Update DateTimePickerDialog.java

pull/2/head
p6zpjanrb 11 months ago
parent 8e3284f640
commit f20392f5a9

@ -32,18 +32,25 @@ import android.text.format.DateUtils;
public class DateTimePickerDialog extends AlertDialog implements OnClickListener { public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
private Calendar mDate = Calendar.getInstance(); private Calendar mDate = Calendar.getInstance();
//创建一个Calendar类型的变量 mDate方便时间的操作
private boolean mIs24HourView; private boolean mIs24HourView;
private OnDateTimeSetListener mOnDateTimeSetListener; private OnDateTimeSetListener mOnDateTimeSetListener;
//声明一个时间日期滚动选择控件 mOnDateTimeSetListener
private DateTimePicker mDateTimePicker; private DateTimePicker mDateTimePicker;
//DateTimePicker控件控件一般用于让用户可以从日期列表中选择单个值。
//运行时,单击控件边上的下拉箭头,会显示为两个部分:一个下拉列表,一个用于选择日期的
public interface OnDateTimeSetListener { public interface OnDateTimeSetListener {
void OnDateTimeSet(AlertDialog dialog, long date); void OnDateTimeSet(AlertDialog dialog, long date);
} }
public DateTimePickerDialog(Context context, long date) { public DateTimePickerDialog(Context context, long date) {
//对该界面对话框的实例化
super(context); super(context);
//对数据库的操作
mDateTimePicker = new DateTimePicker(context); mDateTimePicker = new DateTimePicker(context);
setView(mDateTimePicker); setView(mDateTimePicker);
//添加一个子视图
mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
public void onDateTimeChanged(DateTimePicker view, int year, int month, public void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute) { int dayOfMonth, int hourOfDay, int minute) {
@ -52,15 +59,20 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
mDate.set(Calendar.MINUTE, minute); mDate.set(Calendar.MINUTE, minute);
//将视图中的各选项设置为系统当前时间
updateTitle(mDate.getTimeInMillis()); updateTitle(mDate.getTimeInMillis());
} }
}); });
mDate.setTimeInMillis(date); mDate.setTimeInMillis(date);
//得到系统时间
mDate.set(Calendar.SECOND, 0); mDate.set(Calendar.SECOND, 0);
//将秒数设置为0
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
setButton(context.getString(R.string.datetime_dialog_ok), this); setButton(context.getString(R.string.datetime_dialog_ok), this);
setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
//设置按钮
set24HourView(DateFormat.is24HourFormat(this.getContext())); set24HourView(DateFormat.is24HourFormat(this.getContext()));
//时间标准化打印
updateTitle(mDate.getTimeInMillis()); updateTitle(mDate.getTimeInMillis());
} }
@ -70,7 +82,7 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
mOnDateTimeSetListener = callBack; mOnDateTimeSetListener = callBack;
} }//将时间日期滚动选择控件实例化
private void updateTitle(long date) { private void updateTitle(long date) {
int flag = int flag =
@ -79,12 +91,13 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
DateUtils.FORMAT_SHOW_TIME; DateUtils.FORMAT_SHOW_TIME;
flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
} }//android开发中常见日期管理工具类API——DateUtils按照上下午显示时间
public void onClick(DialogInterface arg0, int arg1) { public void onClick(DialogInterface arg0, int arg1) {
if (mOnDateTimeSetListener != null) { if (mOnDateTimeSetListener != null) {
mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
} }
} }//第一个参数arg0是接收到点击事件的对话框
//第二个参数arg1是该对话框上的按钮
} }
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