Change from ScrollView to FlatList in react native

I’m going to make a todolist app.
On the main page, to show the task of todolist,
I used scrollview, but I want to change it to FlatList.

<ScrollView width = {width-20}>
            {Object.values(tasks).map(item => (
               <Task key = {item.id} item={item} deleteTask={_deleteTask} 
               toggleTask={_toggleTask} updateTask={_updateTask}/>
           ))} 
         </ScrollView>