Question

我是Android编程新手，我使用的是使用DialogFragment创建的基本Datepicker。我的DatePicker在点击等方面显示正常，但问题是它也显示了日历视图。我不想要这个。我一直在寻找一天的解决方案，我现在不愿意使用自定义Datepickers，因为我想先熟悉基础知识。

我还阅读了诸如

之类的建议

yourDatepicker.setCalendarViewShown(false);

或在XML中将其设置为false。但是我的DatePicker来自DialogFragment，那么如何访问这个日期选择器呢？如何设置其最终视图？我不想在源代码中进行更改，因为我仍在学习绳索。

我的日期选择代码：

public class DueDatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
            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);
            return new DatePickerDialog(getActivity(), this, year, month, day);
    }

    public void onDateSet(DatePicker view, int year, int month, int day){    
        // Code to set Due Date TextField to the selected date.
        TextView reminderText = (TextView)getActivity().findViewById(R.id.addTaskFormDueDateHolder);

        String dueDateStr = year + "-" + month + "-" + day;
        reminderText.setText(dueDateStr);
    }
}

Answer 1

我使用了Datepicker Dialog Fragment，在对话框中显示日期选择器。

这是我的完整代码

MainActivity.java

package com.example.testmydrag;

import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.DatePicker;
import android.support.v4.app.FragmentActivity;
import android.app.Dialog;
import android.app.DatePickerDialog;
import android.support.v4.app.DialogFragment;

import java.util.Calendar;

public class MainActivity extends FragmentActivity {

EditText mEdit;
    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    public void selectDate(View view) {

        DialogFragment newFragment = new SelectDateFragment();
        newFragment.show(getSupportFragmentManager(), "DatePicker");

    }

    public void setTheDate(int year, int month, int day) {

        mEdit = (EditText)findViewById(R.id.Text);
        mEdit.setText(month+"/"+day+"/"+year);
    }
    /*
     * Date Picker Dialog
     */
    public class SelectDateFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {

            final Calendar c = Calendar.getInstance();
            int yy = c.get(Calendar.YEAR);
            int mm = c.get(Calendar.MONTH);
            int dd = c.get(Calendar.DAY_OF_MONTH);

            DatePickerDialog dialog = new DatePickerDialog(getActivity(),this,c.YEAR, c.MONTH, c.DATE);

            /*Calendar View if you want to Remove Set it to False*/
            dialog.getDatePicker().setCalendarViewShown(true);

            /*Spinner View if you want to Show Set it to True*/
            dialog.getDatePicker().setSpinnersShown(false);

            dialog.setTitle("Pick a date");
            return dialog;
        }
        public void onDateSet(DatePicker view, int yy, int mm, int dd) {

            setTheDate(yy, mm+1, dd);
        }
    }

}

main.xml中

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <EditText android:text="@+string/date_text" 
        android:id="@+id/Text" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" />
    <Button 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:text="@+string/pick_date" 
        android:onClick="selectDate" />

</LinearLayout>

Answer 2

我找到了一个临时解决方案，但我并不完全满意。您需要最低版本的SDK版本11。

基本上我在DueDatePickerFragment中提到的onAcreateDialog函数中添加了对getDatePicker（）的调用，然后更改了它的设置。我不明白为什么我需要这样做，以及为什么它在我的模拟器中显得如此错误。似乎没有其他人遇到这个问题。任何解释都将受到高度赞赏。这是代码：

@Override
public Dialog onCreateDialog(Bundle savedInstanceState){
    Log.i("DUEDATEPICKERDIALOG", "Inside onCreateDIALOG");
    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);
    DatePickerDialog datePickerDialogObj = new DatePickerDialog(getActivity(), this, year, month, day);

    DatePicker dueDatePicker = datePickerDialogObj.getDatePicker();
    float scaleVal = (float) 0.6;
    dueDatePicker.setScaleX(scaleVal);
    dueDatePicker.setScaleY(scaleVal);
    dueDatePicker.setCalendarViewShown(false);

    return datePickerDialogObj;
}

希望这有助于某人。

使用DialogFragment创建的Datepicker也显示日历

2 个答案: