Question

我正在尝试向用户或所有用户列表发送推送通知。我可以使用此代码段在ios设备上成功发送（和接收）：

// Create our Installation query
PFQuery *pushQuery = [PFInstallation query];
[pushQuery whereKey:@"deviceType" equalTo:@"ios"];

// Send push notification to query
[PFPush sendPushMessageToQueryInBackground:pushQuery
                               withMessage:@"Hello World!"];

但是这段代码不起作用：

PFQuery *userQuery = [PFUser query];
NSLog(@"findObjects: %@",[userQuery findObjects]);

[userQuery findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
    NSLog(@"findObjectsInBackgroundWithBlock error: %@", error);
    NSLog(@"findObjectsInBackgroundWithBlock objects: %@", objects);   //this log indicated I do have one user named "user name"
}];

    PFQuery *pushQuery = [PFInstallation query];
//    [pushQuery whereKey:@"user" matchesQuery:userQuery];
    [pushQuery whereKey:@"username" containsString:@"user name"];   //neither one of these works


// Send push notification to query
[PFPush sendPushMessageToQueryInBackground:pushQuery
                               withMessage:@"for you only"];

在parse.com网站的推送通知仪表板上，它的状态为“已完成”但订阅者为0。

有什么建议吗？

编辑：Parse仪表板的更多细节：

enter image description here

Answer 1

您必须像使用PFUser查询一样查询您的用户。找到要发送推送到的用户后，您必须使用该PFUser对象＆＃39;进行安装查询。（您应该使用整个PFUser对象作为安装查询的密钥）

如果您想向一组用户发送推送，则必须设置Parse＆＃34; Segments＆＃34;并将用户分配给该细分。阅读Parse iOS推送文档https://parse.com/docs/push_guide#top/iOS

以下是向单个用户发送推送的示例：

PFQuery *qry = [PFUser query];
                [qry getObjectWithId: THE USERS OBJECT ID HERE ];

                PFQuery *pushQuery = [PFInstallation query];
                [pushQuery whereKey:@"user" matchesQuery:qry];

                // Send push notification to query
                PFPush *push = [[PFPush alloc] init];
                [push setQuery:pushQuery]; // Set our Installation query
                NSDictionary *data = [NSDictionary dictionaryWithObjectsAndKeys:
                                      @"A New Push Message was Put HERE!", @"alert",
                                      @"ursound.caf", @"sound",
                                      @"Increment", @"badge",
                                      @"Optionally a type was set", @"type",
                                      nil];
                [push setData:data];


                [push sendPushInBackground];

编辑 - 哦，我的例子中的那些初始查询被认为已经在后台任务中 - ＆gt;如果没有在后台任务中运行它，请使用getObjectInBackgroundWithId：^（bla bla ..）。

Answer 2

事实证明，要接收个别推送通知，接收方应用程序也需要这样做（登录后）：

[[PFInstallation currentInstallation] setObject:[PFUser currentUser] forKey:@"user"];
[[PFInstallation currentInstallation] saveEventually:^(BOOL succeeded, NSError *error) {
    //NSLog(@"saveeventually bool: %hhd error: %@", succeeded, error);
}];

解析：向用户发送推送通知

2 个答案: