Merge pull request #16 from myofficework000/network-connection-broadc…

…ast-receiver

Added broadcast receiver to check network connection

app/src/main/AndroidManifest.xml

@@ -2,6 +2,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.abhishek.pathak.kotlin.android.githubcompose">
 
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
 
     <application

app/src/main/java/com/abhishek/pathak/kotlin/android/githubcompose/ui/feature/common/BroadcastReceiver.kt

@@ -0,0 +1,19 @@
+package com.abhishek.pathak.kotlin.android.githubcompose.ui.feature.common
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.net.ConnectivityManager
+
+class BroadcastReceiver(private val onConnectivityChange: (Boolean) -> Unit) : BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+        val isConnected = isNetworkConnected(context)
+        onConnectivityChange(isConnected)
+    }
+    private fun isNetworkConnected(context: Context):Boolean{
+        val connectivityManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+        val networkInfo = connectivityManager.activeNetworkInfo
+        return networkInfo != null && networkInfo.isConnected
+    }
+
+}

app/src/main/java/com/abhishek/pathak/kotlin/android/githubcompose/ui/feature/common/ConnectionSnackBar.kt

@@ -0,0 +1,39 @@
+package com.abhishek.pathak.kotlin.android.githubcompose.ui.feature.common
+
+import androidx.compose.material.Snackbar
+import androidx.compose.material.SnackbarDuration
+import androidx.compose.material.SnackbarHost
+import androidx.compose.material.SnackbarHostState
+import androidx.compose.material.Text
+import androidx.compose.material.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+
+@Composable
+fun ConnectionSnackBar(isConnected: Boolean) {
+    val snackBarHotState = remember {
+        SnackbarHostState()
+    }
+    LaunchedEffect(isConnected) {
+        if(!isConnected){
+            snackBarHotState.showSnackbar(
+                message = "No internet connection",
+                duration = SnackbarDuration.Long
+            )
+        }
+    }
+    SnackbarHost(hostState = snackBarHotState,
+        snackbar = {
+            Snackbar(action = {
+                TextButton(onClick = { snackBarHotState.currentSnackbarData?.dismiss() }) {
+                    Text(text = "Dismiss")
+                }
+            },
+                backgroundColor = Color.Yellow) {
+                Text(text = "No internet connection", color = Color.Black)
+            }
+        })
+}

app/src/main/java/com/abhishek/pathak/kotlin/android/githubcompose/ui/feature/main/MainActivity.kt

@@ -1,16 +1,34 @@
 package com.abhishek.pathak.kotlin.android.githubcompose.ui.feature.main
 
+import android.content.IntentFilter
+import android.net.ConnectivityManager
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Surface
+import com.abhishek.pathak.kotlin.android.githubcompose.ui.feature.common.BroadcastReceiver
+import com.abhishek.pathak.kotlin.android.githubcompose.ui.feature.common.ConnectionSnackBar
 import com.abhishek.pathak.kotlin.android.githubcompose.ui.navigation.AppNavigation
 import com.abhishek.pathak.kotlin.android.githubcompose.ui.theme.GithubComposeTheme
 
 class MainActivity : ComponentActivity() {
+    private val connectivityReceiver = BroadcastReceiver{isConnected ->
+        setContent{
+            GithubComposeTheme {
+                Surface(color = MaterialTheme.colors.background) {
+                    AppNavigation()
+                    ConnectionSnackBar(isConnected = isConnected)
+                }
+            }
+        }
+    }
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        registerReceiver(
+            connectivityReceiver,
+            IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION)
+        )
         setContent {
             GithubComposeTheme {
                 Surface(color = MaterialTheme.colors.background) {
@@ -19,4 +37,9 @@ class MainActivity : ComponentActivity() {
             }
         }
     }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        unregisterReceiver(connectivityReceiver)
+    }
 }