基于Android的手机备忘录软件设计

课程设计报告（本科）课程：嵌入式系统学号：姓名：班级：教师：时间：2013年5月3日至6月20日计算机科学与技术系6.程序运行结果与分析（可以加页）：1.列表展示主要功能把备忘录界面展示给用户，用户可以添加和删除备忘录信息，很大程度上方便了用户的操作。

运行结果2.备忘录维护用户可以很好的将需要或者不需要的备忘录信息进行增添或者删除运行结果：3.备忘录定时提醒这个功能可以很有效的提醒用户关闭备忘录，以免造成不必要的资源浪费。

运行结果：附录：源程序代码1. AlarmActivity.javapackage com.amaker.ch17.app;import android.app.Activity;import android.app.Notification;import android.app.NotificationManager;import android.content.Context;import .Uri;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;/*** @author 冯春礼* 提醒用户*/public class AlarmActivity extends Activity {public static final int ID = 1;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(yout.alarm);// 获得Button、TextView实例Button btn = (Button) findViewById(R.id.cancelButton01);TextView tv = (TextView)findViewById(R.id.msgTextView01);// 获得NotificationManager实例String service = Context.NOTIFICATION_SERVICE;final NotificationManager nm = (NotificationManager)getSystemService(service);// 实例化NotificationNotification n = new Notification();// 设置显示提示信息，该信息也会在状态栏显示String msg = getIntent().getStringExtra("msg");// 显示时间n.tickerText = msg;tv.setText(msg);// 设置声音提示n.sound = Uri.parse("file:///sdcard/fallbackring.ogg");// 发出通知nm.notify(ID, n);// 取消通知btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {nm.cancel(ID);finish();}});}}2. TaskDetailActivity.javapackage com.amaker.ch17.app;import java.util.Calendar;import android.app.AlarmManager;import android.app.AlertDialog;import android.app.DatePickerDialog;import android.app.Dialog;import android.app.ListActivity;import android.app.PendingIntent;import android.app.TimePickerDialog;import android.content.ContentUris;import android.content.ContentValues;import android.content.DialogInterface;import android.content.Intent;import .Uri;import android.os.Bundle;import youtInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.CheckedTextView;import android.widget.DatePicker;import android.widget.EditText;import android.widget.ListView;import android.widget.TextView;import android.widget.TimePicker;import android.widget.AdapterView.OnItemClickListener;import com.amaker.ch17.app.TaskList.Tasks;/**** @author 冯春礼* 备忘录详细信息类，该信息*/public class TaskDetailActivity extends ListActivity { // 备忘录信息列表private ListView listView = null;// 提醒日期private int mYear;private int mMonth;private int mDay;// 提醒时间private int mHour;private int mMinute;// 日期显示TextViewprivate TextView dateName, dateDesc;// 时间显示TextViewprivate TextView timeName, timeDesc;// 提醒内容TextViewprivate TextView contentName, contentDesc;// 是否开启提醒private int on_off = 0;// 是否声音警告private int alarm = 0;// 显示日期、时间对话框常量static final int DATE_DIALOG_ID = 0;static final int TIME_DIALOG_ID = 1;// 保存内容、日期、时间字符串private String content, date1, time1;// 备忘录IDprivate int id1;// 多选框private CheckedTextView ctv1, ctv2;// 访问布局实例private LayoutInflater li;// 初始化方法private void init(Intent intent) {Bundle b = intent.getBundleExtra("b");if (b != null) {id1 = b.getInt("id");content = b.getString("content");date1 = b.getString("date1");time1 = b.getString("time1");on_off = b.getInt("on_off");alarm = b.getInt("alarm");if (date1 != null && date1.length() > 0) {String[] strs = date1.split("/");mYear = Integer.parseInt(strs[0]);mMonth = Integer.parseInt(strs[1]);mDay = Integer.parseInt(strs[2]);}if (time1 != null && time1.length() > 0) {String[] strs = time1.split(":");mHour = Integer.parseInt(strs[0]);mMinute = Integer.parseInt(strs[1]);}}}@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);// 获得ListViewlistView = getListView();// 实例化LayoutInflaterli = getLayoutInflater();// 设置ListView AdapterlistView.setAdapter(new ViewAdapter());// 可多选listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);// 获得Calendar实例final Calendar c = Calendar.getInstance();// 获得当前日期、时间mYear = c.get(Calendar.YEAR);mMonth = c.get(Calendar.MONTH);mDay = c.get(Calendar.DAY_OF_MONTH);mHour = c.get(Calendar.HOUR_OF_DAY);mMinute = c.get(Calendar.MINUTE);// 响应列表单击事件listView.setOnItemClickListener(new OnItemClickListener() { @Overridepublic void onItemClick(AdapterView<?