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畢業(yè)論文-基于ios的派卡系統(tǒng)設(shè)計(jì)與應(yīng)用-資料下載頁

2025-01-12 12:08本頁面
  

【正文】 件的限制,本應(yīng)用軟件沒有進(jìn)行大規(guī)模的針對網(wǎng)絡(luò)環(huán)境的測試。本應(yīng)用軟件測試其他性能均使用 WiFi 網(wǎng)絡(luò)環(huán)境,使用 iPhone Air 硬件設(shè)備。重點(diǎn)的測試對象是內(nèi)存泄漏測試、與服務(wù)器數(shù)據(jù)匹配測試、用戶體驗(yàn)測試、基本功能測試,內(nèi)存測試使用 Instruments 工具,如圖 所示: 21 圖 Instruments 內(nèi)存檢測圖 測試發(fā)現(xiàn)視頻播放有輕微的內(nèi)存泄漏,查找原因發(fā)現(xiàn)是重復(fù)創(chuàng)建播放對象產(chǎn)生的,將對象做為全局的對象只 alloc 一次解決了問題。 在應(yīng)用軟件重復(fù)測試的時候發(fā)現(xiàn)了閃退的問題,后續(xù)查 詢結(jié)果是因?yàn)榉?wù)器數(shù)據(jù)結(jié)構(gòu)不穩(wěn)定導(dǎo)致,故在數(shù)據(jù)解析時候加了很多關(guān)于數(shù)據(jù)結(jié)構(gòu)的判斷,最終解決了這個問題。 測試是一個應(yīng)用軟件的終身任務(wù),每個程序員都知道沒有一個應(yīng)用軟件是完全沒有漏洞的,只有不斷的測試和用戶反饋才能修復(fù)一個又一個的漏洞,才能保證良好的用戶體驗(yàn)。 項(xiàng)目運(yùn)行情況 經(jīng)過長期的討論開發(fā)測試,最終完成了應(yīng)用軟件的開發(fā)階段,應(yīng)用軟件核心的界面如圖 所示。 22 圖 核心界面圖 應(yīng)用軟件在目前的所有 iPhone( +以上)設(shè)備中都能夠正常運(yùn)行,方便了用戶隨時隨地的辦公,能夠切切實(shí)實(shí)的 幫助到員工。 總結(jié) (1)所有的 UI 操作 ,都要切換到主線程中進(jìn)行 .否則 ,會發(fā)生莫名其妙的錯誤 . (2)在主線程中, runloop 默認(rèn)是開啟狀態(tài)的。非主線程中,如果要用到 runloop,必須手動開啟 runloop。 (4)嚴(yán)格遵守 iphone 內(nèi)存管理手冊 ,對于不是由你創(chuàng)建的對象 ,不要越權(quán) release,否則 ,可能會導(dǎo)致程序 ,一些看起來非常嚴(yán)重的 bug,在經(jīng)過 N 過次努力 ,多種思路嘗試 fix 之后 ,再回頭分析 bug 產(chǎn)生的原因 ,你會發(fā)現(xiàn) ,造成這個嚴(yán)重 bug 的原因 ,很可能是你違反了一個眾所周知的規(guī)則 引起的 .這個規(guī)則你非常清楚 ,熟悉 ,但就是在 coding 的時候 ,稍不留神違反了它 .于是就帶來了災(zāi)難性后果 . (5)除了面向?qū)ο蟮?cocoa 外, iphone 編程不要忘記非面向?qū)ο蟮?Core Foundation。 面向?qū)ο髱炖锖芏鄾]有的功能,可以嘗試在 Core Foundation 里找找。披如: RSA 算法,MD5 算法, SHA1 算法, AES 加密算法等, cocoa 對象庫里并沒有相應(yīng)的實(shí)現(xiàn),但在 core foundation 里,均有相應(yīng)的實(shí)現(xiàn)。 (6)通過設(shè)置 NSZombieEnabled 參數(shù),有非常有效幫助解決內(nèi)存 釋放錯誤。 在消除某個對象時,如果為該對象設(shè)置了 delegate,則需要先將 delegate 設(shè)成 nil,這是一種良好的代碼習(xí)慣。 (7)在 的 Simulator 上使用 Instruments 檢測內(nèi)存泄漏時 ,無法看到函數(shù)名 ,只能看到一些地址指針 .在 , 的 simulator 都正常 ,能夠正常地看到是在哪個函數(shù)中存 23 在的內(nèi)存泄漏。通過 Nib 文件加載 viewcontroller 的各種 UI 控件時時,在 viewDidLoad函數(shù)里, viewController 的控件才能使用。在 viewcontroller 的構(gòu)造函數(shù)里, nib 里的控件都還沒有完成鏈接構(gòu)造呢。 (8)iPhone 程序崩潰不要著急??梢越Y(jié)合使用 Console 和 objc_exception_throw 可以快速定位根源所在。 參考文獻(xiàn) [1] 張亦航, iOS 開發(fā)系列之 C/ObjectiveC 語言基礎(chǔ),北京人民出版社, 2022年, 9499. [2] 劉璇, iOS 開發(fā)系列值 iOS 開發(fā)指南第五版,北京人民出版社, 2022年, 3442. [3] 科施恩, ,機(jī)械工業(yè)出版社, 2022年, 7634. [4] Carlo Chung, ObjectiveC 編程之道 :iOS 設(shè)計(jì)模式解析,人民郵電出版社, 2022年 , 8597. [5] Dave Mark, Jack Nutting, Jeff LaMarche, iPhone4與 iPad 開發(fā)基礎(chǔ)教程,人民郵電出版社, 2022年, 2334. [6] Dave Mark, Jack Nutting,Jeff LaMarche 等, iOS5基礎(chǔ)教程第二版,人民郵電出版 社, 2022年, 5367. [7]嚴(yán)蔚敏,吳偉民,數(shù)據(jù)結(jié)構(gòu)( C 語言版) [M],清華大學(xué)出版社, 1997年 . [8]陳汶濱,朱小梅,任冬梅,軟件測試技術(shù)基礎(chǔ) [M],清華大學(xué)出版社, 2022年 . [9] Gerard the mobile phone,The iPhone and its consumption[M] Routledge 2022. [10] Heron, Command and Contol Security[J].2022,(4):1316. [11] Khattb S,Melhem R,Mosse Backpropagation for Mitigating Spoofing Distributed DenialofService of Parallel and Distributed Computing.[J]2022,11521164. [12](美國 )薩丹 著 (美國)張彩霞 譯 . iPhone 開發(fā)秘籍 [M].第 2版,人民郵電出版社, 2022. 24 致謝 畢業(yè)設(shè)計(jì) 即將結(jié)束,這里首先向我的指導(dǎo)老師向老師表示最誠摯的感謝,同時感謝那些幫助我的同學(xué)們。 在老師的指導(dǎo)和同學(xué)的幫助之下,學(xué)生對于道路設(shè)計(jì)有了更多新的認(rèn)知,對 iOS 開發(fā)設(shè)計(jì)有了更深一步的認(rèn)識,對 iOS 開發(fā)設(shè)計(jì)的整體脈絡(luò)了解得更加的清晰透徹。通過畢業(yè)設(shè)計(jì),學(xué)生對自己大學(xué)四年以來所學(xué)的知識有更多的認(rèn)識。 畢業(yè)設(shè)計(jì),幫助我們總結(jié)大學(xué)四年收獲、認(rèn)清自我。同時,還幫助我們改變一些處理事情時懶散的習(xí)慣。