2-1-HelloPurrPPT優(yōu)秀課件

1、College of Mathematics and Computer Science, Hunan Normal University瞿紹軍湖南師范大學數(shù)學與計算機科學學院College of Mathematics and Computer Science, Hunan Normal Universityn/n/n/http:/http:/ College of Mathematics and Computer Sci

2、ence, Hunan Normal Universityn當你觸摸這只貓時，它會發(fā)出“喵嗚”聲和手機震動；當你搖晃它時，也將發(fā)出聲音。College of Mathematics and Computer Science, Hunan Normal University用Chrome (谷歌瀏覽器) 打開了App Inventor 主頁或http:/用你的電子郵件地址賬號注冊和登錄College of Mathematics and Computer Science, Hunan Normal UniversityColleg

3、e of Mathematics and Computer Science, Hunan Normal University項目名稱只能由字母、數(shù)字或下劃線組成，且大小寫敏感，名稱中間不能包含空格，如“Hello”和“hello”是兩個不同的項目名College of Mathematics and Computer Science, Hunan Normal University增加按鈕。在“組件面板”的“用戶界面”中拖動“按鈕”到“工作面板”下的“Screen1”。College of Mathematics and Computer Science, Hunan Normal Unive

4、rsity上傳貓的圖片和聲音College of Mathematics and Computer Science, Hunan Normal University修改按鈕的屬性l在“組件屬性”窗口中修改“圖像”和“文本”兩個屬性。l“圖像”屬性下面的“kitty.png” 。l“文本”屬性里面原有的內(nèi)容“按鈕1文本”刪除掉。College of Mathematics and Computer Science, Hunan Normal UniversityCollege of Mathematics and Computer Science, Hunan Normal University

5、增加標簽l在“組件面板”的“用戶界面”中拖動“標簽”到“工作面板”下的“Screen1”，用鼠標選定添加的“標簽1”，在“組件屬性”窗口中修改“背景顏色”為品紅，“字號”大小為32，“文本”中輸入“Pet the kitty!”。College of Mathematics and Computer Science, Hunan Normal UniversityCollege of Mathematics and Computer Science, Hunan Normal University增加音效l在“組件面板”的“多媒體”中拖動“音效”到“工作面板”下的“Screen1”，無論把它放

6、在哪里，它都會出現(xiàn)在預覽窗口的底部，并被標記為“非可視組件【Non-visible components】”。l非可視組件在應用中發(fā)揮特定作用，但不會顯示在用戶界面中。l然后用鼠標選定添加的“音效1”，在“組件屬性”窗口中為屬性“源文件”選擇聲音文件“meow.mp3”。College of Mathematics and Computer Science, Hunan Normal UniversityCollege of Mathematics and Computer Science, Hunan Normal University打開塊編輯器，即邏輯設計College of Mathe

7、matics and Computer Science, Hunan Normal University添加按鍵來播放剛添加聲音College of Mathematics and Computer Science, Hunan Normal University可以參考上節(jié)內(nèi)容連接你的測試設備。這里用模擬器測試結果。College of Mathematics and Computer Science, Hunan Normal University當點擊按鈕時，讓貓咪發(fā)出叫聲和讓手機震動。College of Mathematics and Computer Science, Hunan

8、Normal University在“調(diào)用 音效1.震動”塊的右下角寫著“毫秒數(shù)【millisecs】”。塊上的開放插槽表示需要插入其他塊，來設定行為的具體方式。College of Mathematics and Computer Science, Hunan Normal University最后單擊數(shù)字“0”，輸入新值“500”College of Mathematics and Computer Science, Hunan Normal University測試：試試吧！點擊設備上的按鈕，你不僅會聽到貓叫聲，還會感覺到半秒的設備震動。注意：測試震動效果只能在安卓設備上進行，模擬器上無

9、法測試。College of Mathematics and Computer Science, Hunan Normal University添加加速度傳感器College of Mathematics and Computer Science, Hunan Normal University添加事件處理程序College of Mathematics and Computer Science, Hunan Normal UniversityCollege of Mathematics and Computer Science, Hunan Normal University如果你想把應用分

10、享給朋友或發(fā)布到應用市場，就需要把應用打包成apk文件。AI2提供了二種打包方式。l打包apk并顯示二維碼l打包apk并下載到電腦College of Mathematics and Computer Science, Hunan Normal UniversityCollege of Mathematics and Computer Science, Hunan Normal UniversityCollege of Mathematics and Computer Science, Hunan Normal Universityapk文件下載下來后，默認保存在當前操作系統(tǒng)的用戶文檔中的“Downloads【下載】”目錄下面。然后可以