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react-native-qrcode-snapshot
Advanced tools
react-native中产生二维码和保存快照到相册中
快照只适用于ios,如果想在安卓上也支持快照。可以使用react-native-view-shot作为安卓的补充。
import { captureRef } from "react-native-view-shot";
snapshot_src = "";
async snapshot() {
if (this.snapshot_src) return this.snapshot_src;
if (Platform.OS === "ios") {
return this.refs.share.save();
} else {
this.snapshot_src = captureRef(this.refs.share)
return this.snapshot_src;
}
}
async save() {
let img = await this.snapshot();
return CameraRoll.saveToCameraRoll(img, "photo");
}
./lib/QRCode
通过使用qrcode.js的方式在webview中产生合适的二维码图片。
使用示例
import { QRCode } from "react-native-qrcode-snapshot"
<QRCode value="二维码内容" size={100} />
参数:
const props={
value: "", //二维码要显示的内容
size: 100, //二维码组件要展示的大小
bgColor: "#fff", //背景色
fgColor: "#000", //前景色,像素块的颜色
engine: "http://img.daling.com/st/topic/qrcode.min.js", //产生二维码使用的引擎地址,可以替换成自己的地址
onLoad: () => { }, //浏览器加载回调
onLoadEnd: () => { }, //浏览器加载回调
}
通过使用快照的方式产生组件的图片,并保存在手机的相册中。
使用示例
import {Snapshot} from "react-native-qrcode-snapshot"
<Snapshot ref="snapshot" style={{width:100}}>
{/*自定义内容*/}
<View>
<Text>显示自定义内容</Text>
</View>
</Snapshot>
//点击按钮等触发
onclick(){
this.refs.snapshot.takeSnapshot();
}
参数:
snapshot.takeSnapshot({
format: 'png', //后缀,支持主流图片后缀
quality: 1 //质量,0-1
});
FAQs
react-native中产生二维码和保存快照到相册中
The npm package react-native-qrcode-snapshot receives a total of 3 weekly downloads. As such, react-native-qrcode-snapshot popularity was classified as not popular.
We found that react-native-qrcode-snapshot demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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