Идет фиг знает какой день написания курсача, мне уже надоело. По скорее бы это закончилось

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/build.gradle

@@ -26,6 +26,8 @@ dependencies {
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
 
     //noinspection GradleCompatible
+    implementation 'com.android.support:appcompat-v7:21.0.+'
+    //noinspection GradleCompatible
     implementation 'com.android.support:support-v4:27.1.1'
     //noinspection GradleCompatible
     implementation 'com.android.support:design:27.1.1'
@@ -34,13 +36,16 @@ dependencies {
     implementation 'com.google.firebase:firebase-auth:16.0.2'
     implementation 'com.google.firebase:firebase-database:16.0.1'
     implementation 'com.google.firebase:firebase-core:16.0.1'
+    implementation 'com.google.firebase:firebase-storage:16.0.1'
     implementation 'com.rengwuxian.materialedittext:library:2.1.4'
     implementation 'de.hdodenhof:circleimageview:2.2.0'
+    implementation 'com.github.bumptech.glide:glide:4.8.0'
     implementation 'com.xwray:groupie:2.1.0'
     implementation 'com.squareup.picasso:picasso:2.71828'
     implementation 'androidx.recyclerview:recyclerview:1.1.0'
 
 
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

app/src/main/AndroidManifest.xml

@@ -9,9 +9,11 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".LoginActivity"></activity>
+        <activity android:name=".LoginActivity"
+            android:parentActivityName=".RegisterActivity"></activity>
         <activity android:name=".MainActivity" />
-        <activity android:name=".RegisterActivity"></activity>
+        <activity android:name=".RegisterActivity"
+            android:parentActivityName=".LoginActivity"></activity>
         <activity android:name=".StartActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/com/example/chatapp/LoginActivity.java

@@ -30,6 +30,11 @@ public class LoginActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_login);
 
+        Toolbar toolbar = findViewById(R.id.toolbarLogin);
+        setSupportActionBar(toolbar);
+        getSupportActionBar().setTitle("Authorization");
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
         firebaseAuth = FirebaseAuth.getInstance();
 
         emailInput = findViewById(R.id.emailInputLogin);

app/src/main/java/com/example/chatapp/MainActivity.java

@@ -1,14 +1,135 @@
 package com.example.chatapp;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentPagerAdapter;
+import androidx.viewpager.widget.ViewPager;
 
+import android.content.Intent;
 import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.TextView;
+
+import com.bumptech.glide.Glide;
+import com.example.chatapp.model.User;
+import com.google.android.material.tabs.TabLayout;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.auth.FirebaseUser;
+import com.google.firebase.database.DataSnapshot;
+import com.google.firebase.database.DatabaseError;
+import com.google.firebase.database.DatabaseReference;
+import com.google.firebase.database.FirebaseDatabase;
+import com.google.firebase.database.ValueEventListener;
+import com.squareup.picasso.Picasso;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import de.hdodenhof.circleimageview.CircleImageView;
 
 public class MainActivity extends AppCompatActivity {
 
+    private CircleImageView imageProfileOutput;
+    private TextView usernameOutput;
+    private TabLayout tabLayout;
+    private ViewPager viewPager;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        Toolbar toolbar = findViewById(R.id.toolbarMain);
+        setSupportActionBar(toolbar);
+        getSupportActionBar().setTitle("");
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+        fetchCurrentUser();
+
+        imageProfileOutput = findViewById(R.id.titleCircleImageViewMain);
+        usernameOutput = findViewById(R.id.titleRegistrationMain);
+
+        tabLayout = findViewById(R.id.tabLayout);
+        viewPager = findViewById(R.id.viewPager);
+
+        ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
+    }
+
+    private void fetchCurrentUser() {
+        String uid = FirebaseAuth.getInstance().getUid();
+        DatabaseReference ref = FirebaseDatabase.getInstance().getReference("/Users/" + uid);
+        ref.addListenerForSingleValueEvent(new ValueEventListener() {
+            @Override
+            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
+                User user = dataSnapshot.getValue(User.class);
+                usernameOutput.setText(user.getUsername());
+                Picasso.get().load(user.getImageURL()).into(imageProfileOutput);
+//                if (user.getImageURL().equals("default")) {
+//                    imageProfileOutput.setImageResource(R.mipmap.ic_launcher);
+//                } else {
+//                    Glide.with(getApplicationContext()).load(user.getImageURL()).into(imageProfileOutput);
+//                }
+            }
+
+            @Override
+            public void onCancelled(@NonNull DatabaseError databaseError) {
+
+            }
+        });
+
+
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.menu, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.logout:
+                FirebaseAuth.getInstance().signOut();
+                startActivity(new Intent(getApplicationContext(), LoginActivity.class));
+                finish();
+                return true;
+        }
+
+        return false;
+    }
+
+    class ViewPagerAdapter extends FragmentPagerAdapter {
+
+        private ArrayList<Fragment> fragments;
+        private ArrayList<String> titles;
+
+        ViewPagerAdapter(FragmentManager fm) {
+            super(fm);
+            this.fragments = new ArrayList<>();
+            this.titles = new ArrayList<>();
+        }
+
+        @NonNull
+        @Override
+        public Fragment getItem(int position) {
+            return fragments.get(position);
+        }
+
+        @Override
+        public int getCount() {
+            return fragments.size();
+        }
+
+        @Nullable
+        @Override
+        public CharSequence getPageTitle(int position) {
+            return titles.get(position);
+        }
     }
 }

