完善登陆UI数据管理

app/src/main/java/com/community/pocket/data/login/LoginDataSource.java

@@ -1,30 +0,0 @@
-package com.community.pocket.data.login;
-
-import com.community.pocket.data.model.LoggedInUser;
-
-import java.io.IOException;
-
-/**
- * Class that handles authentication w/ login credentials and retrieves user information.
- * 该类处理身份验证w/登录凭据并检索用户信息。
- */
-public class LoginDataSource {
-
-    public Result<LoggedInUser> login(String username, String password) {
-
-        try {
-            // TODO: handle loggedInUser authentication
-            LoggedInUser fakeUser =
-                    new LoggedInUser(
-                            java.util.UUID.randomUUID().toString(),
-                            "Jane Doe");
-            return new Result.Success<>(fakeUser);
-        } catch (Exception e) {
-            return new Result.Error<>(new IOException("Error logging in", e), LoggedInUser.class);
-        }
-    }
-
-    void logout() {
-        // TODO: revoke authentication
-    }
-}

app/src/main/java/com/community/pocket/data/login/LoginRepository.java

@@ -1,56 +0,0 @@
-package com.community.pocket.data.login;
-
-import com.community.pocket.data.model.LoggedInUser;
-
-/**
- * Class that requests authentication and user information from the remote data source and
- * maintains an in-memory cache of login status and user credentials information.
- *  该类请求来自远程数据源的身份验证和用户信息
- *  在内存中保存登录状态和用户凭证信息。
- */
-public class LoginRepository {
-
-    private static volatile LoginRepository instance;
-
-    private LoginDataSource dataSource;
-
-    // If user credentials will be cached in local storage, it is recommended it be encrypted
-    // @see https://developer.android.com/training/articles/keystore
-    private LoggedInUser user = null;
-
-    // private constructor : singleton access
-    private LoginRepository(LoginDataSource dataSource) {
-        this.dataSource = dataSource;
-    }
-
-    public static LoginRepository getInstance(LoginDataSource dataSource) {
-        if (instance == null) {
-            instance = new LoginRepository(dataSource);
-        }
-        return instance;
-    }
-
-    public boolean isLoggedIn() {
-        return user != null;
-    }
-
-    public void logout() {
-        user = null;
-        dataSource.logout();
-    }
-
-    private void setLoggedInUser(LoggedInUser user) {
-        this.user = user;
-        // If user credentials will be cached in local storage, it is recommended it be encrypted
-        // @see https://developer.android.com/training/articles/keystore
-    }
-
-    public Result<LoggedInUser> login(String username, String password) {
-        // handle login
-        Result<LoggedInUser> result = dataSource.login(username, password);
-        if (result instanceof Result.Success) {
-            setLoggedInUser(((Result.Success<LoggedInUser>) result).getData());
-        }
-        return result;
-    }
-}

app/src/main/java/com/community/pocket/data/login/LoginRequest.java

@@ -0,0 +1,35 @@
+package com.community.pocket.data.login;
+
+
+import com.community.pocket.R;
+import com.community.pocket.data.model.Token;
+import com.community.pocket.ui.login.LoginResponse;
+
+/**
+ * 登陆请求接口
+ * TODO 完善逻辑
+ */
+public class LoginRequest {
+    private static volatile LoginRequest instance;
+
+    private LoginRequest() {
+    }
+
+    public static LoginRequest getInstance() {
+        if (instance == null) {
+            instance = new LoginRequest();
+        }
+        return instance;
+    }
+
+    public LoginResponse login(String username, String password) {
+        Token token = new Token();
+        token.setTime(System.currentTimeMillis());
+        token.setToken("123");
+
+        LoginResponse loginResponse = new LoginResponse();
+        loginResponse.setSuccess(R.string.login_ok, username);
+        loginResponse.setBody(token);
+        return loginResponse;
+    }
+}

app/src/main/java/com/community/pocket/data/login/Result.java

@@ -1,58 +0,0 @@
-package com.community.pocket.data.login;
-
-import org.jetbrains.annotations.NotNull;
-
-/**
- * A generic class that holds a result success w/ data or an error exception.
- * 一个泛型类，它持有一个结果成功w/数据或一个错误异常。
- */
-public class Result<T> {
-    // hide the private constructor to limit subclass types (Success, Error)
-    private Result() {
-    }
-
-    @NotNull
-    @Override
-    public String toString() {
-        if (this instanceof Result.Success) {
-            Result.Success success = (Result.Success) this;
-            return "Success[data=" + success.getData().toString() + "]";
-        } else if (this instanceof Result.Error) {
-            Result.Error error = (Result.Error) this;
-            return "Error[exception=" + error.getError().toString() + "]";
-        }
-        return "";
-    }
-
-    // Success sub-class
-    public final static class Success<T> extends Result<T> {
-        private T data;
-
-        Success(T data) {
-            this.data = data;
-        }
-
-        public T getData() {
-            return this.data;
-        }
-    }
-
-    // Error sub-class
-    final static class Error<T> extends Result<T> {
-        private Exception error;
-        private Class<T> c;
-
-        Error(Exception error, Class<T> c) {
-            this.error = error;
-            this.c = c;
-        }
-
-        Exception getError() {
-            return this.error;
-        }
-
-        public Class<T> getC() {
-            return c;
-        }
-    }
-}

app/src/main/java/com/community/pocket/data/model/Token.java

@@ -0,0 +1,26 @@
+package com.community.pocket.data.model;
+
+/**
+ * 登陆令牌
+ */
+public class Token {
+    private String token;
+
+    private long time;
+
+    public String getToken() {
+        return token;
+    }
+
+    public void setToken(String token) {
+        this.token = token;
+    }
+
+    public long getTime() {
+        return time;
+    }
+
+    public void setTime(long time) {
+        this.time = time;
+    }
+}

app/src/main/java/com/community/pocket/ui/login/LoginActivity.java

@@ -14,7 +14,6 @@ import android.widget.Toast;
 
 import androidx.annotation.Nullable;
 import androidx.annotation.RequiresApi;
-import androidx.annotation.StringRes;
 import androidx.lifecycle.Observer;
 import androidx.lifecycle.ViewModelProvider;
 
@@ -59,7 +58,7 @@ public class LoginActivity extends BaseActivity {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        loginViewModel = new ViewModelProvider(this, new LoginViewModelFactory()).get(LoginViewModel.class);
+        loginViewModel = new ViewModelProvider(this, new ViewModelProvider.NewInstanceFactory()).get(LoginViewModel.class);
 
         //监听数据校验状态
         loginViewModel.getLoginFormState().observe(this, new Observer<LoginFormState>() {
@@ -79,18 +78,19 @@ public class LoginActivity extends BaseActivity {
         });
 
         //监听登陆请求结果
-        loginViewModel.getLoginResult().observe(this, new Observer<LoginResult>() {
+        loginViewModel.getLoginResult().observe(this, new Observer<LoginResponse>() {
             @Override
-            public void onChanged(@Nullable LoginResult loginResult) {
-                if (loginResult == null) {
+            public void onChanged(@Nullable LoginResponse loginResponse) {
+                if (loginResponse == null) {
                     return;
                 }
                 loadingProgressBar.setVisibility(View.GONE);
-                if (loginResult.getError() != null) {
-                    showLoginFailed(loginResult.getError());
+
+                if (loginResponse.getError() != null) {
+                    Toast.makeText(getApplicationContext(), loginResponse.fail(getApplicationContext()), Toast.LENGTH_SHORT).show();
                 }
-                if (loginResult.getSuccess() != null) {
-                    updateUiWithUser(loginResult.getSuccess());
+                if (loginResponse.getSuccess() != null) {
+                    Toast.makeText(getApplicationContext(), loginResponse.ok(getApplicationContext()), Toast.LENGTH_SHORT).show();
                 }
                 setResult(Activity.RESULT_OK);
 
@@ -136,16 +136,4 @@ public class LoginActivity extends BaseActivity {
         startActivity(new Intent(this, ResetPwdActivity.class));
     }
 
