I transfrom arraylist to list view. It works but it doesn't show the first item. Here is my code. Help me please. Even I change the arraylist to String array, it doesn't work.
ListView list = (ListView) mView.findViewById(R.id.outputList);
ArrayList<String> listItem = new ArrayList<String>();
listItem.add("one");
listItem.add("two");
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_list_item_1,listItem);
list.setAdapter(adapter);
Layout is here.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/outputList"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
Related
I want to use AutoCompleteTextView in android and read the official developer.android documentation about it.
There is a code snippet which looks like:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_dropdown_item_1line, COUNTRIES);
AutoCompleteTextView textView = (AutoCompleteTextView)
findViewById(R.id.countries_list);
textView.setAdapter(adapter);
}
private static final String[] COUNTRIES = new String[] {
"Belgium", "France", "Italy", "Germany", "Spain"
};
I do not understand what the second parameter (android.R.layout.simple_dropdown_item_1line) in the constructor of ArrayAdapter means, where does this come from?
Is it a layout which is available from android or do I have to replace this layout with a layout created on my own and how to define this layout file in that case?
Concrete my code lokks like
xml:
<AutoCompleteTextView
android:id="#+id/search"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
java:
AutoCompleteTextView search =(AutoCompleteTextView) findViewById(R.id.search);
String[] vocabs = new String[1001];
//fill the String array
ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line ,vocabs);
search.setAdapter(adapter);
They are calling the constructor of ArrayAdapter with 3 arguments (documentation): ArrayAdapter(Context context, int resource, T[] objects)
The resource R.layout.simple_dropdown_item_1line is just one of the default android framework layouts for dropdowns. See here a list of other default layouts.
EDIT to answer your 2nd question:
You can either use the default android layout (the example you provided should work) or a custom one defined by you. If it's this last case then just create a xml layout for this layout:
layouts/dropdown_custom_view.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical">
<TextView
android:id="#+id/vocab_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:text="vocab"/>
</LinearLayout>
Then you can use the ArrayAdapter constructor ArrayAdapter(Context context, int resource, int textViewResourceId, T[] objects) pointing to your custom layout and to the TextView you want to be populated with vocabs:
ArrayAdapter<String> adapter = new ArrayAdapter<>(this, R.layout.dropdown_custom_view, R.id.vocab_text ,vocabs);
search.setAdapter(adapter);
Also check that you're populating the vocabs array well.
This layout which is available within Android System that's the reason you use android.R.It is used to show an item from the array adapter.It is basically a textview with some styling
You can use the custom layout for AutoCompleteTextView like
ArrayAdapter<String> adapter =
new ArrayAdapter<String>(this, R.layout.custom_layout, R.id.text_title, COUNTRIES);
AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.countries_list);
textView.setAdapter(adapter);
custom_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#e4e4e4"
>
<TextView
android:id="#+id/text_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
tools:text="AA"
android:padding="15dp"
/>
</LinearLayout>
I'm having a problem with a custom ListView I am using in the ListActivity of my application. My problem is that all TextView items added to the ListView through an ArrayAdapter show up with a gray bar above them. I would include an image of the displayed ListView, but am unable since I do not have a reputation of 10 required by the stackoverflow site.
The layout file (index.xml) used to produce the ListView is defined as follows:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:orientation="vertical" >
<ListView
android:divider="#color/mg_red"
android:dividerHeight="1sp"
android:id="#android:id/list"
android:layout_height="fill_parent"
android:layout_width="fill_parent" />
<TextView
android:title="text_view"
android:background="#drawable/listitemback"
android:cacheColorHint="#drawable/listitemback"
android:id="#+id/listItem"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10sp"
android:textColor="#color/listitemtext"
android:textSize="16sp" />
</LinearLayout>
The ListActivity code used to display the list is as follows:
public class IndexListActivity extends ListActivity
{
private ListView m_listView = null;
#Override
public void onCreate(Bundle savedInstanceState)
{
try
{
if (MGApplication.DEBUG_BUILD)
Log.i("TMG", "IndexListActivity.onCreate");
super.onCreate(savedInstanceState);
// Get our global data object.
MGApplication mgApp = (MGApplication) getApplication();
// Set view layout
SetContentView(R.layout.index);
// Get references to our ListView and AdView objects
m_listView = (ListView) findViewById(android.R.id.list);
// Create a new ArrayAdapter object that will be used to initialize
// the underlying ListView object.
