Android Uygulama ToDoList Uygulaması Firebase

kuzeykibris · 1 May 2021

Merhaba Arkadaşlar,

Bugün ki dersimiz bir firebasei kullanarak todoList yani not tutma uygulaması yapacağız.

Androidte api 15 sürümü ile birlikte bir android projesi açalım.

Not 1 : burada ki package ismini unutmayın.

Projenin Tanıtımı: Firebase teki auth ve database özelliği kullanılarak login ve sign up işlemi yapılarak kullanıcıya özgü not tutma kısmı olan bir proje olacaktır. Resimler ve proje kaynak dosyaları aşağıdadır.

Öncelikle bu proje için ilk olarak firebase kısmına giriş yapmanız gerekmekte. //console.firebase.google.com/ ile eğer kayıt değilseniz kayıt olunuz. Kayıtlı iseniz proje ekle ile ilk projenizi ekleyiniz.

Evet, artık bizi bir uygulama kısmı karşıladı. Hangi uygulama ile uğraşılacaksa onu seçiyoruz. Tabiki şuan için android seçiyoruz.

Sonra bize bir json dosyası veriyor.
Bu dosyayı indirin.Sonrasında Json dosyasını app klasörü içine kopyalayın.

Ek olarak gradle dosyası kaldı elimizde.
Şimdi 2 tane gradle dosyanızın değiştirmeniz gereken yerlerini aşağıya ekliyorum.

Kod:

build.gradle > Project kısmı

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.2'
        classpath 'com.google.gms:google-services:3.1.0'
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

build.gradle > app kısmı

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"
    defaultConfig {
        applicationId "com.umiitkose.firebase_todolist"
        minSdkVersion 15
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.android.support:design:24.2.0'
    compile 'com.google.firebase:firebase-database:9.4.0'
    compile 'com.google.firebase:firebase-auth:9.4.0'
    testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'

Şimdi ek olarak firebasete auth özelliğini açacağız. Geliştirme kısmında Authentication sekmesini açıyoruz.

Oturum açma yönteminde eposta kısmını aktif hale getiriyoruz.

Firebase ile ilgili son yapacağımız işlem ise kurallarımızı aktif hale getirmek.
Geliştirme Kısmında ki Database sekmesinden rules-kurallar kısmına giriş yapınız.
Aşağıdaki kodu kurallara ekleyiniz.

Not 2: Firebase ile ilgili rules, auth, database okuma, yazma gibi işlemler ek bir ders halinde anlatılacaktır.

Kural olarakta auth boş olamaz ve auth.uid miz yazma ve okuma da uidye eşit olacaktır. title kısmı ise string ve uzunluğu 0dan büyük olmalıdır yani boş olamaz.

Kod:

{
  "rules": {
    "users": {
      "$uid": {
        ".read": "auth != null && auth.uid == $uid",
        ".write": "auth != null && auth.uid == $uid",
        "items": {
          "$item_id": {
            "title": {
              ".validate": "newData.isString() && newData.val().length > 0"
            }
          }
        }
      }
    }
  }
}

Şimdi tek tek tasarımdan itibaren kodları ekleyeceğiz.

Android Manifest :

<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.umiitkose.firebase_todolist"
          xmlns:android="//schemas.android.com/apk/res/android">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <activity android:name="com.umiitkose.firebase_todolist.LogInActivity">
        </activity>
        <activity android:name="com.umiitkose.firebase_todolist.SignUpActivity">
        </activity>
    </application>

</manifest>

Item.java

package com.umiitkose.firebase_todolist;

public class Item {

    private String title;

    public Item() {}

    public Item(String title) {
        this.title = title;
    }

    public String getTitle() {
        return title;
    }

    public **** setTitle(String title) {
        this.title = title;
    }
}

logInActivity.java

package com.umiitkose.firebase_todolist;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

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 {

    protected EditText emailEditText;
    protected EditText passwordEditText;
    protected Button logInButton;
    protected TextView signUpTextView;
    private FirebaseAuth mFirebaseAuth;

