From c6093ce97c4575a31b15f4d996ba9525508e8797 Mon Sep 17 00:00:00 2001
From: tobias ns <13521090@std.stei.itb.ac.id>
Date: Thu, 4 Apr 2024 10:23:08 +0700
Subject: [PATCH] feat: networksense
---
app/src/main/AndroidManifest.xml | 1 +
.../ConnectivityObserver.kt | 11 ++++++
.../if3210_2024_android_aab/MainActivity.kt | 25 +++++++++++++
.../NetworkConnectivityObserver.kt | 37 +++++++++++++++++++
4 files changed, 74 insertions(+)
create mode 100644 app/src/main/java/com/example/if3210_2024_android_aab/ConnectivityObserver.kt
create mode 100644 app/src/main/java/com/example/if3210_2024_android_aab/NetworkConnectivityObserver.kt
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6d025f9..b03f2f0 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,6 +2,7 @@
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
+ <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET"/>
diff --git a/app/src/main/java/com/example/if3210_2024_android_aab/ConnectivityObserver.kt b/app/src/main/java/com/example/if3210_2024_android_aab/ConnectivityObserver.kt
new file mode 100644
index 0000000..e2eff28
--- /dev/null
+++ b/app/src/main/java/com/example/if3210_2024_android_aab/ConnectivityObserver.kt
@@ -0,0 +1,11 @@
+package com.example.if3210_2024_android_aab
+
+import kotlinx.coroutines.flow.Flow
+
+interface ConnectivityObserver {
+ fun observe(): Flow<Status>
+
+ enum class Status {
+ Available, Unavailable, Lost
+ }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/if3210_2024_android_aab/MainActivity.kt b/app/src/main/java/com/example/if3210_2024_android_aab/MainActivity.kt
index ecb252f..6f74a70 100644
--- a/app/src/main/java/com/example/if3210_2024_android_aab/MainActivity.kt
+++ b/app/src/main/java/com/example/if3210_2024_android_aab/MainActivity.kt
@@ -10,8 +10,11 @@ import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.google.android.material.floatingactionbutton.FloatingActionButton
import androidx.activity.ComponentActivity
+import androidx.appcompat.app.AlertDialog
import androidx.fragment.app.Fragment
import com.google.android.material.bottomnavigation.BottomNavigationView
+import kotlinx.coroutines.MainScope
+import kotlinx.coroutines.launch
class MainActivity : AppCompatActivity() {
// val transactionList = ArrayList<Transaction>()
@@ -21,7 +24,9 @@ class MainActivity : AppCompatActivity() {
// TransactionViewModelFactory((application as TransactionApplication).repository)
// }
+ private lateinit var connectivityObserver: ConnectivityObserver
private lateinit var bottomNavigationView: BottomNavigationView
+ private val scope = MainScope()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
if (SharedPreference.getEmail(this).isNullOrBlank() || SharedPreference.getToken(this).isNullOrBlank()) {
@@ -29,6 +34,18 @@ class MainActivity : AppCompatActivity() {
startActivity(intent)
}
+ connectivityObserver = NetworkConnectivityObserver(applicationContext)
+
+ scope.launch {
+ connectivityObserver.observe().collect { status ->
+ if (status == ConnectivityObserver.Status.Available) {
+ showAlertDialog("Network Available", "You are now connected to the network")
+ } else {
+ showAlertDialog("Network Unavailable", "You are now disconnected from the network")
+ }
+ }
+ }
+
// mRecyclerView.setHasFixedSize(true)
// mRecyclerView.layoutManager = LinearLayoutManager(this)
//
@@ -87,6 +104,14 @@ class MainActivity : AppCompatActivity() {
replaceFragment(TransactionFragment())
}
+ private fun showAlertDialog(title: String, message: String) {
+ AlertDialog.Builder(this)
+ .setTitle(title)
+ .setMessage(message)
+ .setPositiveButton("OK", null)
+ .show()
+ }
+
// override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
// super.onActivityResult(requestCode, resultCode, data)
//
diff --git a/app/src/main/java/com/example/if3210_2024_android_aab/NetworkConnectivityObserver.kt b/app/src/main/java/com/example/if3210_2024_android_aab/NetworkConnectivityObserver.kt
new file mode 100644
index 0000000..bbf0e22
--- /dev/null
+++ b/app/src/main/java/com/example/if3210_2024_android_aab/NetworkConnectivityObserver.kt
@@ -0,0 +1,37 @@
+package com.example.if3210_2024_android_aab
+
+import android.content.Context
+import android.net.ConnectivityManager
+import android.net.Network
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.launch
+
+class NetworkConnectivityObserver (
+ private val context : Context
+) : ConnectivityObserver {
+ private val connectivityManager =
+ context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+ override fun observe(): Flow<ConnectivityObserver.Status> {
+ return callbackFlow {
+ val callback = object : ConnectivityManager.NetworkCallback() {
+ override fun onAvailable(network: Network) {
+ super.onAvailable(network)
+ launch { send(ConnectivityObserver.Status.Available) }
+ }
+
+ override fun onLost(network: Network) {
+ super.onLost(network)
+ launch { send(ConnectivityObserver.Status.Lost) }
+ }
+ }
+
+ connectivityManager.registerDefaultNetworkCallback(callback)
+ awaitClose {
+ connectivityManager.unregisterNetworkCallback(callback)
+ }
+ }.distinctUntilChanged()
+ }
+}
\ No newline at end of file
--
GitLab