android配置activity

android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.andclient/com.example.andclient.newClient}; have you declared this activity in your AndroidManifest.xml?

建立Activity以後還需在AndroidMainfest.xml 文件中進行配置，若是沒有配置，而在程序中啓動了activity,就會拋出上面的異常。