feat: 检测 Android 设备 PDD 安装状态 (#29)

client/src/android_device_service.py

@@ -10,6 +10,7 @@ from typing import Callable, List, Optional, Sequence
 DEFAULT_ADB_TIMEOUT_SECONDS = 5.0
 DEFAULT_DEVICE_READY_CHECKS = 8
 DEFAULT_DEVICE_READY_INTERVAL_SECONDS = 0.25
+PDD_PACKAGE_NAME = "com.xunmeng.pinduoduo"
 
 
 class AndroidDeviceSearchError(RuntimeError):
@@ -111,6 +112,26 @@ class AndroidDeviceService:
             )
         return enriched
 
+    def is_package_installed(
+        self,
+        serial: str,
+        package_name: str = PDD_PACKAGE_NAME,
+    ) -> bool:
+        """查询指定设备是否安装目标包；ADB 失败时抛出可读异常。"""
+
+        self._validate_saved_serial(serial)
+        if not package_name or any(character.isspace() for character in package_name):
+            raise AndroidDeviceSearchError("应用包名格式不正确")
+
+        result = self._run(
+            ["adb", "-s", serial, "shell", "pm", "path", package_name],
+            "检测 PDD 应用",
+        )
+        return any(
+            line.strip().startswith("package:")
+            for line in (result.stdout or "").splitlines()
+        )
+
     def restore_saved_device(
         self,
         serial: str,