Question

我正在尝试制作类似提醒应用的内容。我想允许用户选择现在不是的日期和时间（至少从现在起5分钟），我还想禁止用户选择距离太远的日期 - 例如30天。我创建了datePicker和timePicker，使它们在按钮点击时弹出，但找不到设置最小值和最大值的方法。

private void galleryAddPic() 
{
    Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
    File file;

    try
    {
        file = new File(mCurrentImagePath);
        Uri contentUri = Uri.fromFile(file);
        mediaScanIntent.setData(contentUri);
        this.sendBroadcast(mediaScanIntent);
    }catch(Exception e) {
        Toast.makeText(getApplicationContext(), e.toString(),
                Toast.LENGTH_LONG).show();
    }
}

Answer 1

try this:

 btnDate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                final DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {

                    }
                };

                Calendar c = Calendar.getInstance();
                int mYear = c.get(Calendar.YEAR);
                int mMonth = c.get(Calendar.MONTH);
                int mDay = c.get(Calendar.DAY_OF_MONTH);


                final DatePickerDialog datePickerDialog = new DatePickerDialog(
                        Main23Activity.this, datePickerListener,
                        mYear, mMonth, mDay);
                DatePicker datePicker = datePickerDialog.getDatePicker();

                c.add(Calendar.MONTH, +1);
                long oneMonthAhead = c.getTimeInMillis();
                datePicker.setMaxDate(oneMonthAhead);
                datePicker.setMinDate(System.currentTimeMillis() - 1000);
                datePickerDialog.show();

            }
        });

 btnTime.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                TimePickerDialog.OnTimeSetListener timePickerListener = new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker view, int hour, int minute) {

                    }
                };
                Calendar c = Calendar.getInstance();

                final TimePickerDialog timePickerDialog = new TimePickerDialog(Main23Activity.this,timePickerListener,
                        c.get(Calendar.HOUR_OF_DAY),c.get(Calendar.MINUTE)+5,false);
                timePickerDialog.show();

            }
        });

您需要检查用户是否选择了今天的日期，但时间是否小于当前时间条件。

Answer 2

对于DataOicker试试这个

public class MainActivity extends Activity {

    TextView txtDatePicker;
    Calendar cal,cal1;
    long maxDate;
    Date date;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        cal = Calendar.getInstance();
        cal1 = Calendar.getInstance();

        txtDatePicker = (TextView) findViewById(R.id.txtDatePicker);
        txtDatePicker.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                DatePickerDialog dialog = new DatePickerDialog(MainActivity.this, new OnDateSetListener() {

                    @Override
                    public void onDateSet(DatePicker arg0, int arg1, int arg2, int arg3) {
                        // TODO Auto-generated method stub
                        Toast.makeText(MainActivity.this, ""+arg1+"/"+(arg2+1)+"/"+arg3, Toast.LENGTH_SHORT).show();
                    }
            }, cal.YEAR, cal.MONTH, cal.DAY_OF_MONTH);
            dialog.getDatePicker().setMinDate(System.currentTimeMillis());
            cal1.add(Calendar.YEAR, 5);
            dialog.getDatePicker().setMaxDate(cal1.getTimeInMillis());
            dialog.show();
        }
    });
  }
}

对于TimePicker，请尝试此exampel

Answer 3

我合并了日期和时间选择器，并为timePicker添加了一个条件。

    public class TestActivity extends Activity {

        private Button mPickDate;
        private TextView mDateDisplay;
        private TextView mTimeDisplay;

        final Calendar c = Calendar.getInstance();
        private int mYear = c.get(Calendar.YEAR);
        private int mMonth = c.get(Calendar.MONTH);
        private int mDay = c.get(Calendar.DAY_OF_MONTH);
        private int mHour = c.get(Calendar.HOUR_OF_DAY);
        private int mMinute = c.get(Calendar.MINUTE);

        static final int TIME_DIALOG_ID = 1;
        static final int DATE_DIALOG_ID = 0;

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_test);
            });

            mDateDisplay = (TextView) findViewById(R.id.dateTextView);
            mPickDate = (Button) findViewById(R.id.datepicker);
            mTimeDisplay = (TextView) findViewById(R.id.timeTextView);

            mPickDate.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
            showDialog(DATE_DIALOG_ID);
        }
    });

    });

    mPickDate.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            showDialog(DATE_DIALOG_ID);
        }
    });

}

// Update date and time
private void updateDate() {
    mDateDisplay.setText(
            new StringBuilder()
                    .append(mDay).append("/")
                    .append(mMonth + 1).append("/")
                    .append(mYear).append(" "));
    showDialog(TIME_DIALOG_ID);
}

public void updateTime() {
    mTimeDisplay.setText(
            new StringBuilder()
                    .append(pad(mHour)).append(":")
                    .append(pad(mMinute)));
}

private static String pad(int c) {
    if (c >= 10)
        return String.valueOf(c);
    else
        return "0" + String.valueOf(c);
}

// Generate DatePickerDialog and TimePickerDialog
private DatePickerDialog.OnDateSetListener mDateSetListener =
        new DatePickerDialog.OnDateSetListener() {

            public void onDateSet(DatePicker view, int year,
                                  int monthOfYear, int dayOfMonth) {
                mYear = year;
                mMonth = monthOfYear;
                mDay = dayOfMonth;
                updateDate();
            }
        };

private TimePickerDialog.OnTimeSetListener mTimeSetListener =
        new TimePickerDialog.OnTimeSetListener() {
            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                mHour = hourOfDay;
                mMinute = minute;

                Calendar c2 = Calendar.getInstance();

                if (mYear == c2.get(Calendar.YEAR)
                        && mMonth == c2.get(Calendar.MONTH)
                        && mDay == c2.get(Calendar.DAY_OF_MONTH)
                        && (mHour < c2.get(Calendar.HOUR_OF_DAY) || (mHour == c2.get(Calendar.HOUR_OF_DAY) && mMinute <= (c2.get(Calendar.MINUTE)+10))
                    )
                ) {
                    Toast.makeText(TestActivity.this, "Set time at least 10 minutes from now", Toast.LENGTH_LONG).show();
                } else {
                    updateTime();
                }

            }
        };

@Override
protected Dialog onCreateDialog(int id) {
    switch (id) {
        case DATE_DIALOG_ID:
            DatePickerDialog datePickerDialog = new DatePickerDialog(this,
                    mDateSetListener,
                    mYear, mMonth, mDay);
            c.add(Calendar.MONTH, +1);
            long oneMonthAhead = c.getTimeInMillis();
            datePickerDialog.getDatePicker().setMaxDate(oneMonthAhead);
            datePickerDialog.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
            return datePickerDialog;

        case TIME_DIALOG_ID:
            TimePickerDialog timePickerDialog =
                    new TimePickerDialog(this,
                            mTimeSetListener, mHour, mMinute, false);

            return timePickerDialog;
    }
    return null;}
}

Datepicker和timepicker - 设置最大值和最小值

3 个答案: