com.example.myapplication2:style/Base.TextAppearance.AppCompat.Widget.ActionBar.Title.Inverse = 0x7f100033
com.example.myapplication2:id/search_mag_icon = 0x7f080187
com.example.myapplication2:styleable/CoordinatorLayout = 0x7f11002c
com.example.myapplication2:style/Widget.MaterialComponents.NavigationRailView = 0x7f1003cb
com.example.myapplication2:style/Widget.MaterialComponents.TimePicker.ImageButton = 0x7f1003f3
com.example.myapplication2:styleable/AnimatedStateListDrawableTransition = 0x7f110009
com.example.myapplication2:style/Widget.AppCompat.ListMenuView = 0x7f1002d0
com.example.myapplication2:dimen/mtrl_btn_stroke_size = 0x7f060185
com.example.myapplication2:style/ThemeOverlay.MaterialComponents.MaterialAlertDialog.Picker.Date.Header.Text.Day = 0x7f100290
com.example.myapplication2:style/Platform.MaterialComponents.Dialog = 0x7f10012b
com.example.myapplication2:style/Base.V14.ThemeOverlay.MaterialComponents.MaterialAlertDialog = 0x7f100096
com.example.myapplication2:xml/standalone_badge = 0x7f120002
com.example.myapplication2:style/Base.V7.Widget.AppCompat.AutoCompleteTextView = 0x7f1000b4
com.example.myapplication2:style/Widget.MaterialComponents.AppBarLayout.PrimarySurface = 0x7f100383
com.example.myapplication2:id/material_timepicker_mode_button = 0x7f080115
com.example.myapplication2:style/Widget.Material3.TextInputLayout.FilledBox.Dense = 0x7f100373
com.example.myapplication2:style/Widget.Material3.CardView.Filled = 0x7f100314
com.example.myapplication2:style/Widget.MaterialComponents.BottomNavigationView.PrimarySurface = 0x7f10038f
com.example.myapplication2:style/Theme.AppCompat.DayNight.DialogWhenLarge = 0x7f1001df
com.example.myapplication2:style/Widget.MaterialComponents.CompoundButton.RadioButton = 0x7f1003ab
com.example.myapplication2:styleable/AppCompatSeekBar = 0x7f11000f
com.example.myapplication2:style/Widget.Material3.Tooltip = 0x7f10037d
com.example.myapplication2:style/Widget.AppCompat.ActionMode = 0x7f1002a8
com.example.myapplication2:style/Base.Widget.MaterialComponents.Chip = 0x7f100106
com.example.myapplication2:string/material_minute_selection = 0x7f0f0049
com.example.myapplication2:style/Widget.AppCompat.Light.ActionMode.Inverse = 0x7f1002c6
com.example.myapplication2:style/Base.Theme.MaterialComponents.Light.Dialog.FixedSize = 0x7f100070
com.example.myapplication2:attr/transitionEasing = 0x7f030420
com.example.myapplication2:style/ThemeOverlay.MaterialComponents.ActionBar.Surface = 0x7f10027a
com.example.myapplication2:styleable/Transition = 0x7f11008d
com.example.myapplication2:style/Base.V14.Theme.MaterialComponents = 0x7f100089
com.example.myapplication2:style/Base.Widget.Material3.TabLayout.Secondary = 0x7f100103
com.example.myapplication2:styleable/MaterialAutoCompleteTextView = 0x7f11004e
com.example.myapplication2:string/path_password_strike_through = 0x7f0f0082
com.example.myapplication2:style/Widget.Material3.FloatingActionButton.Secondary = 0x7f10033a
com.example.myapplication2:styleable/DrawerLayout = 0x7f110030
com.example.myapplication2:style/Base.Widget.Material3.CompoundButton.RadioButton = 0x7f1000f8
com.example.myapplication2:styleable/CollapsingToolbarLayout_Layout = 0x7f110023