     [USER=931120]Override[/USER]
    protected **** onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_log_in);

        mFirebaseAuth = FirebaseAuth.getInstance();

        signUpTextView = (TextView) findViewById(R.id.signUpText);
        emailEditText = (EditText) findViewById(R.id.emailField);
        passwordEditText = (EditText) findViewById(R.id.passwordField);
        logInButton = (Button) findViewById(R.id.loginButton);

        signUpTextView.setOnClickListener(new View.OnClickListener() {
             [USER=931120]Override[/USER]
            public **** onClick(View v) {
                Intent intent = new Intent(LogInActivity.this, SignUpActivity.class);
                startActivity(intent);
            }
        });

        logInButton.setOnClickListener(new View.OnClickListener() {
             [USER=931120]Override[/USER]
            public **** onClick(View v) {
                String email = emailEditText.getText().toString();
                String password = passwordEditText.getText().toString();

                email = email.trim();
                password = password.trim();

                if (email.isEmpty() || password.isEmpty()) {
                    AlertDialog.Builder builder = new AlertDialog.Builder(LogInActivity.this);
                    builder.setMessage(R.string.login_error_message)
                            .setTitle(R.string.login_error_title)
                            .setPositiveButton(android.R.string.ok, null);
                    AlertDialog dialog = builder.create();
                    dialog.show();
                } else {
                    mFirebaseAuth.signInWithEmailAndPassword(email, password)
                            .addOnCompleteListener(LogInActivity.this, new OnCompleteListener<AuthResult>() {
                                 [USER=931120]Override[/USER]
                                public **** onComplete(@NonNull Task<AuthResult> task) {
                                    if (task.isSuccessful()) {
                                        Intent intent = new Intent(LogInActivity.this, MainActivity.class);
                                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                                        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                        startActivity(intent);
                                    } else {
                                        AlertDialog.Builder builder = new AlertDialog.Builder(LogInActivity.this);
                                        builder.setMessage(task.getException().getMessage())
                                                .setTitle(R.string.login_error_title)
                                                .setPositiveButton(android.R.string.ok, null);
                                        AlertDialog dialog = builder.create();
                                        dialog.show();
                                    }
                                }
                            });
                }
            }
        });
    }
}

MainActivity.java

package com.umiitkose.firebase_todolist;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;

import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.ChildEventListener;
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.umiitkose.firebase_todolist.Item;
import com.umiitkose.firebase_todolist.LogInActivity;

public class MainActivity extends AppCompatActivity {

    private FirebaseAuth mFirebaseAuth;
    private FirebaseUser mFirebaseUser;
    private DatabaseReference mDatabase;
    private String mUserId;

     [USER=931120]Override[/USER]
    protected **** onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

     
        mFirebaseAuth = FirebaseAuth.getInstance();
        mFirebaseUser = mFirebaseAuth.getCurrentUser();
        mDatabase = FirebaseDatabase.getInstance().getReference();

        if (mFirebaseUser == null) {
            loadLogInView();
        } else {
            mUserId = mFirebaseUser.getUid();

            final ListView listView = (ListView) findViewById(R.id.listView);
            final ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, android.R.id.text1);
            listView.setAdapter(adapter);

            final EditText text = (EditText) findViewById(R.id.todoText);
            final Button button = (Button) findViewById(R.id.addButton);
            button.setOnClickListener(new View.OnClickListener() {
                public **** onClick(View v) {
                    Item item = new Item(text.getText().toString());
                    mDatabase.child("users").child(mUserId).child("items").push().setValue(item);
                    text.setText("");
                }
            });

            mDatabase.child("users").child(mUserId).child("items").addChildEventListener(new ChildEventListener() {
                 [USER=931120]Override[/USER]
                public **** onChildAdded(DataSnapshot dataSnapshot, String s) {
                    adapter.add((String) dataSnapshot.child("title").getValue());
                }

                 [USER=931120]Override[/USER]
                public **** onChildChanged(DataSnapshot dataSnapshot, String s) {