app/src/main/java/com/example/chatapp/RegisterActivity.java

@@ -1,7 +1,11 @@
 package com.example.chatapp;
 
+import android.app.Activity;
 import android.content.Intent;
+import android.graphics.Bitmap;
+import android.net.Uri;
 import android.os.Bundle;
+import android.provider.MediaStore;
 import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
@@ -9,25 +13,37 @@ import android.widget.TextView;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
 
+import com.example.chatapp.model.User;
 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.auth.AuthResult;
 import com.google.firebase.auth.FirebaseAuth;
 import com.google.firebase.auth.FirebaseUser;
 import com.google.firebase.database.DatabaseReference;
 import com.google.firebase.database.FirebaseDatabase;
+import com.google.firebase.storage.FirebaseStorage;
+import com.google.firebase.storage.StorageReference;
+import com.google.firebase.storage.UploadTask;
 
+import java.io.IOException;
 import java.util.HashMap;
+import java.util.UUID;
+
+import de.hdodenhof.circleimageview.CircleImageView;
 
 public class RegisterActivity extends AppCompatActivity {
 
-    private Button registerButton;
+    private Button registerButton, selectPhotoButton;
     private TextView signInButton;
     private EditText usernameInput;
     private EditText emailInput;
     private EditText passwordInput;
+    private CircleImageView photoProfileRegUser;
 
     private FirebaseAuth firebaseAuth;
     private DatabaseReference reference;
@@ -37,6 +53,23 @@ public class RegisterActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_register);
 
+        Toolbar toolbar = findViewById(R.id.toolbarRegistration);
+        setSupportActionBar(toolbar);
+        getSupportActionBar().setTitle("Registration");
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+        photoProfileRegUser = findViewById(R.id.selectPhotoImageViewRegister);
+
+        selectPhotoButton = findViewById(R.id.selectPhotoButton);
+        selectPhotoButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(Intent.ACTION_PICK);
+                intent.setType("image/");
+                startActivityForResult(intent, 0);
+            }
+        });
+
         firebaseAuth = FirebaseAuth.getInstance();
 
         usernameInput = findViewById(R.id.usernameInputRegister);
@@ -47,7 +80,7 @@ public class RegisterActivity extends AppCompatActivity {
         registerButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                registration(usernameInput.getText().toString(), emailInput.getText().toString(), passwordInput.getText().toString());
+                performRegister(usernameInput.getText().toString(), emailInput.getText().toString(), passwordInput.getText().toString());
             }
         });
 
@@ -61,49 +94,88 @@ public class RegisterActivity extends AppCompatActivity {
         });
     }
 
+    private Uri selectedPhotoUri = null;
 
-    // method for registration new user - add user in database
-    private void registration(final String username, String email, String password) {
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (requestCode == 0 && resultCode == Activity.RESULT_OK && data != null) {
+            selectedPhotoUri = data.getData();
+            try {
+                Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), selectedPhotoUri);
+                photoProfileRegUser.setImageBitmap(bitmap);
+                selectPhotoButton.setAlpha(0f);
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
 
+    // method for registration new user - add user in database
+    private void performRegister(final String username, String email, String password) {
         if (username.equals("") || email.equals("") || password.equals("")) {
             Toast.makeText(this, "Empty field", Toast.LENGTH_SHORT).show();
         } else if (password.length() < 6) {
             Toast.makeText(this, "Password shorter than 6 characters", Toast.LENGTH_SHORT).show();
-        } else {
-            firebaseAuth.createUserWithEmailAndPassword(email, password)
-                    .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
-                        @Override
-                        public void onComplete(@NonNull Task<AuthResult> task) {
-                            if (task.isSuccessful()) {
-                                FirebaseUser firebaseUser = firebaseAuth.getCurrentUser();
-                                String userId = firebaseUser.getUid();
-
-                                // get reference for add new user
-                                reference = FirebaseDatabase.getInstance().getReference("Users").child(userId);
-
-                                HashMap<String, String> hashMap = new HashMap<>();
-                                hashMap.put("id", userId);
-                                hashMap.put("username", username);
-                                hashMap.put("imageUrl", "default");
-
-                                // set new user in database
-                                reference.setValue(hashMap).addOnCompleteListener(new OnCompleteListener<Void>() {
-                                    @Override
-                                    public void onComplete(@NonNull Task<Void> task) {
-                                        if (task.isSuccessful()) {
-                                            Toast.makeText(RegisterActivity.this, "Welcome", Toast.LENGTH_SHORT).show();
-                                            Intent intent = new Intent(getApplicationContext(), MainActivity.class);
-                                            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
-                                            startActivity(intent);
-                                            finish();
-                                        }
-                                    }
-                                });
-                            } else {
-                                Toast.makeText(RegisterActivity.this, "You can`t register with this email or password", Toast.LENGTH_SHORT).show();
-                            }
-                        }
-                    });
+            return;
         }
+
+        firebaseAuth.createUserWithEmailAndPassword(email, password)
+                .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
+                    @Override
+                    public void onComplete(@NonNull Task<AuthResult> task) {
+                        if (task.isSuccessful()) {
+
+                            Toast.makeText(RegisterActivity.this, "Successfully created user", Toast.LENGTH_LONG).show();
+                            uploadImageToFirebaseStorage(username);
+
+                        } else {
+                            Toast.makeText(RegisterActivity.this, "You can`t register with this email or password", Toast.LENGTH_SHORT).show();
+                        }
+                    }
+                });
+
+    }
+
+    private void uploadImageToFirebaseStorage(final String username) {
+        if (selectedPhotoUri == null) return;
+
+        String fileName = UUID.randomUUID().toString();
+        final StorageReference ref = FirebaseStorage.getInstance().getReference("/images/" + fileName);
+        ref.putFile(selectedPhotoUri)
+                .addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
+                    @Override
+                    public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
+                        ref.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
+                            @Override
+                            public void onSuccess(Uri uri) {
+                                saveUserToFirebaseDatabase(uri.toString(), username);
+                            }
+                        });
+                    }
+                });
+    }
+
+    private void saveUserToFirebaseDatabase(String profileImageUrl, String username) {
+        String uid = firebaseAuth.getUid();
+
+        // get reference for add new user
+        reference = FirebaseDatabase.getInstance().getReference("Users/" + uid);
+
+        User user = new User(uid, username, profileImageUrl);
+
+        // set new user in database
+        reference.setValue(user)
+                .addOnSuccessListener(new OnSuccessListener<Void>() {
+                    @Override
+                    public void onSuccess(Void aVoid) {
+                        Toast.makeText(RegisterActivity.this, "Welcome", Toast.LENGTH_SHORT).show();
+                        Intent intent = new Intent(getApplicationContext(), MainActivity.class);
+                        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
+                        startActivity(intent);
+                        finish();
+                    }
+                });
     }
 }

app/src/main/java/com/example/chatapp/StartActivity.java

@@ -1,13 +1,33 @@
 package com.example.chatapp;
 
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.PersistableBundle;
+
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.auth.FirebaseUser;
 
 public class StartActivity extends AppCompatActivity {
 
+    FirebaseUser firebaseUser;
+
+    @Override
+    public void onStart() {
+        super.onStart();
+
+        firebaseUser = FirebaseAuth.getInstance().getCurrentUser();
+
+        if (firebaseUser != null) {
+            Intent intent = new Intent(StartActivity.this, LoginActivity.class);
+            startActivity(intent);
+            finish();
+        }
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

app/src/main/java/com/example/chatapp/fragments/ChatsFragment.java

@@ -0,0 +1,22 @@
+package com.example.chatapp.fragments;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.fragment.app.Fragment;
+
+import com.example.chatapp.R;
+
+
+public class ChatsFragment extends Fragment {
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_chats, container, false);
+    }
+
+}

