Video Calling App

LoginActivity.java

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+package com.example.connect;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.google.android.gms.tasks.OnCompleteListener;
+import com.google.android.gms.tasks.Task;
+import com.google.firebase.auth.AuthResult;
+import com.google.firebase.auth.FirebaseAuth;
+
+public class LoginActivity extends AppCompatActivity {
+    FirebaseAuth auth;
+    TextView email , password;
+    Button login, signup;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_login);
+
+        auth=FirebaseAuth.getInstance();
+
+        email = findViewById(R.id.email);
+        password = findViewById(R.id.password);
+        login = findViewById(R.id.button);
+        signup = findViewById(R.id.button2);
+
+        login.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String Email,Password;
+                Email = email.getText().toString();
+                Password = password.getText().toString();
+
+                auth.signInWithEmailAndPassword(Email,Password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
+                    @Override
+                    public void onComplete(@NonNull Task<AuthResult> task) {
+                         if(task.isSuccessful()){
+                             Toast.makeText(LoginActivity.this, "logged in", Toast.LENGTH_SHORT).show();
+                         }
+                         else{
+                             Toast.makeText(LoginActivity.this,task.getException().getLocalizedMessage(), Toast.LENGTH_SHORT).show();
+                         }
+                    }
+                });
+            }
+        });
+
+        signup.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                startActivity(new Intent(LoginActivity.this , SignupActivity.class));
+            }
+        });
+    }
+}

MainActivity.java

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+package com.example.connect;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        new Handler().postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                startActivity(new Intent(MainActivity.this, LoginActivity.class));
+            }
+
+        }, 2000);
+    }
+}

SignupActivity.java

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+package com.example.connect;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.google.android.gms.tasks.OnCompleteListener;
+import com.google.android.gms.tasks.OnSuccessListener;
+import com.google.android.gms.tasks.Task;
+import com.google.firebase.FirebaseApp;
+import com.google.firebase.auth.AuthResult;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.firestore.FirebaseFirestore;
+
+public class SignupActivity extends AppCompatActivity {
+    FirebaseAuth auth;
+
+    TextView email , password , name;
+    Button login, signup;
+    FirebaseFirestore database;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_signup);
+        database = FirebaseFirestore.getInstance();
+        auth = FirebaseAuth.getInstance();
+
+        email = findViewById(R.id.email);
+        password = findViewById(R.id.password);
+        login = findViewById(R.id.button);
+        signup = findViewById(R.id.button2);
+        name = findViewById(R.id.Name);
+
+        signup.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String Email,Password,Name;
+                Email = email.getText().toString();
+                Password = password.getText().toString();
+                Name = name.getText().toString();
+
+                User user = new User();
+
+                user.setEmail(Email);
+                user.setName(Name);
+                user.setPassword(Password);
+
+                auth.createUserWithEmailAndPassword(Email,Password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
+                    @Override
+                    public void onComplete(@NonNull Task<AuthResult> task) {
+                        if(task.isSuccessful()){
+                            database.collection("Users").document().set(user).addOnSuccessListener(new OnSuccessListener<Void>() {
+                                @Override
+                                public void onSuccess(Void aVoid) {
+                                    startActivity(new Intent(SignupActivity.this,LoginActivity.class));
+                                }
+                            });
+                            Toast.makeText(SignupActivity.this, "Account is Created", Toast.LENGTH_SHORT).show();
+                        }
+                        else{
+                            Toast.makeText(SignupActivity.this,task.getException().getLocalizedMessage(), Toast.LENGTH_SHORT).show();
+                        }
+                    }
+                });
+            }
+        });
+    }
+}

User.java

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+package com.example.connect;
+
+public class User {
+    private String Email,Password,Name;
+
+    public User(){
+
+    }
+    public String getEmail() {
+        return Email;
+    }
+
+    public void setEmail(String email) {
+        Email = email;
+    }
+
+    public String getPassword() {
+        return Password;
+    }
+
+    public void setPassword(String password) {
+        Password = password;
+    }
+
+    public String getName() {
+        return Name;
+    }
+
+    public void setName(String name) {
+        Name = name;
+    }
+}