基于android开发实验报告总结

于android报告总结组员：指导老师：2016.12.15TOC\o"1-2"\h\z\u一Android开发环境的搭建 3的及要求 3设备（环境）及要求 3内容 3步骤 3 4的运行结果及分析 93设备（环境）及要求 10三GUI件Widget的使用 18的及要求 18设备（环境）及要求 18内容 19步骤 19 19的运行结果及分析 28四SQLite应用 29的及要求 29设备（环境）及要求 30内容 30步骤 30 30的运行结果及分析 41AndroidEclipse+Android2.Android3.ActivityintentActivityPCJDKEclipseAndroidSDKADTEclipse+Android”helloworld”工程两Activity，Activity参数传递步骤1JDK1.6，配置变量，如果所示。中的问题1.MainActivity.javapackagecom.example.app;importandroid.os.Bundle;importandroid.app.Activity;importandroid.content.Intent;importandroid.view.Menu;importandroid.view.View;importandroid.widget.Button;publicclassMainActivityextendsActivity{privateButtonbutton;privatemyappma;@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);button=(Button)this.findViewById(R.id.button);button.setOnClickListener(newView.OnClickListener(){@OverridepublicvoidonClick(Viewv){//TODO动生成的方法存根ma.setName(Intent intent=newIntent(MainActivity.this,other.class);startActivity(intent);}});}@OverridepublicbooleanonCreateOptionsMenu(Menumenu){//Inflatethemenu;thisaddsitemstotheactionifitispresent.getMenuInflater().inflate(R.menu.main,menu);returntrue;}}2.myapp.javapackagecom.example.app;importandroid.app.Application;importandroid.os.Bundle;publicclassmyappextendsApplication{privateStringname;publicStringgetName(){returnname;}publicvoidsetName(Stringname){=name;}@OverridepublicvoidonCreate(){//TODO动生成的方法存根super.onCreate();setName(}}other.javapublicclassotherextendsActivity{privateTextViewtextview;privatemyappma;@OverrideprotectedvoidonCreate(BundlesavedInstanceState){//TODO动生成的方法存根super.onCreate(savedInstanceState);ma=(myapp)getApplication();textview.setText(" >appname"+ma.getName());}}分析AndroidUIAndroidAndroid、控件使用。要求按要求Android使用一定技术现其功能。备（环境）及要求PC算机JDK4)AndroidSDK5)ADTBMIEclipseEclipseEclipse“AndroidApplicationProject”子菜在“NewAndroidApplication”对话框ne1t的新对话框都Next最后个对话框Finish，新左边列表res夹下values夹双击下strings.xmlAndroidResourcesAddg在e名如图“string.xml黄色部分：<?xmlversion="1.0"<resources><stringname="app_name">app2_1</string>ge><><stringworld!</string><string<string</string><string</string><string</string><string(cm)</string><string(kg)</string><stringBMI</string>ge>/g></resources>reslayoutactivity_main.xml。击activity_main.xml进代码界面将所代码删除。GraphicalLayoutLayouts从选择LinearLayout(vertical)组图标拖曳至右。如图。添加控件FormWidgets3w131个（含2n122和1n1。置属性组件textView1radioGroupradio0radio1editText1editText2button1属性值android:text="@string/appname"组件textView1radioGroupradio0radio1editText1editText2button1属性值android:text="@string/appname"android:layout_gravity="center"android:orientation="horizontal"android:text="@string/sex1"android:text="@string/sex2"android:inputType="numberDecimal|numberSigned"android:inputType="numberDecimal|numberSigned"android:text="@string/hight"android:text="@string/count"置完属性后，及其布局如图所示。并编写事代码src夹，单击其下com.example.app2_1，单击MainActivity.java。输黄色底色代：packagecom.example.app2_1;importandroid.os.Bundle;importandroid.app.Activity;importandroid.view.Menu;importandroid.view.View;importandroid.widget.Button;importandroid.widget.EditText;importandroid.widget.Toast;publicclassMainActivityextendsActivity{@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);Buttonbt=(Button)findViewById(R.id.button1);bt.setOnClickListener(newView.OnClickListener(){@OverridepublicvoidonClick(Viewarg0){//TODOAuto-generatedmethodstubEditTexth=(EditText)findViewById(R.id.editText1);Stringh1=h.getText().toString();doublehh;if("".equals(h1)){hh=0;}else{hh=Double.valueOf(h1);}EditTextw=Stringw1=w.getText().toString();doubleww;if("".equals(w1)){ww=0;}else{ww=Double.valueOf(w1);}if(ww==0||hh==0){Toastmessage.show();}else{Doublebmi=ww/(hh*hh/10000);Stringbmistr=bmi.toString();Toastmessage=Toast.makeText(MainActivity.this,bmistr,Toast.LENGTH_SHORT);message.show();}}});}@OverridepublicbooleanonCreateOptionsMenu(Menumenu){//Inflatethemenu;thisaddsitemstotheactionifitispresent.getMenuInflater().inflate(R.menu.main,menu);returntrue;}}5“（AVDManager）图标打开D的DDt，AndroidAnzroideDr，RunAs项下的“AndroidApplication”子菜项“（AVDManager）图标打开D的DDt，AndroidAnzroidAndroidGUIWidget、布局组设备（环境）PCJDK3)Eclipse4)AndroidSDK5)ADT框。单项自动提示文本框、多项自动提示文本框、下拉列表。步骤新建项目Button/Editres/layput中修改布局文件main.xmlActivityButtonActivityDialogDialogPro.java核心代码（关键代码，及调试中的问题EGGERMicrocontrollerGmbH&Co.KGEGGERMicrocontrollerGmbH&Co.KGSolutionsforrealtimemicrocontrollerapplicationsC-filegeneratedby:*GUI_BuilderforemWinversion5.22CompiledJul 42013,15:16:01(c)2013SeggerMicrocontrollerGmbH&Co.KGInternet:[url][/url] t:[email]support@[/email]USERSTART(Optionallyinsertadditionalincludes)USEREND#include"DIALOG.h"Defines#defineID_WINDOW_00#defineID_BUTTON_00x170#defineID_BUTTON_10x171#defineID_ICONVIEW_00x250#defineID_DROPDOWN_00X180#defineID_GRAPH_00x220#defineID_EDIT_00x100USERSTART(Optionallyinsertadditionaldefines)USERENDStaticdataUSERSTART(Optionallyinsertadditionalstaticdata)USEREND_aDialogCreatestaticconstGUI_WIDGET_CREATE_INFO_aDialogCreate[]={{WINDOW_CreateIndirect,"Window",ID_WINDOW_0,2,0,240,320,0,0x0,0},{BUTTON_CreateIndirect,"Button",ID_BUTTON_0,79,268,80,20,0,0x0,0},{GRAPH_CreateIndirect,"Graph",ID_GRAPH_0,20,110,200,100,0,0x0,0},{EDIT_CreateIndirect,"Edit",ID_EDIT_0,58,35,120,63,0,0x64,0},//USERSTART(Optionallyinsertadditionalwidgets)//USEREND};StaticcodeUSERSTART(Optionallyinsertadditionalstaticcode)USEREND_cbDialogstaticvoid_cbDialog(WM_MESSAGE*pMsg){WM_HWINhItem;int NCode;int Id;//USERSTART(Optionallyinsertadditionalvariables)//USERENDswitch(pMsg->MsgId){caseWM_INIT_DIALOG:////Initializationof'Edit'//hItem=WM_GetDialogItem(pMsg->hWin,ID_EDIT_0);EDIT_SetText(hItem,"ZHANGYI");//USERSTART(Optionallyinsertadditionalcodeforfurtherwidgetinitialization)//USERENDbreak;caseWM_NOTIFY_PARENT:Id =WM_GetId(pMsg->hWinSrc);NCode=pMsg->Data.v;switch(Id){caseID_BUTTON_0://Notificationssentby'Button'switch(NCode){caseWM_NOTIFICATION_CLICKED://USERSTART(Optionallyinsertcodeforreactingonnotificationmessage)//USERENDbreak;caseWM_NOTIFICATION_RELEASED://USERSTART(Optionallyinsertcodeforreactingonnotificationmessage)//USERENDbreak;//USERSTART(Optionallyinsertadditionalcodeforfurthernotificationhandling)//USEREND}break;caseID_EDIT_0://Notificationssentby'Edit'switch(NCode){caseWM_NOTIFICATION_CLICKED://USERSTART(Optionallyinsertcodeforreactingonnotificationmessage)//USERENDbreak;caseWM_NOTIFICATION_RELEASED://USERSTART(Optionallyinsertcodeforreactingonnotificationmessage)//USERENDbreak;caseWM_NOTIFICATION_VALUE_CHANGED://USERSTART(Optionallyinsertcodeforreactingonnotificationmessage)//USERENDbreak;//USERSTART(Optionallyinsertadditionalcodeforfurthernotificationhandling)//USEREND}break;//USERSTART(OptionallyinsertadditionalcodeforfurtherIds)//USEREND}break;//USERSTART(Optionallyinsertadditionalmessagehandling)//USERENDdefault:WM_DefaultProc(pMsg);break;}}/*********************************************************************** Publiccode************************************************************************//*********************************************************************** CreateWindow*/voidMain_Task(void){//???GUI_Init();WM_SetDesktopColor(GUI_WHITE); /*allyupdatedesktopwindow*/WM_SetCreateFlags(WM_CF_MEMDEV); /