提交了关于登陆界面、系统设置界面、启动界面的代码

3 years ago · ad195d4291
parent 25cc69493f
commit ad195d4291
36 changed files with 1103 additions and 0 deletions
--- a/src/androidTest/java/com/example/firefly/ExampleInstrumentedTest.java
+++ b/src/androidTest/java/com/example/firefly/ExampleInstrumentedTest.java
@ -0,0 +1,26 @@
+package com.example.firefly;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.firefly", appContext.getPackageName());
+    }
+}
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.firefly">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity
+            android:name=".ui.login.LoginActivity"
+            android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <activity
+            android:name=".ui.settings.SettingsActivity"
+            android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/src/main/java/com/example/firefly/data/LoginDataSource.java
+++ b/src/main/java/com/example/firefly/data/LoginDataSource.java
@ -0,0 +1,29 @@
+package com.example.firefly.data;
+
+import com.example.firefly.data.model.LoggedInUser;
+
+import java.io.IOException;
+
+/**
+ * Class that handles authentication w/ login credentials and retrieves user information.
+ */
+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));
+        }
+    }
+
+    public void logout() {
+        // TODO: revoke authentication
+    }
+}
--- a/src/main/java/com/example/firefly/data/LoginRepository.java
+++ b/src/main/java/com/example/firefly/data/LoginRepository.java
@ -0,0 +1,54 @@
+package com.example.firefly.data;
+
+import com.example.firefly.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.
+ */
+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;
+    }
+}
--- a/src/main/java/com/example/firefly/data/Result.java
+++ b/src/main/java/com/example/firefly/data/Result.java
@ -0,0 +1,48 @@
+package com.example.firefly.data;
+
+/**
+ * A generic class that holds a result success w/ data or an error exception.
+ */
+public class Result<T> {
+    // hide the private constructor to limit subclass types (Success, Error)
+    private Result() {
+    }
+
+    @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 {
+        private T data;
+
+        public Success(T data) {
+            this.data = data;
+        }
+
+        public T getData() {
+            return this.data;
+        }
+    }
+
+    // Error sub-class
+    public final static class Error extends Result {
+        private Exception error;
+
+        public Error(Exception error) {
+            this.error = error;
+        }
+
+        public Exception getError() {
+            return this.error;
+        }
+    }
+}
--- a/src/main/java/com/example/firefly/data/model/LoggedInUser.java
+++ b/src/main/java/com/example/firefly/data/model/LoggedInUser.java
@ -0,0 +1,23 @@
+package com.example.firefly.data.model;
+
+/**
+ * Data class that captures user information for logged in users retrieved from LoginRepository
+ */
+public class LoggedInUser {
+
+    private String userId;
+    private String displayName;
+
+    public LoggedInUser(String userId, String displayName) {
+        this.userId = userId;
+        this.displayName = displayName;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public String getDisplayName() {
+        return displayName;
+    }
+}
--- a/src/main/java/com/example/firefly/ui/login/LoggedInUserView.java
+++ b/src/main/java/com/example/firefly/ui/login/LoggedInUserView.java
@ -0,0 +1,17 @@
+package com.example.firefly.ui.login;
+
+/**
+ * Class exposing authenticated user details to the UI.
