i have created a custom dialog class
public class NewPost extends Dialog
{
// functionality
}
now my requirement is to create listview inside it. i know we can create textboxes,buttons,dropdown list inside it.
but in order to create list view we should inherit our class from listActivity class
what you suggest is it possible or not if yes then how to achieve this using any interface or what?
this implementation doesn't require you to make any xml layouts. it was written as a case statement in "onCreateDialog" override, but you can adapt if for your purposes very easily:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select Color Mode");
ListView modeList = new ListView(this);
String[] stringArray = new String[] { "Bright Mode", "Normal Mode" };
ArrayAdapter<String> modeAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, android.R.id.text1, stringArray);
modeList.setAdapter(modeAdapter);
builder.setView(modeList);
final Dialog dialog = builder.create();
dialog.show();
because you are making a dialog with only a ListView, you set the onItemClickListener of the ListView, as there isn't one for the basic dialog class.
modeList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
switch(i) {
case 0:
//do something for first selection
break;
case 1:
//do something for second selection
break;
}
dialog.dismiss();
}
});
Yes.
You can always use a ListView inside a Dialog. And you definitely don't necessarily need ListActivity to create ListView.
Code may be something like this:
Dialog dlg = new Dialog(context);
LayoutInflater li = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = li.inflate(R.layout.my_layout, null, false);
dlg.setContentView(v);
dlg.show();
my_layout.xml:
<ScrollView xmlns:android="blah"
android:id="xid"
android:layout_height="h"
android:layout_width="w">
<ListView blah blah blah attributes
/>
</ScrollView>
You don't really have to extend listActivity in order to use listviews.
Extending listActivity will give you some functionality for free, such as getListView() (if I recall the method name correctly), but that can just as well be done manually with findViewById() just as any other view.
The simplest possible way:
ListView listView = new ListView(this);
listView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, new String[] {"item 1", "item 2", "item 3"}));
Dialog dialog = new Dialog(this);
dialog.setContentView(listView);
dialog.show();
You can create a custom dialog with this layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical|center_horizontal"
android:background="@drawable/dialogs">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="20dip"
android:paddingRight="20dip"
android:paddingTop="10dip">
<ImageView
android:id="@+id/dialog_title_image"
android:layout_alignParentLeft="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/info"/>
<TextView
android:id="@+id/dialog_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dip"
android:layout_marginTop="20dp"
android:layout_centerInParent="true"
android:text="Title"
android:layout_toRightOf="@id/dialog_title_image"
android:textColor="@android:color/black"
android:textSize="20sp"/>
<!-- Lista -->
</RelativeLayout>
<TextView
android:layout_width="fill_parent"
android:layout_height="3dip"
android:background="#1e90ff"/>
<ListView
android:id="@+id/component_list"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<!-- Fine lista -->
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingTop="10dip"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:gravity="bottom|center_horizontal"
android:paddingBottom="20dip">
<Button
android:id="@+id/positive_button"
android:layout_alignParentLeft="true"
android:layout_width="120dip"
android:layout_height="wrap_content"
android:background="#1e90ff"
android:textColor="@android:color/white"
android:text="@string/close"/>
</RelativeLayout>
</LinearLayout>
create a custom layout also for each item if you want:
<?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:paddingTop="10dp"
android:paddingBottom="10dp"
android:paddingLeft="10dp"
android:orientation="vertical" >
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Large Text"
android:textStyle="bold"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/subtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
and then use an arraylist to populate the list and set the view:
//creation and population of the list
List<Component> my_list = new ArrayList<Component>();
createComponents();
//adapter
array_adapter = new ComponentAdapter(context, R.layout.component,my_list);
//button to show the dialog
Button button = (Button)findViewById(R.id.button1);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
list_dialog = new Dialog(context);
list_dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
list_dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
list_dialog.setContentView(R.layout.list_dialog);
ListView list = (ListView)list_dialog.findViewById(R.id.component_list);
list.setAdapter(array_adapter);
Button positiveButton = (Button) list_dialog.findViewById(R.id.positive_button);
positiveButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
list_dialog.dismiss();
}
});
list_dialog.show();
}
});
}
References: http://pillsfromtheweb.blogspot.it/2014/10/android-listview-inside-alertdialog.html#links
Result:
You can use any layout for alert dialogs. If you want a listview I would do it like here
