任何人都可以发布 Android 中简单日期选择器的示例代码。
如果在 Android 中无法使用日期选择器,则需要一个选择日期的选项。
使用日期选择器
http://developer.android.com/reference/android/widget/DatePicker.html
它从 API 级别 1 开始可用
下面是一个如何使用 DatePickerDialog 的示例。
首先将 TextView 和 Button 添加到您的 layout.xml
<Button android:id="@+id/myDatePickerButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Choose Date"/>
<TextView android:id="@+id/showMyDate"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
接下来,您必须在布局的 onCreate 方法中初始化 Button 和 TextView。你需要这个类变量
private int mYear;
private int mMonth;
private int mDay;
private TextView mDateDisplay;
private Button mPickDate;
static final int DATE_DIALOG_ID = 0;
这里的 onCreate 方法
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mDateDisplay = (TextView) findViewById(R.id.showMyDate);
mPickDate = (Button) findViewById(R.id.myDatePickerButton);
mPickDate.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
showDialog(DATE_DIALOG_ID);
}
});
// get the current date
final Calendar c = Calendar.getInstance();
mYear = c.get(Calendar.YEAR);
mMonth = c.get(Calendar.MONTH);
mDay = c.get(Calendar.DAY_OF_MONTH);
// display the current date
updateDisplay();
}
更新显示方法:
private void updateDisplay() {
this.mDateDisplay.setText(
new StringBuilder()
// Month is 0 based so add 1
.append(mMonth + 1).append("-")
.append(mDay).append("-")
.append(mYear).append(" "));
}
DatePickDialog 的回调监听器
private DatePickerDialog.OnDateSetListener mDateSetListener =
new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
mYear = year;
mMonth = monthOfYear;
mDay = dayOfMonth;
updateDisplay();
}
};
onCreateDialog 方法,由 showDialog() 调用
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DATE_DIALOG_ID:
return new DatePickerDialog(this,
mDateSetListener,
mYear, mMonth, mDay);
}
return null;
}
希望它有所帮助,使用它并且工作正常。
示例来自
http://developer.android.com/guide/tutorials/views/hello-datepicker.html
这是一个更新版本,它记录了与支持库的向后兼容性:
http://developer.android.com/guide/topics/ui/controls/pickers.html#DatePicker
public class dateresult extends Activity
{
private TextView tvdisplaydate;
private DatePicker dpResult;
private Button bntchangedate;
private int year;
private int month;
private int day;
static final int DATE_DIALOG_ID = 999;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.result);
setCurrentdateonView();
addListenerOnButton();
}
public void setCurrentdateonView(){
tvdisplaydate = (TextView)findViewById(R.id.tvdate);
dpResult = (DatePicker) findViewById(R.id.dpResult);
final Calendar c = Calendar.getInstance();
year = c.get(Calendar.YEAR);
month = c.get(Calendar.MONTH) ;
day = c.get(Calendar.DAY_OF_MONTH);
tvdisplaydate.setText(new StringBuffer() .append(month+1).append("-").append(day).append("-").append(year).append(""));
dpResult.init(year, month, day, null);
}
public void addListenerOnButton(){
bntchangedate = (Button)findViewById(R.id.bntchangedate);
bntchangedate.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
showDialog(DATE_DIALOG_ID);
}
});
}
@Override
protected Dialog onCreateDialog(int id) {
// TODO Auto-generated method stub
switch(id){
case DATE_DIALOG_ID:
return new DatePickerDialog(this,datePickerLisner,year,month,day);
}
return null;
}
private DatePickerDialog.OnDateSetListener datePickerLisner = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int Selectyear,int Selectmonth, int Selectday) {
year= Selectyear;
month= Selectmonth;
day = Selectday;
tvdisplaydate.setText(new StringBuilder()
.append(Selectmonth+1).append("-").append(Selectday).append("-").append(Selectyear).append(""));
dpResult.init(year, month, day, null);
}
};
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="@+id/bntchangedate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Change Date" />
<TextView
android:id="@+id/lbldate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Current Date (M-D-YYYY) :"
android:textAppearance="?android:attr/textAppearanceLarge"/>
<TextView
android:id="@+id/tvdate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceLarge" />
<DatePicker
android:id="@+id/dpResult"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
public class DatePickerDialogFragment extends DialogFragment{
//ResidenceActivity date = new ResidenceActivity();
Handler mHandler ;
int mDay;
int mMonth;
int mYear;
public DatePickerDialogFragment(Handler h){
/** Getting the reference to the message handler instantiated in MainActivity class */
mHandler = h;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState){
/** Creating a bundle object to pass currently set date to the fragment */
Bundle b = getArguments();
/** Getting the day of month from bundle */
