Added intent service demo

app/src/main/java/com/example/jetpack_compose_all_in_one/application_components/services/IntentServiceDemo.kt

@@ -0,0 +1,55 @@
+package com.example.jetpack_compose_all_in_one.application_components.services
+
+import android.app.IntentService
+import android.content.Context
+import android.content.Intent
+import android.util.Log
+import com.example.jetpack_compose_all_in_one.application_components.services.IntentServiceDemo.Companion.URL_OF_DOWNLOAD_FILE
+
+class IntentServiceDemo : IntentService("IntentServiceDemo") {
+
+    companion object {
+        const val ACTION_DOWNLOAD_FILE = "com.example.intentdemo.action.DOWNLOAD_FILE"
+        const val EXTRA_FILE_URL = "com.example.intentdemo.extra.FILE_URL"
+        const val URL_OF_DOWNLOAD_FILE = "https://example.com/samplefile.txt"
+    }
+
+    override fun onHandleIntent(intent: Intent?) {
+        when (intent?.action) {
+            ACTION_DOWNLOAD_FILE -> {
+                val fileUrl = intent.getStringExtra(EXTRA_FILE_URL)
+                downloadFile(fileUrl)
+            }
+        }
+    }
+
+    private fun downloadFile(fileUrl: String?) {
+        // Simulate a long-running task such as downloading a file
+        Log.d("IntentServiceDemo", "Downloading file from $fileUrl")
+
+        // Simulate the download process
+        for (progress in 0..100 step 10) {
+            // Update progress or perform other tasks
+            Log.d("IntentServiceDemo", "Progress: $progress%")
+            try {
+                Thread.sleep(1000) // Simulate time-consuming task
+            } catch (e: InterruptedException) {
+                Thread.currentThread().interrupt()
+            }
+        }
+
+        // Download completed
+        Log.d("IntentServiceDemo", "Download complete for file from $fileUrl")
+
+        // You can send a broadcast or update UI here if needed
+        // For simplicity, let's log the completion message.
+    }
+}
+
+fun invokeIntentService(context: Context) {
+    val intent = Intent(context, IntentServiceDemo::class.java).apply {
+        action = IntentServiceDemo.ACTION_DOWNLOAD_FILE
+        putExtra(IntentServiceDemo.EXTRA_FILE_URL, URL_OF_DOWNLOAD_FILE)
+    }
+    context.startService(intent)
+}

app/src/main/java/com/example/jetpack_compose_all_in_one/third_party_lib/async_task/AsyncTaskDemo.kt

@@ -0,0 +1,42 @@
+package com.example.jetpack_compose_all_in_one.third_party_lib.async_task
+
+import android.annotation.SuppressLint
+import android.os.AsyncTask
+import android.os.Handler
+import android.os.Looper
+import android.os.Message
+
+fun main() {
+    AsyncTaskDemo().execute()
+}
+
+class AsyncTaskDemo : AsyncTask<Int, Int, String>() {
+
+    override fun onPreExecute() {
+        super.onPreExecute()
+        //handle your UI task
+    }
+
+
+    override fun doInBackground(vararg p0: Int?): String {
+        //handle your background task
+
+        val handler = object : Handler(Looper.getMainLooper()) {
+            override fun handleMessage(msg: Message) {
+                // Update UI with the calculation result here
+            }
+        }
+        return ""
+    }
+
+    @SuppressLint("WrongThread")
+    override fun onProgressUpdate(vararg values: Int?) {
+        super.onProgressUpdate(*values)
+        publishProgress(values.size)
+    }
+
+    override fun onPostExecute(result: String?) {
+        super.onPostExecute(result)
+        //handle the UI task after finishing the background task...
+    }
+}