Android中Sqlite数据库跟Listview对数据进行增删改查附带登录注册功能

Android Stdio开发的一个应用，运用Sqlite数据库和listview实现在前端进行对Sqlite的增删改查，数据库中的数据显示在Listview上，在Editetext上输入关键字会查询带有关键字的数据，点击Listview的每一行都可以对该行的数据进行修改或删除。登陆注册功能都有，有两张表student和user，本人现为学生，技术还不够到位，有些不足的地方欢迎改正；项目成果图请查看：https://blog.csdn.net/qq_43378689/article/details/102788477

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
 *
 * This class was automatically generated by the
 * gradle plugin from the resource data it found. It
 * should not be modified by hand.
 */
package androidx.activity;

public final class R {
    private R（） {}

    public static final class attr {
        private attr（） {}

        public static final int alpha = 0x7f020027;
        public static final int font = 0x7f020082;
        public static final int fontProviderAuthority = 0x7f020084;
        public static final int fontProviderCerts = 0x7f020085;
        public static final int fontProviderFetchStrategy = 0x7f020086;
        public static final int fontProviderFetchTimeout = 0x7f020087;
        public static final int fontProviderPackage = 0x7f020088;
        public static final int fontProviderQuery = 0x7f020089;
        public static final int fontstyle = 0x7f02008a;
        public static final int fontVariationSettings = 0x7f02008b;
        public static final int fontWeight = 0x7f02008c;
        public static final int ttcIndex = 0x7f020142;
    }
    public static final class color {
        private color（） {}

        public static final int notification_action_color_filter = 0x7f04003f;
        public static final int notification_icon_bg_color = 0x7f040040;
        public static final int ripple_material_light = 0x7f04004a;
        public static final int secondary_text_default_material_light = 0x7f04004c;
    }
    public static final class dimen {
        private dimen（） {}

        public static final int compat_button_inset_horizontal_material = 0x7f050050;
        public static final int compat_button_inset_vertical_material = 0x7f050051;
        public static final int compat_button_padding_horizontal_material = 0x7f050052;
        public static final int compat_button_padding_vertical_material = 0x7f050053;
        public static final int compat_control_corner_material = 0x7f050054;
        public static final int compat_notification_large_icon_max_height = 0x7f050055;
        public static final int compat_notification_large_icon_max_width = 0x7f050056;
        public static final int notification_action_icon_size = 0x7f050060;
        public static final int notification_action_text_size = 0x7f050061;
        public static final int notification_big_circle_margin = 0x7f050062;
        public static final int notification_content_margin_start = 0x7f050063;
        public static final int notification_large_icon_height = 0x7f050064;
        public static final int notification_large_icon_width = 0x7f050065;
        public static final int notification_main_column_padding_top = 0x7f050066;
        public static final int notification_media_narrow_margin = 0x7f050067;
        public static final int notification_right_icon_size = 0x7f050068;
        public static final int notification_right_side_padding_top = 0x7f050069;
        public static final int notification_small_icon_b

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-10-27 12:20  Mydatabase2\
     文件         222  2019-10-27 12:14  Mydatabase2\.gitignore
     目录           0  2019-10-27 12:14  Mydatabase2\.gradle\
     目录           0  2019-10-27 12:47  Mydatabase2\.gradle\5.4.1\
     目录           0  2019-10-27 12:14  Mydatabase2\.gradle\5.4.1\executionHistory\
     文件     2434251  2019-10-28 19:58  Mydatabase2\.gradle\5.4.1\executionHistory\executionHistory.bin
     文件          17  2019-10-28 20:24  Mydatabase2\.gradle\5.4.1\executionHistory\executionHistory.lock
     目录           0  2019-10-27 12:14  Mydatabase2\.gradle\5.4.1\fileChanges\
     文件           1  2019-10-28 20:24  Mydatabase2\.gradle\5.4.1\fileChanges\last-build.bin
     目录           0  2019-10-27 12:46  Mydatabase2\.gradle\5.4.1\fileContent\
     文件          17  2019-10-28 20:01  Mydatabase2\.gradle\5.4.1\fileContent\fileContent.lock
     目录           0  2019-10-27 12:47  Mydatabase2\.gradle\5.4.1\fileHashes\
     文件      130883  2019-10-28 19:58  Mydatabase2\.gradle\5.4.1\fileHashes\fileHashes.bin
     文件          17  2019-10-28 20:24  Mydatabase2\.gradle\5.4.1\fileHashes\fileHashes.lock
     文件       18565  2019-10-27 12:48  Mydatabase2\.gradle\5.4.1\fileHashes\resourceHashesCache.bin
     文件           0  2019-10-28 12:32  Mydatabase2\.gradle\5.4.1\gc.properties
     目录           0  2019-10-27 13:15  Mydatabase2\.gradle\5.4.1\javaCompile\
     文件      257477  2019-10-28 19:48  Mydatabase2\.gradle\5.4.1\javaCompile\classAnalysis.bin
     文件          17  2019-10-28 19:51  Mydatabase2\.gradle\5.4.1\javaCompile\javaCompile.lock
     文件       22489  2019-10-28 19:51  Mydatabase2\.gradle\5.4.1\javaCompile\taskHistory.bin
     目录           0  2019-10-28 20:51  Mydatabase2\.gradle\5.4.1\vcsmetadata-1\
     目录           0  2019-10-27 12:14  Mydatabase2\.gradle\buildOutputCleanup\
     文件          17  2019-10-28 20:24  Mydatabase2\.gradle\buildOutputCleanup\buildOutputCleanup.lock
     文件          53  2019-10-27 12:14  Mydatabase2\.gradle\buildOutputCleanup\cache.properties
     文件       25877  2019-10-28 19:58  Mydatabase2\.gradle\buildOutputCleanup\outputFiles.bin
     目录           0  2019-10-27 12:14  Mydatabase2\.gradle\vcs-1\
     文件           0  2019-10-28 12:32  Mydatabase2\.gradle\vcs-1\gc.properties
     目录           0  2019-10-28 20:46  Mydatabase2\.idea\
     文件          10  2019-10-27 12:14  Mydatabase2\.idea\.name
     目录           0  2019-10-27 12:14  Mydatabase2\.idea\caches\
     文件         537  2019-10-28 00:42  Mydatabase2\.idea\caches\build_file_checksums.ser
............此处省略1465个文件信息