日期的选择控件DatePickerDialog
1.系统自带DatePickerDialog的使用：
private Calendar calendar;
private int mYear;
private int mMonth;
private int mDay;
private static final int DATE_DIALOG_ID = 0;
private DatePickerDialog datePickerDialog;
private DatePickerDialog showDateDialog(int id){
switch (id){
caseDATE_DIALOG_ID:
return newDatePickerDialog(getActivity(),onDateSetListener,mYear,mMonth,mDay);
}
return null;
}
DatePickerDialog.OnDateSetListener onDateSetListener = new DatePickerDialog.OnDateSetListener(){
@Override
public voidonDateSet(DatePicker datePicker, int y, int m, int d) {
mYear = y;
mMonth = m;
mDay = d;
updateDisPlay();
}
};
private voidupdateDisPlay(){
dateTextView.setText(String.format("%04d-%02d-%02d", mYear,mMonth + 1, mDay));
}
使用时：
calendar = Calendar.getInstance();
mYear = calendar.get(Calendar.YEAR);
mMonth= calendar.get(Calendar.MONTH);
mDay =calendar.get(Calendar.DAY_OF_MONTH);
datePickerDialog = showDateDialog(DATE_DIALOG_ID);
datePickerDialog.show();
2.套用
public class DatePickerViewextends AlertDialog implements DialogInterface.OnClickListener, DatePicker.OnDateChangedListener{
private static final String YEAR ="year";
private static final String MONTH ="month";
private static final String DAY ="day";
private final DatePicker mDatePicker;
private final OnDateSetListener mCallBack;
private View view;
public DatePickerView(Context context,OnDateSetListener onDateSetListener,
int year, intmonthOfYear, int dayOfMonth) {
this(context, 0, onDateSetListener,year, monthOfYear, dayOfMonth);
}
public DatePickerView(Context context, inttheme,
OnDateSetListeneronDateSetListener, int year, int monthOfYear,
int dayOfMonth) {
super(context, theme);
mCallBack = onDateSetListener;
Context themeContext = getContext();
//將設置alertdialog的settitle和setButton方法注释掉，因为下面要使用setContentView（View view）方法
//代替原有的setView（View view）方法，区别是替换的范围不同。替换后就不需要设置alertdialog的title和button了。
// setButton(BUTTON_POSITIVE,
//themeContext.getText(R.string.date_time_set), this);
// setButton(BUTTON_NEGATIVE,themeContext.getText(R.string.cancel),
// (OnClickListener) null);
// setIcon(0);
//setTitle(R.string.date_picker_dialog_title);
LayoutInflater inflater =(LayoutInflater) themeContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
//注意，其实datepickerdialog就是把系统提供的日期选择器DatePicker包装一下而已，所以只需要实现自己需要的布局样式
//然后把DatePicker嵌套进去就可以了。
view =inflater.inflate(R.layout.date_picker_dialog, null);
view.setBackgroundColor(Color.BLUE);
mDatePicker = (DatePicker)view.findViewById(R.id.datePicker);
mDatePicker.init(year, monthOfYear,dayOfMonth, this);
//实现自己的按钮
setButton();
}
public void myShow() {
//自己实现show方法，主要是为了把setContentView方法放到show方法后面，否则会报错。
show();
setContentView(view);
}
private void setButton() {
//获取自己定义的响应按钮并设置监听，直接调用构造时传进来的CallBack接口（为了省劲，没有自己写接口，直接用之前本类定义好的）同时关闭对话框。
view.findViewById(R.id.date_picker_ok).setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v){
if (mCallBack != null){
mDatePicker.clearFocus();
mCallBack.onDateSet(mDatePicker,
mDatePicker.getYear(),
mDatePicker.getMonth(),
mDatePicker.getDayOfMonth());
}
dismiss();
}
});
}
@Override
public void onClick(DialogInterfacedialogInterface, int i) {
}
@Override
public void onDateChanged(DatePickerdatePicker, int year, int month, int day) {
mDatePicker.init(year, month, day,null);
}
public DatePicker getDatePicker() {
return mDatePicker;
}
public void updateDate(int year, intmonthOfYear, int dayOfMonth) {
mDatePicker.updateDate(year,monthOfYear, dayOfMonth);
}
public interface OnDateSetListener {
void onDateSet(DatePicker view, intyear, int monthOfYear,
int dayOfMonth);
}
@Override
public Bundle onSaveInstanceState() {
Bundle state =super.onSaveInstanceState();
state.putInt(YEAR,mDatePicker.getYear());
state.putInt(MONTH,mDatePicker.getMonth());
state.putInt(DAY,mDatePicker.getDayOfMonth());
return state;
}
@Override
public void onRestoreInstanceState(BundlesavedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
int year = savedInstanceState.getInt(YEAR);
int month =savedInstanceState.getInt(MONTH);
int day =savedInstanceState.getInt(DAY);
mDatePicker.init(year, month, day,this);
}
}
date_picker_dialog.xml
<?xml version="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white_bg">
<TextView
android:id="@+id/date_picker_title"
android:layout_width="match_parent"
android:layout_height="40dp"
android:text="请选择日期"
android:textColor="@color/text_color"
android:gravity="center"
android:background="@color/yellow"/>
<DatePicker
android:id="@+id/datePicker"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:calendarViewShown="false"
android:spinnersShown="true"
android:background="@color/white_bg"/>
<TextView
android:id="@+id/date_picker_ok"
android:layout_width="match_parent"
android:layout_height="40dp"
android:gravity="center"
android:text="完成"
android:textColor="@color/text_color"
android:background="@color/yellow"/>
</LinearLayout>
使用时：
datePickerView = newDatePickerView(getActivity(),mDateSetListener,mYear,mMonth,mDay);
datePickerView.myShow();
//mDateSetListener类似上面的onDateSetListener