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With the constant introduction of Telecom CDMA mobile phone , the original application engine is no longer suitable for most cell phones , an increasing number of defects and problems exposed during the test , the new application engine imminent . In addition , Qualcomm BREW MP operating system 's launch and the first use of the system 's smart phone Dopod F3188 listed fired the first shot of the high pass into the smartphone market , it appears the BREW platform has been a new development direction , but also for many BREW application porting requirements of higher ground . Existing application engine optimization, to make up for the deficiencies in the existing Application Engine to resolve the thorny issue of which exist , so that it can be applied to most cell phones , and normal operation on Dopod F3188 . Application Engine : graphic display , resource management , menu and wizard functions , save the data , call interrupt news event processing and sound technology to do a detailed analysis and design , and correction of deficiencies in the original application engine removing the interface and technologies which are no longer applicable , and gives specific method of each functional module . Menu focuses on a part of the realization of the principle , given its design diagram , with detailed descriptions of the functions used , the addition of the wizard sport right away , for example , the protagonist , the protagonist right away to achieve process , and involves scrolling technology to do a simple introduction . In addition to the compression and decompression technology analysis , detailing the LZ77 compression algorithm and Huffman coding compression principle GZIP decompression implement functions , to solve the problem of the application package is too large . After this , the introduction of the typical problems encountered in the real machine testing process , such as call interruption and recovery issues , font color , text garbage problem , the image is loaded and rotation problems , and gives the corresponding solution . These methods are usually a lot of testing our experience and crystallization , and through proven and effective method .
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