Download any component you want to use and put in seperate folder(recommended) or root and the import is your app.js file using
import Card from './Card'
<Card>
<Text />
<Image />
//any arbitrary no. of children
</Card>
//better if you use above mentioned card as children of CardSection
<CardSection>
<Card />
<Card />
//any arbitrary no. of Cards
</CardSection>
<Button
onPressed={} /* function you want to preform */
text="" /*button text */
/>
<Header
headerText="" /*text of header*/
/>
<Input
label="" /*label of input box*/
secureTextEntry /*add this property if its a password type*/
placeholder="" /*placeholder text inside input box*/
value="" /*initial value inside input box*/
onChangeText="" /*function to perform when text changes*/
/>
//last two properties are mainly used when you want to change value of state of a class-based component