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DatabaseManager is able to access data from Firestore cloud. #7

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DatabaseManager is able to access data from Firestore cloud. #7

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71 changes: 34 additions & 37 deletions app/app.iml
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14 changes: 8 additions & 6 deletions app/build.gradle
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Expand Up @@ -24,22 +24,24 @@ android {

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'com.google.android.material:material:1.0.0'
implementation 'com.google.android.material:material:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

// the Firebase SDK for Google Analytics
implementation 'com.google.firebase:firebase-analytics:17.2.1'
implementation 'com.google.firebase:firebase-analytics:17.2.3'
// add SDKs for any other desired Firebase products
// https://firebase.google.com/docs/android/setup#available-libraries
// firestore, authentication, and firebase-storage SDKs
implementation 'com.google.firebase:firebase-auth:19.1.0'
implementation 'com.google.firebase:firebase-firestore-ktx:21.2.1' // Kotlin version of the dependency
implementation 'com.google.firebase:firebase-storage-ktx:19.1.0' // Kotlin version of the dependency
implementation 'com.google.firebase:firebase-auth:19.3.0'
implementation 'com.google.firebase:firebase-firestore-ktx:21.4.1'
// Kotlin version of the dependency
implementation 'com.google.firebase:firebase-storage-ktx:19.1.1'
// Kotlin version of the dependency
//Kotlin versions of dependencies are labeled (beta) on Firebase Docs.

}
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6 changes: 3 additions & 3 deletions app/src/main/AndroidManifest.xml
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@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="crucentralcoast.android">
package="crucentralcoast.android">

<application
android:allowBackup="true"
Expand All @@ -13,9 +13,9 @@
android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER"/>
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
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6 changes: 6 additions & 0 deletions app/src/main/java/crucentralcoast/android/MainActivity.kt
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@@ -1,17 +1,22 @@
package crucentralcoast.android

import android.os.Bundle
import android.widget.ImageView
import com.google.android.material.bottomnavigation.BottomNavigationView
import androidx.appcompat.app.AppCompatActivity
import android.widget.TextView
import crucentralcoast.database.DatabaseManager

class MainActivity : AppCompatActivity() {

private lateinit var textMessage: TextView

var db = DatabaseManager("movements")
private val onNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
when (item.itemId) {
R.id.navigation_events -> {
textMessage.setText("Events")
db.setText(textMessage)
return@OnNavigationItemSelectedListener true
}
R.id.navigation_community -> {
Expand Down Expand Up @@ -40,6 +45,7 @@ class MainActivity : AppCompatActivity() {
setContentView(R.layout.activity_main)
val navView: BottomNavigationView = findViewById(R.id.nav_view)


textMessage = findViewById(R.id.message)
navView.setOnNavigationItemSelectedListener(onNavigationItemSelectedListener)
}
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30 changes: 30 additions & 0 deletions app/src/main/java/crucentralcoast/database/DatabaseManager.kt
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@@ -0,0 +1,30 @@
package crucentralcoast.database

import android.graphics.BitmapFactory
import android.net.Uri
import android.widget.ImageView
import com.google.android.gms.tasks.Task
import com.google.firebase.firestore.*
import android.widget.TextView
import java.net.URI


data class DatabaseManager(val collectionName: String,
val db: FirebaseFirestore = FirebaseFirestore.getInstance())
{

private val testDoc: String = "563b07402930ae0300fbc09b"

fun setText(textView: TextView) {
db.collection(collectionName).document(testDoc).get()
.addOnSuccessListener {
val tempStr = it.get("description")
if(tempStr is String)
textView.text = tempStr
else println("Value from Firestore is not of type String")
}
}
Comment on lines +18 to +26
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@fedorareis fedorareis Apr 12, 2020

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I'm a little fuzzy on what is going on in this function, especially in light of what is in the MainActivity. It appears that this function gets a document from the collection then sets the textView's text to the description from the document. It seems like a lot of what is in this file is just proof of concept that you can get data from the DB. I'm however hesitant to accept it into the repo in that state. The DatabaseManager should just be reading and writing from the DB. We should probably have models for each item type such as Event. Then in the MainActivity you would have something like

R.id.navigation_events -> {
                 textMessage.setText("Events")
                 textMessage.text = event.get("description")
                 return@OnNavigationItemSelectedListener true
}

As a rule of thumb also avoid variable names like tmpStr I'm fine with something being a temp variable, but tell me what it is temporarily storing (e.g. tmpDescription). Descriptive variable naming helps for a better comment/code sturcture. Your code should tell me "what" (in a pretty clear way) and your comments should tell me "why".

Sorry about the length of this comment, I just want to make sure we get the data modeling set up well at the start since it is the core to the whole application.




