Allow getting data through intent

Fix display not loading on create

app/src/main/AndroidManifest.xml

@@ -19,6 +19,7 @@
             android:theme="@style/Theme.SimpleBLEReceiver">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+                <action android:name="systems.kumi.simplerfiddemo.NEW_TAG" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>

app/src/main/java/systems/kumi/simpleblereceiver/MainActivity.kt

@@ -10,8 +10,10 @@ import android.bluetooth.le.ScanCallback
 import android.bluetooth.le.ScanResult
 import android.Manifest
 import android.annotation.SuppressLint
+import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
+import android.content.IntentFilter
 import android.content.pm.PackageManager
 import android.os.Bundle
 import android.os.ParcelUuid
@@ -63,6 +65,51 @@ class MainActivity : ComponentActivity() {
             startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT)
         }
 
+        val intentFilter = IntentFilter("systems.kumi.simplerfiddemo.NEW_TAG")
+        registerReceiver(appReceiver, intentFilter)
+
+        setContent {
+            SimpleBLEReceiverTheme {
+                Surface(
+                    modifier = Modifier.fillMaxSize(),
+                    color = MaterialTheme.colorScheme.background
+                ) {
+                    Column {
+                        Text("Waiting for data...")
+
+                        Button(onClick = { emitIntent("sample-id") }) {
+                            Text("Emit sample intent")
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private val appReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context?, intent: Intent?) {
+            val data = intent?.getStringExtra("data")
+            if (data != null) {
+                runOnUiThread {
+                    setContent {
+                        SimpleBLEReceiverTheme {
+                            Surface(
+                                modifier = Modifier.fillMaxSize(),
+                                color = MaterialTheme.colorScheme.background
+                            ) {
+                                Column {
+                                    Text("Received data: $data (from intent)")
+
+                                    Button(onClick = { emitIntent("sample-id") }) {
+                                        Text("Emit sample data")
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
     }
 
     private fun startScanning() {