> av, View v, int position, long id) {switch (position) {// 设置是否开启提醒case 0:ctv1 = (CheckedTextView) v;if (ctv1.isChecked()) {on_off = 0;} else {on_off = 1;}break;// 设置提醒日期case 1:showDialog(DATE_DIALOG_ID);break;// 设置提醒时间case 2:showDialog(TIME_DIALOG_ID);break;// 设置提醒内容case 3:showDialog1("请输入内容：");break;// 设置是否开启语音提醒case 4:ctv2 = (CheckedTextView) v;if (ctv2.isChecked()) {alarm = 0;setAlarm(false);} else {alarm = 1;setAlarm(true);}break;default:break;}}}@Overrideprotected void onResume() {super.onResume();// 初始化列表init(getIntent());}// ListView Adatper，该类实现了列表的每一项通过自定义视图实现class ViewAdapter extends BaseAdapter {// 列表显示内容String[] strs = { "是否开启", "日期", "时间", "内容", "开启闹钟" };// 获得列表列数@Overridepublic int getCount() {return strs.length;}// 返回列表项@Overridepublic Object getItem(int position) {return position;}// 返回列表ID@Overridepublic long getItemId(int position) {return position;}// 获得当前列表项视图@Overridepublic View getView(int position, View convertView, ViewGroup parent) { View v = li.inflate(yout.item_row, null);switch (position) {// 是否开启该条备忘录case 0:ctv1 = (CheckedTextView) li.inflate(yout.simple_list_item_multiple_choice,null);ctv1.setText(strs[position]);if (on_off == 0) {ctv1.setChecked(false);} else {ctv1.setChecked(true);}return ctv1;// 提醒日期case 1:dateName = (TextView) v.findViewById();dateDesc = (TextView) v.findViewById(R.id.desc);dateName.setText(strs[position]);dateDesc.setText(mYear + "/" + mMonth + "/" + mDay);return v;// 提醒时间case 2:timeName = (TextView) v.findViewById();timeDesc = (TextView) v.findViewById(R.id.desc);timeName.setText(strs[position]);timeDesc.setText(mHour + ":" + mMinute);return v;// 提醒内容case 3:contentName = (TextView) v.findViewById();contentDesc = (TextView) v.findViewById(R.id.desc);contentName.setText(strs[position]);contentDesc.setText(content);return v;// 是否声音提示case 4:ctv2 = (CheckedTextView) li.inflate(yout.simple_list_item_multiple_choice,null);ctv2.setText(strs[position]);if (alarm == 0) {ctv2.setChecked(false);} else {ctv2.setChecked(true);}return ctv2;default:break;}return null;}}// 显示对话框@Overrideprotected Dialog onCreateDialog(int id) {switch (id) {// 显示日期对话框case DATE_DIALOG_ID:return new DatePickerDialog(this, mDateSetListener, mYear, mMonth,mDay);// 显示时间对话框case TIME_DIALOG_ID:return new TimePickerDialog(this, mTimeSetListener, mHour, mMinute,false);}return null;}// 设置通知提示private void setAlarm(boolean flag) {final String BC_ACTION = "com.amaker.ch17.TaskReceiver";// 获得AlarmManager实例final AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);// 实例化IntentIntent intent = new Intent();// 设置Intent action属性intent.setAction(BC_ACTION);intent.putExtra("msg", content);// 实例化PendingIntentfinal PendingIntent pi = PendingIntent.getBroadcast(getApplicationContext(), 0, intent, 0);// 获得系统时间final long time1 = System.currentTimeMillis();Calendar c = Calendar.getInstance();c.set(mYear, mMonth, mDay, mHour, mMinute);long time2 = c.getTimeInMillis();if (flag&&(time2-time1)>0&&on_off==1){am.set(AlarmManager.RTC_WAKEUP, time2, pi);}else{am.cancel(pi);}}/** 设置提示日期对话框private void showDialog1(String msg) {View v = li.inflate(yout.item_content, null);final EditText contentET = (EditText) v.findViewById(R.id.content);contentET.setText(content);new AlertDialog.Builder(this).setView(v).setMessage(msg).setCancelable( false).setPositiveButton("确定",new DialogInterface.OnClickListener() {public void onClick(DialogInterface dialog, int id) {content = contentET.getText().toString();contentDesc.setText(content);}}).show();}// 时间选择对话框private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {public void onTimeSet(TimePicker view, int hourOfDay, int minute) { mHour = hourOfDay;mMinute = minute;timeDesc.setText(mHour + ":" + mMinute);}};// 日期选择对话框private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() {public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {mYear = year;mMonth = monthOfYear;mDay = dayOfMonth;dateDesc.setText(mYear + "/" + mMonth + "/" + mDay);}};// 保存或修改备忘录信息protected void onPause() {super.onPause();saveOrUpdate();};// 保存或修改备忘录信息private void saveOrUpdate() {ContentV alues values = new ContentV alues();values.clear();values.put(Tasks.CONTENT, contentDesc.getText().toString());values.put(Tasks.DA TE1, dateDesc.getText().toString());values.put(Tasks.TIME1, timeDesc.getText().toString());values.put(Tasks.ON_OFF, ctv1.isChecked() ? 1 : 0);values.put(Tasks.ALARM, ctv2.isChecked() ? 1 : 0);// 修改if (id1 != 0) {Uri uri = ContentUris.withAppendedId(Tasks.CONTENT_URI, id1);getContentResolver().update(uri, values, null, null);// 保存} else {Uri uri = TaskList.Tasks.CONTENT_URI;getContentResolver().insert(uri, values);}}}3. TaskList.javapackage com.amaker.ch17.app;import .Uri;import android.provider.BaseColumns;/*** @author 冯春礼* 备忘录常量类*/public final class TaskList {// 授权常量public static final String AUTHORITY = "com.amaker.provider.TaskList";private TaskList() {}// 内部类public static final class Tasks implements BaseColumns {private Tasks() {}// 访问Uripublic static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/taskLists");public static final String CONTENT_TYPE = "vnd.android.cursor.dir/vnd.amaker.tasklist";public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.amaker.tasklist";// 默认排序常量public static final String DEFAULT_SORT_ORDER = "created DESC";// 表字段常量public static final String CONTENT = "content";public static final String CREATED= "created";public static final String DA TE1 = "date1";public static final String TIME1 = "time1";public static final String ON_OFF = "on_off";public static final String ALARM = "alarm";}}4.TaskListActivity.javapackage com.amaker.ch17.app;import android.app.ListActivity;import android.content.ContentUris;import android.content.Intent;import android.database.Cursor;import .Uri;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.AdapterView;import android.widget.ListView;import android.widget.SimpleCursorAdapter;import android.widget.AdapterView.OnItemClickListener;import com.amaker.ch17.app.TaskList.Tasks;/**** @author 冯春礼* 备忘录列表类，提供数据展示*/public class TaskListActivity extends ListActivity {// 菜单项常量private static final int NEW = 1;private static final int DEL = 2;// 查询列数组private static final String[] PROJECTION = new String[] {Tasks._ID, // 0Tasks.CONTENT, // 1Tasks.CREATED, // 2Tasks.ALARM, // 3Tasks.DA TE1, // 4Tasks.TIME1, // 5Tasks.ON_OFF // 6};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);// 获得Intentfinal Intent intent = getIntent();// 设置Uriif (intent.getData() == null) {intent.setData(Tasks.CONTENT_URI);}// 获得ListViewListView listView = getListView();// 查询所有备忘录信息Cursor cursor = managedQuery(getIntent().getData(), PROJECTION, null, null, Tasks.DEFAULT_SORT_ORDER);// 创建AdapterSimpleCursorAdapter adapter = new SimpleCursorAdapter(this,yout.simple_list_item_2, cursor,new