}
12 changes: 8 additions & 4 deletions app/src/main/res/layout/activity_main.xml
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Expand Up @@ -12,12 +12,13 @@
android:id="@+id/message"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/activity_horizontal_margin"
android:layout_marginLeft="@dimen/activity_horizontal_margin"
android:layout_marginTop="@dimen/activity_vertical_margin"
android:layout_marginTop="84dp"
android:text="@string/title_home"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />

<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/nav_view"
Expand All @@ -29,4 +30,7 @@
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/bottom_nav_menu" app:labelVisibilityMode="labeled"/>




</androidx.constraintlayout.widget.ConstraintLayout>
3 changes: 3 additions & 0 deletions app/src/main/res/values/dimens.xml
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Expand Up @@ -2,4 +2,7 @@
<!-- Default screen margins, per the Android Design guidelines. -->
<dimen name="activity_horizontal_margin">16dp</dimen>
<dimen name="activity_vertical_margin">16dp</dimen>
<dimen name="app_bar_height">180dp</dimen>
<dimen name="fab_margin">16dp</dimen>
<dimen name="text_margin">16dp</dimen>
</resources>
91 changes: 91 additions & 0 deletions app/src/main/res/values/strings.xml
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Expand Up @@ -3,4 +3,95 @@
<string name="title_home">Home</string>
<string name="title_dashboard">Dashboard</string>
<string name="title_notifications">Notifications</string>
<string name="title_activity_events_scrolling">EventsScrollingActivity</string>
<string name="large_text">
"Material is the metaphor.\n\n"

"A material metaphor is the unifying theory of a rationalized space and a system of motion."
"The material is grounded in tactile reality, inspired by the study of paper and ink, yet "
"technologically advanced and open to imagination and magic.\n"
"Surfaces and edges of the material provide visual cues that are grounded in reality. The "
"use of familiar tactile attributes helps users quickly understand affordances. Yet the "
"flexibility of the material creates new affordances that supercede those in the physical "
"world, without breaking the rules of physics.\n"
"The fundamentals of light, surface, and movement are key to conveying how objects move, "
"interact, and exist in space and in relation to each other. Realistic lighting shows "
"seams, divides space, and indicates moving parts.\n\n"

"Bold, graphic, intentional.\n\n"

"The foundational elements of print based design typography, grids, space, scale, color, "
"and use of imagery guide visual treatments. These elements do far more than please the "
"eye. They create hierarchy, meaning, and focus. Deliberate color choices, edge to edge "
"imagery, large scale typography, and intentional white space create a bold and graphic "
"interface that immerse the user in the experience.\n"
"An emphasis on user actions makes core functionality immediately apparent and provides "
"waypoints for the user.\n\n"

"Motion provides meaning.\n\n"

"Motion respects and reinforces the user as the prime mover. Primary user actions are "
"inflection points that initiate motion, transforming the whole design.\n"
"All action takes place in a single environment. Objects are presented to the user without "
"breaking the continuity of experience even as they transform and reorganize.\n"
"Motion is meaningful and appropriate, serving to focus attention and maintain continuity. "
"Feedback is subtle yet clear. Transitions are efficient yet coherent.\n\n"

"3D world.\n\n"

"The material environment is a 3D space, which means all objects have x, y, and z "
"dimensions. The z-axis is perpendicularly aligned to the plane of the display, with the "
"positive z-axis extending towards the viewer. Every sheet of material occupies a single "
"position along the z-axis and has a standard 1dp thickness.\n"
"On the web, the z-axis is used for layering and not for perspective. The 3D world is "
"emulated by manipulating the y-axis.\n\n"

"Light and shadow.\n\n"

"Within the material environment, virtual lights illuminate the scene. Key lights create "
"directional shadows, while ambient light creates soft shadows from all angles.\n"
"Shadows in the material environment are cast by these two light sources. In Android "
"development, shadows occur when light sources are blocked by sheets of material at "
"various positions along the z-axis. On the web, shadows are depicted by manipulating the "
"y-axis only. The following example shows the card with a height of 6dp.\n\n"

"Resting elevation.\n\n"

"All material objects, regardless of size, have a resting elevation, or default elevation "
"that does not change. If an object changes elevation, it should return to its resting "
"elevation as soon as possible.\n\n"

"Component elevations.\n\n"

"The resting elevation for a component type is consistent across apps (e.g., FAB elevation "
"does not vary from 6dp in one app to 16dp in another app).\n"
"Components may have different resting elevations across platforms, depending on the depth "
"of the environment (e.g., TV has a greater depth than mobile or desktop).\n\n"

"Responsive elevation and dynamic elevation offsets.\n\n"

"Some component types have responsive elevation, meaning they change elevation in response "
"to user input (e.g., normal, focused, and pressed) or system events. These elevation "
"changes are consistently implemented using dynamic elevation offsets.\n"
"Dynamic elevation offsets are the goal elevation that a component moves towards, relative "
"to the component’s resting state. They ensure that elevation changes are consistent "
"across actions and component types. For example, all components that lift on press have "
"the same elevation change relative to their resting elevation.\n"
"Once the input event is completed or cancelled, the component will return to its resting "
"elevation.\n\n"

"Avoiding elevation interference.\n\n"

"Components with responsive elevations may encounter other components as they move between "
"their resting elevations and dynamic elevation offsets. Because material cannot pass "
"through other material, components avoid interfering with one another any number of ways, "
"whether on a per component basis or using the entire app layout.\n"
"On a component level, components can move or be removed before they cause interference. "
"For example, a floating action button (FAB) can disappear or move off screen before a "
"user picks up a card, or it can move if a snackbar appears.\n"
"On the layout level, design your app layout to minimize opportunities for interference. "
"For example, position the FAB to one side of stream of a cards so the FAB won’t interfere "
"when a user tries to pick up one of cards.\n\n"
</string>
<string name="action_settings">Settings</string>
</resources>
9 changes: 9 additions & 0 deletions app/src/main/res/values/styles.xml
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Expand Up @@ -8,4 +8,13 @@
<item name="colorAccent">@color/colorAccent</item>
</style>

<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>

<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />

<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

</resources>