Initial commit

.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

README.md

@@ -0,0 +1,24 @@
+# Tweet App
+![Imgur](https://imgur.com/DTNuPpX.jpg)
+The Tweet application is a tweet posting application for a single user. It uses Firestore to store and fetch the tweets. The Firestore updates the screen realtime by using the FirestoreRecyclerAdapter
+
+## App use case
+- Post new tweets.
+- See the tweets in a list sorted by timestamp
+- Edit and delete a tweet.
+- Login and logout using firebase google authentication
+
+## App Architecture
+![Imgur](https://imgur.com/FScZEpj.jpg)
+The architecture used for this application is MVVM. The activity uses viewModel functions to save and fetch data to firestore via a repository.
+The FirestoreRecyclerAdapter keeps listening to the changes in the database and updates in realtime.
+
+Components used:
+Hilt for Dependency injection
+Coroutines for pushing data to Firestore
+Firebase integration
+
+## Third Party Libraries
+The following 3rd party libraries are used:
+- SDP intuit: to support multiple screen avoiding the dimens files.
+- Glide: To load images

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

@@ -0,0 +1,110 @@
+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+    id 'com.google.gms.google-services'
+    id 'kotlin-kapt'
+    id 'kotlin-android-extensions'
+    id 'dagger.hilt.android.plugin'
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.3"
+
+    defaultConfig {
+        applicationId "com.app.glints"
+        minSdkVersion 24
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+def sdp_version = "1.0.6"
+def hilt_android = "2.28.1-alpha"
+def hilt_lifecycle = "1.0.0-alpha01"
+def activity_ktx_version = "1.2.3"
+def lifecycle_ktx_version = "2.3.1"
+def coroutines_version = "1.4.1"
+def lifecycle_extension_version = "1.1.1"
+def glide_version = "4.12.0"
+
+dependencies {
+
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation 'androidx.core:core-ktx:1.5.0'
+    implementation 'androidx.appcompat:appcompat:1.3.0'
+    implementation 'com.google.android.material:material:1.3.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    implementation 'com.google.firebase:firebase-firestore:21.4.0'
+    implementation 'com.google.firebase:firebase-auth:21.0.1'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+
+    /**
+     * Firebase
+     */
+    implementation platform('com.google.firebase:firebase-bom:28.2.0')
+    implementation 'com.google.firebase:firebase-analytics-ktx'
+    implementation 'com.google.firebase:firebase-database'
+    implementation 'com.firebaseui:firebase-ui-firestore:7.1.1'
+    implementation 'com.google.firebase:firebase-auth-ktx'
+
+
+    /**
+     * Coroutines and lifecycle
+     */
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_ktx_version"
+    implementation "android.arch.lifecycle:extensions:$lifecycle_extension_version"
+
+
+    /**
+     * SDP to support multiple release
+     */
+    implementation "com.intuit.sdp:sdp-android:$sdp_version"
+    implementation "com.intuit.ssp:ssp-android:$sdp_version"
+
+    /**
+     * HILT
+     */
+    implementation "com.google.dagger:hilt-android:$hilt_android"
+    implementation "androidx.hilt:hilt-lifecycle-viewmodel:$hilt_lifecycle"
+    kapt "com.google.dagger:hilt-android-compiler:$hilt_android"
+    kapt "androidx.hilt:hilt-compiler:$hilt_lifecycle"
+
+    /**
+     * Activity and Lifecycle
+     */
+    implementation "androidx.activity:activity-ktx:$activity_ktx_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_ktx_version"
+
+    /**
+     * Google auth
+     */
+    implementation 'com.google.android.gms:play-services-auth:19.0.0'
+
+    /**
+     * Glide for image
+     */
+    implementation "com.github.bumptech.glide:glide:$glide_version"
+    annotationProcessor "com.github.bumptech.glide:compiler:$glide_version"
+}

app/google-services.json

@@ -0,0 +1,48 @@
+{
+  "project_info": {
+    "project_number": "1076515696443",
+    "firebase_url": "https://glintz-2a420-default-rtdb.firebaseio.com",
+    "project_id": "glintz-2a420",
+    "storage_bucket": "glintz-2a420.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:1076515696443:android:b0abc8c526583d2df7111e",
+        "android_client_info": {
+          "package_name": "com.app.glints"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "1076515696443-hgo5i2u0eehut4p6hcg4arp4bijbrlfq.apps.googleusercontent.com",
+          "client_type": 1,
+          "android_info": {
+            "package_name": "com.app.glints",
+            "certificate_hash": "bcc85ece0a63073b9590f2eb5089c64891cc165e"
+          }
+        },
+        {
+          "client_id": "1076515696443-tqke3kul4jb1djahtulbiouebvcj8i8o.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyBFUmiDQApoHeVX8amH5kwdgp3mjh9sJdo"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "1076515696443-tqke3kul4jb1djahtulbiouebvcj8i8o.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/app/glints/ExampleInstrumentedTest.kt

@@ -0,0 +1,24 @@
+package com.app.glints
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.app.glints", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.app.glints">
+
+    <application
+        android:name=".GlintsApplication"
+        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/Theme.Glints">
+        <activity android:name=".ui.tweet.MainActivity">
+
+        </activity>
+
+        <activity android:name = ".ui.login.LoginActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/app/glints/GlintsApplication.kt

@@ -0,0 +1,12 @@
+package com.app.glints
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+
+@HiltAndroidApp
+class GlintsApplication: Application() {
+    override fun onCreate() {
+        super.onCreate()
+    }
+}