【正文】 duced. The first chapter the introduction, this paper introduces the background of the subject research, mobile GPS navigation development present situation and the main research topic in meaning and significance。 Chapter 3, 4, 5 in the key for this paper, this paper expounds the system demand, and the detailed design and the existing problem and so on。 This paper is the seventh rules summary. 【 Key Words】 J2ME， MIDP， GPS， JSR179， Google Static Map III 目錄 摘要 .............................................................................................................................................. I ABSTRACT...................................................................................................................................... II 目錄 ............................................................................................................................................ III 引言 ............................................................................................................................................. V 第一章 緒論 ................................................................................................................................ 1 課題研究背景 ....................................................................................................................................................1 手機 GPS 導航發(fā)展現(xiàn)狀 ..................................................................................................................................1 課題主要內容和意義 .......................................................................................................................................2 第二章 相關技術概覽 ................................................................................................................... 4 基于位置的服務 ...............................................................................................................................................4 基于位置服務的應用范圍 ......................................................................................................................4 基于位置服務的定位方法 ......................................................................................................................4 移動地理信息系統(tǒng) ...........................................................................................................................................6 J2ME 簡介 ..........................................................................................................................................................7 J2ME 架構 .................................................................................................................................................7 JVM ( 虛擬機 ) ........................................................................................................................................8 MIDP( 移動信息設備簡表 ) ..................................................................................................................8 JSR179 開發(fā)包 ...................................................................................................................................................9 GOOGLE API 簡介 .............................................................................................................................................. 10 路徑規(guī)劃的技術選擇 .................................................................................................................................... 10 A 算法實現(xiàn)最短路徑搜索 ................................................................................................................... 10 Google Directions API 提供服務 .......................................................................................................... 11 路線規(guī)劃最終方法選擇 ....................................................................................................................... 12 第三章 軟件需求分析 ..................................................................................................................13 用戶需求 ......................................................................................................................................................... 13 功能模塊劃分 ................................................................................................................................................. 13 功能模塊圖 ............................................................................................................................................ 14 功能要求 ................................................................................................................................................ 14 第四章 詳細設計與開發(fā) ..............................................................................................................16 MIDLET 開發(fā)流程介紹 .................................................................................................................................... 16 各功能模塊詳細設計 .................................................................................................................................... 17 界面切換類 ............................................................................................................................................ 17 聯(lián)網(wǎng)地圖類 ............................................................................................................................................ 19 離線地圖類 ............................................................................................................................................ 24 各線程類 ................................................................................................................................................ 26 IV 實體類 .................................................................................................................................................... 27 GoogleMaps 類 (引用開源