is it possible, in a React Native Function, to render the "return" at changes? What I try:
I have a Function - this Function gets an specific array out of another Function - on Button Press I generate a new Index - now what I want is to re-render the View to display the array element with the new Index:
const generateNewIndex = function (item) {
return Math.floor(Math.random() * item.length);
};
const PositionItem = ({ arr, position, navigation }) => {
let { name, beschreibung, arten, rooms, isStarred } = position;
let testArray = arr;
let i = 0;
return (
<View style={styles.posContainer}>
<View style={styles.titles}>
<Text style={styles.title}>{name}</Text>
<Text style={styles.subtitle}>{beschreibung}</Text>
<Text style={styles.title}>{testArray[i].name}</Text>
</View>
<View style={styles.buttonsContainer}>
<StyledButton
type="primary"
content={"Next Random Position"}
onPress={() => {
console.warn("Pressed");
i = generateNewIndex(testArray);
}}
/>
</View>
</View>
);
};
export default PositionItem;
Thanks in advance!
I have found a way which is Working. If anyone wonders in the Future what I did:
add a Use State component:
const [count, setCount] = useState(0);
onPress on Button increase the Count:
onPress={() => {
i = generateNewIndex(array);
setCount((prevCount) => prevCount + 1);
}}
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