I've been using expo to develop some cool programs and I'm trying to build a clone of Twitter. I got a little problem while building the loading animation of twitter app. I'm using IonIcons "twitter-logo" to build this and the problem is that the Icon doesn't stay centered like in the original app, it gets animated weirdly.
To test it, just paste the code bellow to your App.js and you'll see the animation.
If you don't have Expo, just change the import to react-native-vecto-icons.
import React from "react";
import { Animated, Easing, Text, View } from "react-native";
import Icon from "@expo/vector-icons/Ionicons";
AnimatedIcon = Animated.createAnimatedComponent(Icon);
export default class RootComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
isLoading: true,
isAnimating: false,
iconSize: new Animated.Value(60)
};
}
startAnimation = () => {
Animated.timing(this.state.iconSize, {
toValue: 1500,
duration: 1000,
easing: Easing.back(0.8)
}).start(() => this.setState({ isAnimating: false }));
};
componentDidMount() {
let x = setTimeout(() => {
let isLoading = !this.state.isLoading;
let isAnimating = !this.state.isAnimating;
this.setState({ isLoading, isAnimating });
this.startAnimation();
clearTimeout(x);
}, 2000);
}
render() {
if (this.state.isLoading || this.state.isAnimating)
return (
<Animated.View
style={{
flex: 1,
alignItems: "center",
justifyContent: "center",
backgroundColor: "#1b95e0"
}}
>
<AnimatedIcon
name={"logo-twitter"}
style={{
alignSelf: "center",
fontSize: this.state.iconSize
}}
color={"#fff"}
/>
</Animated.View>
);
return (
<View style={{ flex: 1, alignItems: "center", justifyContent: "center" }}>
<Text>TWITTER APP :)</Text>
</View>
);
}
}