From 965bea0adf16acf5a34977822c9490015d236fdf Mon Sep 17 00:00:00 2001
From: Nolan Darilek <nolan@thewordnerd.info>
Date: Tue, 29 Dec 2020 14:10:39 -0600
Subject: [PATCH] TTS seems to initialize now.

---
 Cargo.toml                                    |  3 ++-
 .../app/src/main/java/rs/tts/MainActivity.kt  |  9 ++++++++-
 examples/android/src/lib.rs                   |  1 +
 src/backends/android.rs                       | 19 +++++++++++++++----
 4 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 16cfdc2..9624cd7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,4 +41,5 @@ wasm-bindgen = "0.2"
 web-sys = { version = "0.3", features = ["EventTarget", "SpeechSynthesis", "SpeechSynthesisErrorCode", "SpeechSynthesisErrorEvent", "SpeechSynthesisEvent", "SpeechSynthesisUtterance", "Window", ] }
 
 [target.'cfg(target_os="android")'.dependencies]
-jni = "0.18"
\ No newline at end of file
+jni = "0.18"
+ndk-glue = "0.2"
\ No newline at end of file
diff --git a/examples/android/app/src/main/java/rs/tts/MainActivity.kt b/examples/android/app/src/main/java/rs/tts/MainActivity.kt
index 2b58854..6b75440 100644
--- a/examples/android/app/src/main/java/rs/tts/MainActivity.kt
+++ b/examples/android/app/src/main/java/rs/tts/MainActivity.kt
@@ -1,8 +1,15 @@
 package rs.tts
 
 import android.app.NativeActivity
+import android.speech.tts.TextToSpeech
 import android.speech.tts.TextToSpeech.OnInitListener 
 
 class MainActivity : NativeActivity(), OnInitListener {
-    override fun onInit(status:Int) {}
+    override fun onInit(status:Int) {
+        if(status == TextToSpeech.SUCCESS) {
+            println("Successfully initialized TTS!")
+        } else {
+            println("Failed to initialize TTS.")
+        }
+    }
 }
\ No newline at end of file
diff --git a/examples/android/src/lib.rs b/examples/android/src/lib.rs
index 8a256d6..87014cc 100644
--- a/examples/android/src/lib.rs
+++ b/examples/android/src/lib.rs
@@ -62,5 +62,6 @@ fn run() -> Result<(), Error> {
 
 #[cfg_attr(target_os = "android", ndk_glue::main(backtrace = "on"))]
 pub fn main() {
+    println!("xxxx In library");
     run().expect("Failed to run");
 }
diff --git a/src/backends/android.rs b/src/backends/android.rs
index 9e3f842..1caee9a 100644
--- a/src/backends/android.rs
+++ b/src/backends/android.rs
@@ -1,6 +1,7 @@
 #[cfg(target_os = "android")]
 use std::sync::Mutex;
 
+use jni::objects::JValue;
 use lazy_static::lazy_static;
 use log::info;
 
@@ -11,25 +12,35 @@ lazy_static! {
 }
 
 #[derive(Clone, Debug)]
-pub(crate) struct Android(BackendId);
+pub(crate) struct Android {
+    id: BackendId,
+}
 
 impl Android {
     pub(crate) fn new() -> Result<Self, Error> {
         info!("Initializing Android backend");
         let mut backend_id = NEXT_BACKEND_ID.lock().unwrap();
-        let bid = BackendId::Android(*backend_id);
+        let id = BackendId::Android(*backend_id);
         *backend_id += 1;
         let native_activity = ndk_glue::native_activity();
         let vm_ptr = native_activity.vm();
         let vm = unsafe { jni::JavaVM::from_raw(vm_ptr) }?;
         let env = vm.attach_current_thread()?;
-        Ok(Self(bid))
+        let tts = env.new_object(
+            "android/speech/tts/TextToSpeech",
+            "(Landroid/content/Context;Landroid/speech/tts/TextToSpeech$OnInitListener;)V",
+            &[
+                native_activity.activity().into(),
+                native_activity.activity().into(),
+            ],
+        )?;
+        Ok(Self { id })
     }
 }
 
 impl Backend for Android {
     fn id(&self) -> Option<BackendId> {
-        Some(self.0)
+        Some(self.id)
     }
 
     fn supported_features(&self) -> Features {