+ */
+class LoggedInUserView {
+    private String displayName;
+    //... other data fields that may be accessible to the UI
+
+    LoggedInUserView(String displayName) {
+        this.displayName = displayName;
+    }
+
+    String getDisplayName() {
+        return displayName;
+    }
+}
--- a/src/main/java/com/example/firefly/ui/login/LoginActivity.java
+++ b/src/main/java/com/example/firefly/ui/login/LoginActivity.java
@ -0,0 +1,131 @@
+package com.example.firefly.ui.login;
+
+import android.app.Activity;
+
+import androidx.lifecycle.Observer;
+import androidx.lifecycle.ViewModelProviders;
+
+import android.os.Bundle;
+
+import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.inputmethod.EditorInfo;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.example.firefly.R;
+import com.example.firefly.ui.login.LoginViewModel;
+import com.example.firefly.ui.login.LoginViewModelFactory;
+
+public class LoginActivity extends AppCompatActivity {
+
+    private LoginViewModel loginViewModel;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_login);
+        loginViewModel = ViewModelProviders.of(this, new LoginViewModelFactory())
+                .get(LoginViewModel.class);
+
+        final EditText usernameEditText = findViewById(R.id.username);
+        final EditText passwordEditText = findViewById(R.id.password);
+        final Button loginButton = findViewById(R.id.login);
+        final ProgressBar loadingProgressBar = findViewById(R.id.loading);
+
+        loginViewModel.getLoginFormState().observe(this, new Observer<LoginFormState>() {
+            @Override
+            public void onChanged(@Nullable LoginFormState loginFormState) {
+                if (loginFormState == null) {
+                    return;
+                }
+                loginButton.setEnabled(loginFormState.isDataValid());
+                if (loginFormState.getUsernameError() != null) {
+                    usernameEditText.setError(getString(loginFormState.getUsernameError()));
+                }
+                if (loginFormState.getPasswordError() != null) {
+                    passwordEditText.setError(getString(loginFormState.getPasswordError()));
+                }
+            }
+        });
+
+        loginViewModel.getLoginResult().observe(this, new Observer<LoginResult>() {
+            @Override
+            public void onChanged(@Nullable LoginResult loginResult) {
+                if (loginResult == null) {
+                    return;
+                }
+                loadingProgressBar.setVisibility(View.GONE);
+                if (loginResult.getError() != null) {
+                    showLoginFailed(loginResult.getError());
+                }
+                if (loginResult.getSuccess() != null) {
+                    updateUiWithUser(loginResult.getSuccess());
+                }
+                setResult(Activity.RESULT_OK);
+
+                //Complete and destroy login activity once successful
+                finish();
+            }
+        });
+
+        TextWatcher afterTextChangedListener = new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+                // ignore
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+                // ignore
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                loginViewModel.loginDataChanged(usernameEditText.getText().toString(),
+                        passwordEditText.getText().toString());
+            }
+        };
+        usernameEditText.addTextChangedListener(afterTextChangedListener);
+        passwordEditText.addTextChangedListener(afterTextChangedListener);
+        passwordEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
+
+            @Override
+            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+                if (actionId == EditorInfo.IME_ACTION_DONE) {
+                    loginViewModel.login(usernameEditText.getText().toString(),
+                            passwordEditText.getText().toString());
+                }
+                return false;
+            }
+        });
+
+        loginButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                loadingProgressBar.setVisibility(View.VISIBLE);
+                loginViewModel.login(usernameEditText.getText().toString(),
+                        passwordEditText.getText().toString());
+            }
+        });
+    }
+
+    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();
+    }
+
+    private void showLoginFailed(@StringRes Integer errorString) {
+        Toast.makeText(getApplicationContext(), errorString, Toast.LENGTH_SHORT).show();
+    }
+}
--- a/src/main/java/com/example/firefly/ui/login/LoginFormState.java
+++ b/src/main/java/com/example/firefly/ui/login/LoginFormState.java
@ -0,0 +1,40 @@
+package com.example.firefly.ui.login;
+
+import androidx.annotation.Nullable;
+
+/**
+ * Data validation state of the login form.
+ */
+class LoginFormState {
+    @Nullable
+    private Integer usernameError;
+    @Nullable
+    private Integer passwordError;
+    private boolean isDataValid;
+
+    LoginFormState(@Nullable Integer usernameError, @Nullable Integer passwordError) {
+        this.usernameError = usernameError;
+        this.passwordError = passwordError;
+        this.isDataValid = false;
+    }
+
+    LoginFormState(boolean isDataValid) {
+        this.usernameError = null;
+        this.passwordError = null;
+        this.isDataValid = isDataValid;
+    }
+
+    @Nullable
+    Integer getUsernameError() {
+        return usernameError;
+    }
+
+    @Nullable
+    Integer getPasswordError() {
+        return passwordError;
+    }
+
+    boolean isDataValid() {
+        return isDataValid;
+    }
+}
--- a/src/main/java/com/example/firefly/ui/login/LoginResult.java
+++ b/src/main/java/com/example/firefly/ui/login/LoginResult.java
@ -0,0 +1,31 @@
+package com.example.firefly.ui.login;
+
+import androidx.annotation.Nullable;
+
+/**
+ * Authentication result : success (user details) or error message.