*Usememoryvicesonallwindowstoavoidflicker*///PROGBAR_SetDefaultSkin(PROGBAR_SKIN_FLEX);//FRAMEWIN_SetDefaultSkin(FRAMEWIN_SKIN_FLEX);//PROGBAR_SetDefaultSkin(PROGBAR_SKIN_FLEX);//BUTTON_SetDefaultSkin(BUTTON_SKIN_FLEX);//CHECKBOX_SetDefaultSkin(CHECKBOX_SKIN_FLEX);//DROPDOWN_SetDefaultSkin(DROPDOWN_SKIN_FLEX);//SCROLLBAR_SetDefaultSkin(SCROLLBAR_SKIN_FLEX);//SLIDER_SetDefaultSkin(SLIDER_SKIN_FLEX);//HEADER_SetDefaultSkin(HEADER_SKIN_FLEX);//RADIO_SetDefaultSkin(RADIO_SKIN_FLEX);//????????GUI_ExecDialogBox(_aDialogCreate,GUI_COUNTOF(_aDialogCreate),&_cbDialog,0,0,0);}}//USERSTART(Optionallyinsertadditionalpubliccode)//USEREND分析SQLiteGUIsharedPreferencePCJDK3)Eclipse4)AndroidSDK5)ADTeI。按钮响应代码保存按钮Preference件退出应用程序或关时自动保存信息到共享文件步骤SharedPreference,在resvalue-zh，在lRes\layoutmain.xmlActivitySharedPreference.java核心代码关键代码调试中的问题#include<sqlite3.h>#include<string>usingnamespacestd;voiddoTest(){sqlite3*conn=NULL;//1intresult=sqlite3_open("D:/mytest.db",&conn);if(result!=SQLITE_OK){sqlite3_close(conn);return;}constchar*createTableSQL="CREATETABLETESTTABLE(int_colINT,float_colREAL,string_colTEXT)";sqlite3_stmt*stmt=NULL;intlen=strlen(createTableSQL);//2.sqlite3_finalizesqlite3_stmtif(sqlite3_prepare_v2(conn,createTableSQL,len,&stmt,NULL)!=SQLITE_OK){if(stmt)sqlite3_close(conn);return;}//3.sqlite3_stepDDL而言，sqlite3_step正确SQLITE_DONE。//SELECTSQLITE_ROWSQLITE_DONE。if(sqlite3_step(stmt)!=SQLITE_DONE){sqlite3_finalize(stmt);sqlite3_close(conn);return;}//4.释放对象sqlite3_finalize(stmt);printf("Succeedtocreatetesttablenow.\n");//5.sqlite3_stmt。constchar*selectSQL="SELECT*FROMTESTTABLEWHERE1=0";sqlite3_stmt*stmt2=NULL;if(sqlite3_prepare_v2(conn,selectSQL,strlen(selectSQL),&stmt2,NULL)!=SQLITE_OK){if(stmt2)sqlite3_finalize(stmt2);sqlite3_close(conn);return;}//6select，获取结果集中字段量。intfieldCount=sqlite3_column_count(stmt2);printf("Thecolumncountis%d.\n",fieldCount);//7meta类型。for(inti0ifieldCount++i//TableSQLite的类型本身是动态，所以在没有时无法通过sqlite3_column_typesqlite3_column_type，//sqlite3_column_decltype。stringstype=sqlite3_column_decltype(stmt2,i);stype=strlwr((char*)stype.c_str());//以决定字段亲缘性规则解析if(stype.find("int")!=string::npos){printf("Thetypeof%dthcolumnisINTEGER.\n",i);}elseif(stype.find("char")!=string::npos||stype.find("text")!= string::npos){printf("Thetypeof%dthcolumnisTEXT.\n",i);}elseif(stype.find("real")!=string::npos||stype.find("floa")!= string::npos||stype.find("doub")!= string::npos){printf("Thetypeof%dthcolumnisDOUBLE.\n",i);}}sqlite3_finalize(stmt2);//8.constchar*dropSQL="DROPTABLETESTTABLE";sqlite3_stmt*stmt3=NULL;if(sqlite3_prepare_v2(conn,dropSQL,strlen(dropSQL),&stmt3,NULL)!=SQLITE_OK){if(stmt3)sqlite3_finalize(stmt3);sqlite3_close(conn);return;}if(sqlite3_step(stmt3)==SQLITE_DONE){printf("Thetesttablehasbeendropped.\n");}sqlite3_finalize(stmt3);sqlite3_close(conn);}intmain(){doTest();return0;}/doeteeisofis1thcolumnisDOUBLE.//Thetypeof2thcolumnisTEXT.//Thetesttablehasbeendropped.、常规数据插入1).创建测试数据表。2).通过INSERT语句插入测试数据。3).删除测试表。、常规数据插入1).创建测试数据表。2).通过INSERT语句插入测试数据。3).删除测试表。见以下代码及关键性注释：#include<sqlite3.h>#include<string>#include<stdio.h>usingnamespacestd;voiddoTest(){sqlite3*conn=NULL;//1.打开数据库intresult=sqlite3_open("D:/mytest.db",&conn);if(result!=SQLITE_OK){sqlite3_close(conn);return;}constchar*createTableSQL="CREATETABLETESTTABLE(int_colINT,float_colREAL,string_colTEXT)";sqlite3_stmt*stmt=NULL;intlen=strlen(createTableSQL);//2.sqlite3_finalizesqlite3_stmtif(sqlite3_prepare_v2(conn,createTableSQL,len,&stmt,NULL)!=SQLITE_OK){if(stmt)sqlite3_close(conn);return;}//3.sqlite3_stepDDL而言，sqlite3_step正确SQLIT