下面是iOS原生控件的相关代码,也同时调用原生，查看相关权限，如相册，相机，定位，通知状态等权限
#import <Foundation/Foundation.h>
#import <React/RCTBridgeModule.h>
#import <React/RCTLog.h>
NS_ASSUME_NONNULL_BEGIN
@interface PermissionsManager : NSObject<RCTBridgeModule>
@end
NS_ASSUME_NONNULL_END
//
// PermissionsManager.m
// TempApp
//
// Created by jiangguoxing-mac on 2019/11/5.
// Copyright © 2019 Facebook. All rights reserved.
//
#import "PermissionsManager.h"
#import <AVFoundation/AVFoundation.h>
#import <AssetsLibrary/AssetsLibrary.h>
#import <CoreLocation/CoreLocation.h>
#import <Photos/Photos.h>
//iOS调用RN
#import <React/RCTEventDispatcher.h>
@implementation PermissionsManager
@synthesize bridge = _bridge;
RCT_EXPORT_MODULE();
- (NSDictionary *)baseInfomation {
return @{ @"name": @"PermissionsManager" };
}
//Promises
//最后两个参数是RCTPromiseResolveBlock（成功block）和RCTPromiseRejectBlock（失败block）
/*
//正确回调，传递参数
typedef void (^RCTPromiseResolveBlock)(id result);
*/
/*
//错误回调，传三个参数
typedef void (^RCTPromiseRejectBlock)(NSString *code, NSString *message, NSError *error);
*/
#define IOS8 ([[[UIDevice currentDevice] systemVersion] doubleValue] >=8.0 ? YES : NO)
/**
相机权限
*/
RCT_EXPORT_METHOD(cameraPermission:(RCTPromiseResolveBlock)resolve reject:(RCTPromiseRejectBlock)reject) {
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied){
//无权限
reject(@"500",@"没有访问相机权限，请前往 ‘设置’-‘隐私’-‘相机’ 开启权限",nil);
}else if (authStatus == AVAuthorizationStatusNotDetermined ){
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
dispatch_async(dispatch_get_main_queue(), ^{
if (granted) {
//允许访问
if (TARGET_IPHONE_SIMULATOR == 1 && TARGET_OS_IPHONE == 1) {
//模拟器
reject(@"500",@"模拟器无法访问摄像头，请换真机",nil);
}else{
//真机
resolve(@YES);
}
}else{
//不允许访问
reject(@"500",@"没有访问相机权限，请前往 ‘设置’-‘隐私’-‘相机’ 开启权限",nil);
}
});
}];
}else{
if (TARGET_IPHONE_SIMULATOR == 1 && TARGET_OS_IPHONE == 1) {
//模拟器
reject(@"500",@"模拟器无法访问摄像头，请换真机",nil);
}else{
//真机
resolve(@YES);
}
}
}
/**
相册权限
*/
RCT_EXPORT_METHOD(photoPermission:(RCTPromiseResolveBlock)resolve reject:(RCTPromiseRejectBlock)reject) {
if (IOS8) { //iOS9以上包含iOS9
PHAuthorizationStatus phStatus = [PHPhotoLibrary authorizationStatus];
if (phStatus == PHAuthorizationStatusNotDetermined) {
[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
if (status == PHAuthorizationStatusAuthorized) {
//允许访问
resolve(@YES);
}
if (status == PHAuthorizationStatusRestricted || status == PHAuthorizationStatusDenied) {
//不允许
reject(@"500",@"没有访问相册权限，请前往 ‘设置’-‘隐私’-‘相册’ 开启权限",nil);
}
}];
}else if (phStatus == PHAuthorizationStatusRestricted || phStatus == PHAuthorizationStatusDenied){
reject(@"500",@"没有访问相册权限，请前往 ‘设置’-‘隐私’-‘相册’ 开启权限",nil);
}else{
resolve(@YES);
}
}else{ // ios7 以下
ALAuthorizationStatus author = [ALAssetsLibrary authorizationStatus];
if (author == ALAuthorizationStatusRestricted || author ==ALAuthorizationStatusDenied)
{
//无权限
reject(@"500",@"没有访问相册权限，请前往 ‘设置’-‘隐私’-‘相册’ 开启权限",nil);
}else {
// 有权限
resolve(@YES);
}
}
}
/**
定位权限
*/
RCT_EXPORT_METHOD(locationPermission:(RCTPromiseResolveBlock)resolve reject:(RCTPromiseRejectBlock)reject) {
if([CLLocationManager locationServicesEnabled] && [CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied) {
//无权限
