fix(core): fix the fingerprint unlock issue (#263)

Author: somebodyLi

core/src/trezor/lvglui/scrs/common.py

@@ -527,10 +527,16 @@ def read_content(self) -> list[str]:
             return [self.layout_title or ""] + [self.layout_subtitle or ""]
 
     def destroy(self, delay_ms=400):
-        self.del_delayed(delay_ms)
+        try:
+            self.del_delayed(delay_ms)
+        except Exception:
+            pass
 
     def _delete_cb(self, _anim):
-        self.del_delayed(100)
+        try:
+            self.del_delayed(100)
+        except Exception:
+            pass
 
     def _load_anim_hor(self):
         Anim(

core/src/trezor/lvglui/scrs/lockscreen.py

@@ -14,10 +14,12 @@
 class LockScreen(Screen):
     @classmethod
     def retrieval(cls) -> tuple[bool, "LockScreen" | None]:
-        if hasattr(cls, "_instance") and cls._instance.is_visible():
-            return True, cls._instance
-        else:
-            return False, None
+        try:
+            if cls._instance.is_visible():
+                return True, cls._instance
+        except Exception:
+            pass
+        return False, None
 
     def __init__(self, device_name, ble_name="", dev_state=None):
         lockscreen = device.get_homescreen()

core/src/trezor/lvglui/scrs/pinscreen.py

@@ -76,11 +76,12 @@ class InputNum(FullSizeWindow):
 
     @classmethod
     def get_window_if_visible(cls) -> "InputNum" | None:
-        return (
-            cls._instance
-            if (cls._instance is not None and cls._instance.is_visible())
-            else None
-        )
+        try:
+            if cls._instance is not None and cls._instance.is_visible():
+                return cls._instance
+        except Exception:
+            pass
+        return None
 
     def __init__(self, **kwargs):
         super().__init__(
@@ -169,11 +170,12 @@ class InputPin(FullSizeWindow):
 
     @classmethod
     def get_window_if_visible(cls) -> "InputPin" | None:
-        return (
-            cls._instance
-            if (cls._instance is not None and cls._instance.is_visible())
-            else None
-        )
+        try:
+            if cls._instance is not None and cls._instance.is_visible():
+                return cls._instance
+        except Exception:
+            pass
+        return None
 
     def __init__(self, **kwargs):
         super().__init__(
@@ -250,7 +252,10 @@ def _show_fingerprint_prompt_if_necessary(self):
 
     def refresh_fingerprint_prompt(self):
         if hasattr(self, "fingerprint_prompt"):
-            self.fingerprint_prompt.delete()
+            try:
+                self.fingerprint_prompt.delete()
+            except Exception:
+                pass
 
     def on_event(self, event_obj):
         code = event_obj.code