從最開始時的搜集資料,整理資料,到方案比選,確定方案,再到著手開始進(jìn)行 iOS 開發(fā)設(shè)計(jì),每一步都是環(huán)環(huán)相扣,銜接緊密,其中任何 一個步驟產(chǎn)生遺漏或者疏忽,就會對以后的設(shè)計(jì)帶來很多的不便。 畢業(yè)設(shè)計(jì)結(jié)束了,通過設(shè)計(jì),學(xué)生深刻領(lǐng)會到基礎(chǔ)的重要性,畢業(yè)設(shè)計(jì)不僅僅能幫助學(xué)生檢驗(yàn)大學(xué)四年的學(xué)習(xí)成果,更多的是畢業(yè)設(shè)計(jì)可以幫助我們更加清楚的認(rèn)識自我,磨練學(xué)生的意志與耐性,這會為學(xué)生日后的工作和生活帶來很大的幫助。 25 a 您好,為你提供優(yōu)秀的畢業(yè)論文參考資料,請您刪除以下內(nèi)容, O(∩_∩)O 謝謝!??!A national survey was recently launched to evaluate the eye health of Chinese children June 6, China39。s annual National Day for Eye Care, the China Youth Development ServiceCenter and Zhejiang Medicine, a leading listed Chinese pharmaceutical pany, jointlyannounced the kickoff of the surve about one month, a questionnaire piled by top eye care medical experts in China willbe distributed through multiple online partners, including , as well asthrough offline survey events held in universities, middle schools and primary schools acrossthe report will be released based on the survey statistics and analysis, and most importantly,guidelines for parents and youth on how to care for the eyes and prevent myopia — agrowing problem in China39。s digitized society, will also be attached on the report.Myopia is not only a disease that makes people see things blurrily, but also leads to severeplications, such as glaua (increased pressure within the eyeball), and can causeblindness, said Zhou Yuehua, an established eye care specialist with Beijing TongrenHospital.It is very important for parents and children to know about the risk and care for their eyes.There are about 450 million myopia patients in China. Among Chinese myopia patients,30million are severe patients, according to ZhouThe prevalence of myopia among high school and college students is more than 70 percent,and the situation is continuously worsening, he Zhu, director with the China Youth Development Service Center, said long hours ofstudy, lack of exercise, especially outdoor activities, and attachment to electronic screen aresome of the top reasons behind the widespread myopia problems, and the increase ofyounger patients, although China has made great progress in improving the hardwarefacilities and lighting conditions in said he hopes the survey will alert people on the threatening situation, and also helpmedical experts to better guideline parents and children39。s behaviors to care for eyes, basedon the timely and factual statistics the survey series of followup events will also be held in six cities, including Jinan in Shandongprovince, and Changsha in Hunan province, to educate people on how to care for eyes afterthe survey started. More and more Chinese are jogging to get and stay fit. Most joggers will run alone, but some will jog with friends or even coaches. The Beijing Olympic Forest Park is one of the most popular spots. It is packed with runners in the afternoon, usually after work, and at weekends. Jogging after a whole day39。s work can be a way to unwind. It is true for He Wenjun, whose workplace is right near the forest park. She discovered her athletic aptitude at the age of seven, when she began playing tennis. Then she turned to jogging, and she has persevered with it for 10 years. I e to jog almost every day after work, whenever I have time. I think jogging is good for my health. And for me, a girl, it helps me
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