is it possible to create listview inside dialog?

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天涯浪人
天涯浪人 2020-11-30 23:17

i have created a custom dialog class

public class NewPost extends Dialog
{
// functionality

}

now my requirement is to create listview ins

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6条回答
  • 2020-11-30 23:28

    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.

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  • 2020-11-30 23:31

    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();
    
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  • 2020-11-30 23:34

    You can use any layout for alert dialogs. If you want a listview I would do it like here

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  • 2020-11-30 23:42

    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>
    
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  • 2020-11-30 23:43

    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();
            }
        });
    
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  • 2020-11-30 23:47

    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: enter image description here

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