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content provider nullpoint

吐血,在酷派的机器上,调用一个contentProvider,出现Null point  

08-20 15:56:57.274: I/ACRA(12131): Caused by: java.lang.NullPointerException

08-20 15:56:57.274: I/ACRA(12131): at android.os.Parcel.readException(Parcel.java:1471)

08-20 15:56:57.274: I/ACRA(12131): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:185) ..后面发现原来是,privider实现哪里出现的