Add the app notifications filter

app/src/main/java/com/tommasoberlose/anotherwidget/ui/viewmodels/AppNotificationsViewModel.kt

@@ -0,0 +1,39 @@
+package com.tommasoberlose.anotherwidget.ui.viewmodels
+
+import android.app.Application
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.content.pm.ResolveInfo
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.viewModelScope
+import com.chibatching.kotpref.livedata.asLiveData
+import com.tommasoberlose.anotherwidget.global.Preferences
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+
+class AppNotificationsViewModel(application: Application) : AndroidViewModel(application) {
+
+    val pm: PackageManager by lazy { application.packageManager }
+    val appList: MutableLiveData<List<ResolveInfo>> = MutableLiveData()
+    val searchInput: MutableLiveData<String> = MutableLiveData("")
+    var appNotificationsFilter = Preferences.asLiveData(Preferences::appNotificationsFilter)
+
+    init {
+        viewModelScope.launch(Dispatchers.IO) {
+            val mainIntent = Intent(Intent.ACTION_MAIN, null).apply {
+                addCategory(Intent.CATEGORY_LAUNCHER)
+            }
+
+            val app = application.packageManager.queryIntentActivities(mainIntent, 0)
+            val sortedApp = app.sortedWith(Comparator { app1: ResolveInfo, app2: ResolveInfo ->
+                app1.loadLabel(pm).toString().compareTo(app2.loadLabel(pm).toString())
+            })
+            withContext(Dispatchers.Main) {
+                appList.postValue(sortedApp)
+            }
+        }
+    }
+}