I try to give a path in sqliteopen, but fail with logcat: java.lang.IllegalArgumentException: File //...db contains a path separator

I find the ApplicationContext.makeFilename throw the exception, while change the android framework code, it fail in further JNI code

I'm depressed。

would anyone kindly enough to give me a hand

SQLiteOpenHelper not working

following code OK
SQLiteDatabase db = SQLiteDatabase.openDatabase(DATABASE_SD, null, SQLiteDatabase.OPEN_READWRITE);