File ->Settings -> Editor -> General -> Auto import
把Optimize imports on the fly和Add unambiguous imports on the fly勾选上。
步骤如图所示:
勾选这两项即可

File ->Settings -> Editor -> General -> Auto import
把Optimize imports on the fly和Add unambiguous imports on the fly勾选上。
步骤如图所示:
勾选这两项即可