Showing number of meteorites

mholecy · Dec 7, 2018 · e7c28e0 · e7c28e0
1 parent 21cc9a5
commit e7c28e0
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Showing 9 changed files with 86 additions and 7 deletions.
diff --git a/app/src/main/java/sk/mholecy/meteorites/MainActivity.kt b/app/src/main/java/sk/mholecy/meteorites/MainActivity.kt
@@ -1,6 +1,7 @@
 package sk.mholecy.meteorites
 
 import android.os.Bundle
+import android.view.Menu
 import androidx.appcompat.app.AppCompatActivity
 import androidx.databinding.DataBindingUtil
 import androidx.navigation.NavController
@@ -18,4 +19,9 @@ class MainActivity : AppCompatActivity() {
         supportActionBar?.setDisplayHomeAsUpEnabled(true)
         navController = findNavController(R.id.meteorites_nav_fragment)
     }
+
+    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+        menuInflater.inflate(R.menu.menu_meteorites_fragment, menu)
+        return true
+    }
 }
diff --git a/app/src/main/java/sk/mholecy/meteorites/common/di/viewModelModule.kt b/app/src/main/java/sk/mholecy/meteorites/common/di/viewModelModule.kt
@@ -12,7 +12,8 @@ internal val viewModelModule = module {
     viewModel {
         MeteoritesListViewModel(
             get<MeteoritesDatabaseSyncService>(),
-            androidApplication()
+            androidApplication(),
+            get<MeteoritesDao>()
         )
     }
     viewModel {

diff --git a/app/src/main/java/sk/mholecy/meteorites/common/extensions/androidExtensions.kt b/app/src/main/java/sk/mholecy/meteorites/common/extensions/androidExtensions.kt
@@ -2,9 +2,20 @@ package sk.mholecy.meteorites.common.extensions
 
 import android.content.Context
 import android.net.ConnectivityManager
+import androidx.annotation.ColorRes
+import androidx.core.content.ContextCompat
+import com.google.android.material.snackbar.Snackbar
 
 fun Context.isOnline(): Boolean {
     val connectivityManager = this.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
     val activeNetwork = connectivityManager.activeNetworkInfo
     return activeNetwork?.isConnected == true
 }
+
+fun Snackbar.setBackgroundColor(@ColorRes colorId: Int) {
+    this.view.setBackgroundColor(ContextCompat.getColor(this.context, colorId))
+}
+
+fun Snackbar.setActionTextColorId(@ColorRes colorId: Int) {
+    this.setActionTextColor(ContextCompat.getColor(this.context, colorId))
+}
diff --git a/app/src/main/java/sk/mholecy/meteorites/meteorites/database/dao/MeteoritesDao.kt b/app/src/main/java/sk/mholecy/meteorites/meteorites/database/dao/MeteoritesDao.kt
@@ -27,4 +27,7 @@ interface MeteoritesDao {
 
     @Query("SELECT * from meteorites WHERE id = :meteoriteId")
     fun getMeteorite(meteoriteId: Long): LiveData<DbMeteoriteModel>
+
+    @Query("SELECT count(*) from meteorites")
+    fun getMeteoritesCount(): LiveData<Long>
 }
diff --git a/app/src/main/java/sk/mholecy/meteorites/meteorites/ui/list/MeteoritesListFragment.kt b/app/src/main/java/sk/mholecy/meteorites/meteorites/ui/list/MeteoritesListFragment.kt
@@ -2,20 +2,26 @@ package sk.mholecy.meteorites.meteorites.ui.list
 
 import android.os.Bundle
 import android.view.LayoutInflater
+import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
-import kotlinx.android.synthetic.main.fragment_meteorites_list.view.*
+import com.google.android.material.snackbar.Snackbar
 import org.koin.android.ext.android.inject
 import org.koin.androidx.viewmodel.ext.android.viewModel
+import sk.mholecy.meteorites.R
+import sk.mholecy.meteorites.common.extensions.setActionTextColorId
+import sk.mholecy.meteorites.common.extensions.setBackgroundColor
 import sk.mholecy.meteorites.databinding.FragmentMeteoritesListBinding
 import sk.mholecy.meteorites.meteorites.ui.list.adapter.MeteoritesAdapter
 
 class MeteoritesListFragment : Fragment() {
     private val meteoritesViewModel: MeteoritesListViewModel by viewModel()
     private val meteoritesListAdapter: MeteoritesAdapter by inject()
+    private lateinit var rootView: View
+    private var meteoriteCountSnackBar: Snackbar? = null
 
     override fun onCreateView(
         inflater: LayoutInflater,
@@ -24,16 +30,47 @@ class MeteoritesListFragment : Fragment() {
     ): View? {
         val binding = FragmentMeteoritesListBinding.inflate(inflater, container, false)
         val activity = activity as AppCompatActivity
-        activity.setSupportActionBar(binding.meteoritesList.toolbar)
+        activity.setSupportActionBar(binding.toolbar)
         binding.meteoritesList.adapter = meteoritesListAdapter
+        setHasOptionsMenu(true)
         subscribeUi()
-        return binding.root
+        rootView = binding.root
+        return rootView
     }
 
     private fun subscribeUi() {
         meteoritesViewModel.meteorites.observe(viewLifecycleOwner, Observer { meteorites ->
             meteoritesListAdapter.submitList(meteorites)
         })
+        meteoritesViewModel.meteoritesCount.observe(viewLifecycleOwner, Observer {
+            meteoriteCountSnackBar?.setText(
+                String.format(getString(R.string.meteorites_count_message), it)
+            )
+        })
         meteoritesViewModel.fetchMeteorites()
     }
+
+    override fun onOptionsItemSelected(item: MenuItem) = when (item.itemId) {
+        R.id.action_show_meteorites_count -> {
+            createMeteoriteCountSnackBar()
+            true
+        }
+        else -> {
+            super.onOptionsItemSelected(item)
+        }
+    }
+
+    private fun createMeteoriteCountSnackBar() {
+        meteoriteCountSnackBar = Snackbar.make(
+            rootView,
+            String.format(getString(R.string.meteorites_count_message), meteoritesViewModel.meteoritesCount.value),
+            Snackbar.LENGTH_INDEFINITE
+        )
+        meteoriteCountSnackBar!!.setAction(getString(R.string.snackbar_acknowledge)) {
+            meteoriteCountSnackBar!!.dismiss()
+        }
+        meteoriteCountSnackBar!!.setBackgroundColor(R.color.primaryLightColor)
+        meteoriteCountSnackBar!!.setActionTextColorId(R.color.secondaryLightColor)
+        meteoriteCountSnackBar!!.show()
+    }
 }
diff --git a/app/src/main/java/sk/mholecy/meteorites/meteorites/ui/list/MeteoritesListViewModel.kt b/app/src/main/java/sk/mholecy/meteorites/meteorites/ui/list/MeteoritesListViewModel.kt
@@ -5,13 +5,16 @@ import androidx.lifecycle.ViewModel
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 import sk.mholecy.meteorites.common.extensions.isOnline
+import sk.mholecy.meteorites.meteorites.database.dao.MeteoritesDao
 import sk.mholecy.meteorites.meteorites.service.MeteoritesDatabaseSyncService
 
 class MeteoritesListViewModel(
     private val meteoritesService: MeteoritesDatabaseSyncService,
-    private val context: Context
+    private val context: Context,
+    meteoritesDao: MeteoritesDao
 ) : ViewModel() {
     val meteorites = meteoritesService.meteorites
+    val meteoritesCount = meteoritesDao.getMeteoritesCount()
 
     fun fetchMeteorites() {
         if (context.isOnline()) {

diff --git a/app/src/main/java/sk/mholecy/meteorites/meteorites/ui/list/adapter/MeteoritesAdapter.kt b/app/src/main/java/sk/mholecy/meteorites/meteorites/ui/list/adapter/MeteoritesAdapter.kt
@@ -10,6 +10,7 @@ import androidx.paging.PagedListAdapter
 import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.snackbar.Snackbar
 import sk.mholecy.meteorites.R
+import sk.mholecy.meteorites.common.extensions.setBackgroundColor
 import sk.mholecy.meteorites.databinding.ItemMeteoriteBinding
 import sk.mholecy.meteorites.meteorites.database.model.DbMeteoriteModel
 import sk.mholecy.meteorites.meteorites.ui.list.MeteoritesListFragmentDirections
@@ -44,8 +45,13 @@ class MeteoritesAdapter(
                     MeteoritesListFragmentDirections.ActionMeteoritesListFragmentToMeteoriteMapFragment(meteorite.id)
                 it.findNavController().navigate(direction)
             } else {
-                Snackbar.make(it, it.context.getString(R.string.meteorite_location_unknown), Snackbar.LENGTH_SHORT)
-                    .show()
+                val snackBar = Snackbar.make(
+                    it,
+                    it.context.getString(R.string.meteorite_location_unknown),
+                    Snackbar.LENGTH_SHORT
+                )
+                snackBar.setBackgroundColor(R.color.primaryLightColor)
+                snackBar.show()
             }
         }
     }

diff --git a/app/src/main/res/menu/menu_meteorites_fragment.xml b/app/src/main/res/menu/menu_meteorites_fragment.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+            android:id="@+id/action_show_meteorites_count"
+            android:icon="@drawable/ic_meteorite_color"
+            android:title="@string/action_show_meteorites_count"
+            app:showAsAction="always"/>
+</menu>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
@@ -1,4 +1,7 @@
 <resources>
     <string name="app_name">Meteorites</string>
     <string name="meteorite_location_unknown">Location of meteorite is unknown</string>
+    <string name="snackbar_acknowledge">Got it</string>
+    <string name="meteorites_count_message">%d meteorites have fallen since 2011</string>
+    <string name="action_show_meteorites_count">Show meteorites count</string>
 </resources>