fix stackoverflow when dump (#1023)

Author: codeskyblue

uiautomator2/__init__.py

@@ -262,7 +262,7 @@ def screenshot(self, filename: Optional[str] = None, format="pillow", display_id
             return
         return image_convert(pil_img, format)
 
-    def dump_hierarchy(self, compressed=False, pretty=False, max_depth: int = None) -> str:
+    def dump_hierarchy(self, compressed=False, pretty=False, max_depth: Optional[int] = None) -> str:
         """
         Dump window hierarchy
 
@@ -275,6 +275,8 @@ def dump_hierarchy(self, compressed=False, pretty=False, max_depth: int = None)
             xml content
         """
         try:
+            if max_depth is None:
+                max_depth = self.settings['max_depth']
             content = self._do_dump_hierarchy(compressed, max_depth)
         except HierarchyEmptyError: # pragma: no cover
             logger.warning("dump empty, return empty xml")

uiautomator2/assets/sync.sh

@@ -5,7 +5,7 @@ set -e
 
 APK_VERSION=$(cat ../version.py| grep apk_version | awk '{print $NF}')
 APK_VERSION=${APK_VERSION//[\"\']}
-JAR_VERSION="0.1.0"
+JAR_VERSION="0.1.2"
 
 cd "$(dirname $0)"
 

uiautomator2/settings.py

@@ -18,6 +18,7 @@ def __init__(self, d):
             "operation_delay": (0, 0),
             "operation_delay_methods": ["click", "swipe"],
             "fallback_to_blank_screenshot": False,
+            "max_depth": 50,
         }
 
         self._deprecated_props = {