com.example.myapplication2:xml/backup_rules = 0x7f120000
com.example.myapplication2:string/material_slider_range_start = 0x7f0f0051
com.example.myapplication2:style/ShapeAppearanceOverlay.BottomRightCut = 0x7f100154
com.example.myapplication2:style/Widget.MaterialComponents.BottomAppBar = 0x7f10038a
com.example.myapplication2:id/vertical_only = 0x7f0801ed
com.example.myapplication2:styleable/CoordinatorLayout_Layout = 0x7f11002d
com.example.myapplication2:style/Widget.Material3.Badge = 0x7f1002fd
com.example.myapplication2:dimen/design_tab_scrollable_min_width = 0x7f06008c
com.example.myapplication2:style/Widget.MaterialComponents.PopupMenu.ListPopupWindow = 0x7f1003d3
com.example.myapplication2:dimen/design_bottom_sheet_elevation = 0x7f06006d
com.example.myapplication2:style/TextAppearance.AppCompat.Caption = 0x7f100176
com.example.myapplication2:string/m3_sys_typescale_headline_medium_font = 0x7f0f003d
com.example.myapplication2:style/Theme.MaterialComponents.Dialog.Bridge = 0x7f100223
com.example.myapplication2:styleable/AnimatedStateListDrawableCompat = 0x7f110007
com.example.myapplication2:style/Widget.Material3.TextInputEditText.FilledBox = 0x7f10036e
com.example.myapplication2:drawable/abc_list_pressed_holo_dark = 0x7f07002f
com.example.myapplication2:layout/mtrl_picker_fullscreen = 0x7f0b005b
com.example.myapplication2:style/TextAppearance.Material3.DisplaySmall = 0x7f1001b9
com.example.myapplication2:style/Platform.ThemeOverlay.AppCompat.Light = 0x7f100130
com.example.myapplication2:styleable/RangeSlider = 0x7f110071
com.example.myapplication2:style/Widget.Material3.Button.TonalButton = 0x7f100310
com.example.myapplication2:style/Base.ThemeOverlay.MaterialComponents.Dialog.Alert.Framework = 0x7f100080
com.example.myapplication2:style/Widget.MaterialComponents.Button.UnelevatedButton.Icon = 0x7f10039d
com.example.myapplication2:styleable/PropertySet = 0x7f11006f
com.example.myapplication2:drawable/bgp3 = 0x7f0700a2
com.example.myapplication2:layout/material_time_input = 0x7f0b0041
com.example.myapplication2:style/Widget.AppCompat.CompoundButton.CheckBox = 0x7f1002b3
com.example.myapplication2:style/Base.V24.Theme.Material3.Light.Dialog = 0x7f1000a9
com.example.myapplication2:style/Widget.MaterialComponents.NavigationRailView.Compact = 0x7f1003ce
com.example.myapplication2:style/Widget.AppCompat.DrawerArrowToggle = 0x7f1002b6
com.example.myapplication2:styleable/NavigationView = 0x7f11006a
com.example.myapplication2:style/TextAppearance.AppCompat.Small = 0x7f100188
com.example.myapplication2:id/sharedValueSet = 0x7f08018e
com.example.myapplication2:style/TextAppearance.Material3.LabelSmall = 0x7f1001bf
com.example.myapplication2:style/Widget.Material3.MaterialCalendar.Year.Selected = 0x7f100352
com.example.myapplication2:attr/textAppearanceDisplayMedium = 0x7f0303af
com.example.myapplication2:style/Widget.Material3.CollapsingToolbar.Large = 0x7f100327
com.example.myapplication2:style/Widget.Material3.MaterialTimePicker.Display = 0x7f10035a
com.example.myapplication2:style/Theme.MaterialComponents.Light.Dialog.MinWidth = 0x7f100235
