View in React Native

View

View component in React Native serves as a fundamental block for building UI.

It directly corresponds to UIView when running on iOS devices and android.view when running on Android.

<View>...</View>

Nested Views

You can have any number of children nested inside View.

This is useful for structuring your UI hierarchy.

<View style={{ flex: 1 }}>
  <View style={{ backgroundColor: "#ff006e", flex: 1 }} />
  <View style={{ backgroundColor: "#fb5607", flex: 2 }} />
  <View style={{ backgroundColor: "#ffbe0b", flex: 3 }} />
</View>

Dynamic Views

For Dynamic Views (or basically any other components) you can use JavaScript's conditional statements within your JSX.

export default function Example() {
  const shouldRenderRedBox = false;

  return (
    <View>
      <View style={{ backgroundColor: "blue", width: 100, height: 100 }} />

      {shouldRenderRedBox && (
        <View style={{ backgroundColor: "red", width: 100, height: 100 }} />
      )}
    </View>
  );
}

Calculating View Dimensions and Position on the screen

View component has an onLayout property that is used to determine component's position on the screen and its dimensions.

onLayout is fired immediately after mounting with a callback event containing x, y, width, and height properties.

<View
  onLayout={({ nativeEvent: { layout } }) => {
    console.log(`Position on the screen: ${layout.x} x ${layout.y}`);
    console.log(`View dimensions: ${layout.width} x ${layout.height}`);
  }}
>
  ...
</View>

Disabling Touch Events

In certain scenarios, you may want to prevent touch events from happening on a View component. The pointerEvents property allows you to control whether a View can respond to touch events.

By setting this property to none, you can disable all touch interactions on the component.

<View pointerEvents="none">...</View>