                }

                 [USER=931120]Override[/USER]
                public **** onChildRemoved(DataSnapshot dataSnapshot) {
                    adapter.remove((String) dataSnapshot.child("title").getValue());
                }

                 [USER=931120]Override[/USER]
                public **** onChildMoved(DataSnapshot dataSnapshot, String s) {

                }

                 [USER=931120]Override[/USER]
                public **** onCancelled(DatabaseError databaseError) {

                }
            });

            listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                public **** onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    mDatabase.child("users").child(mUserId).child("items")
                            .orderByChild("title")
                            .equalTo((String) listView.getItemAtPosition(position))
                            .addListenerForSingleValueEvent(new ValueEventListener() {
                                 [USER=931120]Override[/USER]
                                public **** onDataChange(DataSnapshot dataSnapshot) {
                                    if (dataSnapshot.hasChildren()) {
                                        DataSnapshot firstChild = dataSnapshot.getChildren().iterator().next();
                                        firstChild.getRef().removeValue();
                                    }
                                }

                                 [USER=931120]Override[/USER]
                                public **** onCancelled(DatabaseError databaseError) {

                                }
                            });
                }
            });
        }
    }

    private **** loadLogInView() {
        Intent intent = new Intent(this, LogInActivity.class);
        startActivity(intent);
    }

     [USER=931120]Override[/USER]
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

     [USER=931120]Override[/USER]
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_logout) {
            mFirebaseAuth.signOut();
            loadLogInView();
        }

        return super.onOptionsItemSelected(item);
    }
}

signUpActivity.java

package com.umiitkose.firebase_todolist;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

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 SignUpActivity extends AppCompatActivity {

    protected EditText passwordEditText;
    protected EditText emailEditText;
    protected Button signUpButton;
    private FirebaseAuth mFirebaseAuth;

     [USER=931120]Override[/USER]
    protected **** onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sign_up);

        mFirebaseAuth = FirebaseAuth.getInstance();

        passwordEditText = (EditText)findViewById(R.id.passwordField);
        emailEditText = (EditText)findViewById(R.id.emailField);
        signUpButton = (Button)findViewById(R.id.signupButton);

        signUpButton.setOnClickListener(new View.OnClickListener() {
             [USER=931120]Override[/USER]
            public **** onClick(View v) {
                String password = passwordEditText.getText().toString();
                String email = emailEditText.getText().toString();

                password = password.trim();
                email = email.trim();

                if (password.isEmpty() || email.isEmpty()) {
                    AlertDialog.Builder builder = new AlertDialog.Builder(SignUpActivity.this);
                    builder.setMessage(R.string.signup_error_message)
                            .setTitle(R.string.signup_error_title)
                            .setPositiveButton(android.R.string.ok, null);
                    AlertDialog dialog = builder.create();
                    dialog.show();
                } else {
                    mFirebaseAuth.createUserWithEmailAndPassword(email, password)
                            .addOnCompleteListener(SignUpActivity.this, new OnCompleteListener<AuthResult>() {
                                 [USER=931120]Override[/USER]
                                public **** onComplete(@NonNull Task<AuthResult> task) {
                                    if (task.isSuccessful()) {
                                        Intent intent = new Intent(SignUpActivity.this, MainActivity.class);
                                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                                        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                        startActivity(intent);
                                    } else {
                                        AlertDialog.Builder builder = new AlertDialog.Builder(SignUpActivity.this);
                                        builder.setMessage(task.getException().getMessage())
                                                .setTitle(R.string.login_error_title)
                                                .setPositiveButton(android.R.string.ok, null);
                                        AlertDialog dialog = builder.create();
                                        dialog.show();
                                    }
                                }
                            });
                }
            }
        });
    }

}

activity_log_in.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="//schemas.android.com/apk/res/android"
                xmlns:tools="//schemas.android.com/tools"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                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.umiitkose.firebase_todolist.LogInActivity" >

