Java 必须按两次以删除第一项，并且复选框未被标记

我已经创建了一个应用程序，用户可以在其中存储他们想要的活动，并且当手机到达用户选择的时间时会生成一条警报消息。在这里，用户可以通过按下复选框来标记活动，这将从表中删除该活动。但是，当我标记第一个复选框时，我必须单击两次才能将其删除。此外即使我按下复选框，它们也不会被标记。请帮忙

public class ViewTask extends Activity {
protected TaskerDbHelper db;
List<Task> list;
MyAdapter adapt;
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);;
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
static final int DATE_DIALOG_ID = 0;
static final int TIME_DIALOG_ID = 1;
 private ScheduleClient scheduleClient;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_view_task);
     scheduleClient = new ScheduleClient(this);
        scheduleClient.doBindService();

    db = new TaskerDbHelper(this);

    list = db.getAllTasks();
    adapt = new MyAdapter(this, R.layout.list_inner_view, list);
    ListView listTask = (ListView) findViewById(R.id.listView1);
    listTask.setAdapter(adapt);
}

public void chooseDate(View view)
{
    showDialog(DATE_DIALOG_ID);
}

public void chooseTime(View view)
{
    showDialog(TIME_DIALOG_ID);
}

private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() {

    @Override
    public void onDateSet(DatePicker view, int yearSelected,
            int monthOfYear, int dayOfMonth) {
        year = yearSelected;
        month = monthOfYear;
        day = dayOfMonth;
    }

};

private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {

    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int min) {
        hour = hourOfDay;
        minute = min;
    }

};

protected Dialog onCreateDialog(int id) {
    switch (id) {
    case DATE_DIALOG_ID:
        return new DatePickerDialog(this, mDateSetListener, year, month,
                day);
    case TIME_DIALOG_ID:
        return new TimePickerDialog(this, mTimeSetListener, hour, minute,
                false);

    }
    return null;
}

public void addTaskNow(View v) {
    EditText t = (EditText) findViewById(R.id.editText1);
    String s = t.getText().toString();
    String s2 = year + "-" + month+1 + "-" + day + " " + hour + ":"
            + minute;
    System.out.println("Date is "+s2);
    if (s.equalsIgnoreCase("")) {
        Toast.makeText(this, "enter the task description first!!",
                Toast.LENGTH_LONG);
    } 
    else {
        Task task = new Task(s, 0,s2);
        db.addTask(task);
        Log.d("tasker", "data added");
        t.setText("");
        adapt.add(task);
        System.out.println("Task name is "+task.getTaskName().toString());
        c.set(year,month,day,hour,minute,0);
          scheduleClient.setAlarmForNotification(c,task.getTaskName().toString());
        adapt.notifyDataSetChanged();
    }

}

public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.activity_view_task, menu);
    return true;
}

private class MyAdapter extends ArrayAdapter<Task> {

    Context context;
    List<Task> taskList = new ArrayList<Task>();
    int layoutResourceId;

    public MyAdapter(Context context, int layoutResourceId,
            List<Task> objects) {
        super(context, layoutResourceId, objects);
        this.layoutResourceId = layoutResourceId;
        this.taskList = objects;
        this.context = context;
    }

    public View getView(int position, View convertView, ViewGroup parent) {

        CheckBox chk = null;
        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.list_inner_view,
                    parent, false);
            chk = (CheckBox) convertView.findViewById(R.id.chkStatus);
            convertView.setTag(chk);

            chk.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    CheckBox cb = (CheckBox) v;
                    Task changeTask = (Task) cb.getTag();
                    changeTask.setStatus(cb.isChecked() == true ? 1 : 0);
                    db.updateTask(changeTask);
                    db.delete(String.valueOf(changeTask.getId()));
                    Toast.makeText(
                            getApplicationContext(),
                            "Task completed " + cb.getText() + " is "
                                    + cb.isChecked(), Toast.LENGTH_LONG)
                            .show();
                    adapt.clear();
                    adapt.addAll(db.getAllTasks());
                    adapt.notifyDataSetChanged();
                }

            });
        } else {
            chk = (CheckBox) convertView.getTag();
        }
        Task current = taskList.get(position);
        chk.setText(current.getTaskName()+" - "+current.getDate());
        chk.setChecked(current.getStatus() == 1 ? true : false);
        chk.setTag(current);
        Log.d("listener", String.valueOf(current.getId()));
        return convertView;
    }