String[] {Tasks._ID, Tasks.CONTENT },new int[] { android.R.id.text1,android.R.id.text2 });// 将备忘录信息显示到ListViewsetListAdapter(adapter);// 为ListView添加单击事件监听器listView.setOnItemClickListener(new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> av, View v, int position,long id) {// 通过ID查询备忘录信息Uri uri = ContentUris.withAppendedId(Tasks.CONTENT_URI, id);Cursor cursor = managedQuery(uri, PROJECTION, null,null, Tasks.DEFAULT_SORT_ORDER);if(cursor.moveToNext()){int id1 = cursor.getInt(0);String content = cursor.getString(1);String created = cursor.getString(2);int alarm = cursor.getInt(3);String date1 = cursor.getString(4);String time1 = cursor.getString(5);int on_off = cursor.getInt(6);Bundle b = new Bundle();b.putInt("id", id1);b.putString("content", content);b.putString("created", created);b.putInt("alarm", alarm);b.putString("date1", date1);b.putString("time1", time1);b.putInt("on_off", on_off);// 将备忘录信息添加到Intentintent.putExtra("b", b);// 启动备忘录详细信息Activityintent.setClass(TaskListActivity.this, TaskDetailActivity.class);startActivity(intent);}}});}// 创建选项菜单public boolean onCreateOptionsMenu(Menu menu) {menu.add(0, NEW, 0, "新建");menu.add(0, DEL, 0, "删除");return true;}// 现象菜单项单击方法public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) {case NEW:// 启动备忘录详细信息ActivityIntent intent = new Intent();intent.setClass(this, TaskDetailActivity.class);startActivity(intent);return true;case DEL:return true;}return false;}}5. TaskListProvider.javapackage com.amaker.ch17.app;import java.util.HashMap;import android.content.ContentProvider;import android.content.ContentUris;import android.content.ContentValues;import android.content.Context;import android.content.UriMatcher;import android.database.Cursor;import android.database.SQLException;import android.database.sqlite.SQLiteDatabase;import android.database.sqlite.SQLiteOpenHelper;import android.database.sqlite.SQLiteQueryBuilder;import .Uri;import android.text.TextUtils;import com.amaker.ch17.app.TaskList.Tasks;/*** @author 冯春礼* 提供数据维护方法*/public class TaskListProvider extends ContentProvider { // 数据库名称常量private static final String DATABASE_NAME = "task_list.db";// 数据库版本常量private static final int DATABASE_VERSION = 1;// 表名称常量private static final String TASK_LIST_TABLE_NAME = "taskLists";// 查询列集合private static HashMap<String, String> sTaskListProjectionMap;// 查询、更新条件private static final int TASKS = 1;private static final int TASK_ID = 2;// Uri工具类private static final UriMatcher sUriMatcher;// 数据库工具类实例private DatabaseHelper mOpenHelper;// 内部工具类，创建或打开数据库，创建或删除表private static class DatabaseHelper extends SQLiteOpenHelper {DatabaseHelper(Context context) {super(context, DA TABASE_NAME, null, DATABASE_VERSION);}// 创建表@Overridepublic void onCreate(SQLiteDatabase db) {db.execSQL("CREATE TABLE " + TASK_LIST_TABLE_NAME + " ("+ Tasks._ID + " INTEGER PRIMARY KEY,"+ Tasks.DATE1 + " TEXT,"+ Tasks.TIME1 + " TEXT,"+ Tasks.CONTENT + " TEXT,"+ Tasks.ON_OFF + " INTEGER,"+ Tasks.ALARM + " INTEGER,"+ Tasks.CREATED + " TEXT"+ ");");}// 删除表@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db.execSQL("DROP TABLE IF EXISTS taskLists");onCreate(db);}}// 创建或打开数据库@Overridepublic boolean onCreate() {mOpenHelper = new DatabaseHelper(getContext());return true;}// 查询@Overridepublic Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {SQLiteQueryBuilder qb = new SQLiteQueryBuilder();switch (sUriMatcher.match(uri)) {// 查询所有case TASKS:qb.setTables(TASK_LIST_TABLE_NAME);qb.setProjectionMap(sTaskListProjectionMap);break;// 根据ID查询case TASK_ID:qb.setTables(TASK_LIST_TABLE_NAME);qb.setProjectionMap(sTaskListProjectionMap);qb.appendWhere(Tasks._ID + "=" + uri.getPathSegments().get(1));break;default:throw new IllegalArgumentException("Uri错误！" + uri);}// 使用默认排序String orderBy;if (TextUtils.isEmpty(sortOrder)) {orderBy = TaskList.Tasks.DEFAULT_SORT_ORDER;} else {orderBy = sortOrder;}// 获得数据库实例SQLiteDatabase db = mOpenHelper.getReadableDatabase();// 返回游标集合Cursor c = qb.query(db, projection, selection, selectionArgs, null, null, orderBy);c.setNotificationUri(getContext().getContentResolver(), uri);return c;}// 获得类型@Overridepublic String getType(Uri uri) {switch (sUriMatcher.match(uri)) {case TASKS:return Tasks.CONTENT_TYPE;case TASK_ID:return Tasks.CONTENT_ITEM_TYPE;default:throw new IllegalArgumentException("错误的URI：" + uri);}}// 保存数据@Overridepublic Uri insert(Uri uri, ContentValues initialValues) {if (sUriMatcher.match(uri) != TASKS) {throw new IllegalArgumentException("错误的URI：" + uri);}ContentV alues values;if (initialValues != null) {values = new ContentV alues(initialValues);} else {values = new ContentV alues();}// 获得数据库实例SQLiteDatabase db = mOpenHelper.getWritableDatabase();// 保存数据返回行IDlong rowId = db.insert(TASK_LIST_TABLE_NAME, Tasks.CONTENT, values);if (rowId > 0) {Uri taskUri = ContentUris.withAppendedId(TaskList.Tasks.CONTENT_URI, rowId);getContext().getContentResolver().notifyChange(taskUri, null);return taskUri;}throw new SQLException("插入数据失败" + uri);}// 删除数据@Overridepublic int delete(Uri uri, String where, String[] whereArgs) {// 获得数据库实例SQLiteDatabase db = mOpenHelper.getWritableDatabase();int count;switch (sUriMatcher.match(uri)) {// 根据指定条件删除case TASKS:count = db.delete(TASK_LIST_TABLE_NAME, where, whereArgs);break;// 根据指定条件和ID删除case TASK_ID:String noteId = uri.getPathSegments().get(1);count = db.delete(TASK_LIST_TABLE_NAME, Tasks._ID + "=" + noteId+ (!TextUtils.isEmpty(where) ? " AND (" + where + ')' : ""), whereArgs);break;default:throw new IllegalArgumentException("错误的URI " + uri);}getContext().getContentResolver().notifyChange(uri, null);return count;}// 更新数据@Overridepublic int update(Uri uri, ContentV alues values, String where, String[] whereArgs) { // 获得数据库实例SQLiteDatabase db = mOpenHelper.getWritableDatabase();int count;switch (sUriMatcher.match(uri)) {// 根据指定条件更新case TASKS:count = db.update(TASK_LIST_TABLE_NAME, values, where, whereArgs);break;// 根据指定条件和ID更新case TASK_ID:String noteId = uri.getPathSegments().get(1);count = db.update(TASK_LIST_TABLE_NAME, values, Tasks._ID + "=" + noteId + (!TextUtils.isEmpty(where) ? " AND (" + where + ')' : ""), whereArgs);break;default:throw new IllegalArgumentException("错误的URI " + uri);}getContext().getContentResolver().notifyChange(uri, null);return count;}static {// Uri匹配工具类sUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);sUriMatcher.addURI(TaskList.AUTHORITY, "taskLists", TASKS);sUriMatcher.addURI(TaskList.AUTHORITY, "taskLists/#", TASK_ID);// 实例化查询列集合sTaskListProjectionMap = new HashMap<String, String>();// 添加查询列sTaskListProjectionMap.put(Tasks._ID, Tasks._ID);sTaskListProjectionMap.put(Tasks.CONTENT, Tasks.CONTENT);sTaskListProjectionMap.put(Tasks.CREATED, Tasks.CREATED);sTaskListProjectionMap.put(Tasks.ALARM, Tasks.ALARM);sTaskListProjectionMap.put(Tasks.DA TE1, Tasks.DATE1);sTaskListProjectionMap.put(Tasks.TIME1, Tasks.TIME1);sTaskListProjectionMap.put(Tasks.ON_OFF, Tasks.ON_OFF);}}6．TaskReceiver.javapackage com.amaker.ch17.app;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;/*** @author 冯春礼* 定时提醒广播*/public class TaskReceiver extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);intent.setClass(context, AlarmActivity.class);context.startActivity(intent);}}。