For beginners, sometimes see the project will have values-v11,values-v14,values-v19 folder, there are dimens,styles and so on. What is the specific representative? I started to touch Android from 2.3, and then one day I came to more than 4.0 systems, I found a lot of V14 folders, and then understand the version of the Android API is related.
VALUES-V11 represents the 11+ device on the API, using Styles.xml in this directory instead of Res/values/styles.xml
VALUES-V14 represents the 14+ device on the API, using Styles.xml in this directory instead of Res/values/styles.xml
VALUES-V19 represents an API 19 + device, using Styles.xml in this directory instead of Res/values/styles.xml
Where API 11+ stands for Android 3.0 +
where API 14+ stands for Android 4.0 +
Where API 19+ stands for Android 4.4 + (can set immersion mode, etc.)
The meaning of the VALUES-V11,VALUES-V14,VALUES-V19 representative in the Android layout file