ArrayAdapter<String> aa = new ArrayAdapter<String>(this, R.layout.index,
R.id.listItem,
mgApp.m_strAZRhymeNames);
// Assign array adapter
m_listView.setAdapter(aa);
}
catch (Exception e)
{
}
return;
}
}
Any help is greatly appreciated as I am at my wits end with this issue. I think I've tried every suggestion I could find on the web and I am unable to remove the gray bar.
Thank You,
Bob
you have to set this property in test.xml file with.
<ListView
android:id="#+id/listview_middle"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_margin="1dip"
android:layout_weight="1"
android:background="#ffffff"
android:cacheColorHint="#android:color/transparent"
android:choiceMode="singleChoice"
android:scrollingCache="false" />
and set some property in listview object.
lv.setVerticalFadingEdgeEnabled(false);
In my side that's work perfect.
I'm storing miliseconds from alarms to database and database has them all stored correctly since I test it displaying them in a single TextView and it displays them all. But my ListView only displays miliseconds value which has 8 numbers, when there are 9 number or more it doesn't display them. Here is my 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="match_parent"
android:layout_height="250dp" >
</ListView>
</LinearLayout>
My xml I use for rows :
<?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" >
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/text1"
android:layout_width="match_parent"
android:gravity="center"
android:layout_height="45dp" />
</LinearLayout>
Method that I use for populating the ListView :
private void fillData() {
// Get all of the notes from the database and create the item list
Cursor c = DatabaseManager.getAllData();
startManagingCursor(c);
String[] from = new String[] { DatabaseManager.TABLE_COLUMN_TWO };
int[] to = new int[] { R.id.text1 };
// Now create an array adapter and set it to display using our row
SimpleCursorAdapter notes =
new SimpleCursorAdapter(this, R.layout.notes_row, c, from, to);
setListAdapter(notes);
}
Please replace the Listview with following code. Its working good.Don't fix the height of the Listview in android:layout_heightPlease replace your layout xml code with the following xml.
<?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" > <ListViewandroid:id="#android:id/list"android:layout_width="match_parent"android:layout_height="match_parent" ></ListView></LinearLayout>
I'm trying to use an ArrayAdapter in a ListActivity:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.id.text1, new String[] { "a", "b"});
setListAdapter(adapter);
This is the layout:
<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" >
<TextView
android:id="#id/android:text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10" />
<ListView
android:id="#id/android:list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="false"
android:layout_below="#id/android:text1" >
</ListView>
</RelativeLayout>
None of the solutions I found on StackOverflow seems to work. I'm using API 10. Can you help please?
You are using the wrong type of resource, you need to reference R.layout not R.id. Try android.R.layout.simple_list_item_1:
new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, new String[] { "a", "b"});
Define a layout for the rows of your ListView, and call it, for example, simple_list_item_1 (create the file simple_list_item_1.xml in the folder res/layout). Put your TextView into this layout:
<?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="fill_parent" >
<TextView
android:id="#id/android:text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10" />
</RelativeLayout>
and then create your ArrayAdapter like this:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.simple_list_item_1, R.id.text1, new String[] { "a", "b"});
Here you'll find a detailed explanation about Lists and Adapters.
I have made a list view containing two childs. Now i am trying to append a series of children to each of these two childs.
I am using following procedure.
super.onCreate(savedInstanceState);
setContentView(R.layout.report_main_layout);
CharSequence[] dummyChar = {"a","b"};
listView = (ListView) findViewById(R.id.UIMainAccountListView);
adapter = new CustomArrayAdapterOfMainList(this, dummyChar);
listView.setAdapter(adapter);
In the custom adapter i am using following code.
if (position == 0)
{
viewHolder.listView = (ListView) view.findViewById(R.id.UIReportTrialBalanceListView);
adapter = new CustomArrayAdapterForChildList(context, debitAccounts,sumDebit);
viewHolder.listView.setAdapter(adapter);
}
else
{
viewHolder.listView = (ListView) view.findViewById(R.id.UIReportTrialBalanceListView);
adapter = new CustomArrayAdapterForChildList(context, creditAccounts, sumCredit);
viewHolder.listView.setAdapter(adapter);
}
All i am getting is like this, I want to extend it so that all of the accounts show, List view should wrap content but it is not wrapping content
This will stack two listviews and force them to take up half of their parent each.
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="2">
<ListView
android:id="#+id/list1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"/>
<ListView
android:id="#+id/list2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"/>
</LinearLayout>
You can remove the cache color by setting android:cacheColorHint="#android:color/transparent" for each listview
<?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="fill_parent"
android:orientation="vertical"
android:paddingBottom="20sp" >
<ListView
android:id="#+id/child1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ListView
android:id="#+id/child2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/child1" />
</RelativeLayout>
This layout for first child1 listview above the second child2 listview
Thanks