Question

i am working on an Android app that needs showing a list[table], inside the layout[view]

I come from iPhone dev objC land, and i have an app that shows a table[list] inside the view[layout]

So how to show a list inside my layout, and place it to specified location [center],

ps. I havent found a list in the graphical layout editor of the xml, where is the list[table]?
2. I have done some tests with list views, but is a view, that replace the xml view, i want it inside my xml,,

thanks a lot!

Answer 1

Yes, of course, you can do that

1) you need to have listholder.xml here, you can scratch anything in you layout view, either imageview, textview..etc. just don’t forget to add ListView inside it. for example:

<LinearLayout 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/head_logo_bg">
</LinearLayout>
<LinearLayout 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/background_label">
    <TextView
        android:id="@+id/city_txt" 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:layout_gravity="center"
        android:text="Sydney"
        android:textStyle="bold"
        android:textSize="17sp"/>
</LinearLayout>
<LinearLayout 
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="40sp">

    <ListView 
    android:id="@android:id/list"
    android:layout_height="wrap_content"
    android:layout_width="fill_parent"
    android:layout_centerVertical="true"
    android:scrollingCache="false"/>
</LinearLayout>

2) For custom your own list item, you have to create listitem.xml i.e.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/listitemone"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:padding="10sp">

    <LinearLayout 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:orientation="vertical">
            <ImageView android:id="@+id/user_image"
                android:layout_width="80px" android:layout_height="80px"
                android:layout_alignParentLeft="true"
                android:layout_marginRight="5px"
                android:src="@drawable/icon"
                />
    </LinearLayout>
    <RelativeLayout 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="5sp"
        android:orientation="vertical">
            <TextView
                android:id="@+id/date_label"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/date"
                android:textStyle="bold"
            android:textSize="16sp" />
            <TextView
                android:id="@+id/date_value"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true"
                android:layout_alignBaseline="@id/date_label"
                android:layout_marginRight="20sp"
                android:textColor="#FFF"
                android:text="MM/dd/YYYY"
                android:textStyle="bold"
            android:textSize="16sp" />
      </RelativeLayout>
</LinerLayout>

3) create customAdapter in your activity, it would look like this;

public class MyListActivity extends ListActivity {

private ArrayList<Yourdata> yourdata = new ArrayList<Youdata>();
        @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.listholder);    
               // yourdata might be array, arraylist etc. 

               MyCustomAdapter listadapter = new MyCustomAdapter(this, R.layout.listitem, yourdata);

          setListAdapter(listadapter);
}

private class MyCustomAdapter extends ArrayAdapter<Yourdata>{
                //this case, i use Yourdata as type
        private ArrayList<Yourdata> items;

        public PreviousAdapter(Context context, int textViewResourceId,
                ArrayList<Yourdata> items) {
            super(context, textViewResourceId, items);
            this.items = items;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View v = convertView;
            if(v == null) {
                LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                v = vi.inflate(R.layout.listitem, null);
            }
            Yourdata yt = items.get(position);
            if(yt != null){
             // Don't forget to use v.findView...., otherwise, it might force close when run app.
                TextView dateStr = (TextView)v.findViewById(R.id.date_value);

                    dateStr.setText(yt.getDate());
            }   
            return v;
        }



      }


}

P.S. the above code might not exactly right… just give you an idea 🙂
Here is a source about custom list (you might have seen it) hope it useful

http://www.vogella.de/articles/AndroidListView/article.html