单击EditText的TimePicker对话框

Question

我已经有一个DatePicker,当用户点击EditText字段时会弹出

eReminderDate.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                //To show current date in the datepicker
                Calendar mcurrentDate = Calendar.getInstance();
                int mYear = mcurrentDate.get(Calendar.YEAR);
                int mMonth = mcurrentDate.get(Calendar.MONTH);
                int mDay = mcurrentDate.get(Calendar.DAY_OF_MONTH);

                DatePickerDialog mDatePicker;
                mDatePicker = new DatePickerDialog(AddReminder.this, new OnDateSetListener() {
                    public void onDateSet(DatePicker datepicker, int selectedyear, int selectedmonth, int selectedday) {
                        // TODO Auto-generated method stub
                    /*      Your code   to get date and time    */
                        selectedmonth = selectedmonth + 1;
                        eReminderDate.setText("" + selectedday + "/" + selectedmonth + "/" + selectedyear);
                    }
                }, mYear, mMonth, mDay);
                mDatePicker.setTitle("Select Date");
                mDatePicker.show();
            }
        });

我试过以类似的方式做一个TimePicker但是无法让它工作.这是我尝试让它运作的尝试

 eReminderTime.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Calendar mcurrentTime = Calendar.getInstance();
                int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
                int minute = mcurrentTime.get(Calendar.MINUTE);
                TimePickerDialog mTimePicker;
                mTimePicker = new TimePickerDialog(AddReminder.this, new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
                        eReminderTime.setText( ""selectedHour + ":" + selectedMinute);
                    }
                }, hour, minute);
                mTimePicker.setTitle("Select Time");
                mTimePicker.show();

            }
        });

是不是可以这样做,就像我为DatePicker做的那样？

一旦使用此代码单击EditText字段,我甚至尝试弹出TimePicker.

      eReminderTime.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            showDialog(TIME_DIALOG_ID);
        }
    });

出于某种原因,当我进入Android Studio时,'showDialog'得分.

谁能给我提示我哪里出错？或者我只是要使用自定义DialogFragment？

Answer 1

eReminderTime.setText( "" + selectedHour + ":" + selectedMinute);

您缺少一个+介于两者之间""和选定的小时,setText方法只需要一个字符串,因此您需要连接所有部分(第一个引号可能是不必要的).

eReminderTime.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Calendar mcurrentTime = Calendar.getInstance();
            int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
            int minute = mcurrentTime.get(Calendar.MINUTE);
            TimePickerDialog mTimePicker;
            mTimePicker = new TimePickerDialog(AddReminder.this, new TimePickerDialog.OnTimeSetListener() {
                @Override
                public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
                    eReminderTime.setText( selectedHour + ":" + selectedMinute);
                }
            }, hour, minute, true);//Yes 24 hour time
            mTimePicker.setTitle("Select Time");
            mTimePicker.show();

        }
    });

这应该修复你的第二个错误,你没有提供最后一个参数. TimePickerDialog构造函数

Answer 2

为什么不以可重复使用的方式写？

创建SetTime类:

class SetTime implements OnFocusChangeListener, OnTimeSetListener {   

       private EditText editText;
       private Calendar myCalendar;

       public SetTime(EditText editText, Context ctx){
           this.editText = editText;
           this.editText.setOnFocusChangeListener(this);
           this.myCalendar = Calendar.getInstance();

       }

        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            // TODO Auto-generated method stub
            if(hasFocus){
                int hour = myCalendar.get(Calendar.HOUR_OF_DAY);
                int minute = myCalendar.get(Calendar.MINUTE);
                new TimePickerDialog(ctx, this, hour, minute, true).show();
            }
        }

        @Override
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            // TODO Auto-generated method stub
            this.editText.setText( hourOfDay + ":" + minute);
        }

    }

然后从onCreate函数调用它:

    EditText editTextFromTime = (EditText) findViewById(R.id.editTextFromTime);
    SetTime fromTime = new SetTime(editTextFromTime, this);

Answer 3

您可以在edittext的onclick监听器中使用以下代码

  TimePickerDialog timePickerDialog = new TimePickerDialog(MainActivity.this,
    new TimePickerDialog.OnTimeSetListener() {

        @Override
        public void onTimeSet(TimePicker view, int hourOfDay,
                              int minute) {

            tv_time.setText(hourOfDay + ":" + minute);
        }
    }, hour, minute, false);
     timePickerDialog.show();

您可以在Android timepicker示例中看到完整代码

Answer 4

我扩展了 @Sumoanand 的可重用解决方案，以在多次更改时间时支持焦点更改和单击侦听器。还更新选择器日历以记住上次选择的时间 + 格式 HH:mm

public class TimeSetter implements View.OnFocusChangeListener, TimePickerDialog.OnTimeSetListener, View.OnClickListener {

    private EditText mEditText;
    private Calendar mCalendar;
    private SimpleDateFormat mFormat;

    public TimeSetter(EditText editText){
       this.mEditText = editText;
       mEditText.setOnFocusChangeListener(this);
       mEditText.setOnClickListener(this);
    }

    @Override
    public void onFocusChange(View view, boolean hasFocus) {
        if (hasFocus){
            showPicker(view);
        }
    }

    @Override
    public void onClick(View view) {
        showPicker(view);
    }

    private void showPicker(View view) {
        if (mCalendar == null)
            mCalendar = Calendar.getInstance();

        int hour = mCalendar.get(Calendar.HOUR_OF_DAY);
        int minute = mCalendar.get(Calendar.MINUTE);

        new TimePickerDialog(view.getContext(), this, hour, minute, true).show();
    }

    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
        mCalendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
        mCalendar.set(Calendar.MINUTE, minute);

        if (mFormat == null)
            mFormat = new SimpleDateFormat("HH:mm", Locale.getDefault());

        this.mEditText.setText(mFormat.format(mCalendar.getTime()));
    }

}

onCreate 的用法：

EditText timeEditText = (EditText) rootView.findViewById(R.id.timeText);
new TimeSetter(timeEditText);