app/src/main/java/com/example/chatapp/model/User.java

@@ -0,0 +1,42 @@
+package com.example.chatapp.model;
+
+public class User {
+
+    private String id;
+    private String username;
+    private String imageURL;
+
+    public User(String id, String username, String imageURL) {
+        this.id = id;
+        this.username = username;
+        this.imageURL = imageURL;
+    }
+
+    public User() {
+
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getImageURL() {
+        return imageURL;
+    }
+
+    public void setImageURL(String imageURL) {
+        this.imageURL = imageURL;
+    }
+}

app/src/main/res/drawable/rounded_select_photo_button.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/holo_red_light"/>
+    <corners android:radius="75dp"/>
+</shape>

app/src/main/res/layout/activity_login.xml

@@ -4,33 +4,28 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".LoginActivity"
-    android:background="@android:color/holo_orange_light">
+    android:background="#00CFCFCF"
+    tools:context=".LoginActivity">
 
-    <View
-        android:id="@+id/toolbarLogin"
-        android:layout_width="wrap_content"
-        android:layout_height="55sp"
-        android:background="@android:color/holo_red_light"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
 
+    <include
+        android:id="@+id/toolbarLogin"
+        layout="@layout/toolbar_layout" />
 
     <TextView
         android:id="@+id/textView"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginStart="180dp"
-        android:layout_marginTop="100dp"
+        android:layout_marginTop="200dp"
         android:layout_marginEnd="180dp"
         android:text="Welcome!"
         android:textSize="20sp"
         android:textStyle="bold"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.503"
+        app:layout_constraintHorizontal_bias="0.512"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/toolbarLogin" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <EditText
         android:id="@+id/emailInputLogin"
@@ -68,9 +63,9 @@
         android:layout_marginStart="100dp"
         android:layout_marginTop="42dp"
         android:layout_marginEnd="100dp"
+        android:background="@drawable/rounded_button"
         android:text="Sign In"
         android:textAllCaps="false"
-        android:background="@drawable/rounded_button"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/passwordInputLogin" />
@@ -83,24 +78,24 @@
         android:layout_marginTop="18dp"
         android:layout_marginEnd="178dp"
         android:text="Sign Up"
-        android:textSize="17sp"
-        android:textStyle="bold"
         android:textAllCaps="false"
         android:textColor="@android:color/black"
+        android:textSize="17sp"
+        android:textStyle="bold"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/signInButtonLogin" />
 
-    <TextView
-        android:id="@+id/titleLogin"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:text="Authorization"
-        android:textSize="20sp"
-        android:textStyle="bold"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="@+id/toolbarLogin"
-        app:layout_constraintTop_toTopOf="parent" />
+    <!--    <TextView-->
+    <!--        android:id="@+id/titleLogin"-->
+    <!--        android:layout_width="wrap_content"-->
+    <!--        android:layout_height="wrap_content"-->
+    <!--        android:layout_marginTop="16dp"-->
+    <!--        android:text="Authorization"-->
+    <!--        android:textSize="20sp"-->
+    <!--        android:textStyle="bold"-->
+    <!--        app:layout_constraintEnd_toEndOf="parent"-->
+    <!--        app:layout_constraintStart_toStartOf="@+id/toolbarLogin"-->
+    <!--        app:layout_constraintTop_toTopOf="parent" />-->
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_main.xml

@@ -4,6 +4,64 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    tools:context=".MainActivity"
+    android:background="#00CFCFCF">
+
+    <include
+        android:id="@+id/toolbarMain"
+        layout="@layout/toolbar_layout"/>
+
+    <View
+        android:id="@+id/viewMain"
+        android:layout_width="wrap_content"
+        android:layout_height="100sp"
+        android:layout_marginTop="10dp"
+        android:background="@android:color/holo_red_light"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/toolbarMain" />
+
+    <TextView
+        android:id="@+id/titleRegistrationMain"
+        android:layout_width="200dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="12dp"
+        android:layout_marginTop="35dp"
+        android:text="Username"
+        android:textSize="20sp"
+        app:layout_constraintStart_toEndOf="@+id/titleCircleImageViewMain"
+        app:layout_constraintTop_toTopOf="@+id/viewMain" />
+
+    <de.hdodenhof.circleimageview.CircleImageView
+        android:id="@+id/titleCircleImageViewMain"
+        android:layout_width="80dp"
+        android:layout_height="80dp"
+        android:layout_marginStart="10dp"
+        android:layout_marginTop="10dp"
+        app:civ_border_width="4sp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/viewMain" />
+
+    <androidx.viewpager.widget.ViewPager
+        android:id="@+id/viewPager"
+        android:layout_width="match_parent"
+        android:layout_height="555sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/viewMain"
+        app:layout_constraintVertical_bias="1.0">
+
+        <com.google.android.material.tabs.TabLayout
+            android:id="@+id/tabLayout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:background="@android:color/holo_red_light"
+            app:tabIndicator="@android:color/holo_red_light"
+            app:tabSelectedTextColor="@android:color/holo_red_light"
+            app:tabTextColor="@android:color/holo_red_light" />
+    </androidx.viewpager.widget.ViewPager>
+
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_register.xml

