CameraView

对Camera进行了封装。主要扩展的功能有：聚焦，放大缩小（根据手势调整焦距），闪光灯模式切换回调，前置后置摄像头切换，拍照回调，根据设备方向调整拍摄照片的方向

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
.idea		.idea
app		app
gradle/wrapper		gradle/wrapper
.gitignore		.gitignore
README.md		README.md
build.gradle		build.gradle
gradle.properties		gradle.properties
gradlew		gradlew
gradlew.bat		gradlew.bat
settings.gradle		settings.gradle