2023年Android实验报告新编.pdf

《2023年Android实验报告新编.pdf》由会员分享，可在线阅读，更多相关《2023年Android实验报告新编.pdf（68页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、Andro i d实验报告专业：计算机科学与技术班级 1 3 4 1 9 01 1学号：姓名：武易0000202 3 年 11 月 2 8日实 验 一Activity生命周期一、实验目的A n d ro id 生命周期是从程序启动到程序终止的过程。通过本次实验进一步理解A ndro i d系统管理生命周期的必要性，并 以 Activity为 例 说 明 A n d ro id 系统是如何管理程序组件的生命周期。二、实验设备1、硬件设备系统类型:W 1 n 7 版 本 32 位,解决器：I n t e 1(R)Core(TM)i 3-2 35 0M CPU 2.30GHz 2.30GHz 安装内

2、存(RAM):8.00GB2、软件设备 Win 7 操作系统、E e l i ps e、JDK、And roid SDK、AD T三、实验内容1、实验规定观 测 Acfi v i ty 的生命周期。2、具体设计pa ckage c om.examp 1 e.a c t ivityl i fecycle；im port a n droid.suppo r t.v7.app.A c t i on B a rActivi t y;impor t andr o id.o s.Bundle;1 mp o r t and r oi d.u til.Lo g;impo rt and r o i d.view

3、.Menu;i m p o r t andr o i d.view.Menu I tem；impor t android.view.Vi e w；import android.widge t.B u t ton；p u blic cla s s Ma 1 nA c ti v i t y extend s A c 11 on Bar A c ti v i t y p r 1 vate sta t i c Stri n g TAG=LIFECYCLE”；O v e rrid e3 p u blic v o l d on C r eate(Bund 1 e savedin s tan c eSt a

4、 t e)。s u per.o nC r e a t e(s a vedln s tance S tate);e setC o ntentView(R.1 ayout.activi t y_ma i n);L o g.i(TAG,onC re a te ()；O 0。But t on button=(Button)findViewBy Id(R.id.b u t t onl);b u tton.setOnClic k Listener(new View.OnClic k L i s tener(X。pu b lie vo id onC 1 i c k(V iew v 1 ew)。fini s

5、h()；76 )；)0 v er r idep ub 1 ic vo i d o n Sta r t()e s up e r.o n Start();。Log.i(TAG,(2)onStar t();Overrid eo p u b li c void o n R e sto r elnsta n ceSt a te (Bundle savedin s t a nc e Stat e)sup e r.o nRes t orel n sta n c e S tat e(save d Inst a nceState);3 Log.i(TAG,(3)o n R e sto rein s ta n c

6、e State();0 Ove r r i dep u bl i c v oid onR e sum e()sup e r.on R esume();3 L og.i(T A G,(4)onR e sume();0)0 Ove r r id e。pub 1 i c void on Save I ns t anceState(B und Ie sa ve d In s t ance S tate)super.onSaveln s t anceS t ate(saved I n s t anceS t a te)；。Log.i(TAG,(5)onSavelnstanceS t a te()；)。O

7、ve r r i de。pub 1 ic vo i d o n R esta r t()。super.onRe s tart();L og.i(TAG,(6)onRe s t a r t();0)o Ov e rri d e。public voi d o n Pau s e()。s u p e r .onPause();。Log.i(TAG,(7)OnPauseQ)0)0v e rridep u blic v oi d onS to p ()s u per.o nStop();L o g.i(TAG,(8)onStop()H);)00 v errid e。pu b lie vo i d onD

8、estroy()super.onDe s t roy();6 Log.i(TAG,(9)onDestroy();0)/*Over r i d eprotect e d void onC r eate(B u n die savedlnstance S tate)s u p e r.onCreate(s av e d in s tan c eSt a t e);set C o n t e n t V i e w(R.1 a y o ut.ac t iv i t y_main);*/Overridepubli c bo o lea n o n C reateO p ti o n sMenu(Me