    <EditText
        android:id="@+id/emailField"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:ems="10"
        android:inputType="textEmailAddress"
        android:hint="@string/email_hint" >

        <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/passwordField"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/emailField"
        android:layout_below="@+id/emailField"
        android:ems="10"
        android:hint="@string/password_hint"
        android:inputType="textPassword" />

    <Button
        android:id="@+id/loginButton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/passwordField"
        android:layout_below="@+id/passwordField"
        android:text="@string/login_button_label" />

    <TextView
        android:id="@+id/signUpText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/loginButton"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="69dp"
        android:text="@string/sign_up_text" />

</RelativeLayout>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="//schemas.android.com/apk/res/android"
    xmlns:app="//schemas.android.com/apk/res-auto"
    xmlns:tools="//schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context=".MainActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay"/>

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main"/>

</android.support.design.widget.CoordinatorLayout>

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
              xmlns:tools="//schemas.android.com/tools"
              xmlns:app="//schemas.android.com/apk/res-auto"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:paddingLeft="@dimen/activity_horizontal_margin"
              android:paddingRight="@dimen/activity_horizontal_margin"
              android:paddingTop="@dimen/activity_vertical_margin"
              android:paddingBottom="@dimen/activity_vertical_margin"
              app:layout_behavior="@string/appbar_scrolling_view_behavior"
              tools:context=".MainActivity"
              tools:showIn="@layout/activity_main"
              android:orientation="vertical">

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">
    </ListView>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_gravity="bottom">
        <EditText
            android:id="@+id/todoText"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
        <Button
            android:id="@+id/addButton"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/add_item"/>
    </LinearLayout>

</LinearLayout>

activity_sign_up.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="//schemas.android.com/apk/res/android"
                xmlns:tools="//schemas.android.com/tools"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                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.umiitkose.firebase_todolist.SignUpActivity" >

    <EditText
        android:id="@+id/emailField"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:ems="10"
        android:inputType="textEmailAddress"
        android:hint="@string/email_hint" >

        <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/passwordField"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/emailField"
        android:layout_below="@+id/emailField"
        android:ems="10"
        android:inputType="textPassword"
        android:hint="@string/password_hint" />

    <Button
        android:id="@+id/signupButton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/passwordField"
        android:layout_below="@+id/passwordField"
        android:text="@string/sign_up_button_label" />

</RelativeLayout>

strings.xml

<resources>
    <string name="app_name">To Do</string>
    <string name="action_settings">Ayarlar</string>

    <string name="password_hint">Lütfen Şifrenizi Giriniz.</string>
    <string name="email_hint">Lütfen Emailiniz giriniz.</string>
    <string name="sign_up_button_label">Sign Up</string>
    <string name="signup_error_message">Lütfen Email ve Şifrenizi giriniz</string>
    <string name="signup_error_title">Error!</string>
    <string name="signup_success">Hesap başarıyla oluşturuldu. Giriş yapabilirsiniz.</string>
    <string name="login_error_message">Lütfen email ve şifrenizi giriniz!</string>
    <string name="login_error_title">Hata!</string>
    <string name="login_button_label">Giriş</string>
    <string name="sign_up_text">Kaydol</string>
    <string name="title_activity_login">Giriş Yap</string>
    <string name="add_item">Yeni not ekleyin.</string>
    <string name="action_logout">Çıkış Yap</string>
</resources>

menu > menu_main.xml

<menu xmlns:android="//schemas.android.com/apk/res/android"
      xmlns:app="//schemas.android.com/apk/res-auto"
      xmlns:tools="//schemas.android.com/tools"
      tools:context=".MainActivity">
    <item
        android:id="@+id/action_logout"
        android:orderInCategory="100"
        android:title="@string/action_logout"
        app:showAsAction="never"/>
</menu>

VeriTabanı Ekran görüntüleri:

Proje Ekran Görüntüleri:

Takıldığınız yerde yardım edebilirim.
Başarılar dilerim.

Android Uygulama ToDoList Uygulaması Firebase

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