-    //登陆成功信息
-    private void updateUiWithUser(LoggedInUserView model) {
-        String welcome = getString(R.string.welcome) + model.getDisplayName();
-        // TODO : initiate successful logged in experience
-        Toast.makeText(getApplicationContext(), welcome, Toast.LENGTH_LONG).show();
-    }
-
-    //登陆错误信息
-    private void showLoginFailed(@StringRes Integer errorString) {
-        Toast.makeText(getApplicationContext(), errorString, Toast.LENGTH_SHORT).show();
-    }
-
 }

app/src/main/java/com/community/pocket/ui/login/LoginResponse.java

@@ -0,0 +1,11 @@
+package com.community.pocket.ui.login;
+
+import com.community.pocket.data.model.Token;
+import com.community.pocket.ui.main.ui.share.Response;
+
+/**
+ * 登陆响应结果
+ */
+public class LoginResponse extends Response<Token> {
+
+}

app/src/main/java/com/community/pocket/ui/login/LoginResult.java

@@ -1,32 +0,0 @@
-package com.community.pocket.ui.login;
-
-import androidx.annotation.Nullable;
-
-/**
- * Authentication result : success (user details) or error message.
- * 验证结果:成功(用户详细信息)或错误消息。
- */
-class LoginResult {
-    @Nullable
-    private LoggedInUserView success;
-    @Nullable
-    private Integer error;
-
-    LoginResult(@Nullable Integer error) {
-        this.error = error;
-    }
-
-    LoginResult(@Nullable LoggedInUserView success) {
-        this.success = success;
-    }
-
-    @Nullable
-    LoggedInUserView getSuccess() {
-        return success;
-    }
-
-    @Nullable
-    Integer getError() {
-        return error;
-    }
-}

app/src/main/java/com/community/pocket/ui/login/LoginViewModel.java

@@ -2,49 +2,34 @@ package com.community.pocket.ui.login;
 
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
 
 import com.community.pocket.R;
-import com.community.pocket.data.login.LoginRepository;
-import com.community.pocket.data.login.Result;
-import com.community.pocket.data.model.LoggedInUser;
+import com.community.pocket.data.login.LoginRequest;
+import com.community.pocket.ui.main.ui.share.BaseViewModel;
 import com.community.pocket.util.ValidUtil;
 
 /**
  * 管理 登陆UI 相关数据
  */
-public class LoginViewModel extends ViewModel {
+public class LoginViewModel extends BaseViewModel<LoginRequest> {
 
     //登陆表单校验信息
     private MutableLiveData<LoginFormState> loginFormState = new MutableLiveData<>();
     //登陆结果
-    private MutableLiveData<LoginResult> loginResult = new MutableLiveData<>();
-    //登陆请求数据源
-    private LoginRepository loginRepository;
-
-    LoginViewModel(LoginRepository loginRepository) {
-        this.loginRepository = loginRepository;
-    }
+    private MutableLiveData<LoginResponse> loginResult = new MutableLiveData<>();
 
     LiveData<LoginFormState> getLoginFormState() {
         return loginFormState;
     }
 
-    LiveData<LoginResult> getLoginResult() {
+    LiveData<LoginResponse> getLoginResult() {
         return loginResult;
     }
 
     //登陆
     public void login(String username, String password) {
-        // can be launched in a separate asynchronous job
-        Result<LoggedInUser> result = loginRepository.login(username, password);
-
-        if (result instanceof Result.Success) {
-            LoggedInUser data = ((Result.Success<LoggedInUser>) result).getData();
-            loginResult.setValue(new LoginResult(new LoggedInUserView(data.getDisplayName())));
-        } else {
-            loginResult.setValue(new LoginResult(R.string.login_failed));
-        }
+        LoginResponse response = getRequest().login(username, password);
+        loginResult.setValue(response);
     }
 