9、n u me n u)/In f I a te th e menu；th is a d d s it e ms to the a ction b a r if it is pre s ent.ge t M e n uln f 1 ater().in f I a te(R.men u.main,m e nu);r e t u rn t r ue;)0 v erridep ub 1 i c boolean onOpti o nsl t emS e Ie cte d(Menult e m ite m)/Handle action bar item c 1 icks he r e.The actio

10、n bar wil 1/automa t ical 1 y h andle cl i cks o n the H ome/Up b u tton,so I o ng/a s y ou s pecify a pare nt a cti v ity i n AndroidMa n i f e s t.x ml.I n t i d=item.getlt e ml d()；if(id=R .i d.action_s etti n g s)ret u r n true;return s u per.onOptions I t e m S ele c ted(item);)3、结果显示-5554AVD.f

11、or_6alaxy_Nexu X三的 ActivityLifeCyclelello World,ActivityLifeCycleActivity!结束程序337立。*Probls 6 Bteltrttiut 目 Console Liat Itrm npSaved Filters+即AH messages(no filterscom.example.he8oandrUFECYCLEi Search for messages.Accepts Java regexes.Prefix with pid：.app:.tag:or text to limit scope.verbose v H 国 町

12、工1 Time PID TID Application Tag TextI 12-Oi 03:08:26.920 787 787 coc.exanple.bello.LlfECTCLE(loaC nate()I 12-01 03:10:24.9GB 1083 1083 con.exaDple.hello.LIFECYCLE IDoaCreateOI 12-01 03:14:50.848 1122 1122 con.exaaple.heUo.LIFECYCLE(DooCreateOI 12-01 03:15:51.638 1162 1162 con.exacple.h e llo.LIFECYC

13、LE(l)ooCreateO1 12-01 03:37:43.678 1430 1430 edu.hrbeu.Actlvlt.LIFECYCLE(1)onCreate()1 12-01 03:37:43.678 1430 1430 edu.hrbeu.Actlvlt.LIfECYCLE(2)onSuit)I 12-01 03:37:43.67B 1430 1430 edu.hrbeu.Activit.LIFECYCLE(4)oaResune。I 12-01 03:40:30.30 1430 l30 edu.hrbeu.Activit.LIFECYCLE(7)ooPauseOJ 12-01 03

14、:40:33.436 1430 1430 edu.hrbeu.Activit.LIHCYC1E(8)onSccpOJ 12-01 03:40:33.508 1430 1430 edu.hrben.ACTivit.LIFECYCLE(9)onDenroyOI 12-01 03:40:56.158 1430 1430 edu.hrbeu.Activit.LIFECYCLE(1)onCreate)1 12-01 03:40:56.228 1430 1430 edu.hrbeu.Acuvit.LIFECYCLE(2)onSunO1 12-01 03:40:56.228 1430 1430 ed u.h

15、 rizu.A cu vit.LlflCTOE(4)oaResuM。实验二用户界面控件一、实验目的用户界面是应用程序开发的重要组成部分，决定了应用程序是否美观、易用。通过本次实 验 熟 悉A ndroid用户界面的基本开发方法，了解在And r o i d界面开发过程中常见的界面控件的使用方法。二、实验设备1、硬件设备系统类型：W in7版 本3 2位,解 决 器:I n tel(R)Core(TM)i3-2350MCPU 2.30GH z 2.30GH z 安装内存(RAM):8.0 0GB2、软件设备 Win7 操作系统、E clip se、JDK、A ndroid SDK、ADT三、实验

16、内容I s实验规定设计一个自我介绍的界面。2、具体设计p acka g e c om.e xamp 1 e.t e x t 5;import j a va.util.A r r ayLi s t;im p o r t java,u t 1 1 .List;impor t a ndroid.sup po r t.v7.app.Action Ba r Activity；import android.os.B undle;im p o rt a n droi d.view.V 1 ew;i m p ort andro i d.widget.Check B o x；1 mport androi d.w

