本文介绍环信离线消息推送的两种情况：app在后台、杀死app；
先解决简单的情况（app在后台），步骤如下：
1.到环信后台，给对应的APP配置好两套证书：开发环境、生产环境的证书
2.在AppDelegate中添加如下初始化环信代码：
#pragma mark -- wsx 环信初始化 --
-(void)registerChat
{
NSLog(@"环信的SDK的版本 --- %@",[[EMClient sharedClient] version]);
EMOptions *options = [EMOptions optionsWithAppkey:@"1126170418178162#weiguanke"];
options.apnsCertName = nil;
options.enableConsoleLog = YES;
[[EMClient sharedClient] initializeSDKWithOptions:options];
}
3.在APP的RootViewController中添加如下代码：
//导入如下类文件
#import //环信消息两次提示的默认间隔
#import "UserProfileManager.h"//wsx - 环信 - 接收本地推送
#import "EaseUI.h"//环信UI
//添加静态变量
static const CGFloat kDefaultPlaySoundInterval = 3.0;
static NSString *kMessageType = @"MessageType";
static NSString *kConversationChatter = @"ConversationChatter";
static NSString *kGroupName = @"GroupName";
//添加属性 - 用于记录接收IM消息的最新时间
@property (strong, nonatomic) NSDate *lastPlaySoundDate;//wsx环信IM - 离线推送接收声音
//rootViewController中添加如下代码
#pragma mark ---------------------wsx 环信IM 离线推送 ---------------------
//环信 - 接收本地推送
#pragma mark -- 接收环信消息时响铃和震动 ----
- (void)didReceiveMessages:(NSArray *)aMessages{
// wsx 离线推送
for(EMMessage *message in aMessages){
UIApplicationState state = [[UIApplication sharedApplication] applicationState];
#if !TARGET_IPHONE_SIMULATOR
switch (state) {
case UIApplicationStateActive:
[self playSoundAndVibration];
break;
case UIApplicationStateInactive:
[self playSoundAndVibration];
break;
case UIApplicationStateBackground:
[self showNotificationWithMessage:message];
break;
default:
break;
}
#endif
}
}
// 离线推送
- (void)showNotificationWithMessage:(EMMessage *)message
{
[self playSoundAndVibration];
EMPushOptions *options = [[EMClient sharedClient] pushOptions];
NSString *alertBody = nil;
if (options.displayStyle == EMPushDisplayStyleSimpleBanner) {
EMMessageBody *messageBody = message.body;
NSString *messageStr = nil;
switch (messageBody.type) {
case EMMessageBodyTypeText:
{
messageStr = ((EMTextMessageBody *)messageBody).text;
options.displayName = messageStr;
}
break;
case EMMessageBodyTypeImage:
{
messageStr = NSLocalizedString(@"message.image", @"Image");
}
break;
case EMMessageBodyTypeLocation:
{
messageStr = NSLocalizedString(@"message.location", @"Location");
}
break;
case EMMessageBodyTypeVoice:
{
messageStr = NSLocalizedString(@"message.voice", @"Voice");
}
break;
case EMMessageBodyTypeVideo:{
messageStr = NSLocalizedString(@"message.video", @"Video");
}
break;
default:
break;
}
do {
NSString *title = [[UserProfileManager sharedInstance] getNickNameWithUsername:message.from];
if (message.chatType == EMChatTypeGroupChat) {
NSDictionary *ext = message.ext;
if (ext && ext[kGroupMessageAtList]) {
id target = ext[kGroupMessageAtList];
if ([target isKindOfClass:[NSString class]]) {
if ([kGroupMessageAtAll compare:target options:NSCaseInsensitiveSearch] == NSOrderedSame) {
alertBody = [NSString stringWithFormat:@"%@%@", title, NSLocalizedString(@"group.atPushTitle", @" @ me in the group")];
break;
}
}
else if ([target isKindOfClass:[NSArray class]]) {
NSArray *atTargets = (NSArray*)target;
if ([atTargets containsObject:[EMClient sharedClient].currentUsername]) {
alertBody = [NSString stringWithFormat:@"%@%@", title, NSLocalizedString(@"group.atPushTitle", @" @ me in the group")];
break;
}
}
}
NSArray *groupArray = [[EMClient sharedClient].groupManager getJoinedGroups];
for (EMGroup *group in groupArray) {
if ([group.groupId isEqualToString:message.conversationId]) {
title = [NSString stringWithFormat:@"%@(%@)", message.from, group.subject];
break;
}
}
}
else if (message.chatType == EMChatTypeChatRoom)
{
NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
NSString *key = [NSString stringWithFormat:@"OnceJoinedChatrooms_%@", [[EMClient sharedClient] currentUsername]];
NSMutableDictionary *chatrooms = [NSMutableDictionary dictionaryWithDictionary:[ud objectForKey:key]];
NSString *chatroomName = [chatrooms objectForKey:message.conversationId];
if (chatroomName)
{
title = [NSString stringWithFormat:@"%@(%@)", message.from, chatroomName];
}
}
alertBody = [NSString stringWithFormat:@"%@:%@", title, messageStr];
} while (0);
}
else{
alertBody = NSLocalizedString(@"receiveMessage", @"you have a new message");
}
NSLog(@"推送 -- -%@",alertBody);
NSTimeInterval timeInterval = [[NSDate date] timeIntervalSinceDate:self.lastPlaySoundDate];
BOOL playSound = NO;
if (!self.lastPlaySoundDate || timeInterval >= kDefaultPlaySoundInterval) {
self.lastPlaySoundDate = [NSDate date];
playSound = YES;
}
NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];
[userInfo setObject:[NSNumber numberWithInt:message.chatType] forKey:kMessageType];
[userInfo setObject:message.conversationId forKey:kConversationChatter];
//发送本地推送
if (NSClassFromString(@"UNUserNotificationCenter")) {
UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:0.01 repeats:NO];
UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
if (playSound) {
content.sound = [UNNotificationSound defaultSound];
}
content.body = alertBody;
content.userInfo = userInfo;
NSLog(@"%@",userInfo);
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:message.messageId content:content trigger:trigger];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:nil];
}
else {
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.fireDate = [NSDate date]; //触发通知的时间
notification.alertBody = alertBody;
notification.alertAction = NSLocalizedString(@"open", @"Open");
notification.timeZone = [NSTimeZone defaultTimeZone];
if (playSound) {
notification.soundName = UILocalNotificationDefaultSoundName;
}
notification.userInfo = userInfo;
NSLog(@"%@",userInfo);
//发送通知
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}
}
#pragma mark - private
- (BOOL)_needShowNotification:(NSString *)fromChatter
{
BOOL ret = YES;
NSArray *igGroupIds = [[EMClient sharedClient].groupManager getGroupsWithoutPushNotification:nil];
for (NSString *str in igGroupIds) {
if ([str isEqualToString:fromChatter]) {
ret = NO;
break;
}
}
return ret;
}
- (void)playSoundAndVibration{
NSTimeInterval timeInterval = [[NSDate date]
timeIntervalSinceDate:self.lastPlaySoundDate];
if (timeInterval < kDefaultPlaySoundInterval) {
//如果距离上次响铃和震动时间太短, 则跳过响铃
// NSLog(@"skip ringing & vibration %@, %@", [NSDate date], self.lastPlaySoundDate);
return;
}
//保存最后一次响铃时间
self.lastPlaySoundDate = [NSDate date];
// 收到消息时，播放音频
[[EMCDDeviceManager sharedInstance] playNewMessageSound];
// 收到消息时，震动
[[EMCDDeviceManager sharedInstance] playVibration];
}