安卓实验报告

1、如果您需要使用本文档，请点击下载按钮下载! 安卓实验报告班级：xxxxx学号：11111111姓名：xxxx1 / 25如果您需要使用本文档，请点击下载按钮下载!实验一：activity生命周期的测试一：实验目的掌握使用eclipse开发android应用开发程序的方法；掌握android虚拟设备的创建方法；了解android的程序结构；了解使用命令行创建android程序方法；了解activity生命周期，理解activity事件回调，onrestoreinstancestate()和 onsaveinstancestate两个函数的使用。二：实验设备 eclipse 开发android 应

2、用 android虚拟设备（ avd）三：实验内容 （1）正常启动activitylife，然后单击用户界面的“结束程序”按钮关闭程序。（2）正常启动activitylife，然后通过“拨号键”启动内置的拨号程序，再通过“回 退建” 退出拨号程序，使activitylife重新显示在屏幕中。四：实验核心代码package com.example.activitylife;import android.app.activity;import android.app.actionbar;import android.app.fragment;import android.os.bundle;imp

3、ort android.util.log;import android.view.layoutinflater;import android.view.menu;import android.view.menuitem;import android.view.view;import android.view.view.onclicklistener;import android.view.viewgroup;import android.widget.button;import android.os.build;public class mainactivity extends activit

4、y private static string tag="lifecycle" override protected void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate); setcontentview(r.layout.fragment_main); log.i(tag,"(1) oncreate()"); 2 / 25如果您需要使用本文档，请点击下载按钮下载! button button =(button) findviewbyid(r.id.btn_f

5、inish); button.setonclicklistener(new onclicklistener() public void onclick(view view) / todo auto-generated method stubfinish();); overrideprotected void onstart() / todo auto-generated method stubsuper.onstart(); log.i(tag,"(2) onstart()"); overrideprotected void onrestoreinstancestate(b

6、undle savedinstancestate) / todo auto-generated method stubsuper.onrestoreinstancestate(savedinstancestate); log.i(tag,"(3) onrestoreinstancestate()"); overrideprotected void onresume() / todo auto-generated method stubsuper.onresume(); log.i(tag,"(4) onresume()"); overrideprotec

7、ted void onsaveinstancestate(bundle outstate) / todo auto-generated method stubsuper.onsaveinstancestate(outstate); log.i(tag,"(5) onsaveinstancestate()"); overrideprotected void onrestart() / todo auto-generated method stubsuper.onrestart(); log.i(tag,"(6) onrestart()"); overrid

8、eprotected void onpause() / todo auto-generated method stubsuper.onpause();3 / 25如果您需要使用本文档，请点击下载按钮下载! log.i(tag,"(7) onpause()"); overrideprotected void onstop() / todo auto-generated method stubsuper.onstop(); log.i(tag,"(8) onstop()"); overrideprotected void ondestroy() / todo

9、 auto-generated method stubsuper.ondestroy(); log.i(tag,"(9) ondestroy()"); 五：运行结果截图：实验二：用户界面自我介绍一：实验目的：了解各种界面控件的使用方法；掌握按键事件和触摸事件的处理方法；掌握radiobutton和radiogroup的使用方法。二：实验设备 eclipse 开发android 应用 android虚拟设备（ avd）三：实验内容要求写一个自我介绍的安卓应用，包括姓名，性别，爱好，其中性别用radiobutton选项编写，点击提交时，姓名，性别，爱好会在下面显示出来。5 /

10、25如果您需要使用本文档，请点击下载按钮下载!四：实验核心代码：public class mainactivity extends activity private edittext edittext1;private edittext edittext2;private edittext edittext3;private textview textview1;private textview textview2;private textview textview3;private radiogroup radiogroup;private radiobutton radiobutton1;

11、private radiobutton radiobutton2;private button button;protected void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate);setcontentview(r.layout.activity_main);edittext1 = (edittext) findviewbyid(r.id.e1);edittext2 = (edittext) findviewbyid(r.id.e2);textview1 = (textview) findvie

12、wbyid(r.id.t1);textview2 = (textview) findviewbyid(r.id.t2);textview3 = (textview) findviewbyid(r.id.t3);radiogroup = (radiogroup) findviewbyid(r.id.radiogroup1);radiobutton1 = (radiobutton) findviewbyid(r.id.radiobutton1);radiobutton2 = (radiobutton) findviewbyid(r.id.radiobutton2);button = (button

