Java 返回已完成和挂起任务的计数
我正在SQlite数据库中保存任务。这些任务的状态为 任务表有一个状态列,其中0表示挂起的任务,1表示已完成的任务 为此,我创建了一个查询,以获取与任务状态相关的已完成和挂起的任务 问题是我没有得到正确的任务计数。如果有一个任务的状态为pending,即0,那么对于已完成和挂起的查询,它也会返回1 我已经创建了一个任务助手,并创建了两个不同的查询来获取任务数。稍后,我将此计数添加到MPAndroidchart条目中 编辑:任务表帮助器: 公共类TaskTableHelper扩展了SQLiteOpenHelper{Java 返回已完成和挂起任务的计数,java,android,database,sqlite,Java,Android,Database,Sqlite,我正在SQlite数据库中保存任务。这些任务的状态为 任务表有一个状态列,其中0表示挂起的任务,1表示已完成的任务 为此,我创建了一个查询,以获取与任务状态相关的已完成和挂起的任务 问题是我没有得到正确的任务计数。如果有一个任务的状态为pending,即0,那么对于已完成和挂起的查询,它也会返回1 我已经创建了一个任务助手,并创建了两个不同的查询来获取任务数。稍后,我将此计数添加到MPAndroidchart条目中 编辑:任务表帮助器: 公共类TaskTableHelper扩展了SQLiteOp
private static final String TASK_TABLE = "taskTable";
private static final String KEY_TASK_TITLE = "taskTitle";
private static final String KEY_TASK_ID = "taskId";
private static final String KEY_TASK_ALERT_DATE = "taskAlertDate";
private static final String KEY_TASK_ALERT_TIME = "taskAlertTime";
private static final String KEY_DUE_DATE = "dueDate";
private static final String KEY_DUE_TIME = "dueTime";
private static final String KEY_TASK_LIST ="taskList";
private static final String KEY_TASK_STATUS = "taskStatus";
private static final String KEY_TASK_PRIORITY = "taskPriority";
private static int count=0;
public TaskTableHelper(Context context) {
super(context, Constants.DATABASE_NAME, null, Constants.DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TASK_TABLE);
// createTable(db);
// onCreate(db);
}
public void addTask(Task task) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_TASK_TITLE, task.getTitle());
values.put(KEY_TASK_PRIORITY, task.getTaskPriority());
values.put(KEY_TASK_ALERT_DATE, task.getAlertDate());
values.put(KEY_TASK_ALERT_TIME, task.getAlertTime());
values.put(KEY_DUE_TIME, task.getDueTime());
values.put(KEY_DUE_DATE, task.getDueDate());
values.put(KEY_TASK_LIST, task.getList());
values.put(KEY_TASK_STATUS, task.getStatus());
db.insert(TASK_TABLE, null, values);
db.close();
}
public Task getTask(int id) {
SQLiteDatabase db = this.getReadableDatabase();
Task task = new Task();
Cursor cursor = db.query(TASK_TABLE, new String[]{KEY_TASK_ID,
KEY_TASK_TITLE, KEY_TASK_PRIORITY, KEY_TASK_ALERT_DATE,KEY_TASK_ALERT_TIME, KEY_DUE_DATE, KEY_DUE_TIME,
KEY_TASK_LIST,KEY_TASK_STATUS}, KEY_TASK_ID + "=?",
new String[]{String.valueOf(id)}, null, null, null, null);
//cursor.moveToFirst();
if( cursor != null && cursor.moveToFirst() ) {
task = new Task(Integer.parseInt(cursor.getString(0)),
cursor.getString(1), Integer.parseInt(cursor.getString(2)),cursor.getString(3),
cursor.getString(4), cursor.getString(5), cursor.getString(6),Integer.parseInt(cursor.getString(7)),
Integer.parseInt(cursor.getString(8)));
}
return task;
}
public ArrayList<Task> getAllTask() {
ArrayList<Task> conList = new ArrayList<Task>();
String selectQuery = "SELECT * FROM " + TASK_TABLE;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
if (cursor.moveToFirst()) {
do {
Task task = new Task();
task.setId(Integer.parseInt(cursor.getString(0)));
task.setTitle(cursor.getString(1));
task.setTaskPriority(Integer.parseInt(cursor.getString(2)));
task.setAlertDate(cursor.getString(3));
task.setAlertTime(cursor.getString(4));
task.setDueDate(cursor.getString(5));
task.setDueTime(cursor.getString(6));
task.setList(Integer.parseInt(cursor.getString(7)));
task.setStatus(Integer.parseInt(cursor.getString(8)));
conList.add(task);
} while (cursor.moveToNext());
