通常情况下，app在ios上后台运行时，发送的推送无法被app监听，并执行自定义操作。
这个时候，需要发起Remote Notifications（ios7开始支持后台）
ios7和ios6对比：
可以看出，ios7的消息可供我们自定义后再发出（服务端需要设置content-available: 1 ）。
这样，在客户端可以在
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler；
方法里监听到后台运行的回调，在这里可以发起请求，播报语音等操作：
1，直接播报语音：
在xcode项目的根目录级的plugins目录下的AppDelegate+JPush.m文件下，找到（没有的话直接在Classes目录下的AppDelegate.m添加）上面的那个方法
这个方法可处理app后台运行时的回调
#import "AppDelegate+JPush.h"
#import "JPushPlugin.h"
#import <objc/runtime.h>
#import <AdSupport/AdSupport.h>
#import <UserNotifications/UserNotifications.h>
#import "JPushDefine.h"
#import <AVFoundation/AVFoundation.h> // 用于播报语音
@implementation AppDelegate (JPush)
+(void)load{
Method origin1;
Method swizzle1;
origin1 = class_getInstanceMethod([self class],@selector(init));
swizzle1 = class_getInstanceMethod([self class], @selector(init_plus));
method_exchangeImplementations(origin1, swizzle1);
}
-(instancetype)init_plus{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidLaunch:) name:UIApplicationDidFinishLaunchingNotification object:nil];
return [self init_plus];
}
NSDictionary *_launchOptions;
-(void)applicationDidLaunch:(NSNotification *)notification{
if (!_jpushEventCache) {
_jpushEventCache = @{}.mutableCopy;
}
[JPUSHService registrationIDCompletionHandler:^(int resCode, NSString *registrationID) {
NSDictionary *event = @{@"registrationId": registrationID?:@""};
[JPushPlugin fireDocumentEvent:JPushDocumentEvent_receiveRegistrationId jsString:[event toJsonString]];
}];
if (notification != nil &&
[[UIDevice currentDevice].systemVersion floatValue] < 10.0) {// iOS 10 以后通过 openNotification 这个回调触发事件。
if (notification.userInfo) {
if ([notification.userInfo valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey]) {
[JPushPlugin fireDocumentEvent:JPushDocumentEvent_OpenNotification
jsString:[[self jpushFormatAPNSDic: notification.userInfo[UIApplicationLaunchOptionsRemoteNotificationKey]] toJsonString]];
}
if ([notification.userInfo valueForKey:UIApplicationLaunchOptionsLocalNotificationKey]) {
UILocalNotification *localNotification = [notification.userInfo valueForKey:UIApplicationLaunchOptionsLocalNotificationKey];
NSMutableDictionary *localNotificationEvent = @{}.mutableCopy;
localNotificationEvent[@"content"] = localNotification.alertBody;
localNotificationEvent[@"badge"] = @(localNotification.applicationIconBadgeNumber);
localNotificationEvent[@"extras"] = localNotification.userInfo;
[JPushPlugin fireDocumentEvent:JPushDocumentEvent_OpenNotification jsString:[localNotificationEvent toJsonString]];
}
}
}
[JPUSHService setDebugMode];
NSString *plistPath = [[NSBundle mainBundle] pathForResource:JPushConfig_FileName ofType:@"plist"];
NSMutableDictionary *plistData = [[NSMutableDictionary alloc] initWithContentsOfFile:plistPath];
NSNumber *delay = [plistData valueForKey:JPushConfig_Delay];
_launchOptions = notification.userInfo;
if (![delay boolValue]) {
[self startJPushSDK];
}
}
-(void)startJPushSDK{
[self registerForRemoteNotification];
[JPushPlugin setupJPushSDK:_launchOptions];
}
- (void)jpushSDKDidLoginNotification {
NSDictionary *event = @{@"registrationId": JPUSHService.registrationID};
[JPushPlugin fireDocumentEvent:JPushDocumentEvent_receiveRegistrationId jsString:[event toJsonString]];
}
- (NSMutableDictionary *)jpushFormatAPNSDic:(NSDictionary *)dic {
NSMutableDictionary *extras = @{}.mutableCopy;
for (NSString *key in dic) {
if([key isEqualToString:@"_j_business"] ||
[key isEqualToString:@"_j_msgid"] ||
[key isEqualToString:@"_j_uid"] ||
[key isEqualToString:@"actionIdentifier"] ||
[key isEqualToString:@"aps"]) {
continue;
}
extras[key] = dic[key];
}
NSMutableDictionary *formatDic = dic.mutableCopy;
formatDic[@"extras"] = extras;
return formatDic;
}
-(void)registerForRemoteNotification{
if ([[UIDevice currentDevice].systemVersion floatValue] >= 10.0) {
#ifdef NSFoundationVersionNumber_iOS_9_x_Max
JPUSHRegisterEntity * entity = [[JPUSHRegisterEntity alloc] init];
entity.types = UNAuthorizationOptionAlert|UNAuthorizationOptionBadge|UNAuthorizationOptionSound;
[JPUSHService registerForRemoteNotificationConfig:entity delegate:self];
#endif
}else if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) {
//可以添加自定义categories
[JPUSHService registerForRemoteNotificationTypes:(UIUserNotificationTypeBadge |
UIUserNotificationTypeSound |
UIUserNotificationTypeAlert)
categories:nil];
} else if([[UIDevice currentDevice].systemVersion floatValue] < 8.0){
//categories 必须为nil
[JPUSHService registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge |
UIRemoteNotificationTypeSound |
UIRemoteNotificationTypeAlert)
categories:nil];
}
}
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
[JPUSHService registerDeviceToken:deviceToken];
}
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo{
[JPUSHService handleRemoteNotification:userInfo];
