android: fix PTT button — Box+pointerInput(hasMicPerm) instead of IconButton+onClick conflict

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/components/MessageBubble.kt

@@ -185,35 +185,34 @@ fun InputBar(
             }
         } else {
             /* Idle: PTT + send */
-            IconButton(
-                onClick = {
-                    if (!hasMicPerm) { permLauncher.launch(Manifest.permission.RECORD_AUDIO); return@IconButton }
-                },
-                enabled = true,
-                modifier = Modifier.pointerInput(Unit) {
+            Box(
+                modifier = Modifier
+                    .size(48.dp)
+                    .pointerInput(hasMicPerm) {
                         awaitPointerEventScope {
-                        /* wait for the first down */
-                        var event = awaitPointerEvent()
-                        var change = event.changes.firstOrNull() ?: return@awaitPointerEventScope
-                        if (!change.pressed) return@awaitPointerEventScope
-                        change.consume()
+                            val down = awaitPointerEvent()
+                            val ch = down.changes.firstOrNull() ?: return@awaitPointerEventScope
+                            if (!ch.pressed) return@awaitPointerEventScope
+                            ch.consume()
+
+                            if (!hasMicPerm) {
+                                permLauncher.launch(Manifest.permission.RECORD_AUDIO)
+                                return@awaitPointerEventScope
+                            }
 
-                        if (!hasMicPerm) return@awaitPointerEventScope
                             onPttPressed()
                             var locked = false
                             var totalDragY = 0f
-                        var lastY = change.position.y
+                            var lastY = ch.position.y
 
                             while (true) {
-                            event = awaitPointerEvent()
-                            change = event.changes.firstOrNull() ?: break
+                                val event = awaitPointerEvent()
+                                val change = event.changes.firstOrNull() ?: break
                                 if (change.pressed) {
                                     val dy = change.position.y - lastY
                                     lastY = change.position.y
                                     totalDragY += dy
-                                if (totalDragY < -lockThresholdPx && !locked) {
-                                    locked = true; onPttLock()
-                                }
+                                    if (totalDragY < -lockThresholdPx && !locked) { locked = true; onPttLock() }
                                     change.consume()
                                 } else {
                                     change.consume(); break
@@ -221,11 +220,14 @@ fun InputBar(
                             }
                             onPttReleased()
                         }
-                }
+                    },
+                contentAlignment = Alignment.Center
             ) {
                 Text("\uD83C\uDFA4", fontSize = 20.sp)
             }
 
+            Spacer(Modifier.width(4.dp))
+
             Button(onClick = onSend, enabled = enabled && text.isNotBlank()) {
                 Text("Send")
             }