+ */
+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;
+    }
+}
--- a/src/main/java/com/example/firefly/ui/login/LoginViewModel.java
+++ b/src/main/java/com/example/firefly/ui/login/LoginViewModel.java
@ -0,0 +1,70 @@
+package com.example.firefly.ui.login;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+import android.util.Patterns;
+
+import com.example.firefly.data.LoginRepository;
+import com.example.firefly.data.Result;
+import com.example.firefly.data.model.LoggedInUser;
+import com.example.firefly.R;
+
+public class LoginViewModel extends ViewModel {
+
+    private MutableLiveData<LoginFormState> loginFormState = new MutableLiveData<>();
+    private MutableLiveData<LoginResult> loginResult = new MutableLiveData<>();
+    private LoginRepository loginRepository;
+
+    LoginViewModel(LoginRepository loginRepository) {
+        this.loginRepository = loginRepository;
+    }
+
+    LiveData<LoginFormState> getLoginFormState() {
+        return loginFormState;
+    }
+
+    LiveData<LoginResult> getLoginResult() {
+        return loginResult;
+    }
+
+    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));
+        }
+    }
+
+    public void loginDataChanged(String username, String password) {
+        if (!isUserNameValid(username)) {
+            loginFormState.setValue(new LoginFormState(R.string.invalid_username, null));
+        } else if (!isPasswordValid(password)) {
+            loginFormState.setValue(new LoginFormState(null, R.string.invalid_password));
+        } else {
+            loginFormState.setValue(new LoginFormState(true));
+        }
+    }
+
+    // A placeholder username validation check
+    private boolean isUserNameValid(String username) {
+        if (username == null) {
+            return false;
+        }
+        if (username.contains("@")) {
+            return Patterns.EMAIL_ADDRESS.matcher(username).matches();
+        } else {
+            return !username.trim().isEmpty();
+        }
+    }
+
+    // A placeholder password validation check
+    private boolean isPasswordValid(String password) {
+        return password != null && password.trim().length() > 5;
+    }
+}
--- a/src/main/java/com/example/firefly/ui/login/LoginViewModelFactory.java
+++ b/src/main/java/com/example/firefly/ui/login/LoginViewModelFactory.java
@ -0,0 +1,26 @@
+package com.example.firefly.ui.login;
+
+import androidx.lifecycle.ViewModel;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.annotation.NonNull;
+
+import com.example.firefly.data.LoginDataSource;
+import com.example.firefly.data.LoginRepository;
+
+/**
+ * ViewModel provider factory to instantiate LoginViewModel.
+ * Required given LoginViewModel has a non-empty constructor
+ */
+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");
+        }
+    }
+}
--- a/src/main/java/com/example/firefly/ui/settings/SettingsActivity.java
+++ b/src/main/java/com/example/firefly/ui/settings/SettingsActivity.java
@ -0,0 +1,31 @@
+package com.example.firefly.ui.settings;
+
+import android.os.Bundle;
+
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.PreferenceFragmentCompat;
+
+public class SettingsActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.settings_activity);
+        getSupportFragmentManager()
+                .beginTransaction()
+                .replace(R.id.settings, new SettingsFragment())
+                .commit();
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+    }
+
+    public static class SettingsFragment extends PreferenceFragmentCompat {
+        @Override
+        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+            setPreferencesFromResource(R.xml.root_preferences, rootKey);
+        }
+    }
+}
--- a/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ b/src/main/res/drawable-v24/ic_launcher_foreground.xml
@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/src/main/res/drawable/ic_launcher_background.xml
+++ b/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/src/main/res/layout/activity_ip_connect.xml
+++ b/src/main/res/layout/activity_ip_connect.xml
@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/activity_ip_connect"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context="com.ipcamera.detect.IpConnectActivity">
+
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:background="@drawable/background_white_corner"
+            android:orientation="vertical">
+
+
+            <Button
+                android:id="@+id/btn_7"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="10.0dip"
+                android:layout_marginTop="5.0dip"
+                android:layout_marginRight="10.0dip"
+                android:layout_marginBottom="3.0dip"
+                android:text="Get the current address" />
+
+            <EditText
+                android:id="@+id/et_uid"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="10.0dip"
+                android:layout_marginTop="5.0dip"
+                android:layout_marginRight="10.0dip"
+                android:layout_marginBottom="3.0dip"
+                android:hint="Input the destination address"
