「Unity/Firebase/Realtimedatabase/json」の版間の差分
提供: 初心者エンジニアの簡易メモ
(→jsonの値を取得例) |
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(同じ利用者による、間の6版が非表示) | |||
行22: | 行22: | ||
</pre> | </pre> | ||
− | + | 参考: | |
https://firebase.google.com/docs/database/unity/save-data?hl=ja | https://firebase.google.com/docs/database/unity/save-data?hl=ja | ||
+ | |||
+ | ==jsonで受け取る== | ||
+ | <pre> | ||
+ | string userId = "111"; | ||
+ | FirebaseDatabase.DefaultInstance.GetReference("user").Child(userId) | ||
+ | .GetValueAsync().ContinueWith(task => | ||
+ | { | ||
+ | if (task.IsFaulted) | ||
+ | { | ||
+ | Debug.LogError("not found users"); | ||
+ | } | ||
+ | else if (task.IsCompleted) | ||
+ | { | ||
+ | DataSnapshot snapShot = task.Result; | ||
+ | Debug.Log("json=" + snapShot.GetRawJsonValue()); // {"username":"taro", "email", "taro@example"} | ||
+ | } | ||
+ | }); | ||
+ | </pre> | ||
+ | 参考:https://ntw-games.net/wp/develop/363/ | ||
+ | |||
+ | ==keyを複数含んだjsonを取得== | ||
+ | JsonUtilityだと、Dictionaryのjsonが、取り込めないので、Newtonsoft.Json側を、使うと良い。 | ||
+ | <pre> | ||
+ | using Newtonsoft.Json; | ||
+ | |||
+ | FirebaseDatabase.DefaultInstance.GetReference("users") | ||
+ | .GetValueAsync().ContinueWith(task => | ||
+ | { | ||
+ | if (task.IsFaulted) | ||
+ | { | ||
+ | Debug.LogError("not found users"); | ||
+ | } | ||
+ | else if (task.IsCompleted) | ||
+ | { | ||
+ | DataSnapshot snapShot = task.Result; | ||
+ | string json = snapShot.GetRawJsonValue(); | ||
+ | Dictionary<string, User> dic = JsonConvert.DeserializeObject<Dictionary<string, User>>(json); | ||
+ | foreach (KeyValuePair<string, User> x in dic) | ||
+ | { | ||
+ | Debug.Log(x.Key + ": " + x.Value.text); | ||
+ | } | ||
+ | } | ||
+ | }); | ||
+ | </pre> | ||
+ | User.cs | ||
+ | <pre> | ||
+ | public class User | ||
+ | { | ||
+ | public string username; | ||
+ | public string email; | ||
+ | public User() | ||
+ | { | ||
+ | } | ||
+ | public User(string username, string email) | ||
+ | { | ||
+ | this.username = username; | ||
+ | this.email = email; | ||
+ | } | ||
+ | } | ||
+ | </pre> | ||
+ | |||
+ | ==jsonの値を取得例== | ||
+ | 取得時にcallbackで、イベントを返してあげると良いが、別スレッドになってるので、メインスレッドでcallbackする。 | ||
+ | <pre> | ||
+ | List<User> users; | ||
+ | public void ExecGetUsers() | ||
+ | { | ||
+ | var context = SynchronizationContext.Current; // メインスレッドでcontextを設置 | ||
+ | FirebaseDatabase.DefaultInstance.GetReference("users") | ||
+ | .GetValueAsync().ContinueWith(task => | ||
+ | { | ||
+ | if (task.IsFaulted) | ||
+ | { | ||
+ | Debug.LogError("not found users"); | ||
+ | } | ||
+ | else if (task.IsCompleted) | ||
+ | { | ||
+ | DataSnapshot snapShot = task.Result; | ||
+ | string json = snapShot.GetRawJsonValue(); | ||
+ | |||
+ | Dictionary<string, User> dic = JsonConvert.DeserializeObject<Dictionary<string, User>>(json); | ||
+ | users = new List<User>(); | ||
+ | |||
+ | foreach (KeyValuePair<string, User> x in dic) | ||
+ | { | ||
+ | Debug.Log(x.Key + ": " + x.Value.text); | ||
+ | users.Add(x.Value); | ||
+ | } | ||
+ | // メインスレッドへ戻す | ||
+ | context.Post(d => | ||
+ | { | ||
+ | if (callbacks != null) | ||
+ | { | ||
+ | callbacks(ResponseType.Users, null); | ||
+ | } | ||
+ | }, null); | ||
+ | } | ||
+ | }); | ||
+ | } | ||
+ | </pre> | ||
+ | |||
+ | 参考: | ||
+ | [[unity/Csharp/コールバック]] [ショートカット] | ||
+ | |||
+ | https://light11.hatenadiary.com/entry/2021/01/07/203448 |
2021年9月30日 (木) 01:21時点における最新版
jsonをそのまま送信
User user = new User("taro", "taro@example"); string json = JsonUtility.ToJson(user); string userId = "111"; FirebaseDatabase.DefaultInstance.GetReference("user").Child(userId) .SetRawJsonValueAsync(json);
User.cs
public class User { public string username; public string email; public User(string username, string email) { this.username = username; this.email = email; } }
参考: https://firebase.google.com/docs/database/unity/save-data?hl=ja
jsonで受け取る
string userId = "111"; FirebaseDatabase.DefaultInstance.GetReference("user").Child(userId) .GetValueAsync().ContinueWith(task => { if (task.IsFaulted) { Debug.LogError("not found users"); } else if (task.IsCompleted) { DataSnapshot snapShot = task.Result; Debug.Log("json=" + snapShot.GetRawJsonValue()); // {"username":"taro", "email", "taro@example"} } });
参考:https://ntw-games.net/wp/develop/363/
keyを複数含んだjsonを取得
JsonUtilityだと、Dictionaryのjsonが、取り込めないので、Newtonsoft.Json側を、使うと良い。
using Newtonsoft.Json; FirebaseDatabase.DefaultInstance.GetReference("users") .GetValueAsync().ContinueWith(task => { if (task.IsFaulted) { Debug.LogError("not found users"); } else if (task.IsCompleted) { DataSnapshot snapShot = task.Result; string json = snapShot.GetRawJsonValue(); Dictionary<string, User> dic = JsonConvert.DeserializeObject<Dictionary<string, User>>(json); foreach (KeyValuePair<string, User> x in dic) { Debug.Log(x.Key + ": " + x.Value.text); } } });
User.cs
public class User { public string username; public string email; public User() { } public User(string username, string email) { this.username = username; this.email = email; } }
jsonの値を取得例
取得時にcallbackで、イベントを返してあげると良いが、別スレッドになってるので、メインスレッドでcallbackする。
List<User> users; public void ExecGetUsers() { var context = SynchronizationContext.Current; // メインスレッドでcontextを設置 FirebaseDatabase.DefaultInstance.GetReference("users") .GetValueAsync().ContinueWith(task => { if (task.IsFaulted) { Debug.LogError("not found users"); } else if (task.IsCompleted) { DataSnapshot snapShot = task.Result; string json = snapShot.GetRawJsonValue(); Dictionary<string, User> dic = JsonConvert.DeserializeObject<Dictionary<string, User>>(json); users = new List<User>(); foreach (KeyValuePair<string, User> x in dic) { Debug.Log(x.Key + ": " + x.Value.text); users.Add(x.Value); } // メインスレッドへ戻す context.Post(d => { if (callbacks != null) { callbacks(ResponseType.Users, null); } }, null); } }); }
参考: unity/Csharp/コールバック [ショートカット]