omkar-tenkale · June 3, 2023 10:30 · Jun 3, 2023
diff --git a/FaultyCoroutineLaunchBuilder.kt b/FaultyCoroutineLaunchBuilder.kt
@@ -0,0 +1,30 @@
+fun launch(block: suspend () -> Unit) {
+    val callback = object : Continuation<Unit> {
+        override val context: CoroutineContext = EmptyCoroutineContext
+        override fun resumeWith(result: Result<Unit>) {}
+    }
+    block.createCoroutineUnintercepted(callback).resumeWith(Result.success(Unit))
+}
+
+...
+
+downloadButton.setOnClickListener{
+    launch {
+        textView.text = "Downloading file"
+        download("example.com/file.txt", "/sdcard/file.txt")
+        textView.text = "Download Complete"
+    }
+}
+
+...
+
+suspend fun download(url: String, filePath: String) {
+    suspendCoroutineUninterceptedOrReturn<Unit> { cont ->
+        //Download in a background thread
+        thread {
+            URL(url).readText().writeTo(File(filePath))
+            cont.resumeWith(Result.success(Unit))
+        }
+        COROUTINE_SUSPENDED
+    }
+}