}
return conList;
}
public ArrayList<Task> getAllTask(int listId) {
ArrayList<Task> conList = new ArrayList<Task>();
String selectQuery = "SELECT * FROM " + TASK_TABLE + " WHERE " + KEY_TASK_LIST + " == " + listId;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
if (cursor.moveToFirst()) {
do {
Task task = new Task();
task.setId(Integer.parseInt(cursor.getString(0)));
task.setTitle(cursor.getString(1));
task.setTaskPriority(Integer.parseInt(cursor.getString(2)));
task.setAlertDate(cursor.getString(3));
task.setAlertTime(cursor.getString(4));
task.setDueDate(cursor.getString(5));
task.setDueTime(cursor.getString(6));
task.setList(Integer.parseInt(cursor.getString(7)));
task.setStatus(Integer.parseInt(cursor.getString(8)));
conList.add(task);
} while (cursor.moveToNext());
}
return conList;
}
public int getCompletedTasks() {
ArrayList<Task> conList = new ArrayList<Task>();
String selectQuery = "SELECT * FROM " + TASK_TABLE + " WHERE " + KEY_TASK_STATUS + " = " + " 1 ";
SQLiteDatabase db = this.getWritableDatabase();
Cursor mCount= db.rawQuery(selectQuery,null);
if (mCount.moveToFirst()) {
do {
Task task = new Task();
count = mCount.getInt(0);
} while (mCount.moveToNext());
}
Log.d("query",selectQuery);
Log.d("count",String.valueOf(count));
mCount.close();
return count;
}
public int getPendingTasks() {
ArrayList<Task> conList = new ArrayList<Task>();
String selectQuery = "SELECT * FROM " + TASK_TABLE + " WHERE " + KEY_TASK_STATUS + " = " + " 0 ";
SQLiteDatabase db = this.getWritableDatabase();
Cursor mCount= db.rawQuery(selectQuery,null);
if (mCount.moveToFirst()) {
do {
Task task = new Task();
count = mCount.getInt(0);
} while (mCount.moveToNext());
}
Log.d("query",selectQuery);
Log.d("count",String.valueOf(count));
mCount.close();
return count;
}
private static final String TASK_TABLE=“taskTable”;
私有静态最终字符串键\u TASK\u TITLE=“tasktTitle”;
私有静态最终字符串密钥\u TASK\u ID=“taskId”;
私有静态最终字符串键\u任务\u警报\u日期=“taskAlertDate”;
私有静态最终字符串键\u TASK\u ALERT\u TIME=“taskAlertTime”;
私有静态最终字符串密钥\u DUE\u DATE=“dueDate”;
私有静态最终字符串密钥\u DUE\u TIME=“dueTime”;
私有静态最终字符串键\u TASK\u LIST=“taskList”;
私有静态最终字符串键\u TASK\u STATUS=“taskStatus”;
私有静态最终字符串键\u TASK\u PRIORITY=“taskPriority”;
私有静态整数计数=0;
公共TaskTableHelper(上下文){
super(context,Constants.DATABASE\u NAME,null,Constants.DATABASE\u VERSION);
}
@凌驾
public void onCreate(SQLiteDatabase db){
}
//升级数据库
@凌驾
public void onUpgrade(SQLiteDatabase db,int-oldVersion,int-newVersion){
db.execSQL(“如果存在删除表”+任务表);
//createTable(db);
//onCreate(db);
}
公共无效添加任务(任务任务){
SQLiteDatabase db=this.getWritableDatabase();
ContentValues=新的ContentValues();
value.put(KEY\u TASK\u TITLE,TASK.getTitle());
value.put(KEY\u TASK\u PRIORITY,TASK.getTaskPriority());
value.put(KEY_TASK_ALERT_DATE,TASK.getAlertDate());
value.put(KEY\u TASK\u ALERT\u TIME,TASK.getAlertTime());
value.put(KEY\u DUE\u TIME,task.getDueTime());
value.put(KEY\u DUE\u DATE,task.getDueDate());
value.put(KEY_TASK_LIST,TASK.getList());
value.put(KEY_TASK_STATUS,TASK.getStatus());
插入(任务表,空,值);
db.close();
}
公共任务getTask(int-id){
SQLiteDatabase db=this.getReadableDatabase();
任务=新任务();
Cursor Cursor=db.query(TASK_TABLE,新字符串[]{KEY_TASK_ID,
密钥任务标题、密钥任务优先级、密钥任务警报日期、密钥任务警报时间、密钥到期日期、密钥到期时间、,
密钥任务列表,密钥任务状态},密钥任务ID+“=?”,
新字符串[]{String.valueOf(id)},null,null,null,null);
//cursor.moveToFirst();
if(cursor!=null&&cursor.moveToFirst()){
任务=新任务(Integer.parseInt(cursor.getString(0)),