mDay = b.getInt("set_day");
/** Getting the month of year from bundle */
mMonth = b.getInt("set_month");
/** Getting the year from bundle */
mYear = b.getInt("set_year");
/** DatePickerDialog's "Set" click listener */
DatePickerDialog.OnDateSetListener listener = new DatePickerDialog.OnDateSetListener() {
// @Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
mDay = dayOfMonth;
mMonth = monthOfYear;
mYear = year;
/** Creating a bundle object to pass currently set date to the fragment */
Bundle b = new Bundle();
/** Adding currently set day to bundle object */
b.putInt("set_day", mDay);
/** Adding currently set month to bundle object */
b.putInt("set_month", mMonth);
/** Adding currently set year to bundle object */
b.putInt("set_year", mYear);
/** Adding Current date in a string to bundle object */
b.putString("set_date", Integer.toString(mDay) + "/" + Integer.toString(mMonth+1) + "/" + Integer.toString(mYear));
/** Creating an instance of Message */
Message m = new Message();
/** Setting bundle object on the message object m */
m.setData(b);
/** Message m is sending using the message handler instantiated in MainActivity class */
mHandler.sendMessage(m);
}
};
/** Opening the DatePickerDialog window */
return new DatePickerDialog(getActivity(), listener, mYear, mMonth, mDay);
}
}
接受的答案不处理用户在日期选择器中单击取消。在这种情况下,不应更新任何内容。
我想要和 OP 一样的东西,但我只是想要它内联。这是我使用的:
创建单击日期选择器确定按钮时将调用的回调:
public void datePicked(int year, int month, int day) {
buttonDate.setText(String.valueOf(year) + "/" +
String.valueOf(month) + "/" + String.valueOf(day));
}
然后在创建按钮的方法中使用以下代码来选择日期:
buttonDate = (Button) rootView.findViewById(R.id.button_select_date);
buttonDate.setText("Select Date");
buttonDate.setOnClickListener(new View.OnClickListener() {
public void setReturnDate(int year, int month, int day) {
datePicked(year, month, day);
}
@Override
public void onClick(View v) {
Dialog datePickerDialog = new DatePickerDialog(activity, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
}
}, leagueEndDate.get(Calendar.YEAR), leagueEndDate.get(Calendar.MONTH), leagueEndDate
.get(Calendar.DAY_OF_MONTH));
datePickerDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
setReturnDate(((DatePickerDialog) dialog).getDatePicker().getYear(),
((DatePickerDialog) dialog).getDatePicker().getMonth(), ((DatePickerDialog) dialog)
.getDatePicker().getDayOfMonth());
}
});
datePickerDialog.show();
}
});
Step 1 : create a java file:
package com.example.babs;
import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.os.Bundle;
import android.view.View;
import android.widget.DatePicker;
import android.app.FragmentManager;
public class EditUserInfo extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.user_edit_view);
}
public class DatePickerFragment extends DialogFragment
implements DatePickerDialog.OnDateSetListener {
// pgrm mark ---- ---- ----- ---- ---- ----- ---- ---- ----- ---- ---- -----
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
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);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
public void onDateSet(DatePicker view, int year, int month, int day) {
// Do something with the date chosen by the user
}
}
public void showDatePickerDialog(View v) {
FragmentManager fragmentManager = getFragmentManager();
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(fragmentManager, "datePicker");
}
}// end main class EditUserInfo
step 2: your xml file must contain :
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white"
android:fillViewport="true" >
</ScrollView>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/pick_date"
android:onClick="showDatePickerDialog" />
要使用 DatePicker,请在您的 OnCreate of Activity 中添加以下源代码。
PS:确保应该为您的 EditText 提供android:focusable="false" 。
// Edittext in your layout file
date = (EditText) findViewById(R.id.date);
// onclick on edit text
date.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final Calendar c = Calendar.getInstance();
int mYear = c.get(Calendar.YEAR); // current year
int mMonth = c.get(Calendar.MONTH); // current month
int mDay = c.get(Calendar.DAY_OF_MONTH); // current day
// date picker dialog
datePickerDialog = new DatePickerDialog(MainActivity.this,
new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// set day of month , month and year value in the edit text
date.setText(dayOfMonth + "/"+ (monthOfYear + 1) + "/" + year);
}
}, mYear, mMonth, mDay);
datePickerDialog.show();
}
});
当您单击 Edittext 时,它将打开日历。
使用:导入 java.util.Calendar;
改为:导入 android.icu.util.Calendar。
这个包只支持不低于 24 级的 API。这是我们需要用来在对话框中获取日历的包,
这很好用。