//就举一个例子 记得加上async异步
async requestReadPermission() {
try {
//返回string类型
const granted = await PermissionsAndroid.request(
PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,
{
//第一次请求拒绝后提示用户你为什么要这个权限
‘title’: ‘我要读写权限’,
‘message’: ‘没权限我不能工作，同意就好了’
}
)
if (granted === PermissionsAndroid.RESULTS.GRANTED) {
this.show(“你已获取了读写权限”)
} else {
this.show(“获取读写权限失败”)
}
} catch (err) {
this.show(err.toString())
}
}
//核实
checkPermission() {
try {
//返回Promise类型
const granted = PermissionsAndroid.check(
PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE
)
granted.then((data)=>{
this.show(“是否获取读写权限”+data)
}).catch((err)=>{
this.show(err.toString())
})
} catch (err) {
this.show(err.toString())
}
}
//请求多个
async requestMultiplePermission() {
try {
const permissions = [
PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,
PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION,
PermissionsAndroid.PERMISSIONS.CAMERA
]
//返回得是对象类型
const granteds = await PermissionsAndroid.requestMultiple(permissions)
var data = "是否同意地址权限: "
if (granteds[“android.permission.ACCESS_FINE_LOCATION”] === “granted”) {
data = data + “是\n”
} else {
data = data + “否\n”
}
data = data+"是否同意相机权限: "
if (granteds[“android.permission.CAMERA”] === “granted”) {
data = data + “是\n”
} else {
data = data + “否\n”
}
data = data+"是否同意存储权限: "
if (granteds[“android.permission.WRITE_EXTERNAL_STORAGE”] === “granted”) {
data = data + “是\n”
} else {
data = data + “否\n”
}
this.show(data)
} catch (err) {
this.show(err.toString())
}
}
- 完整代码
import React,{Component} from ‘react’
import {
StyleSheet,
View,
Text,
TouchableOpacity,
ToastAndroid,
PermissionsAndroid,
} from ‘react-native’
export default class PermissionAndroidView extends Component {
render() {
return (
<TouchableOpacity style={styles.button_view}
onPress={this.requestReadPermission.bind(this)}>
<TouchableOpacity style={styles.button_view}
onPress={this.requestCarmeraPermission.bind(this)}>
<TouchableOpacity style={styles.button_view}
onPress={this.requestLocationPermission.bind(this)}>
<TouchableOpacity style={styles.button_view}
onPress={this.checkPermission.bind(this)}>
<TouchableOpacity style={styles.button_view}
onPress={this.requestMultiplePermission.bind(this)}>
)
}
show(data) {
ToastAndroid.show(data,ToastAndroid.SHORT)
}
/*
-
弹出提示框向用户请求某项权限。返回一个promise，最终值为用户是否同意了权限申请的布尔值。
-
其中rationale参数是可选的，其结构为包含title和message)的对象。
-
此方法会和系统协商，是弹出系统内置的权限申请对话框，
-
还是显示rationale中的信息以向用户进行解释。
-
*/
async requestReadPermission() {
try {
//返回string类型
const granted = await PermissionsAndroid.request(
PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,
{
//第一次请求拒绝后提示用户你为什么要这个权限
‘title’: ‘我要读写权限’,
‘message’: ‘没权限我不能工作，同意就好了’
}
)
if (granted === PermissionsAndroid.RESULTS.GRANTED) {
this.show(“你已获取了读写权限”)
} else {
this.show(“获取读写权限失败”)
}
} catch (err) {
this.show(err.toString())
}
}
async requestCarmeraPermission() {
try {
const granted = await PermissionsAndroid.request(
PermissionsAndroid.PERMISSIONS.CAMERA,
{
//第一次请求拒绝后提示用户你为什么要这个权限
‘title’: ‘我要相机权限’,
‘message’: ‘没权限我不能工作，同意就好了’
}
)
if (granted === PermissionsAndroid.RESULTS.GRANTED) {
this.show(“你已获取了相机权限”)
} else {
this.show(“获取相机失败”)
}
} catch (err) {
this.show(err.toString())
}
}
async requestLocationPermission() {
try {
const granted = await PermissionsAndroid.request(
PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION,
{
//第一次请求拒绝后提示用户你为什么要这个权限
‘title’: ‘我要地址查询权限’,
‘message’: ‘没权限我不能工作，同意就好了’
}
)
if (granted === PermissionsAndroid.RESULTS.GRANTED) {
this.show(“你已获取了地址查询权限”)
} else {
this.show(“获取地址查询失败”)
}
} catch (err) {
this.show(err.toString())
}
}
checkPermission() {
try {
//返回Promise类型
const granted = PermissionsAndroid.check(
PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE
)
granted.then((data)=>{
this.show(“是否获取读写权限”+data)
(granted === PermissionsAndroid.RESULTS.GRANTED) {
this.show(“你已获取了地址查询权限”)
} else {
this.show(“获取地址查询失败”)
}
} catch (err) {
this.show(err.toString())
}
}
checkPermission() {
try {
//返回Promise类型
const granted = PermissionsAndroid.check(
PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE
)
granted.then((data)=>{
this.show(“是否获取读写权限”+data)