• Checkbox自定义定义button样式 button=@drawble/item，去掉内边距用minWidth=0 minheight=0

• Glide的FitCenter()图像将完全显示，可能不会填充满imageview，CenterCrop()将完全填充，可能不会完全显示

• 阿里云镜像 maven { url 'https://maven.aliyun.com/repository/releases'} maven { url 'https://maven.aliyun.com/repository/google'} maven { url 'https://maven.aliyun.com/repository/central'} maven { url 'https://maven.aliyun.com/repository/gradle-plugin'} maven { url 'https://maven.aliyun.com/repository/public'}