catch exception when _run_watchers (#898)

* catch exception when _run_watchers

* update setup.cfg

---------

Co-authored-by: yangyang <yangyangjishu@bluecity.com>

setup.cfg

@@ -1,11 +1,11 @@
 [metadata]
 name = uiautomator2
 author = codeskyblue
-author-email = codeskyblue@gmail.com
+author_email = codeskyblue@gmail.com
 summary = Python Wrapper for Google Android UiAutomator2 test tool
 license = MIT
-description-file = ABOUT.rst
-home-page = https://github.com/openatx/uiautomator2
+description_file = ABOUT.rst
+home_page = https://github.com/openatx/uiautomator2
 # all classifier can be found in https://pypi.python.org/pypi?%3Aaction=list_classifiers
 classifier =
     Development Status :: 4 - Beta
@@ -32,5 +32,5 @@ image =
 
 [entry_points]
 # https://docs.openstack.org/pbr/3.1.1/#entry-points
-console_scripts = 
+console_scripts =
    uiautomator2 = uiautomator2.__main__:main

uiautomator2/watcher.py

@@ -53,7 +53,7 @@ def wait_stable(self, seconds: float = 5.0, timeout: float = 60.0):
         Args:
             seconds: stable seconds
             timeout: raise error when wait stable timeout
-            
+
         Raises:
             TimeoutError
         """
@@ -236,7 +236,11 @@ def run(self, source: Optional[str] = None):
         """
         if self.triggering:  # avoid to run watcher when run watcher
             return False
-        return self._run_watchers(source=source)
+        try:
+            return self._run_watchers(source=source)
+        except Exception as e:
+            self.logger.warning("_run_watchers exception: %s", e)
+            return False
 
     def _run_watchers(self, source=None) -> bool:
         """