Fix crash in Android tts engine demo. (#2029)

csukuangfj · web-flow · commit ee2b8d0a2804 · 2025-03-20T10:41:52.000+08:00
diff --git a/android/SherpaOnnxTtsEngine/app/src/main/java/com/k2fsa/sherpa/onnx/tts/engine/MainActivity.kt b/android/SherpaOnnxTtsEngine/app/src/main/java/com/k2fsa/sherpa/onnx/tts/engine/MainActivity.kt
@@ -177,8 +177,6 @@ class MainActivity : ComponentActivity() {
                                                 rtfText = ""
                                                 Log.i(TAG, "Started with text $testText")
 
-                                                samplesChannel = Channel<FloatArray>()
-
                                                 CoroutineScope(Dispatchers.IO).launch {
                                                     for (samples in samplesChannel) {
                                                         track.write(
@@ -191,6 +189,10 @@ class MainActivity : ComponentActivity() {
                                                             break
                                                         }
                                                     }
+
+                                                    for (s in samplesChannel) {
+                                                        // drain the channel
+                                                    }
                                                 }
 
                                                 CoroutineScope(Dispatchers.Default).launch {
@@ -219,7 +221,6 @@ class MainActivity : ComponentActivity() {
                                                         audioDuration,
                                                         elapsed / audioDuration
                                                     )
-                                                    samplesChannel.close()
 
                                                     val filename =
                                                         application.filesDir.absolutePath + "/generated.wav"

Original file line number	Diff line number	Diff line change
`@@ -177,8 +177,6 @@ class MainActivity : ComponentActivity() {`
`177`	`177`	`rtfText = ""`
`178`	`178`	`Log.i(TAG, "Started with text $testText")`
`179`	`179`
`180`		`- samplesChannel = Channel<FloatArray>()`
`181`		`-`
`182`	`180`	`CoroutineScope(Dispatchers.IO).launch {`
`183`	`181`	`for (samples in samplesChannel) {`
`184`	`182`	`track.write(`
`@@ -191,6 +189,10 @@ class MainActivity : ComponentActivity() {`
`191`	`189`	`break`
`192`	`190`	`}`
`193`	`191`	`}`
	`192`	`+`
	`193`	`+ for (s in samplesChannel) {`
	`194`	`+ // drain the channel`
	`195`	`+ }`
`194`	`196`	`}`
`195`	`197`
`196`	`198`	`CoroutineScope(Dispatchers.Default).launch {`
`@@ -219,7 +221,6 @@ class MainActivity : ComponentActivity() {`
`219`	`221`	`audioDuration,`
`220`	`222`	`elapsed / audioDuration`
`221`	`223`	`)`
`222`		`- samplesChannel.close()`
`223`	`224`
`224`	`225`	`val filename =`
`225`	`226`	`application.filesDir.absolutePath + "/generated.wav"`