I have a Listview in which I need to obtain the total height sum of all the items so that the ListView height equals that height of all the items. I tried to implement the following class to accomplish that.
public class UIUtils {
/**
* Sets ListView height dynamically based on the height of the items.
*
* @param listView to be resized
* @return true if the listView is successfully resized, false otherwise
*/
public static boolean setListViewHeightBasedOnItems(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if(listAdapter != null)
{
int numberOfItems = listAdapter.getCount();
WindowManager wm = (WindowManager) listView.getContext().getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
int deviceWidth;
if(android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
Point size = new Point();
display.getSize(size);
deviceWidth = size.x;
} else {
deviceWidth = display.getWidth();
}
int desiredWidth = View.MeasureSpec.makeMeasureSpec(deviceWidth, View.MeasureSpec.AT_MOST);
int desiredHeight = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
// Get total height of all items.
int totalItemsHeight = 0;
for(int itemPos = 0; itemPos < numberOfItems; itemPos++)
{
View item = listAdapter.getView(itemPos, null, listView);
item.measure(desiredWidth, desiredHeight);
totalItemsHeight += item.getMeasuredHeight();
}
// Get total height of all item dividers.
int totalDividersHeight = listView.getDividerHeight() * (numberOfItems - 1);
int totalPadding = listView.getPaddingBottom() + listView.getPaddingTop();
// Set list height.
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalItemsHeight + totalDividersHeight + totalPadding;
listView.setLayoutParams(params);
listView.requestLayout();
return true;
}
else
{
return false;
}
}
}
Here is how I finally make use of the class described before:
ListView list = (ListView) findViewById(R.id.bills);
BillsListViewAdapter listViewAdapter = new BillsListViewAdapter(context, R.layout.item_bill, bills);
list.setAdapter(listViewAdapter);
UIUtils.setListViewHeightBasedOnItems(list);
The mentioned class will only return a static value for all the items even though on some instances the height may vary because the text of a TextView inside the item might have two or more lines.
item_bil.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?android:attr/activatedBackgroundIndicator"
android:padding="10dp"
android:weightSum="1">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.9"
android:orientation="vertical">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginBottom="5dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/number"
android:layout_marginEnd="2dp"
android:textSize="12sp"/>
<TextView
android:id="@+id/number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="{{number}}"
android:textSize="12sp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hour"
android:layout_marginStart="@dimen/activity_horizontal_margin"
android:layout_marginEnd="2dp"
android:textSize="12sp"/>
<TextView
android:id="@+id/hour"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="{{hour}}"
android:textSize="12sp"/>
</LinearLayout>
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="{{name}}"
android:textSize="16sp"
android:textColor="@color/colorPrimary"
android:layout_marginBottom="5dp"
android:gravity="center_vertical"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginBottom="5dp">
<TextView
android:id="@+id/address"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="{{address}}"
android:textStyle="bold"
android:textSize="12sp"
android:gravity="center_vertical"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="0.1">
<TextView
android:id="@+id/amount"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="{{amount}}"
android:textSize="18sp"
android:gravity="right"/>
</LinearLayout>
</LinearLayout>
ListView:
<ListView
android:id="@+id/charges"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none"/>