reject(@"500",@"没有访问位置权限，请前往 ‘设置’-‘隐私’-‘位置’ 开启权限",nil);
}else {
// 有权限
resolve(@YES);
}
}
/**
麦克风权限
*/
RCT_EXPORT_METHOD(microphonePermission:(RCTPromiseResolveBlock)resolve reject:(RCTPromiseRejectBlock)reject) {
AVAudioSession *avSession = [AVAudioSession sharedInstance];
if ([avSession respondsToSelector:@selector(requestRecordPermission:)]) {
[avSession requestRecordPermission:^(BOOL available) {
if (available) {
resolve(@YES);
}else {
reject(@"500",@"没有访问麦克风权限，请前往 ‘设置’-‘隐私’-‘麦克风’ 开启权限",nil);
}
}];
}
}
/**
通知状态
*/
RCT_EXPORT_METHOD(notificationStatus:(RCTResponseSenderBlock)callback){
if (IOS8) { //iOS8以上包含iOS8
if ([[UIApplication sharedApplication] currentUserNotificationSettings].types == UIUserNotificationTypeNone) {
callback(@[@NO]);
}else{
callback(@[@YES]);
}
}else{ // ios7 以下
if ([[UIApplication sharedApplication] enabledRemoteNotificationTypes] == UIRemoteNotificationTypeNone) {
callback(@[@NO]);
}else{
callback(@[@YES]);
}
}
}
@end
其中RCT_EXPORT_METHOD()是导出方法名
下面是RN调用原生的方法,这是我封装的一个RN类，与调用原生的方法
import React, { Component } from 'react';
import {
View,
NativeModules,
NativeAppEventEmitter,//导入
} from 'react-native';
//在JavaScript中调用Object-C定义的方法，需要先导入NativeModules
//此处的RNCalliOSAction就是我们在iOS上新建的类名
//如果在iOS中设置了导出了类的名字，此处需要和导出的名字一致
const manager = NativeModules.PermissionsManager;
/*相机权限*/
const cameraPermission = () => {
return new Promise((resolve, reject) => {
manager.cameraPermission().then(data => {
resolve(data);
}).catch(err => {
reject(err);
});
});
};
/*相机权限*/
const photoPermission = () => {
return new Promise((resolve, reject) => {
manager.photoPermission().then(data => {
resolve(data);
}).catch(err => {
reject(err);
});
});
};
/*位置权限*/
const locationPermission = () => {
return new Promise((resolve, reject) => {
manager.locationPermission().then(data => {
resolve(data);
}).catch(err => {
reject(err);
});
});
};
/*麦克风权限*/
const microphonePermission = () => {
return new Promise((resolve, reject) => {
manager.microphonePermission().then(data => {
resolve(data);
}).catch(err => {
reject(err);
});
});
};
/*通知状态*/
const notificationStatus = () => {
return new Promise((resolve) => {
manager.notificationStatus((status)=>{
resolve(status);
});
});
};
/*通知状态*/
const getLocalAssets = () => {
return new Promise((resolve, reject) => {
manager.getLocalBundle().then(data => {
resolve(data);
}).catch(err => {
reject(err);
});
});
};
export default {
cameraPermission,
photoPermission,
locationPermission,
microphonePermission,
notificationStatus,
getLocalAssets
};
下面是在RN相关页面中的使用方法
import React, { Component } from 'react';
import { View, Text, TouchableOpacity, Platform } from 'react-native';
//首先要导入自己定义的文件
import PermissionsManager from '../../commons/utils/permissionsManager';
export default class WriteTaskForm extends React.Component {
constructor(props) {
super(props)
this.state = {
}
}
render() {
return (
<View style={{ flex: 1 }}>
<TouchableOpacity onPress={() => { this.method()}}>
<Text>实例</Text>
</TouchableOpacity>
</View>
)
}
// 回调
method() {
PermissionsManager.cameraPermission().then(data => {
//成功的返回
}).catch(err => {
//失败的返回
alert(err.message);
});
}
}
const styles = {
container: {
flex: 1,
backgroundColor: '#9a9a9a'
},
}
