<Modal transparent={true} visible={alert} animationType='slide' onRequestClose={() => setalert(false)}>
<TouchableOpacity activeOpacity={1} style={Styles.center} onPressOut={() => setalert(false)}>
<TouchableWithoutFeedback>
{/* Somethings */}
</TouchableWithoutFeedback>
</TouchableOpacity>
</Modal >
{/*TouchableOpacity close the modal when click and the TouchableWithoutFeedback block the touch inside the rectangle*/}
{/*Code take from: https://stackoverflow.com/questions/40483034/close-react-native-modal-by-clicking-on-overlay*/}