我想显示日期选择器弹出窗口。我找到了一些例子,但我没有得到正确的。我有一个edittext,我希望当我点击edittext时,datepicker对话框应该弹出,设置日期后,日期应该显示在edittext在dd/mm/yyyy格式。请为我提供示例代码或良好的链接。


当前回答

这在2020年1月对我有效

XML部分:

  <EditText
            android:id="@+id/etDOB"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:clickable="true"
            android:editable="false"
            android:ems="10"
            android:hint="Enter Your Date of Birth" />

Java的部分:

         final Calendar myCalendar = Calendar.getInstance();

         userDOBView  = (EditText)findViewById(R.id.etDOB);


    final DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener(){
      @Override
      public void onDateSet(DatePicker view, int year, int monthOfYear, int  dayOfMonth) {
             myCalendar.set(Calendar.YEAR, year);
             myCalendar.set(Calendar.MONTH, monthOfYear);
             myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
             updateLabel();
      }
    };

    userDOBView.setOnTouchListener(new View.OnTouchListener(){
      @Override
      public boolean onTouch(View v, MotionEvent event){
       if(event.getAction() == MotionEvent.ACTION_DOWN){
         new DatePickerDialog("YourClassName".this, date, 
             myCalendar.get(Calendar.YEAR), 
             myCalendar.get(Calendar.MONTH),         
             myCalendar.get(Calendar.DAY_OF_MONTH)).show();
          }
          return true;
       }
    });
private void updateLabel() {
  String myFormat = "MM/dd/yyyy"; //In which you need put here
  SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);

  // edittext.setText(sdf.format(myCalendar.getTime()));
  userDOBView.setText(sdf.format(myCalendar.getTime()));
} 

其他回答

下面是一个针对懒人的Kotlin扩展函数:

fun EditText.transformIntoDatePicker(context: Context, format: String, maxDate: Date? = null) {
    isFocusableInTouchMode = false
    isClickable = true
    isFocusable = false

    val myCalendar = Calendar.getInstance()
    val datePickerOnDataSetListener =
        DatePickerDialog.OnDateSetListener { _, year, monthOfYear, dayOfMonth ->
            myCalendar.set(Calendar.YEAR, year)
            myCalendar.set(Calendar.MONTH, monthOfYear)
            myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth)
            val sdf = SimpleDateFormat(format, Locale.UK)
            setText(sdf.format(myCalendar.time))
        }

    setOnClickListener {
        DatePickerDialog(
            context, datePickerOnDataSetListener, myCalendar
                .get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
            myCalendar.get(Calendar.DAY_OF_MONTH)
        ).run {
            maxDate?.time?.also { datePicker.maxDate = it }
            show()
        }
    }
}

用法:

在活动:

editText.transformIntoDatePicker(this, "MM/dd/yyyy")
editText.transformIntoDatePicker(this, "MM/dd/yyyy", Date())

在片段:

editText.transformIntoDatePicker(requireContext(), "MM/dd/yyyy")
editText.transformIntoDatePicker(requireContext(), "MM/dd/yyyy", Date())

使用@DrunkenDaddy扩展函数,至少在我的情况下(以编程方式创建EditText),它在第一次单击时显示键盘,然后在第二次单击时显示日期选择器。

显然,将isFocusable和isFocusableInTouchMode设置为false是无关紧要的,因为第一次点击总是被EditText解释为焦点变化。因此,当EditText获得焦点时,我必须触发单击。现在它像预期的那样工作:第一次点击它直接打开日期选择器,而不是键盘(感谢设置showSoftInputOnFocus为false):

fun EditText.transformIntoDatePicker(context: Context, format: String = "dd/MM/yyyy", maxDate: Date? = null) {
    isClickable = true
    showSoftInputOnFocus = false
    isCursorVisible = false

    setOnFocusChangeListener { _, hasFocus ->  if (hasFocus) callOnClick()}

    val myCalendar = Calendar.getInstance()
    val datePickerOnDataSetListener =
        DatePickerDialog.OnDateSetListener { _, year, monthOfYear, dayOfMonth ->
            myCalendar.set(Calendar.YEAR, year)
            myCalendar.set(Calendar.MONTH, monthOfYear)
            myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth)
            val sdf = SimpleDateFormat(format, Locale.getDefault())
            setText(sdf.format(myCalendar.time))
    }

    setOnClickListener {
        DatePickerDialog(
             context, datePickerOnDataSetListener, 
             myCalendar.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
             myCalendar.get(Calendar.DAY_OF_MONTH)
        ).run {
            maxDate?.time?.also { datePicker.maxDate = it }
            show()
    }
}
class MyClass implements OnClickListener, OnDateSetListener {   
   EditText editText;
   this.editText = (EditText) findViewById(R.id.editText);
   this.editText.setOnClickListener(this);
   @Override
   public void onClick(View v) {

       DatePickerDialog dialog = new DatePickerDialog(this, this, 2013, 2, 18);
       dialog.show();
   }
   @Override
   public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
       // this.editText.setText();
   }
}

我认为最好重写EditText类…

public class EditTextDP extends android.support.v7.widget.AppCompatEditText implements View.OnClickListener, DatePickerDialog.OnDateSetListener {
    public EditTextDP(Context context) {
        super(context);
        setOnClickListener(this);
        setFocusable(false);
    }

    public EditTextDP(Context context, AttributeSet attrs) {
        super(context, attrs);
        setOnClickListener(this);
        setFocusable(false);
    }

    public EditTextDP(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        setOnClickListener(this);
        setFocusable(false);
    }

    @Override
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        setText(new StringBuilder().append(dayOfMonth).append("/").append(monthOfYear + 1).append("/").append(year));
    }

    @Override
    public void onClick(View v) {
        Calendar calendar = Calendar.getInstance(TimeZone.getDefault());
        DatePickerDialog dialog = new DatePickerDialog(getContext(), this, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));
        dialog.show();
    }
}

然后在XML中使用它…

            <*.*.*.EditTextDP
                android:id="@+id/c1_dob_hm"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/round_edittext_white"
                android:ems="10"
                android:padding="8dp">

            </*.*.*.EditTextDP>

在XML文件中试试这个:

<EditText
    android:id="@+id/Birthday"
    custom:font="@string/font_avenir_book"
    android:clickable="false" 
    android:cursorVisible="false" 
    android:focusable="false" 
    android:focusableInTouchMode="false"
    android:hint="@string/birthday"/>

在Java文件中是这样的:

public class MainActivity extends AppCompatActivity {
    final Calendar myCalendar= Calendar.getInstance();
    EditText editText;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        editText=(EditText) findViewById(R.id.BirthDate);
        DatePickerDialog.OnDateSetListener date =new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year, int month, int day) {
                myCalendar.set(Calendar.YEAR, year);
                myCalendar.set(Calendar.MONTH,month);
                myCalendar.set(Calendar.DAY_OF_MONTH,day);
                updateLabel();
            }
        };
        editText.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                new DatePickerDialog(MainActivity.this,date,myCalendar.get(Calendar.YEAR),myCalendar.get(Calendar.MONTH),myCalendar.get(Calendar.DAY_OF_MONTH)).show();
            }
        });
    }

    private void updateLabel(){
        String myFormat="MM/dd/yy";
        SimpleDateFormat dateFormat=new SimpleDateFormat(myFormat, Locale.US);
        editText.setText(dateFormat.format(myCalendar.getTime()));
    }
}

在EditText的xml文件中添加android:focusable="false"以允许单个触摸。