activity); ListView listView = (ListView) findViewById(R.id.listView); // Create an empty array list of strings List<String> items = new ArrayList<String>(); // Set the adapter MyCustomAdapter adapter = new MyCustomAdapter(items); listView.setAdapter(adapter); // Set the emptyView to the ListView listView.setEmptyView(findViewById(R.id.emptyElement)); } }