*.iml
.gradle
/local.properties
/.idea/caches
/.idea/libraries
/.idea/modules.xml
/.idea/workspace.xml
/.idea/navEditor.xml
/.idea/assetWizardSettings.xml
.DS_Store
/captures
.externalNativeBuild
.cxx
local.properties

# DJI SDK 子模块 build 目录
/android-sdk-v5-uxsdk/build/
/android-sdk-v5-uxsdk/.gradle/
/android-sdk-v5-mission/build/

# app build 目录
/app/build/

# 删除这行：*/build/
# 改为忽略所有 build，但排除 Opencv
**/build/
!/Opencv/build/           ← 关键：保留 Opencv 的 build 目录