如何获得的OnClick在DatePickerDialog.OnDateSetListener？ [英] How to get OnClick in DatePickerDialog.OnDateSetListener?

问题描述

我使用下面的方法来弹出的对话框中挑选日期。

I am using the following method to pop up the dialog to pick the date.

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

            public void onDateSet(DatePicker view, int year, 
                                  int monthOfYear, int dayOfMonth) {
                dobYear = year;
                dobMonth = monthOfYear;
                dobDay = dayOfMonth;
                if(isEighteenYearOld()){
                   //display the current date
                    dateDisplay();
                } else{
                   Toast.makeText(mContext, "You must be 18 year old", Toast.LENGTH_SHORT).show();
                }  
            } 

        };

我知道onDateSet我们就可以得到选定的日期。但我想的是，如果选择的日期是18岁以下，我需要提醒用户。我曾尝试上面code，但它关闭对话框，然后回到了该活动。

I know that onDateSet we can get the selected date. But what i am trying is if the date selected is younger than 18 years i need to alert the user. I have tried above code but it close the dialog and gone back to the activity.

我想留在对话框中，直到用户选择其为18岁old.I我不知道如何获得onclick事件在对话框中的日期？

I want to stay in the dialog until user selects the date which is 18 years old.I am not sure how to get the onclick event in the dialog?

推荐答案

日期选取器对话框中使用是德precate因此，我建议你不要使用。

Date Picker Dialog You are using is Deprecate So I recommend you to don't use that..

您可以通过两种方式实现的日期选择器（据我所知） 1.使用DialogFragment 2.使用AlertDialog

You can implement the Date picker in two ways(that I know) 1. Using DialogFragment 2. Using AlertDialog

第一：

public class MainActivity extends FragmentActivity {
    EditText text;
    Button b;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        b=(Button)findViewById(R.id.button1);
        text=(EditText)findViewById(R.id.editText1);
        b.setOnClickListener(new View.OnClickListener() {
            public void onClick(View arg0) {
                DateDialogFragment datepicker=new DateDialogFragment();
                datepicker.show(getSupportFragmentManager(), "showDate");
            }
        });
    }

    public class DateDialogFragment extends DialogFragment  implements DatePickerDialog.OnDateSetListener{

        public DateDialogFragment()
        {
        }
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            Calendar cal=Calendar.getInstance();
            int year=cal.get(Calendar.YEAR);
            int month=cal.get(Calendar.MONTH);
            int day=cal.get(Calendar.DAY_OF_MONTH);
            return new DatePickerDialog(getActivity(), this, year, month, day);
        }
        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
            showSetDate(year,monthOfYear,dayOfMonth);
        }

        }

    public void showSetDate(int year,int month,int day) {
    text.setText(year+"/+"+month+"/"+day);
    }
}

选中此sampel并实现同你的活动。

Check this sampel and implement the same in your Activity.

使用警报对话框： 使用第二个是pretty的简单

Using Alert Dialog: Using the second one is pretty simple

在您的RES /布局文件夹中创建布局，并将DatePicker的布局

Create layout in your res/layout folder and place DatePicker in the layout

 LayoutInflater  inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View view = (View) inflater.inflate(R.layout.yourlayout, null);
DatePicker picker=(DatePicker)view.findViewById(R.id.datepicker);

  AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
 builder.setView(view).
        builder.setMessage(R.string.dialog_fire_missiles)
               .setPositiveButton(R.string.fire, new DialogInterface.OnClickListener() {
                   public void onClick(DialogInterface dialog, int id) {
                       // FIRE ZE MISSILES!
                   }
               })
               .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
                   public void onClick(DialogInterface dialog, int id) {
                       // User cancelled the dialog
                   }
               });
        // Create the AlertDialog object and return it
        return builder.create();

这篇关于如何获得的OnClick在DatePickerDialog.OnDateSetListener？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！