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util.js
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util.js
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import React from 'react';
import {
PixelRatio,
Dimensions,
View,
Platform,
Image,
} from 'react-native';
import Toast from 'react-native-root-toast';
import { NavigationActions } from 'react-navigation'
import OverlaySpinner from 'react-native-loading-spinner-overlay'
import KevaColors from './common/KevaColors';
export const IS_ANDROID = Platform.OS === 'android';
export const backAction = NavigationActions.back({
key: null
});
let statusEnabled = true;
export function enableStatus(enabled) {
statusEnabled = enabled;
}
export function isStatusEnable() {
return statusEnabled;
}
export function showStatus(message, duration=60000) {
if (!statusEnabled) {
return;
}
return Toast.show(message, {
duration: duration,
position: Toast.positions.BOTTOM,
backgroundColor: "#53DD6C",
opacity: 0.9,
shadow: true,
animation: false,
hideOnPress: true,
delay: 0
});
}
export function showStatusAlways(message, duration=60000) {
return Toast.show(message, {
duration: duration,
position: Toast.positions.TOP,
backgroundColor: "#53DD6C",
opacity: 0.9,
shadow: true,
animation: false,
hideOnPress: true,
delay: 0
});
}
export function hideStatus(toast) {
if (toast) {
Toast.hide(toast);
}
}
export function toastError(message) {
return Toast.show(message, {
duration: Toast.durations.LONG,
position: Toast.positions.TOP,
backgroundColor: KevaColors.errColor,
opacity: 0.9,
shadow: true,
animation: false,
hideOnPress: true,
delay: 0
});
}
export const THIN_BORDER = 1 / PixelRatio.get();
export function getOverlaySpinner(visible) {
return <OverlaySpinner visible={visible} textContent={''} color={"#ff8274"} overlayColor={'rgba(255,255,255,0.75)'}/>
}
export const SCREEN_WIDTH = Dimensions.get('window').width;
export const ModalHandle = <View style={{height: 6, width: 40, borderRadius: 3, backgroundColor: '#ddd', alignSelf: 'flex-start'}}/>;
export function timeConverter(UNIX_timestamp) {
let a = new Date(UNIX_timestamp * 1000);
let year = a.getFullYear();
let month = a.getMonth() + 1;
let date = a.getDate();
let hour = a.getHours();
let min = a.getMinutes() < 10 ? '0' + a.getMinutes() : a.getMinutes();
let sec = a.getSeconds() < 10 ? '0' + a.getSeconds() : a.getSeconds();
let timeStr = year + '-' + month + '-' + date + ' ' + hour + ':' + min + ':' + sec ;
return timeStr;
}
export function getImageSize(uri) {
return new Promise((resolve, reject) => {
Image.getSize(uri, (width, height) => {
console.log(`The image dimensions are ${width}x${height}`);
resolve({width, height});
}, error => {
console.error(`Couldn't get the image size: ${error.message}`);
reject(error);
});
});
}
export function stringToColor(str) {
if (!str) {
return '#aaa';
}
let hash = 0;
for (let i = 0; i < str.length; i++) {
hash = str.charCodeAt(i) + ((hash << 5) - hash);
}
let color = '#';
for (let i = 0; i < 3; i++) {
let value = (hash >> (i * 8)) & 0xFF;
color += ('00' + value.toString(16)).substr(-2);
}
return color + 'bb';
}
export function getInitials(name) {
if (!name) {
return ' ';
}
const names = name.split(' ');
let initials = names[0].substring(0, 1).toUpperCase();
if (names.length > 1) {
initials += names[names.length - 1].substring(0, 1).toUpperCase();
}
return initials;
}
export async function sleepAync(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}