com.example.myapplication2:style/Widget.Material3.FloatingActionButton.Large.Primary = 0x7f100335
com.example.myapplication2:drawable/abc_star_half_black_48dp = 0x7f070047
com.example.myapplication2:style/Widget.Design.NavigationView = 0x7f1002f0
com.example.myapplication2:style/Widget.MaterialComponents.TabLayout.PrimarySurface = 0x7f1003dd
com.example.myapplication2:style/Widget.MaterialComponents.TextInputLayout.OutlinedBox = 0x7f1003e6
com.example.myapplication2:string/abc_searchview_description_clear = 0x7f0f0013
com.example.myapplication2:style/Widget.MaterialComponents.Button.TextButton.Dialog.Icon = 0x7f100399
com.example.myapplication2:layout/material_clock_display = 0x7f0b0038
com.example.myapplication2:styleable/Slider = 0x7f110079
com.example.myapplication2:color/design_dark_default_color_primary = 0x7f050038
com.example.myapplication2:style/Widget.Material3.BottomSheet.Modal = 0x7f100302
com.example.myapplication2:style/ThemeOverlay.MaterialComponents.BottomAppBar.Primary = 0x7f100280
com.example.myapplication2:styleable/MaterialToolbar = 0x7f11005b
com.example.myapplication2:style/Platform.MaterialComponents.Light = 0x7f10012c
com.example.myapplication2:id/submit_area = 0x7f0801b2
com.example.myapplication2:style/Base.TextAppearance.AppCompat.Subhead = 0x7f10002a
com.example.myapplication2:dimen/tooltip_y_offset_non_touch = 0x7f060245
com.example.myapplication2:style/Widget.Material3.ChipGroup = 0x7f100321
com.example.myapplication2:style/Base.Widget.AppCompat.RatingBar.Small = 0x7f1000e6
com.example.myapplication2:style/Widget.Material3.ExtendedFloatingActionButton.Secondary = 0x7f100332
com.example.myapplication2:style/ThemeOverlay.Material3.DynamicColors.Light = 0x7f100260
西安邮电大学移动应用开发实验二(存储)
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更新于2023-07-18
收藏 24.2MB RAR 举报
在IT行业中,数据库是至关重要的组成部分,特别是在移动应用开发领域。SQLite是一款轻量级的、开源的、嵌入式的关系型数据库,广泛应用于Android、iOS等移动操作系统中。本实验“西安邮电大学移动应用开发实验二(存储)”重点探讨了如何在Android应用程序中利用SQLite来存储和管理数据。
SQLite提供了丰富的SQL语法,使得开发者可以方便地进行数据的增删查改操作。在Android系统中,SQLite数据库是通过SQLiteOpenHelper这个辅助类来创建和管理的。SQLiteOpenHelper有两个关键的方法:onCreate()和onUpgrade()。前者在数据库首次创建时被调用,用于创建表结构;后者则在数据库版本升级时执行,可以用来更新表结构或数据。
在创建SQLite数据库时,我们需要定义数据表的结构,包括字段名和数据类型。例如,可以创建一个名为“Student”的表,包含“id”(整型,主键)、“name”(文本型)和“age”(整型)字段。通过SQLiteOpenHelper的子类,我们可以实现这些方法,编写SQL语句来完成表的创建。
在Android中,SQLiteDatabase对象是执行SQL命令的接口。我们可以通过SQLiteOpenHelper的getWritableDatabase()或getReadableDatabase()方法获取该对象。然后,可以使用execSQL()方法执行DDL(数据定义语言)语句,如创建、删除表;或者使用query()、insert()、update()、delete()等方法执行DML(数据操纵语言)操作。
对于“MyApplication2”这个项目,可能包含了Android Studio工程结构,包括AndroidManifest.xml文件、布局资源文件、Java源代码等。其中,源代码部分可能有自定义的SQLiteOpenHelper类,以及在Activity或Fragment中操作数据库的示例代码。开发者通常会创建一个ContentProvider来封装数据库操作,提供统一的接口供其他组件使用,以遵循Android的应用程序设计原则。
此外,为了在界面上显示SQLite中的数据,可以使用ListView、RecyclerView等组件结合CursorAdapter或CursorLoader。这样,当查询结果改变时,界面会自动更新,实现了数据和视图的绑定。
总结一下,这个实验主要涵盖了以下几个知识点:
1. SQLite数据库的基本概念和特点。
2. Android中使用SQLiteOpenHelper创建和升级数据库。
3. SQL语句的编写,包括创建表、插入、查询、更新和删除数据。
4. 使用SQLiteDatabase对象执行SQL命令。
5. 数据库操作与Android UI组件的结合,如ListView和RecyclerView。
6. 可能涉及到的ContentProvider和CursorAdapter的使用。
通过这个实验,学生将深入理解SQLite在移动应用开发中的作用,并掌握实际操作技巧,为后续的项目开发打下坚实的基础。
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