17、 i d g e t.Edi t Text;imp o rt and r oid.widg e t.A r r a yA d apter;im p o r t andr O ld.widg e t.RadioB u tton;import and r oid.w i d ge t.Sp i nner；i m p ort a ndr o i d.wi d g e t.B u t ton；public c 1 as s Main Activity extend s Action B a r A c tivity String nam e=S tr i ng se x=HString hobby=;

18、String a g e =；Overridep rotec t ed v o id onCr e a t e(B undle save d Ins t a nc e State)su per.onC r ea t e(savedl nstan c e S ta te)；set C ontentView(R.la y out.a ctiv i t y _main);S h ow()；fin a I Che c k B o x che c k B oxi=(C he c k B o x)fi n dV i ew B y I d(R.id.check Bo x 1 )；fi n a I C h e

19、 e kBo x c h e ckBox 2=(Chec k Bo x)fin d V i ewByld(R.id.chec k Bo x 2);f 1 nal Chee k B o x c h e c k B o x 3=(C h e ckB o x)f i ndVie wByld(R.id.checkBo x 3)；final Edi t Te x t e d i tT e xtl=(Edi t Text)find V iew B y I d(R.id.e d 1tTex t 1);final E d it T e x t ed i t Te x t2=(Ed i t T ext)find

20、 V iew B y I d(R.id.editTex t 2);fina 1 R ad ioButto n radi o l=(Rad i o But t on)f indView B y Id(R.n d.r adiol);final Rad 1 oBut t o n ra d io2=(R ad i o Button)fi n dViewBy Id(R.id.rad i o 2);f ina 1 But t o n b u t t o n 二(Butt o n)f i ndViewB y I d(R.id.b u t ton1)；f i na 1 Spin n e r spi n ner

21、=(Sp in n er)findViewB y I d(R.i d.spinnerl)；B ut t on.O n C 1 ic k Li s t e ne r b u t t onLi s te n er=new B utton.O n Cl-i ckLi s tener()。Over r id e。pu b lie v oid onClic k(V i ew v)。/TODO A u t o-g e nera t e d method st u b name=;a ge=；。name=editTe x tl.get T e xt().toStr i n g()；。a g e=s p in

22、ne r,g e t S e Ie c t edit e m().toStr i n g();edi t Te x t2.setText(大家好,我是“+n ame+“，性另ij:“+sex+:爱好:“+hobb 丫+“年级:，9 方。o re t u rn；6)；b utto n.se tOnCIi c k Li s tener(bu t tonLis t e n e r);C h eck Box.OnC 1 ick L ist e n e r che c k b o x L iste n e r=new Che ckBo x.0 n Cli c kListene r()。0 v erri

23、d e。publi c v o id o nClick(V 1 e w v)3/TODO A u to-gen e rated method stu b3 hobby=;。if(checkBo x 1 .is Che c ke d()a Ma i nActivity.thi s.h obby+二”足球,“；。if(c h ec k Bo x 2.isCheck e d()3。o M a i nA c tiv i ty.th i s.h obby+=篮球 J;6 b。o 。i f(c hec k B o x 3.isChe c ked()M ai n Act i v i t y.this.ho

24、b b y+=”乒乓球，”；ret u rn;6);c hec k B o xl.setOnC 1 ickListener(c heckb oxListener);c heckBox2.s e tOnC 1 ic k Listen e r(c h e ckboxL i ste n er);c h e ck B ox3.s e tOnClic k Listene r(checkboxL i sten e r);RadioBut t o n.O n Clic k L 1 st e ner ra i doBu t t o nLis t ener=newR adio B ut t o n.OnClic