+                android:maxLength="64"
+                android:singleLine="true"
+                android:text=""
+                android:textColor="@color/black"
+                android:textColorHint="@color/hint" />
+
+            <EditText
+                android:id="@+id/et_uid2"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="10.0dip"
+                android:layout_marginTop="5.0dip"
+                android:layout_marginRight="10.0dip"
+                android:layout_marginBottom="3.0dip"
+                android:hint="Input UAV number"
+                android:maxLength="64"
+                android:singleLine="true"
+                android:text=""
+                android:textColor="@color/black"
+                android:textColorHint="@color/hint" />
+
+
+            <Button
+                android:id="@+id/btn_1"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="10.0dip"
+                android:layout_marginTop="5.0dip"
+                android:layout_marginRight="10.0dip"
+                android:layout_marginBottom="3.0dip"
+                android:text="Start (manual)" />
+
+            <Button
+                android:id="@+id/btn_2"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="10.0dip"
+                android:layout_marginTop="5.0dip"
+                android:layout_marginRight="10.0dip"
+                android:layout_marginBottom="3.0dip"
+                android:text="Start (automatic)" />
+
+            <Button
+                android:id="@+id/btn_9"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="10.0dip"
+                android:layout_marginTop="5.0dip"
+                android:layout_marginRight="10.0dip"
+                android:layout_marginBottom="3.0dip"
+                android:text="Retract the UAV" />
+
+            <Button
+                android:id="@+id/btn_3"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="10.0dip"
+                android:layout_marginTop="5.0dip"
+                android:layout_marginRight="10.0dip"
+                android:layout_marginBottom="3.0dip"
+                android:text="Settings" />
+
+            <Button
+                android:id="@+id/getInfo"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="10.0dip"
+                android:layout_marginTop="5.0dip"
+                android:layout_marginRight="10.0dip"
+                android:layout_marginBottom="3.0dip"
+                android:text="@string/get_message_info"
+                android:visibility="gone" />
+
+
+        </LinearLayout>
+
+
+    </ScrollView>
+
+
+</LinearLayout>
--- a/src/main/res/layout/activity_login.xml
+++ b/src/main/res/layout/activity_login.xml
@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    tools:context=".ui.login.LoginActivity">
+
+    <EditText
+        android:id="@+id/username"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="24dp"
+        android:layout_marginTop="96dp"
+        android:layout_marginEnd="24dp"
+        android:hint="@string/prompt_username"
+        android:inputType="textEmailAddress"
+        android:selectAllOnFocus="true"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <EditText
+        android:id="@+id/password"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="24dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginEnd="24dp"
+        android:hint="@string/prompt_password"
+        android:imeActionLabel="@string/action_sign_in_short"
+        android:imeOptions="actionDone"
+        android:inputType="textPassword"
+        android:selectAllOnFocus="true"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/username" />
+
+    <Button
+        android:id="@+id/login"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="start"
+        android:layout_marginStart="48dp"
+        android:layout_marginTop="16dp"
+        android:layout_marginEnd="48dp"
+        android:layout_marginBottom="64dp"
+        android:enabled="false"
+        android:text="@string/action_sign_in"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/password"
+        app:layout_constraintVertical_bias="0.2" />
+
+    <ProgressBar
+        android:id="@+id/loading"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:layout_marginStart="32dp"
+        android:layout_marginTop="64dp"
+        android:layout_marginEnd="32dp"
+        android:layout_marginBottom="64dp"
+        android:visibility="gone"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="@+id/password"
+        app:layout_constraintStart_toStartOf="@+id/password"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.3" />
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/src/main/res/layout/root_preferences.xml
+++ b/src/main/res/layout/root_preferences.xml
@ -0,0 +1,46 @@
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <PreferenceCategory app:title="@string/messages_header">
+
+        <EditTextPreference
+            app:key="altitude"
+            app:defaultValue="100"
+            app:title="@string/signature_title"
+            app:useSimpleSummaryProvider="true" />