     //登陆表单数据变化触发数据校验
@@ -57,4 +42,9 @@ public class LoginViewModel extends ViewModel {
             loginFormState.setValue(new LoginFormState(true));
         }
     }
+
+    @Override
+    protected LoginRequest getRequest() {
+        return LoginRequest.getInstance();
+    }
 }

app/src/main/java/com/community/pocket/ui/login/LoginViewModelFactory.java

@@ -1,28 +0,0 @@
-package com.community.pocket.ui.login;
-
-import androidx.annotation.NonNull;
-import androidx.lifecycle.ViewModel;
-import androidx.lifecycle.ViewModelProvider;
-
-import com.community.pocket.data.login.LoginDataSource;
-import com.community.pocket.data.login.LoginRepository;
-
-/**
- * ViewModel provider factory to instantiate LoginViewModel.
- * Required given LoginViewModel has a non-empty constructor
- * ViewModel提供程序工厂来实例化LoginViewModel。
- * 给定的LoginViewModel有一个非空的构造函数
- */
-public class LoginViewModelFactory implements ViewModelProvider.Factory {
-
-    @NonNull
-    @Override
-    @SuppressWarnings("unchecked")
-    public <T extends ViewModel> T create(@NonNull Class<T> modelClass) {
-        if (modelClass.isAssignableFrom(LoginViewModel.class)) {
-            return (T) new LoginViewModel(LoginRepository.getInstance(new LoginDataSource()));
-        } else {
-            throw new IllegalArgumentException("Unknown ViewModel class");
-        }
-    }
-}

app/src/main/java/com/community/pocket/ui/main/ui/share/Response.java

@@ -1,5 +1,7 @@
 package com.community.pocket.ui.main.ui.share;
 
+import android.content.Context;
+
 import androidx.annotation.Nullable;
 
 /**
@@ -14,6 +16,8 @@ public abstract class Response<T> {
     //失败描述
     @Nullable
     private Integer error;
+
+    private Object[] args;
     //响应体
     private T body;
 
@@ -22,8 +26,9 @@ public abstract class Response<T> {
         return success;
     }
 
-    public void setSuccess(@Nullable Integer success) {
+    public void setSuccess(@Nullable Integer success, Object... args) {
         this.success = success;
+        this.args = args;
     }
 
     @Nullable
@@ -31,8 +36,9 @@ public abstract class Response<T> {
         return error;
     }
 
-    public void setError(@Nullable Integer error) {
+    public void setError(@Nullable Integer error, Object... args) {
         this.error = error;
+        this.args = args;
     }
 
     public T getBody() {
@@ -42,4 +48,26 @@ public abstract class Response<T> {
     public void setBody(T body) {
         this.body = body;
     }
+
+    public String ok(Context context) {
+        if (success != null) {
+            return context.getString(success, args);
+        }
+        return null;
+    }
+
+    public String fail(Context context) {
+        if (error != null) {
+            return context.getString(error, args);
+        }
+        return null;
+    }
+
+    public Object[] getArgs() {
+        return args;
+    }
+
+    public void setArgs(Object[] args) {
+        this.args = args;
+    }
 }

app/src/main/res/values-en-rUS/strings.xml

@@ -151,4 +151,5 @@
     <string name="load_visitor_my_fail">load my visitor fail</string>
     <string name="load_visitor_reservation_ok">load reservation success</string>
     <string name="load_visitor_reservation_fail">load reservation fail</string>
+    <string name="login_ok">Welcome the %1s to log in this system</string>
 </resources>

app/src/main/res/values-zh-rCN/strings.xml

@@ -151,4 +151,5 @@
     <string name="load_visitor_my_fail">加载我的访客失败</string>
     <string name="load_visitor_reservation_ok">加载我的预约成功</string>
     <string name="load_visitor_reservation_fail">加载我的预约失败</string>
+    <string name="login_ok">欢迎用户%1s登陆口袋社区</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -152,6 +152,7 @@
     <string name="load_visitor_my_fail">load my visitor fail</string>
     <string name="load_visitor_reservation_ok">load reservation success</string>
     <string name="load_visitor_reservation_fail">load reservation fail</string>
+    <string name="login_ok">Welcome the %1s to log in this system</string>
     <!-- Strings used for fragments for navigation -->
 
     <!-- Strings used for fragments for navigation -->