25、kListener()。Ov e r ridep u b lic voi d on Click(V i ew v)。/TODO Auto-ge n era t e d method s t u b3。swit c h(v.g e t I d()c a s e R.I d.radiol:。o if(r adiol.isC h eck e d()。Ma i nActivity.thi s.se x 二 男；。retu r n;。case R.i d.radio2:。i f(radio2.i s Che eke d()。MainA c tivity.this.sex=“女；6。return;6)）：

26、radiol.s e t OnC 1 i ckListener(raidoButto nListene r);ra d io2.se t O n ClickL i stener(raidoButt o nList e ner);publ 1 c v oi d Show()Spin ne r s p in ner=(Spinn e r)f indView Byld(R.i d.spinne r 1);Lis t list=new Arr a yList();list.a dd(大一年级);list,a dd(大二年级”)；1 i s t.ad d(“大三年级”)；lis a d d(大 四年级)

27、;Ar r a yAda p t e r ad a pt e r=n ew Arr a y A d a p t e r (this,a n d ro id.R.layout.simpl e_spinner_i tem,li s t)；a dapter.se t Drop D own Vi ewR e source(a n droid.R.1 ayout.s 1 mp Ie_ spinne r _ d ro p d ow n _ i tem);spin n e r.s e tAdapter(adapter);)3、结果显示 B I，K W|，信Wrm Are.我鼻燮.性的 ,e R 修，*大三斗

28、缗ftx e.a i*嘲IA的 r.e 。);Do.se t OnClickListene r(new V i e w.OnClickListener()e。Ove r ridepubl i c void on C lick(View a r gO)。/TODO A uto-g enerated met h od s t ub。s i f(mathService=null)t e xtV i ew.s e tTex t(未绑定服务)。retu r n;b 0 i nt a=I n t e g e r.parselnt(One.g e t T e xt().t o S t r in g()；。i

29、nt b=I nteg e r.par s e I nt(Two.getT e xt().t oSt r ing()；e int s=m a thSer v ice.Com pare(a,b)；e o tex t View.setTex t(较大的数为：+s););Stop.setOnCl 1 c kListe ner(new View.OnCli c kListene r()。Ov e rr i d e p u b I i c v oid onClick(View argO)s if(isBound)isBo u n d=fal s e;o unbindService(mConne c 11

30、 on)；0。mathS e rvi ce=nu 1 I;0 0 1);Quit.s etO nC h c k L i s te n e r(new View.OnClickL n s tener()0。Overrideo pu b lie void o n Cl i ck(View arg 0)finish();0)；p ri v a te Serv 1 ceCo n ne c ti o n mConn e cti o n=new Serv 1 c eCon n ecti o n()。0 v e r r 1 de3 public v o id o n S e rv ic e Con n e

31、c t e d(Compone n tName nameJBinders e r vi c e)。mat h Se r vice二(Ma t hServ i ce.Loc a IBinder)s e r v i ce).getService()；0)Overr 1 de。p u b lie vo i d onSer v iceD i sconnected(Com p onentName name)ma t hService=n u II;)；)M a thSer v ice 代 码:pac k age com.ex a mple.t e x t 7;impo rt a ndroid.app.S

32、ervi c e;i mport android.co n tent.l n tent;import a n d ro i d.os.B in d e r;imp o rt a n d r oid.os.I Binder;impor t android.widget.Toast;public class M a t h S e r vice extends S e r v ice 3 priva t e fina 1 IB i n d er mBinder=new LocalBi n d er();publi c c 1 a s s LocalBind e r e x tends Binder

33、。e M at h S e r v ice g et S ervice()。r e t urn MathS e r v ice.this;)0 0 v e r ride。pu b 11 c IBi n der o n Bind(I n ten t a r gO)/TO D O A uto-gen e ra t ed m ethod stu b3 o Toast.makeT ex t(th is,已启动服务，Toa s t.LENG T H_S HO RT).show。;retu r n mBi n d e r;0 v e r r idep u blic bo o lea n o n U n b

