How to modify the SDK version required for running Android Projects

To replace the SDK version of an android project, follow these steps:
1. Right-click the project ---> properties ----> resource -----> Android, and select the Android version in the project bulid target dialog box.
2. Resource ---> addlibraries on the right of the libraries dialog box ---> Android classpath container ----> next ---> select the project name.

3. If you are not sure whether the SDK version has been modified successfully, let's look at androidmanifest. <uses-SDK Android: minsdkversion = "3"/> is found in the XML file, indicating that the SDK is compatible with Android 1.5 at the lowest level and whether the modification is successful.

When I encounter this problem, I can use the first method.