TuTran21195 · radisktt · May 13, 2025
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
@@ -1,5 +1,6 @@
 plugins {
     alias(libs.plugins.android.application)
+    id("com.google.gms.google-services")
 }
 
 android {
@@ -62,6 +63,11 @@ dependencies {
     implementation("com.github.bumptech.glide:glide:4.16.0")
     annotationProcessor("com.github.bumptech.glide:compiler:4.16.0")
 
+    // Firebase
+    implementation(platform("com.google.firebase:firebase-bom:32.7.2"))
+    implementation("com.google.firebase:firebase-auth")
+    implementation("com.google.android.gms:play-services-auth:20.7.0")
+
     testImplementation(libs.junit)
     androidTestImplementation(libs.ext.junit)
     androidTestImplementation(libs.espresso.core)

diff --git a/app/google-services.json b/app/google-services.json
@@ -1,41 +1,144 @@
 {
   "project_info": {
-    "project_number": "396348569226",
-    "project_id": "to-do-app-49217",
-    "storage_bucket": "to-do-app-49217.firebasestorage.app"
+    "project_number": "767282860838",
+    "project_id": "to-do-1d14f",
+    "storage_bucket": "to-do-1d14f.firebasestorage.app"
   },
   "client": [
     {
       "client_info": {
-        "mobilesdk_app_id": "1:396348569226:android:1a57f94b687fdf83a21f73",
+        "mobilesdk_app_id": "1:767282860838:android:7414e6a2a5491489d6e7e7",
+        "android_client_info": {
+          "package_name": "com.example.login"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "767282860838-8kn6msc75sl7fc2qk6tbb79mnlacck98.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyC2uu3l_afXE62nLGJBlWZcJjMJqvSnKNw"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "767282860838-8kn6msc75sl7fc2qk6tbb79mnlacck98.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:767282860838:android:fc85b1d75558ae89d6e7e7",
+        "android_client_info": {
+          "package_name": "com.example.todoapp"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "767282860838-8n21vh7f2plpsjogn518lpam46usdcid.apps.googleusercontent.com",
+          "client_type": 1,
+          "android_info": {
+            "package_name": "com.example.todoapp",
+            "certificate_hash": "4bff53fcb2a58c2562df2312aab097de9f6715ae"
+          }
+        },
+        {
+          "client_id": "767282860838-8kn6msc75sl7fc2qk6tbb79mnlacck98.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyC2uu3l_afXE62nLGJBlWZcJjMJqvSnKNw"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "767282860838-8kn6msc75sl7fc2qk6tbb79mnlacck98.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:767282860838:android:ba1adf879e8432cfd6e7e7",
         "android_client_info": {
           "package_name": "com.example.todoappv2"
         }
       },
       "oauth_client": [
         {
-          "client_id": "396348569226-d3fd7d7s6tm4vl6ijfbpjt8gvbslrj9v.apps.googleusercontent.com",
+          "client_id": "767282860838-m9hb1tq84usudk3po63f34s5smo9jvgb.apps.googleusercontent.com",
           "client_type": 1,
           "android_info": {
             "package_name": "com.example.todoappv2",
-            "certificate_hash": "9c04ba4ed1a9957a60183031dde2beb7c8e39e75"
+            "certificate_hash": "4bff53fcb2a58c2562df2312aab097de9f6715ae"
+          }
+        },
+        {
+          "client_id": "767282860838-8kn6msc75sl7fc2qk6tbb79mnlacck98.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyC2uu3l_afXE62nLGJBlWZcJjMJqvSnKNw"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "767282860838-8kn6msc75sl7fc2qk6tbb79mnlacck98.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:767282860838:android:816f9590c5136c3bd6e7e7",
+        "android_client_info": {
+          "package_name": "com.example.ver1"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "767282860838-bc3drpltfpb14d7g7ec5fg94e8pa0jle.apps.googleusercontent.com",
+          "client_type": 1,
+          "android_info": {
+            "package_name": "com.example.ver1",
+            "certificate_hash": "4bff53fcb2a58c2562df2312aab097de9f6715ae"
           }
         },
         {
-          "client_id": "396348569226-sfsf7pftqp1p4bcpb57h9ilt50mbkdqb.apps.googleusercontent.com",
+          "client_id": "767282860838-8kn6msc75sl7fc2qk6tbb79mnlacck98.apps.googleusercontent.com",
           "client_type": 3
         }
       ],
       "api_key": [
         {
-          "current_key": "AIzaSyDtCC8nXM8q4RtDXRi7VbEzTc2I6UFSmrI"
+          "current_key": "AIzaSyC2uu3l_afXE62nLGJBlWZcJjMJqvSnKNw"
         }
       ],
       "services": {
         "appinvite_service": {
           "other_platform_oauth_client": [
             {
-              "client_id": "396348569226-sfsf7pftqp1p4bcpb57h9ilt50mbkdqb.apps.googleusercontent.com",
+              "client_id": "767282860838-8kn6msc75sl7fc2qk6tbb79mnlacck98.apps.googleusercontent.com",
               "client_type": 3
             }
           ]

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
@@ -20,15 +20,22 @@
         android:theme="@style/Theme.TodoAppV2"
         tools:targetApi="31">
         <activity
-            android:name=".MainActivity"
+            android:name=".LoginActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
 