34、 i nd(lnte n t in t ent)。Toast.makeTe x t(t h i s,“已取消服务”，Toast.L E N GTH_SHORT).s how();。r etur n f a Ise；)s publ i c in t Compare(i n t ajnt b)。if(a b)return a;e o el s e if(ba)return b;e Ise)r et u rn 0；3、结果显不Q B -l(Sd l BindScrvioeIQ 1fxs8nHe8 D d OB MiWt MathSsrvkvBtndService I&ndService实验六数据库存

35、储一、实验目的数据库存储是A n d ro id 数据存储中非常重要的内容，And r o 1 d 提供一个轻量级的嵌入式数据库S Q L it e,本次实验将学习如何通过代码建立数据库，并实现添加、删除、查找和更新等基本操作。二、实验设备1、硬件设备 系统类型：W in7版 本 3 2 位，解决器：In te l(R)COre(TM)i 3-2 3 50M CPU 2.30GHz 2.30GHz 安装 内 存(RAM):8.0 0GB2、软件设备 Win7 操作系统、Eel 1 pse、JD K、Andro i d SD K、ADT三、实验内容1、实验规定建立一个数据库并完毕增删查改操作。2

36、、具体设计M a in Activity 代 码：p ackage c om.e xample.tex t 8;1 mpo r t an d roid.su p por t.v7.app.A c t i o n B a rAc t ivity;i mport a n d r o i d.con t ent.C ontext;im p o r t android.os.B u n d I e;import andr o id.view.V iew；im p o rt a n droid.w 1 d g e t.Button;i mpo r t a n dr o i d.w i dg e t.Ed

37、 i t Text;i mpo r t a n droid.widge t.Tex t View;imp o rt a nd r oid.wid g e t.T o as t;public c 1 ass M a i nA c tivit y ex t e nds Action B a r A c t iv it y(e p r i vat e D BAda p ter d ba d apter;priv a t e C o n t ext mCon te x t;public DBAdapte r getD badapter()e。ret u rn d b a d a p t e r；)pu

38、 b lie vo i d set D b a dapter(D B A d a p t er d b a da pte r)e o this.d b adapt e r=d bad a p ter;6 000 v e r r idep r o t e cted v oid o nCre a t e(B u n d Ie s a v edln s tance S tate)sup e r.on C re a t e(s a v edlnst a nc e St a t e);setC o nt e ntVi e w(R.1 ayout.activ i ty_main)；f i nal Edit

39、Text n ame=(EditText)f l ndView Byld(R.id.ed itTextl);fin a 1 Ed itTex t sex=(Ed n tTe x t)findView B y I d(R.id.ed itTex t 2);final E d it Text pla c e=(E ditText)find ViewByld(R.id.editT e x t 3);fi n al EditTex t pay=(EditText)f i nd V 1 e w B y I d(R.i d.ed i tText4)；f i n a l E d i t Te x 11D=(

40、Edi t T ext)findVi e w Byld(R.i d.ed itTe xfin a I B u tto n add=(Button)findView Byld(R.id.button 1);final Bu t to n show=(B utto n)f l ndV i ewBy I d(R.id.button 2);Button c I e an=(Button)findV i ewByld(R.1 d.butt o n3)；B u tton d ele t e=(B u t ton)fi n d V i e wByld(R.i d.b ut t o n 4);Bu tto n

41、 ID_d e I e t e=(But t on)f ind ViewByld(R.id.b u tto n 5)；B u tt o n ID_check=(Butto n)f 1 ndViewB y I d(R.id.button6)；Butto n ID_update=(Butto n)findViewByld(R.id.bu t ton7);B utton Q u it=(Butto n)f i ndViewB y I d(R.id.button 8);f inal T extView s howdata=(T ex tView)f 1 ndVi e wByld(R.id.textVi