}

}

---

尝试

chk.setFocusableInTouchMode（false）

在设置onclicklistener之前或之后，否则第一次单击将仅聚焦复选框

public class TaskerDbHelper extends SQLiteOpenHelper {

private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME = "taskManagerTestt";
private static final String TABLE_TASKS = "tasks";
private static final String KEY_ID = "id";
private static final String KEY_TASKNAME = "taskName";
private static final String KEY_STATUS = "status";
private static final String KEY_DATE="date";

public TaskerDbHelper(Context context) {
    super(context, DATABASE_NAME, null, DATABASE_VERSION);
}

public void onCreate(SQLiteDatabase db) {

    String sql = "CREATE TABLE IF NOT EXISTS " + TABLE_TASKS + " ( "
            + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_TASKNAME
            + " TEXT, " + KEY_STATUS + " INTEGER, "+KEY_DATE+" TEXT )";
    db.execSQL(sql);

//  db.close();
}

public void onUpgrade(SQLiteDatabase db, int oldV, int newV) {
    db.execSQL("DROP TABLE IF EXISTS " + TABLE_TASKS);
    onCreate(db);
}

public void addTask(Task task) {
    SQLiteDatabase db = this.getWritableDatabase();

    ContentValues values = new ContentValues();
    values.put(KEY_TASKNAME, task.getTaskName()); 
    values.put(KEY_STATUS, task.getStatus());
    values.put(KEY_DATE, task.getDate().toString());
    db.insert(TABLE_TASKS, null, values);
    db.close(); // Closing database connection
}

public List<Task> getAllTasks() {
    List<Task> taskList = new ArrayList<Task>();
    String selectQuery = "SELECT  * FROM " + TABLE_TASKS;

    SQLiteDatabase db = this.getWritableDatabase();
    Cursor cursor = db.rawQuery(selectQuery, null);
    if (cursor.moveToFirst()) {
        do {
            Task task = new Task();
            task.setId(cursor.getInt(0));
            task.setTaskName(cursor.getString(1));
            task.setStatus(cursor.getInt(2));
            task.setDate(cursor.getString(3));
            taskList.add(task);
        } while (cursor.moveToNext());
    }
    return taskList;
}

public void updateTask(Task task) {
    // updating row
    SQLiteDatabase db = this.getWritableDatabase();
    ContentValues values = new ContentValues();
    values.put(KEY_TASKNAME, task.getTaskName());
    values.put(KEY_STATUS, task.getStatus());
    values.put(KEY_DATE, task.getDate());
    db.update(TABLE_TASKS, values, KEY_ID + " = ?",new String[] {String.valueOf(task.getId())});
    db.close();
}

public void delete(String id)
{
    SQLiteDatabase db = this.getWritableDatabase();
    db.delete(TABLE_TASKS,  KEY_ID + " = ?",new String[] {id});
}

public ArrayList getTaskForTheDay(String date)
{
    String query="SELECT * FROM "+TABLE_TASKS+" WHERE "+KEY_DATE+" = "+"'"+date+"'";
    SQLiteDatabase db = this.getWritableDatabase();
    Cursor cursor = db.rawQuery(query, null);
    ArrayList tasks=new ArrayList();
    int count=0;
    // looping through all rows and adding to list
    if (cursor.moveToFirst()) {
        do {
            System.out.println("Came inside");
            Task task = new Task();
            task.setId(cursor.getInt(0));
            task.setTaskName(cursor.getString(1));
            tasks.add(task.getTaskName().toString());
            System.out.println("Task to notify is "+tasks.get(count));
            count++;
        } while (cursor.moveToNext());
    }

    return tasks;
}

}

public class Task {
private String taskName;
private int status;
private int id;
private String date;

public Task()
{
    this.taskName=null;
    this.status=0;
}
public Task(String taskName, int status,String date) {
    super();
    this.taskName = taskName;
    this.status = status;
    this.date=date;
}

public int getId() {
    return id;
}
public void setId(int id) {
    this.id = id;
}
public String getTaskName() {
    return taskName;
}
public void setTaskName(String taskName) {
    this.taskName = taskName;
}
public int getStatus() {
    return status;
}
public void setStatus(int status) {
    this.status = status;
}

public String getDate()
{
    return date;
}

public void setDate(String date)
{
    this.date=date;
}

}