@@ -5,41 +5,36 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".RegisterActivity"
-    android:background="@android:color/holo_orange_light">
+    android:background="#00CFCFCF">
 
-    <View
-        android:id="@+id/toolbar"
-        android:layout_width="wrap_content"
-        android:layout_height="55sp"
-        android:background="@android:color/holo_red_light"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+    <include
+        android:id="@+id/toolbarRegistration"
+        layout="@layout/toolbar_layout"/>
 
     <TextView
         android:id="@+id/textView"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginStart="180dp"
-        android:layout_marginTop="120dp"
+        android:layout_marginTop="300dp"
         android:layout_marginEnd="180dp"
         android:text="Registration new user"
-        android:textStyle="bold"
         android:textSize="20sp"
+        android:textStyle="bold"
         app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.563"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/toolbar" />
-
+        app:layout_constraintTop_toTopOf="parent" />
 
     <EditText
         android:id="@+id/usernameInputRegister"
         android:layout_width="300dp"
         android:layout_height="45sp"
         android:layout_marginStart="161dp"
-        android:layout_marginTop="40dp"
+        android:layout_marginTop="60dp"
         android:layout_marginEnd="161dp"
-        android:hint="Username"
         android:background="@drawable/rounded_edittext"
+        android:hint="Username"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/textView" />
@@ -102,16 +97,41 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/registerNewUserButton" />
 
-    <TextView
-        android:id="@+id/titleRegistration"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:text="Registration"
-        android:textSize="20sp"
-        android:textStyle="bold"
+    <Button
+        android:id="@+id/selectPhotoButton"
+        android:layout_width="150dp"
+        android:layout_height="150dp"
+        android:layout_marginStart="169dp"
+        android:layout_marginTop="52dp"
+        android:layout_marginEnd="169dp"
+        android:background="@drawable/rounded_select_photo_button"
+        android:text="select photo"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="@+id/toolbar"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintHorizontal_bias="0.506"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/toolbarRegistration" />
+
+    <de.hdodenhof.circleimageview.CircleImageView
+        android:id="@+id/selectPhotoImageViewRegister"
+        android:layout_width="150dp"
+        android:layout_height="150dp"
+        app:civ_border_width="4dp"
+        app:layout_constraintBottom_toBottomOf="@+id/selectPhotoButton"
+        app:layout_constraintEnd_toEndOf="@+id/selectPhotoButton"
+        app:layout_constraintStart_toStartOf="@+id/selectPhotoButton"
+        app:layout_constraintTop_toTopOf="@+id/selectPhotoButton"
+        app:layout_constraintVertical_bias="0.0" />
+
+    <!--    <TextView-->
+<!--        android:id="@+id/titleRegistration"-->
+<!--        android:layout_width="wrap_content"-->
+<!--        android:layout_height="wrap_content"-->
+<!--        android:layout_marginTop="16dp"-->
+<!--        android:text="Registration"-->
+<!--        android:textSize="20sp"-->
+<!--        android:textStyle="bold"-->
+<!--        app:layout_constraintEnd_toEndOf="parent"-->
+<!--        app:layout_constraintStart_toStartOf="@+id/toolbar"-->
+<!--        app:layout_constraintTop_toTopOf="parent" />-->
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_chats.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".fragments.ChatsFragment">
+
+    <!-- TODO: Update blank fragment layout -->
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/hello_blank_fragment" />
+
+</FrameLayout>

app/src/main/res/layout/toolbar_layout.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.appcompat.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical" android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:id="@+id/toolbar"
     android:background="@android:color/holo_red_light">
 
-</Toolbar>
+</androidx.appcompat.widget.Toolbar>

app/src/main/res/menu/menu.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/logout"
+        android:title="Logout"
+        app:showAsAction="never"/>
+
+</menu>

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

@@ -1,3 +1,6 @@
 <resources>
     <string name="app_name">ChatApp</string>
+
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="hello_blank_fragment">Hello blank fragment</string>
 </resources>