60 lines
1.5 KiB
TypeScript
60 lines
1.5 KiB
TypeScript
import { Camera } from 'expo-camera'
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import { Alert, Linking, Platform } from 'react-native'
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/**
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* 检查相机权限
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* @returns Promise<boolean> 是否已授权
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*/
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export async function hasCameraPermission(): Promise<boolean> {
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if (Platform.OS === 'web') return true
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try {
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const { status } = await Camera.getCameraPermissionsAsync()
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return status === 'granted'
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} catch (e) {
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return false
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}
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}
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/**
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* 请求相机权限，Promise风格
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* @returns Promise<boolean> 是否已授权
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*/
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export async function requestCameraPermission(): Promise<boolean> {
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if (Platform.OS === 'web') return true
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try {
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const { status } = await Camera.requestCameraPermissionsAsync()
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return status === 'granted'
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} catch (e) {
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return false
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}
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}
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/**
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* 如果没有权限则弹窗提示并引导用户去设置
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* @param message 提示内容
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* @returns Promise<boolean> 是否已授权
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*/
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export async function ensureCameraPermission(message = '需要相机权限，请在设置中开启'): Promise<boolean> {
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const granted = await hasCameraPermission()
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if (granted) return true
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const requested = await requestCameraPermission()
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if (requested) return true
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Alert.alert(
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'权限提示',
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message,
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[
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{ text: '取消', style: 'cancel' },
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{
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text: '去设置',
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onPress: () => {
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Linking.openSettings()
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},
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},
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],
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{ cancelable: true },
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)
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return false
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}
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// 可扩展：请求麦克风、相册等权限
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