java - java（android）中的ImageIO类这个错误是什么？

Question

错误是：

02-22 22:58:11.208: ERROR/AndroidRuntime(498): FATAL EXCEPTION: main
02-22 22:58:11.208: ERROR/AndroidRuntime(498): java.lang.NoClassDefFoundError: javax.imageio.ImageIO
02-22 22:58:11.208: ERROR/AndroidRuntime(498):     at aynoo.forms.FreindMessagesActivity.convertInputStreamToString(FreindMessagesActivity.java:493)
02-22 22:58:11.208: ERROR/AndroidRuntime(498):     at aynoo.forms.FreindMessagesA

Answer 1

Dalvik JVM 不提供该类。以下是 Android SDK 包含的软件包列表：

http://developer.android.com/reference/packages.html