+
+        <ListPreference
+            app:defaultValue="5"
+            app:entries="@array/distance"
+            app:entryValues="@array/distance"
+            app:key="distance"
+            app:title="@string/reply_title"
+            app:useSimpleSummaryProvider="true" />
+
+        <SwitchPreferenceCompat
+            app:dependency="sync"
+            app:key="attachment"
+            app:summaryOff="There are no restriction on flight parameters"
+            app:summaryOn="There are restrictions on flight parameters"
+            app:title="Power saving" />
+
+    </PreferenceCategory>
+
+    <PreferenceCategory app:title="@string/sync_header">
+
+        <SwitchPreferenceCompat
+            app:key="frequency"
+            app:title="High frequency"
+            app:summaryOff="When turned on, power consumption accelerates"
+            app:summaryOn="Power consumption is normal after shutdown"/>
+
+        <SwitchPreferenceCompat
+            app:dependency="5G"
+            app:key="attachment"
+            app:summaryOff="5G signals are fast, but coverage is limited"
+            app:summaryOn="5G signals are fast, but coverage is limited"
+            app:title="Use 5G" />
+
+    </PreferenceCategory>
+</PreferenceScreen>
+
--- a/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/src/main/res/mipmap-hdpi/ic_launcher.png
+++ b/src/main/res/mipmap-hdpi/ic_launcher.png
--- a/src/main/res/mipmap-hdpi/ic_launcher_round.png
+++ b/src/main/res/mipmap-hdpi/ic_launcher_round.png
--- a/src/main/res/mipmap-mdpi/ic_launcher.png
+++ b/src/main/res/mipmap-mdpi/ic_launcher.png
--- a/src/main/res/mipmap-mdpi/ic_launcher_round.png
+++ b/src/main/res/mipmap-mdpi/ic_launcher_round.png
--- a/src/main/res/mipmap-xhdpi/ic_launcher.png
+++ b/src/main/res/mipmap-xhdpi/ic_launcher.png
--- a/src/main/res/mipmap-xhdpi/ic_launcher_round.png
+++ b/src/main/res/mipmap-xhdpi/ic_launcher_round.png
--- a/src/main/res/mipmap-xxhdpi/ic_launcher.png
+++ b/src/main/res/mipmap-xxhdpi/ic_launcher.png
--- a/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
+++ b/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
--- a/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--- a/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
+++ b/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
--- a/src/main/res/values/arrays.xml
+++ b/src/main/res/values/arrays.xml
@ -0,0 +1,20 @@
+<resources>
+    <!-- Reply Preference -->
+    <string-array name="reply_entries">
+        <item>Reply</item>
+        <item>Reply to all</item>
+    </string-array>
+
+    <string-array name="reply_values">
+        <item>reply</item>
+        <item>reply_all</item>
+    </string-array>
+
+    <string-array name="distance">
+        <item>3</item>
+        <item>5</item>
+        <item>7</item>
+        <item>9</item>
+        <item>no limited</item>
+    </string-array>
+</resources>
--- a/src/main/res/values/colors.xml
+++ b/src/main/res/values/colors.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#6200EE</color>
+    <color name="colorPrimaryDark">#3700B3</color>
+    <color name="colorAccent">#03DAC5</color>
+</resources>
--- a/src/main/res/values/dimens.xml
+++ b/src/main/res/values/dimens.xml
@ -0,0 +1,5 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@ -0,0 +1,30 @@
+<resources>
+    <string name="app_name">FireFly</string>
+    <!-- Strings related to login -->
+    <string name="prompt_username">UserName</string>
+    <string name="prompt_password">Password</string>
+    <string name="action_sign_in">Sign in or register</string>
+    <string name="action_sign_in_short">Sign in</string>
+    <string name="welcome">"Welcome !"</string>
+    <string name="invalid_username">Not a valid username</string>
+    <string name="invalid_password">Password must be >5 characters</string>
+    <string name="login_failed">"Login failed"</string>
+
+
+    <string name="title_activity_settings">Settings</string>
+
+    <!-- Preference Titles -->
+    <string name="messages_header">Flight Settings</string>
+    <string name="sync_header">Signal setting</string>
+
+    <!-- Messages Preferences -->
+    <string name="signature_title">Maximum flight altitude</string>
+    <string name="reply_title">Maximum flying distance</string>
+
+    <!-- Sync Preferences -->
+    <string name="sync_title">Sync email periodically</string>
+    <string name="attachment_title">Download incoming attachments</string>
+    <string name="attachment_summary_on">Automatically download attachments for incoming emails
+    </string>
+    <string name="attachment_summary_off">Only download attachments when manually requested</string>
+</resources>
--- a/src/main/res/values/styles.xml
+++ b/src/main/res/values/styles.xml
@ -0,0 +1,10 @@
+<resources>
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>
--- a/src/test/java/com/example/firefly/ExampleUnitTest.java
+++ b/src/test/java/com/example/firefly/ExampleUnitTest.java
@ -0,0 +1,17 @@
+package com.example.firefly;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}