| dc.description.abstract | With popularity of mobile devices, the tablets are easier for reading and operation than mobile phones and more portable than notebooks. Also with development of Android application development framework, the digital content learning not only escapes from the limitation on time and space but allows researchers to develop related services via more open environment and resources. Besides, taking into consideration that tablets may be situated at a non-network environment, or device power may be depleted rapidly since the continuous connection to wireless internet while doing the process of mobile learning from online digital contents, so the design of the proposed service is making use of local SD Card in tablet and external hard disk as storages for a large amount of rich digital content material resources. Also, the resources of exam materials will be integrated into a SQLite database, which owns the feature of high portability for different platforms (cross-platform). In addition, for preventing from the arbitrary reproduction of digital content materials with copyrights, the material database is encrypted with AES-256 algorithm through making SQL commands on SQLCipher tool. Then, presenting the decrypted data on the appropriate user interface via accessing to the methods provided from “SQLCipher for Android” libraries, which are included in the implementation of the proposed service, furthermore, users can operate all the digital content learning activities with mobility.
To sum up, for achieving the goal of mobile learning, based on the environment of ASUS Eee Pad Transformer Prime TF201 tablet equipped with Android 4.0.3, the implementation of the proposed service builds and manages local digital content material resources, with design and development of an Android system for realization of three m-learning activities: “Multimedia Material Delivery”, “Digital Content Interaction”, and “Learning Record Presentation”.
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