cursor.getString(1)、Integer.parseInt(cursor.getString(2))、cursor.getString(3),
cursor.getString(4)、cursor.getString(5)、cursor.getString(6)、Integer.parseInt(cursor.getString(7)),
Integer.parseInt(cursor.getString(8));
}
返回任务;
}
公共ArrayList getAllTask(){
ArrayList conList=新的ArrayList();
String selectQuery=“SELECT*FROM”+任务\表;
SQLiteDatabase db=this.getWritableDatabase();
Cursor Cursor=db.rawQuery(selectQuery,null);
if(cursor.moveToFirst()){
做{
任务=新任务();
setId(Integer.parseInt(cursor.getString(0));
task.setTitle(cursor.getString(1));
setTaskPriority(Integer.parseInt(cursor.getString(2));
task.setAlertDate(cursor.getString(3));
task.setAlertTime(cursor.getString(4));
task.setDueDate(cursor.getString(5));
task.setDueTime(cursor.getString(6));
setList(Integer.parseInt(cursor.getString(7));
task.setStatus(Integer.parseInt(cursor.getString(8));
conList.add(任务);
}while(cursor.moveToNext());
}
返回列表;
}
公共ArrayList getAllTask(int listId){
ArrayList conList=新的ArrayList();
String selectQuery=“SELECT*FROM”+任务表+”,其中“+键任务列表+”==“+列表ID;
SQLiteDatabase db=this.getWritableDatabase();
Cursor Cursor=db.rawQuery(selectQuery,null);
if(cursor.moveToFirst()){
做{
任务=新任务();
setId(Integer.parseInt(cursor.getString(0));
task.setTitle(cursor.getString(1));
setTaskPriority(Integer.parseInt(cursor.getString(2));
task.setAlertDate(cursor.getString(3));
task.setAlertTime(cursor.getString(4));
task.setDueDate(cursor.getString(5));
task.setDueTime(cursor.getString(6));
setList(Integer.parseInt(cursor.getString(7));
task.setStatus(Integer.parseInt(cursor.getString(8));
conList.add(任务);
}while(cursor.moveToNext());
}
返回列表;
}
public int getCompletedTasks(){
ArrayList conList=新的ArrayList();
String selectQuery=“SELECT*FROM”+TASK\u TABLE+,其中“+KEY\u TASK\u STATUS+”=“+”1”;
SQLiteDatabase db=this.getWritableDatabase();
游标mCount=db.rawQuery(selectQuery,null);
if(mCount.moveToFirst()){
做{
任务=新任务();
count=mCount.getInt(0);
}while(mCount.moveToNext());
}
Log.d(“查询”,选择查询);
Log.d(“count”,String.valueOf(count));
mCount.close();
返回计数;
}
public int getPendingTasks(){
ArrayList conList=新的ArrayList();
String selectQuery=“SELECT*FROM”+TASK\u TABLE+,其中“+KEY\u TASK\u STATUS+”=“+”0”;
SQLiteDatabase db=this.getWritableDatabase();
游标mCount=db.rawQuery(选择qu
private void setGraph() {
mBarChart = (HorizontalBarChart) findViewById(R.id.chart);
mBarChart.setScaleEnabled(false);
ArrayList<BarDataSet> dataSets = null;
ArrayList<Task> completedTasksList = new ArrayList<>();
ArrayList<Task> pendingTasksList = new ArrayList<>();
ArrayList<Integer> completedTask = new ArrayList<>();
ArrayList<BarEntry> taskEntries = new ArrayList<>();
int pendingTasks = mDb.getPendingTasks();
int completedTasks = mDb.getCompletedTasks();
taskEntries.add(new BarEntry(completedTasks,1));
taskEntries.add(new BarEntry(pendingTasks,0));
mBarChart.animateXY(2000, 2000);
ArrayList<String> xAxis = new ArrayList<>();
xAxis.add("Pending");
xAxis.add("Completed");
BarDataSet completed = new BarDataSet(taskEntries, "Entries");
}
count = mCount.getInt(0);
public long getCompletedTasks() {
SQLiteDatabase db = getWritableDatabase();
long count = -1;
try {
SQLiteStatement statement = db.compileStatement(
"select count(*) from table_name where status = 1");
count = statement.simpleQueryForLong();
} catch (SQLException e) {
e.printStackTrace();
} finally {
if (statement != null) {
statement.close();
}
}
return count;
}