13、) findviewbyid(r.id.button1);radiogroup.setoncheckedchangelistener(new oncheckedchangelistener() public void oncheckedchanged(radiogroup arg0, final int arg1) button.setonclicklistener(new view.onclicklistener() public void onclick(view arg0) string str = edittext1.gettext().tostring().trim();string

14、 str1 = edittext2.gettext().tostring().trim();textview1.settext("姓名："+str);textview3.settext("爱好："+str1);if (arg1 = r.id.radiobutton1)textview2.settext("性别："+"男");else if (arg1 = r.id.radiobutton2)textview2.settext("性别："+"女");););5 / 25如果您需

15、要使用本文档，请点击下载按钮下载!五：运行结果截图：实验三：不同界面的切换一：实验目的掌握各种界面布局的特点和使用方法；掌握选项菜单，子菜单和快捷菜单的使用方法。二;实验设备 eclipse 开发android 应用 android虚拟设备（ avd）三;实验内容：设计一个tab标签页，实现linearlayout，relativelayout，absolutelayout三种分页面之间的切换，每个页面的内容包括用户名和确定，取消两个按钮四：实验核心代码： androidmainfest.xml: <activity android:name=".tab1">&

16、lt;/activity> <activity android:name=".tab2"></activity> <activity android:name=".tab3"></activity>public class mainactivity extends tabactivity protected void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate); setcontentview(r.layo

17、ut.activity_main); tabhost tabhost=gettabhost(); layoutinflater.from(this).inflate(r.layout.tab1, tabhost.gettabcontentview(),true); layoutinflater.from(this).inflate(r.layout.tab2, tabhost.gettabcontentview(),true); layoutinflater.from(this).inflate(r.layout.tab3, tabhost.gettabcontentview(),true);

18、 tabhost.addtab(tabhost.newtabspec("tab1"). setindicator("线性布局").setcontent(r.id.layout01);6 / 25如果您需要使用本文档，请点击下载按钮下载! tabhost.addtab(tabhost.newtabspec("tab1"). setindicator("绝对布局").setcontent(r.id.layout02); tabhost.addtab(tabhost.newtabspec("tab1"

19、). setindicator("相对布局").setcontent(r.id.layout03); tab1,javapublic class tab1 extends activity public void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate);setcontentview(r.layout.tab1);tab2.javapublic class tab2 extends activity public void oncreate(bundle savedinsta

20、ncestate) super.oncreate(savedinstancestate); setcontentview(r.layout.tab2); tab3.javapublic class tab3 extends activity public void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate); setcontentview(r.layout.tab3); 五：运行结果截图：实验四：登陆界面和广播消息一：实验目的 了解使用intent进行组件通信的原理；7 / 25如果您需要使用本文

21、档，请点击下载按钮下载! 了解intent过滤器的原理与匹配机制； 掌握发送和接受广播消息的方法。 二：实验设备 eclipse 开发android 应用 android虚拟设备（ avd）三：实验内容先写一个登陆界面，包括用户名，密码，点击登陆时实现页面的跳转功能，在第二个页面使用intent发送消息，并调用sendbroadcast（）函数把intent携带的消息传送出去，用broadcastreceiver接受广播消息，在页面下方显示广播内容。四;实验核心代码：public class mainactivity extends activity private button button

22、; override protected void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); button=(button) findviewbyid(r.id.button1); button.setonclicklistener(new view.onclicklistener() public void onclick(view arg0) intent intent=new intent(mainactiv

23、ity.this,second.class); startactivity(intent);); public class second extends activity private button button2;private edittext edittext;protected void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate);setcontentview(r.layout.second);intent intent=getintent(); edittext=(edittext)

24、findviewbyid(r.id.e1); button2=(button) findviewbyid(r.id.button2);button2.setonclicklistener(new view.onclicklistener() public void onclick(view arg0) intent intent=new intent("com.example.broadcasttest.my_broadcast");intent.putextra("message", edittext.gettext().tostring();send

25、broadcast(intent);8 / 25如果您需要使用本文档，请点击下载按钮下载!);public class mybroadcastreceiver extends broadcastreceiverpublic void onreceive(context context, intent intent) string msg=intent.getstringextra("message");toast.maketext(context, msg, toast.length_short).show(); <activity android:name=&quo

26、t;.second"></activity> <receiver android:name=".mybroadcastreceiver"> <intent-filter> <action android:name="com.example.broadcasttest.my_broadcast"/> </intent-filter> </receiver>五：运行结果截图实验五：service绑定实现数据运算一：实验目的 了解service的原理和用途； 掌握本地服务的

