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                          • 当前位置 : IT培训网 > 移动开发 > android > Android培训学校放招 如何使Android代码变得简单易行

                            Android培训学校放招 如何使Android代码变得简单易行

                            时间:2015-08-17 16:34:37  来源:Android培训网  作者:IT培训网  已有:名学员访问该课程
                            标签(Tag):   Android培训学校(3)
                            认识到android软件开发是在各种各样的回调上搭建一切功能,是编写代码的第一步,是未来学习设计模式的基础。

                            ZHIQIANZAICANJIAAndroidPEIXUNDESHIHOULAOSHISHUOGUOYAOHELILIYONGAndroidZHONGDEHUIDIAOHANSHU,RANGDAIMABIANDEJIANJIE。JINTIANJIUHEDAJIATANTANRANGDAIMAJIANDANYIXINGDEFANGFA。

                            什么样的代码简洁清晰

                            WOMENZHISUOYIDAIMAXIEDENEIMENANSHOU,HENDUOSHIHOUSHIYINWEIJIDEJIEKOUBUGOU“DUO”,SHIXIANGYIXIA,RUGUOSDKADEWENJIANBEIGAIDONGYOUHUIDIAO,SHOUJIWEIZHIFASHENGBIANHUAYOUHUIDIAO,WANGLUOZHUANGTAIYIBIANHUAJIUYOUHUIDIAO,ZHEIHUIRANGHENDUOGONGNENGSHIXIANQILAIBIANDEFEICHANGJIANDAN。

                            封装必要的回调函数

                            天下棋牌下载 SHENMESHIJIANXUYAOXIEHUIDIAO?TONGCHANGSHINEIXIEPOHUAIDAIMAJIANJIEDELUOJI,BIRUHAOSHIDECAOZUO,XIANGWANGLUOQINGQIU,DALIANGJISUAN,HUOQUDILIWEIZHIDENG,HUOZHEYIZHIZAIBEIJIANTINGDESHIJIAN,BIRUTUISONGDAOBENDIDEXIAOXI,WENJIANBEICUANGAI、WANGLUOZHUANGTAIDENG。RANGNEIXIEJIANDANBUHAOSHIDECAOZUO,BIRUDUQUWENJIAN,DANCHUToastHUOZHESHEZHITextViewFENMENBIELEIDEFANGZAIZHEIXIEHUIDIAOLIMIAN,RANGRENYIMULERAN。

                            天下棋牌下载 ZHEIXIESHIWUFAYONGMVP,MVVMDENGJIAGOUJIEJUEDE,YUANYINHENJIANDAN,YINWEIWULUNZENMEFENCENG,ZHEIXIEHUIDIAODOUSHIXUYAODE,FENCENGZHISHIBAZHEIXIEHUIDIAOFANGZAIBUTONGDEWENJIANLIMIANERYI。RUANJIANFENCENGYIFANGMIANSHIWEILERONGYIYIZHI,LINGYIFANGMIANSHIWEILEFENLICHUNJavaDEDAIMA,FANGBIANZUODANYUANCESHI。

                            天下棋牌下载 HUIDIAOSHIRANGDAIMAJIANJIEDEFANGSHIZHIYI,ZAIWOMENSHIJIBIANMADEGUOCHENGDANGZHONG,ZAICIQIANDEJICHUSHANG,HAIKENENGHUIYUDAOXIAMIANZHEIGEFEICHANGCHANGJIANDEWENTI。

                            臃肿的回调

                            WULUNWOMENYUANBUYUANYI,WOMENDOUSHIZAIYITIANCHONGGEZHONGSHIJIANDEHUIDIAOLAIBIANXIEandroidDAIMADE,ZHEIJIUDAOZHIYIGEWENTI,DANGYEWULUOJIYUELAIYUEFUZADESHIHOU,WOMENJIUHENYOUKENENGHUIZAITONGYIGEHUIDIAOZHONG,BIANXIEDUOGEHAOBUXIANGGUANDERENWUDEYEWULUOJI。

                            DANGYIGESHIJIANDEHUIDIAOZHONGCHENGZAIDESHIQINGYUELAIYUEDUO,MIANXIANGGUOCHENGDESIXIANGJIUTIXIANDEYUELAIYUEMINGXIAN。ZAISHIJIBIANCHENGDEGUOCHENGDANGZHONG,WOPIANXIANGYUTONGSHIJUBEIMIANXIANGDUIXIANGHEMIANXIANGGUOCHENGLIANGZHONGSIWEIFANGSHI,ERBUSHIJIANDANCUBAODERENWEI:MIANXIANGDUIXIANGGAOYA,MIANXIANGGUOCHENGDISU。TAMENDEBENZHISHIXIANGTONGDE,TUNQUDUOTAIDEGUANGHUAN,MIANXIANGDUIXIANGZHISHIYIZHONGJIANGHANSHUFENMENBIELEICUNFANGDEYIZHONGJIANYI。

                            RUHEJIEJUEHUIDIAOGUOYUYONGZHONGDEWENTI?

                            YOUXIANKAOLVJIANGZHEIGEHUIDIAODESHIJIANXIFEN。DIANXINGDEJIUSHIAbsListViewLEIDEonTouchEvent,onTouchEventLIMIANDELUOJIFEICHANGFUZA,WEILEBIMIANDUIJIZAIYIQIGUOYULINGLUAN,onTouchEventBEIFENJIECHENGLEonTouchDown,onTouchMove,onTouchUpYIJIonTouchCancel。ZHEIYANGYIDAKUAIDAIMAJIUHUIBEIDASAN,JIAOJIGENGXIZHIDEHUIDIAOLAIFENDAN。

                            将onTouchEvent细分

                            天下棋牌下载 RUGUOMOUGESHIJIANDEHUIDIAOZHONGZHIXINGDEYEWULUOJI,BINGBUSHIYILEI(BIRUFASONGWANGLUOQINGQIUSHUAXINLEYIXIAListViewHEDUQULEYIXIAPEIZHIWENJIAN),BUXIANGonTouchEventZHEIYANGKEYIXIFEN,NEIMEWENTIJIUHUIBIANDEBIJIAOMAFAN,YINWEIWOMENYONGSHIJIANDEHUIDIAOLAIJIEJUEWENTIDESHIHOU,WOMENZHENZHENGXIANGYAODESHIHUIDIAOHANSHUZHIXINGDESHIJI,BIRUonResumeJIUZAINEIGETEDINGDESHIJIHUIBEIDIAOYONG,RUGUONIXUYAODEJIUSHIZHEIGESHIJI,NIJIUZHINENGLAOLAOSHISHIDEZAIZHEILIXIEDAIMA,BIEWUTAFA。WEILEDAIMAJIANJIE,WOMENNENGZUODEJIUSHIJINKENENGDEJIANGZHEIGECHENGDANLEDUOGEZHIZEDEHUIDIAOXIEDEZUGOUJIANDAN,ZUIHAOSHIMEIYOUXUNHUAN,MEIYOUFENZHI,JIUSHIJIGECHILUOLUODEHANSHUFANGZAINALI,RANGRENYIMULERAN。

                            天下棋牌下载 HUIDIAOZHITIGONGLEYIGECHULIWENTIDESHIJI,HENNANBAOZHENGDANYIZHIZE

                            DANGESHIJIANNEIWANCHENGDEGONGNENG

                            天下棋牌下载 DUIYUYIXIEJIANDANDEQINGKUANG,ZAIMOUYIGEHUIDIAONEIBUJIUNENGWANCHENGDESHIJIAN,DAZHISHANGDOUSHIZAIHUIDIAOZHONGCHUANGJIANYIGEALEIDEDUIXIANG,RANHOUDIAOYONGALEIDEMOUGEFANGFA,ZHEIGEFANGFALIMIANYOUYONGDAOLEBLEIHECLEIDEDUIXIANG,JINGGUOLEYIXILIEFANYUNFUYUDEJISUAN,WOMENZUIZHONGDEDAOLEYIXIESHUJU,YONGTextViewXIANSHILECHULAI,BIRUDIANJIYIGEANNIUDANCHUYIGEToastXIANSHIDANGQIANRUANJIANDEBANBENHAOZHEIYANGDEGONGNENG,ZHIXUYAOYIGEonClickJIUKEYIWANCHENG。SUOYIWOMENKEYICUBAODELIJIEWEI,SUOYOUMIANXIANGDUIXIANG,DOUSHIJIYUGUOCHENGDE。YINWEIZHIYOUYIXILIEDUIXIANG,ANZHAOMOUZHONGTEDINGDESHUNXUZUZHIQILAI,DIAOYONGLIMIANTEDINGDEFANGFA,CAINENGDECHUYIGEYOUYIYIDEGONGNENG。ZHEIYEJIESHILEWEISHENMEHENDUOSDK,JIUJINIGEFANGFA,GAOSUNI,NISHENMEDOUBUYONGGUAN,ZAIApplicationDEonCreateLIMIANDIAOYIXIAZHEIGEFANGFAJIUHAOLE。

                            LILUNSHANGRENHEYIGEGONGNENGDOUKEYIYONGYIGEFANGFALAIWANCHENG

                            多个事件配合完成的功能

                            ZAIBIRUYIXIESHAOWEIFUZAYIDIANDEGONGNENG,XUYAODUOGESHIJIANPEIHE,BIRUJISUANQI,DANGYONGHUANXIADIYIGESHUZIDESHIHOU,CHUFALEonClickSHIJIAN,NIYAOBAZHEIGESHUZIBAOCUNWEIactivityDEMOUGEZIDUAN,JIEZHE,YONGHUANXIALEJIAHAOHEDIERGESHUZI,NIDOUYAOZHEIYANGBAOCUNQILAI,YIBIANYUZAIZUIZHONGYONGHUANXIADENGHAODESHIHOU,NINENGBAYIQIANDEYIXILIESHURUHUOQUDAO,YIJISUANCHUYIGEJIEGUO。YEJIUSHISHUO,DANGYIGEGONGNENGXUYAODUOGESHIJIANPEIHEWANCHENGDESHIHOU,WOMENZUODESHIQINGJIUSHIBAGEGESHIJIANDEZUIZHONGJIEGUOCONGJUBUZUOYONGYUTISHENGWEILEIDEZIDUAN,JITISHENGKEJIANXING。DANGKEJIANXINGBUNEIMEHAOTISHENGDESHIHOU,LAJIDAIMAJIUCHUXIANLE。BIRUZHEIYANGDEDAIMA:

                            五行缺Context

                            ContextSHIFEICHANGCHANGYONGDEYIGEDUIXIANG,WULUNSHIFAGUANGBO,HAISHIQIDONGactivity,QIDONGService,HUOQUSharedPreferences,HUOQUZIYUANDENGDENG,XUDUODIFANGDOUXUYAOYONGDAOcontext,JIASHANGApplicationDUIXIANGYIZHICUNZAI,YUSHIJIUXIANGCHULEZHEIMEGEBANFA。

                            天下棋牌下载 WOBINGBUFANDUITONGGUOTISHENGKEJIANXINGLAISHIXIANDUOGESHIJIANZHIJIANDEPEIHE,BIRUJISUANQIDELIZI,TISHENGKEJIANXINGJIUSHIYIGEJIANJIEYOUYADEJIEJUEFANGAN。DANSHIHENDUOSHIHOUWEILETISHENGMOUXIEZIDUANDEKEJIANXING,JIANGZIDUANSHEZHIWEIJINGTAIZIDUANSHIMEIYOUBIYAODE,ERQIEYOUKENENGZAOCHENGNEICUNXIELOU。

                            天下棋牌下载 AndroidSHANGJUEDADUOSHUDEDAIMA,DOUSHIYOUSHIJIANCHUFADE,HUOZHESHUO,JIHUSUOYOUDAIMADOUSHIXIEZAIMOUGEHUIDIAOSHANGDE,BIRUonCreate, onPause, onClick,onBindDENGDENG,ERZHEIXIEHUIDIAOHANSHU,QUANDOUSHIYIGEGEDEHANSHU,YEJIUSHISHUO,SHIYIGEYIGEXIAODEGUOCHENG。RENSHIDAOandroidRUANJIANKAIFASHIZAIGEZHONGGEYANGDEHUIDIAOSHANGDAJIANYIQIEGONGNENG,SHIBIANXIEDAIMADEDIYIBU,SHIWEILAIXUEXISHEJIMOSHIDEJICHU。

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