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index.js
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index.js
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import React from "react";
import PropTypes from "prop-types";
import { Image, ImageBackground, ActivityIndicator, View } from "react-native";
class ImagePlaceholder extends React.Component {
static propTypes = {
isShowActivity: PropTypes.bool,
};
static defaultProps = {
isShowActivity: true,
};
constructor(props) {
super(props);
this.state = {
isLoaded: false,
isError: false,
};
}
onLoadEnd() {
this.setState({
isLoaded: true,
});
}
onError() {
this.setState({
isError: true,
});
}
render() {
const {
style,
source,
resizeMode,
borderRadius,
backgroundColor,
children,
loadingStyle,
placeholderSource,
placeholderStyle,
customImagePlaceholderDefaultStyle,
} = this.props;
return (
<ImageBackground
onLoadEnd={this.onLoadEnd.bind(this)}
onError={this.onError.bind(this)}
style={[styles.backgroundImage, style]}
source={source}
resizeMode={resizeMode}
borderRadius={borderRadius}
>
{this.state.isLoaded && !this.state.isError ? (
children
) : (
<View
style={[
styles.viewImageStyles,
{ borderRadius: borderRadius },
backgroundColor ? { backgroundColor: backgroundColor } : {},
]}
>
{this.props.isShowActivity && !this.state.isError && (
<ActivityIndicator
style={styles.activityIndicator}
size={loadingStyle ? loadingStyle.size : "small"}
color={loadingStyle ? loadingStyle.color : "gray"}
/>
)}
<Image
style={
placeholderStyle
? placeholderStyle
: [
styles.imagePlaceholderStyles,
customImagePlaceholderDefaultStyle,
]
}
source={
placeholderSource
? placeholderSource
: require("./Images/empty-image.png")
}
></Image>
</View>
)}
{this.props.children && (
<View style={styles.viewChildrenStyles}>{this.props.children}</View>
)}
</ImageBackground>
);
}
}
const styles = {
backgroundImage: {
position: "relative",
},
activityIndicator: {
position: "absolute",
margin: "auto",
zIndex: 9,
},
viewImageStyles: {
flex: 1,
backgroundColor: "#e9eef1",
justifyContent: "center",
alignItems: "center",
},
imagePlaceholderStyles: {
width: 100,
height: 100,
resizeMode: "contain",
justifyContent: "center",
alignItems: "center",
},
viewChildrenStyles: {
top: 0,
left: 0,
right: 0,
bottom: 0,
position: "absolute",
backgroundColor: "transparent",
},
};
export default ImagePlaceholder;