[JPushPlugin fireDocumentEvent:JPushDocumentEvent_ReceiveNotification jsString:[userInfo toJsonString]];
}
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler{
NSString *eventName;
// 根据app运行情况，发送不同的事件给document监听，后台运行时（根据[UIApplication shareApplication].applicationState === UIApplicationStateBackground来判断）的事件推送给document
switch ([UIApplication sharedApplication].applicationState) {
case UIApplicationStateBackground:
eventName = JPushDocumentEvent_BackgroundNotification;
break;
default:
eventName = JPushDocumentEvent_ReceiveNotification;
break;
}
[JPUSHService handleRemoteNotification:userInfo];
[JPushPlugin fireDocumentEvent:eventName jsString:[[self jpushFormatAPNSDic:userInfo] toJsonString]];// 发起事件和推送
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(30 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
completionHandler(UIBackgroundFetchResultNewData);
});
// 可以在此处进行语音播报，这里可以取到userInfo内容进行播报
AVSpeechSynthesizer * synthsizer = [[AVSpeechSynthesizer alloc] init];
AVSpeechUtterance * utterance = [[AVSpeechUtterance alloc] initWithString:@"语音播报生效了"];//需要转换的文本
utterance.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"zh-CN"];//国家语言
utterance.rate = 0.4f;//声速
[synthsizer speakUtterance:utterance];
}
-(void)jpushNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(NSInteger))completionHandler{
NSMutableDictionary *userInfo = @{}.mutableCopy;
if ([notification.request.trigger isKindOfClass:[UNPushNotificationTrigger class]]) {
userInfo = [self jpushFormatAPNSDic:notification.request.content.userInfo];
} else {
UNNotificationContent *content = notification.request.content;
userInfo[@"content"] = content.body;
userInfo[@"badge"] = content.badge;
userInfo[@"extras"] = content.userInfo;
userInfo[@"identifier"] = notification.request.identifier;
}
completionHandler(UNNotificationPresentationOptionBadge|UNNotificationPresentationOptionSound|UNNotificationPresentationOptionAlert);
if ([userInfo[@"aps"][@"content-available"] isEqualToNumber:@(1)]) {// content-available 当用户开启后台推送是，防止触发两次事件
return;
}
[JPushPlugin fireDocumentEvent:JPushDocumentEvent_ReceiveNotification jsString:[userInfo toJsonString]];
}
-(void)jpushNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler{
UNNotification *notification = response.notification;
NSMutableDictionary *userInfo = @{}.mutableCopy;
if ([notification.request.trigger isKindOfClass:[UNPushNotificationTrigger class]]) {
userInfo = [self jpushFormatAPNSDic:notification.request.content.userInfo];
} else {
UNNotificationContent *content = notification.request.content;
userInfo[@"content"] = content.body;
userInfo[@"badge"] = content.badge;
userInfo[@"extras"] = content.userInfo;
userInfo[@"identifier"] = notification.request.identifier;
}
[JPushPlugin fireDocumentEvent:JPushDocumentEvent_OpenNotification jsString:[userInfo toJsonString]];
completionHandler();
}
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
NSMutableDictionary *localNotificationEvent = @{}.mutableCopy;
localNotificationEvent[@"content"] = notification.alertBody;
localNotificationEvent[@"badge"] = @(notification.applicationIconBadgeNumber);
localNotificationEvent[@"extras"] = notification.userInfo;
[[NSNotificationCenter defaultCenter] postNotificationName:JPushDocumentEvent_ReceiveLocalNotification object:localNotificationEvent];
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
// [application setApplicationIconBadgeNumber:0];
// [application cancelAllLocalNotifications];
}
- (void)applicationDidEnterBackground:(UIApplication *)application {
// [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
}
@end
2，在app内监听JPush发送过来的事件，发起播报和请求等
监听上诉代码中的发起给document的jpush.backgroundNotification事件：
// ios在后台运行时，jpush推送过来的事件监听
document.addEventListener("jpush.backgroundNotification", onBackgroundNotification, false);
function onBackgroundNotification(notification) {
if (ServerConfig.businessConfigValue.isOpenBroadcast) {
// 语音播报的调用
readSalePatTrade(notification);
}
}
// 处理收款播报
function readSalePatTrade(notice) {
if ((notice.path === 'eventmenu.paymentRecord') || (notice.extras['cn.jpush.android.EXTRA'].path === 'eventmenu.paymentRecord')) {
var orderSn = notice.param || notice.extras['cn.jpush.android.EXTRA'].param;
psisServices.postEncode('/admin/inner/pay/getSalePayTrade.ac?businessSn=' + orderSn, {}, true)
.success(function (res) {
if (res = res.object) {
if (res.tradeStatus === 'success') {
mediaFactory.audio.start(res.amount);// 这里的播报请查看我的另一篇文章《cordova-plugin-background-mode+cordova-plugin-media实现APP在ios后台运行时发起语音播报》
}
}
});
}
}
详情请查看：
https://www.jianshu.com/p/ef344a294f99
https://www.jianshu.com/p/a41cb018f0b5
https://docs.jiguang.cn/jpush/client/iOS/ios_new_fetures/#ios-7-background-remote-notification
https://docs.jiguang.cn/jpush/client/iOS/ios_api/#apns