42、 ew6);mCo n t e x t=this;Button.OnClickLi s t e ner QuitLi s tener=new Butto n.On C 1 ic k L istener()。o 0 v erride。public void onCIi c k(View argO)e /T ODO Au t o-generat e d met h o d stu b。fi n is h()；6)；Bu t t on.O n Click L iste n e r addL is t e n e r =new But t on.OnCIi ck Lis t e ner()。0 v e

43、rrides s s public vo i d onC lie k(V i ew a r g 0)/TO DO Au t o-genera t ed me t hod stu b3。dbadapte r=new DB A d apter(mCo n te x t);d b a da p ter.o pen();。P e o p le ad d=n e w People();。a d d.N a m e =n ame.getTex t(),toString();。a dd.Sex=s ex.get T ex t().toSt r ing();3 。a dd.PI a ce=place.getT

44、ex t().t oStri n g()；。a d d.P a y=I ntege r.parselnt(pay.ge t T e xt().to S tr i ng();s。d badapter.i n s e r t(add);Q d ba d a pt e r.c 1 os e()；)）；B utt o n.On C lie k L isten e r cleanL i s te n e r=n ew But t on.O nClickLis t en e r()。Ov e rri d e。publ i c vo i d onCIi c k(Vi e w argO)/TODO Aut o

45、-g e nerate d met h o d s t u bs how data.s etText)；B utton.OnClickL i ste n er d e I e teListene r=n e w Button.O n C 1ickListener()。Overri d e3 publ i c v oid onC li c k (V i ew argO)/TODO A uto-generated me t h o d st u bo 。dbadapter=new DB A dapte r(m C ont e x t);。d ba d apter.openQ;dbadapter.d

46、eleteA 1 1 Data();。d b a dapter.c 1 ose();。)；B u tton.O n C lickL 1 s t e n e r Show L n s t e ne r=new Butt o n.O nClickListener()。0v e r r 1 d e。public v o id onCI i c k(View a r g 0)3。/TODO Au t o-g e n e ra t ed method stub。d bada p t er=new DBA d ap t e r(m Context);。d b adapter.ope n();。Peopl

47、e Q shows=n ew P eople56;o S t r in g re s u 1 ts=oi f(I D.getT e xt().to S tr 1 n g()=null)。0 T o a s t.ma k eText(Mai n Activ i ty.t h i s,”请输入 ID,T oa st.LENGTH_SHORT),s how();。else if(db a d apter.getAIID a ta()!=n u 1 1 )。s h ows=d b a d a pter.getA 1 ID a ta();。d bada p ter.c 1 ose();o。f or(in

48、t i=0;i s hows.1 ength;i+)一。0 re s ults+二 s h ow s i;3。res u Its 十 =n ;6 0 else。o Toa s t.m a k eTex t(MainAct i vi t y.th i s,未找到相关记录,T oast.L ENGTH_S HORT).show();。s howd a ta ,setText(r e su 1 t s.toSt r i n g()；)B utton.O n C 1 ickLi s tener I D_ deleteLis t en e r=n e w B utton.O nC 1 ic k List

49、ene r()。Ove r r i de。p ublic vo id onC】ick(V i ew a r g 0)。/TODO Au t o-genera t ed method s tub。if(l D.g e tTex t().toStri n g().eq ua 1 s()。T oast.makeText(Main Ac t i v i ty .th i s,请输入 ID”，Toast.LENGTH_SHORT),show();s else。dbad a pter=n ew DBAdap t e r (mCo n text);o 。d b adapter.op e n();。i n t

50、 id=lnteg er.parsel n t(ID.getText().t oString();。dbadapt e r.delet e OneData(id);。db a dapter.c 1 o se();o O 0 0 j6);B utton.OnClick L i stener ID_ che c k L i s ten e r=new B utton.OnCI1 c k Li s te n er()0 v erri d e。pu b 1 ic voi d onCIi c k(View a r gO)。/TODO Auto-g enerated method stub。i f(ID.