Как сверстать полупрозрачный блок на элементе при загрузке?

<View
				style={
					isFetch
						? {
								position: "absolute",
								width: widthScreen,
								height: heightScreen,
								backgroundColor: "rgba(0, 0, 0, 0.3)",
								zIndex: 666666,
						  }
						: null
				}
			>
				{isFetch !== undefined && isFetch === true ? (
					<View
						style={{
							width: widthScreen,
							height: heightScreen,
							backgroundColor: "rgba(0, 0, 0, 0.3)",
							justifyContent: "center",
							alignItems: "center",
						}}
					>
                        <ActivityIndicator size="large" color="#000000" />
					</View>
				) : null}
			</View>
		)