27、管理和方法；9 / 25如果您需要使用本文档，请点击下载按钮下载! 掌握服务的隐式启动和显示启动方法； 掌握远程服务的绑定和调用方法。二：实验设备 eclipse 开发android 应用 android虚拟设备（ avd）三:实验内容以绑定方式使用service，获取service实例，当点击绑定服务时可以实现两个数的求差和比较大小功能，并输出结果，当点击取消绑定服务时，则无法运算。四：实验核心代码public class mathservice extends service private final ibinder mbinder=new localbinder(); public c

28、lass localbinder extends binder mathservice getservice() return mathservice.this; public ibinder onbind(intent intent) toast.maketext(this, "本地绑定:mathservice",toast.length_short).show(); return mbinder; public boolean onunbind(intent intent)toast.maketext(this, "取消本地绑定:mathservice&quo

29、t;, toast.length_short).show();return false; public long sub(long a,long b)return a-b; public int compare(long a,long b)if(a>b) return 1;else if(a=b) return 0;else return -1;public class mainactivity extends activity private mathservice mathservice; private button button1;10 / 25如果您需要使用本文档，请点击下载按

30、钮下载! private button button2; private button button3; private button button4; private edittext edittext1; private edittext edittext2; private edittext edittext3; private boolean isbound=false; override protected void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate); setcontentvi

31、ew(r.layout.activity_main); edittext1=(edittext) findviewbyid(r.id.e1); edittext2=(edittext) findviewbyid(r.id.e2); edittext3=(edittext) findviewbyid(r.id.e3); button1=(button) findviewbyid(r.id.but1); button2=(button) findviewbyid(r.id.but2); button3=(button) findviewbyid(r.id.but3); button4=(butto

32、n) findviewbyid(r.id.but4); button1.setonclicklistener(new view.onclicklistener() public void onclick(view v) if(!isbound) final intent serviceintent=new intent (mainactivity.this,mathservice.class); bindservice(serviceintent, mconnection, context.bind_auto_create); isbound=true; ); button4.setoncli

33、cklistener(new view.onclicklistener() public void onclick(view v) if(isbound) isbound=false; unbindservice(mconnection); mathservice=null; ); button2.setonclicklistener(new view.onclicklistener() public void onclick(view v) if(mathservice=null)11 / 25如果您需要使用本文档，请点击下载按钮下载!edittext3.settext("未绑定服

34、务");return ;string a = edittext1.gettext().tostring();long a1 = long.parselong(a);string b = edittext2.gettext().tostring();long b1 = long.parselong(b);long result=mathservice.sub(a1, b1);string msg=string.valueof(a1)+"-"+string.valueof(b)+"="+string.valueof(result);edittext

35、3.settext(msg);); button3.setonclicklistener(new view.onclicklistener() public void onclick(view v) if(mathservice=null)edittext3.settext("未绑定服务");return ;string a = edittext1.gettext().tostring();long a1 = long.parselong(a);string b = edittext2.gettext().tostring();long b1 = long.parselon

36、g(b);long result=mathspare(a1, b1);if(result=1)edittext3.settext(a+">"+b);else if(result=0)edittext3.settext(a+"="+b);else edittext3.settext(a+"<"+b);); private serviceconnection mconnection=new serviceconnection() public void onservicedisconnected(componentname a

37、rg0) mathservice=null;public void onserviceconnected(componentname name, ibinder service) mathservice=(mathservice.localbinder)service).getservice();12 / 25如果您需要使用本文档，请点击下载按钮下载!; 实验六：sqlite实现用户的增删改查一：实验目的 了解sqlite数据库的特点和体系及结构； 掌握sqlite数据库的建立和操作方法； 理解contentprovide的用途和原理； 掌握contentprovider的创建和使用方法。二：

38、实验设备 eclipse 开发android 应用 android虚拟设备（ avd）三:实验内容使用sqlite数据库实现用户（包括：姓名，年龄，身高）的添加数据，全部显示，清除显示，全部删除，id删除，id查询，id更新的功能。四：实验核心代码public class mainactivity extends actionbaractivity private edittext et_name;private edittext et_sex;private edittext et_department;private edittext et_id;private edittext et_s

39、alary;private myopenhelper oh;private sqlitedatabase db;private textview tv;private linearlayout ll;overrideprotected void oncreate(bundle savedinstancestate) super.oncreate(savedinstancestate);setcontentview(r.layout.activity_main);oh = new myopenhelper(mainactivity.this, "test.db", null,