+        <activity
+            android:name=".RegisterActivity"
+            android:exported="false" />
+
+        <activity
+            android:name=".MainActivity"
+            android:exported="false" />
+
         <activity
             android:name=".AddTodoActivity"
             android:exported="false"

diff --git a/app/src/main/java/com/example/todoappv2/LoginActivity.java b/app/src/main/java/com/example/todoappv2/LoginActivity.java
@@ -0,0 +1,151 @@
+package com.example.todoappv2;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+import android.widget.Toast;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.google.android.gms.auth.api.signin.GoogleSignIn;
+import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
+import com.google.android.gms.auth.api.signin.GoogleSignInClient;
+import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
+import com.google.android.gms.common.api.ApiException;
+import com.google.android.gms.tasks.Task;
+import com.google.android.material.button.MaterialButton;
+import com.google.android.material.textfield.TextInputEditText;
+import com.google.firebase.auth.AuthCredential;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.auth.FirebaseUser;
+import com.google.firebase.auth.GoogleAuthProvider;
+
+public class LoginActivity extends AppCompatActivity {
+    private static final String TAG = "LoginActivity";
+    private static final int RC_SIGN_IN = 9001;
+
+    private TextInputEditText emailEditText, passwordEditText;
+    private MaterialButton loginButton, googleLoginButton;
+    private FirebaseAuth mAuth;
+    private GoogleSignInClient mGoogleSignInClient;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_login);
+
+        mAuth = FirebaseAuth.getInstance();
+
+        // Initialize views
+        emailEditText = findViewById(R.id.emailEditText);
+        passwordEditText = findViewById(R.id.passwordEditText);
+        loginButton = findViewById(R.id.loginButton);
+        googleLoginButton = findViewById(R.id.googleLoginButton);
+
+        // Get data from RegisterActivity if any
+        Intent intent = getIntent();
+        String passedEmail = intent.getStringExtra("username");
+        String passedPassword = intent.getStringExtra("password");
+
+        if (passedEmail != null) {
+            emailEditText.setText(passedEmail);
+        }
+        if (passedPassword != null) {
+            passwordEditText.setText(passedPassword);
+        }
+
+        // Email/Password login
+        loginButton.setOnClickListener(v -> {
+            String email = emailEditText.getText().toString().trim();
+            String password = passwordEditText.getText().toString().trim();
+
+            if (email.isEmpty() || password.isEmpty()) {
+                Toast.makeText(this, "Email và mật khẩu không được để trống", Toast.LENGTH_SHORT).show();
+                return;
+            }
+
+            mAuth.signInWithEmailAndPassword(email, password)
+                    .addOnCompleteListener(task -> {
+                        if (task.isSuccessful()) {
+                            Toast.makeText(this, "Đăng nhập thành công!", Toast.LENGTH_SHORT).show();
+                            startActivity(new Intent(this, MainActivity.class));
+                            finish();
+                        } else {
+                            Toast.makeText(this, "Đăng nhập thất bại: " + task.getException().getMessage(), Toast.LENGTH_SHORT).show();
+                        }
+                    });
+        });
+
+        // Register navigation
+        findViewById(R.id.goToRegister).setOnClickListener(v -> {
+            startActivity(new Intent(this, RegisterActivity.class));
+        });
+
+        // Configure Google Sign-In
+        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
+                .requestIdToken(getString(R.string.default_web_client_id))
+                .requestEmail()
+                .build();
+
+        mGoogleSignInClient = GoogleSignIn.getClient(this, gso);
+
+        // Google Sign-In button
+        googleLoginButton.setOnClickListener(v -> signInWithGoogle());
+    }
+
+    private void signInWithGoogle() {
+        mGoogleSignInClient.signOut().addOnCompleteListener(this, task -> {
+            Intent signInIntent = mGoogleSignInClient.getSignInIntent();
+            startActivityForResult(signInIntent, RC_SIGN_IN);
+        });
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (requestCode == RC_SIGN_IN) {
+            Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
+            try {
+                GoogleSignInAccount account = task.getResult(ApiException.class);
+                String idToken = account.getIdToken();
+                if (idToken != null) {
+                    firebaseAuthWithGoogle(idToken);
+                } else {
+                    Toast.makeText(this, "Không lấy được ID token", Toast.LENGTH_SHORT).show();
+                }
+            } catch (ApiException e) {
+                Log.e(TAG, "Đăng nhập Google thất bại", e);
+                Toast.makeText(this, "Đăng nhập Google thất bại: " + e.getMessage(), Toast.LENGTH_SHORT).show();
+            }
+        }
+    }
+
+    private void firebaseAuthWithGoogle(String idToken) {
+        AuthCredential credential = GoogleAuthProvider.getCredential(idToken, null);
+        mAuth.signInWithCredential(credential)
+                .addOnCompleteListener(this, task -> {
+                    if (task.isSuccessful()) {
+                        FirebaseUser user = mAuth.getCurrentUser();
+                        Toast.makeText(this, "Đăng nhập thành công: " + user.getDisplayName(), Toast.LENGTH_SHORT).show();
+                        startActivity(new Intent(this, MainActivity.class));
+                        finish();
+                    } else {
+                        Log.e(TAG, "Firebase Auth thất bại", task.getException());
+                        Toast.makeText(this, "Xác thực Firebase thất bại", Toast.LENGTH_SHORT).show();
+                    }
+                });
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+        // Check if user is signed in
+        FirebaseUser currentUser = mAuth.getCurrentUser();
+        if (currentUser != null) {
+            startActivity(new Intent(this, MainActivity.class));
+            finish();
+        }
+    }
+}