40、 1);db = oh.getwritabledatabase();et_name = (edittext) findviewbyid(r.id.et_name);13 / 25如果您需要使用本文档，请点击下载按钮下载!et_sex = (edittext) findviewbyid(r.id.et_sex);et_department = (edittext) findviewbyid(r.id.et_department);et_salary = (edittext) findviewbyid(r.id.et_salary);et_id = (edittext) findviewbyid(

41、r.id.et_id);ll = (linearlayout) findviewbyid(r.id.ll);public void add(view v)db = oh.getwritabledatabase();string name=et_name.gettext().tostring();string sex=et_sex.gettext().tostring();string department=et_department.gettext().tostring();string salary=et_salary.gettext().tostring();contentvalues v

42、alues=new contentvalues();values.put("name",name );values.put("sex", sex);values.put("department",department);values.put("salary", salary);db.insert("staff", null, values);tv=new textview(mainactivity.this);tv.settext("添加成功");db.close();pub

43、lic void show(view v)db = oh.getwritabledatabase();cursor cursor=db.query("staff", null, null, null, null, null, null, null);while(cursor.movetonext()string id=cursor.getstring(cursor.getcolumnindex("_id");string name=cursor.getstring(cursor.getcolumnindex("name");strin

44、g sex=cursor.getstring(cursor.getcolumnindex("sex");string department=cursor.getstring(cursor.getcolumnindex("department");string salary=cursor.getstring(cursor.getcolumnindex("salary");tv=new textview(mainactivity.this);tv.settext("id:"+id+" ;"+&quo

45、t;name:"+name+" ;"+"sex:"+sex+" ;"+"department:"+department+" ;"+"salary"+salary);ll.addview(tv);db.close();public void clear(view v)ll.removeallviews();14 / 25如果您需要使用本文档，请点击下载按钮下载!public void deleteall(view v)db = oh.getwritabledataba

46、se();db.delete("staff", null, null);tv=new textview(mainactivity.this);tv.settext("删除成功");db.close();public void deletebyid(view v)db = oh.getwritabledatabase();string id=et_id.gettext().tostring();db.delete("staff", "_id=?", new stringid);db.close();tv=new te

47、xtview(mainactivity.this);tv.settext("id删除成功");public void findbyid(view v)db = oh.getwritabledatabase();string id=et_id.gettext().tostring();cursor cursor=db.query("staff", null, "_id=?", new stringid, null, null, null, null);while(cursor.movetonext()id=cursor.getstrin

48、g(cursor.getcolumnindex("_id");string name=cursor.getstring(cursor.getcolumnindex("name");string sex=cursor.getstring(cursor.getcolumnindex("sex");string department=cursor.getstring(cursor.getcolumnindex("department");string salary=cursor.getstring(cursor.getc

49、olumnindex("salary");tv=new textview(mainactivity.this);tv.settext(id+""+name+""+sex+""+department+""+salary);ll.addview(tv);tv=new textview(mainactivity.this);tv.settext("id查询成功");db.close();public void updatebyid(view v)db = oh.getwritabl

50、edatabase();string id=et_id.gettext().tostring();string name=et_name.gettext().tostring();string sex=et_sex.gettext().tostring();string department=et_department.gettext().tostring();string salary=et_salary.gettext().tostring();15 / 25如果您需要使用本文档，请点击下载按钮下载!contentvalues values=new contentvalues();valu

51、es.put("name",name);values.put("sex", sex);values.put("department",department);values.put("salary", salary);db.update("staff", values, "_id=?", new stringid);tv=new textview(mainactivity.this);tv.settext("更新id成功");db.close();publi

52、c class myopenhelper extends sqliteopenhelper public myopenhelper(context context, string name, cursorfactory factory,int version) super(context, name, factory, version);overridepublic void oncreate(sqlitedatabase db) db.execsql("create table staff(_id integer primary key autoincrement,name tex

53、t,sex text,department text,salary float)");overridepublic void onupgrade(sqlitedatabase db, int oldversion, int newversion) 五：运行结果截图实验七：天气预报16 / 25如果您需要使用本文档，请点击下载按钮下载!一：实验目的 了解位置服务的概念； 了解地图密钥的申请方法； 掌握获取地理信息的方法；二：实验设备 eclipse 开发android 应用 android虚拟设备（ avd）三：实验内容 写一个项目，实现显示天气预报的用户界面，显示已发送sms短信的用户界面，不同地区天气的转换四：实验核心代码package com.example.weather;import java.io.bufferedreader;import java.io.inputstreamreader;import .httpurlconnection;import .url;import .urlencoder;import java.util.a