关于日期选择控件，之前项目中用到了好多次，不同的项目需求是不一样的，比如说UI啊，时间选择限制等等。这次写的demo就从几个方面来解决项目中可能出现的需求情况。
首先看效果：
1.首先关于dialog的XML布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="#FFFFFFFF" android:orientation="vertical">
<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_vertical" android:orientation="horizontal" android:padding="12dp">
<TextView android:id="@+id/date_title" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="" android:textColor="#49ADE9" android:textSize="17dp"/>
<ImageView android:id="@+id/date_cancle" android:layout_width="20dp" android:layout_height="20dp" android:background="@mipmap/icon_x" android:scaleType="center"/>
</LinearLayout>
<View android:layout_width="match_parent" android:layout_height="2dp" android:background="#49ADE9"/>
<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical">
<DatePicker android:id="@+id/datepicker" android:layout_width="match_parent" android:layout_height="wrap_content" android:calendarViewShown="false" android:datePickerMode="spinner" android:descendantFocusability="blocksDescendants" android:spinnersShown="true" android:theme="@style/Theme.AppCompat.Light"></DatePicker>
<TimePicker android:id="@+id/timepicker" android:layout_width="match_parent" android:layout_height="wrap_content" android:theme="@style/Theme.AppCompat.Light" android:timePickerMode="spinner" android:visibility="gone"/>
</LinearLayout>
<View android:layout_width="match_parent" android:layout_height="1dp" android:background="#f4f4f4"/>
<TextView android:id="@+id/date_submit" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:paddingBottom="16dp" android:paddingTop="16dp" android:text="完成" android:textSize="17dp"/>
</LinearLayout> 注：1>.在DatePicker中有个属性datePickerMode，这个是为了选择显示模式，比如：日历模式，滚动模式。
2>.同样在TimePicker中也有个属性timePickerMode，是否是显示日历模式还是滚动模式
2.Activity布局显示：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/activity_main" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:orientation="vertical" tools:context="com.example.li.datepickertimerdialog.MainActivity">
<Button android:id="@+id/btn_time" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="选择时间" android:textSize="14dp" android:textColor="#000000"/>
<LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:layout_marginTop="10dp">
<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ff0000" android:text="时间显示："/>
<TextView android:id="@+id/show_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ff0000"/>
</LinearLayout>
</LinearLayout>
3.点击弹出时间选择控件
Button btnTime = (Button) findViewById(R.id.btn_time);
final TextView showTime = (TextView)findViewById(R.id.show_time);
btnTime.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DateTimePickDialogUtil dateTimePicKDialog = new DateTimePickDialogUtil(MainActivity.this, null);
dateTimePicKDialog.dateTimePicKDialog(showTime, 0, false);
}
}); 这里关于dateTimePicKDialog中几个参数的介绍：
①.showTime是要显示最终选择的时间
②.0表示大于当前时间0天，如果不需要限制时间选择的话，我这里是传了-9999，这块代码有些问题，没来得及修改，但是不影响操作，望见谅
③.boolean值表示是否要展示TimePicker,false表示不展示
4.DateTimePickDialogUtil代码
初始化：
public void init(DatePicker datePicker) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar calendar = Calendar.getInstance();
if (day > 0) {
calendar.setTime(new Date(System.currentTimeMillis() + (day * 60 * 60 * 1000 * 24)));
dateTime = sdf.format(calendar.getTime());
} else {
dateTime = sdf.format(calendar.getTime());
}
if (!(null == initDateTime || "".equals(initDateTime))) {
calendar = this.getCalendarByInintData(initDateTime);
} else {
initDateTime = calendar.get(Calendar.YEAR) + "-"
+ calendar.get(Calendar.MONTH) + "-"
+ calendar.get(Calendar.DAY_OF_MONTH) + "- ";
}
datePicker.init(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), new OnDateChangedListener() {
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
if (day > 0) {
Calendar mCalendar = Calendar.getInstance();
mCalendar.setTime(new Date(System.currentTimeMillis() + (day * 60 * 60 * 1000 * 24)));
// 获得日历实例
Calendar calendar = Calendar.getInstance();
calendar.set(view.getYear(), view.getMonth(),
view.getDayOfMonth());
if (System.currentTimeMillis() + (day * 60 * 60 * 1000 * 24) > calendar.getTimeInMillis()) {
view.init(mCalendar.get(Calendar.YEAR), mCalendar.get(Calendar.MONTH), mCalendar.get(Calendar.DAY_OF_MONTH), this);
dateTime = sdf.format(mCalendar.getTime());
dateTitle.setText(dateTime + getWeek(dateTime));
} else {
// 获得日历实例
dateTime = sdf.format(calendar.getTime());
dateTitle.setText(dateTime + getWeek(dateTime));
}
} else if (day == -9999) {
// 获得日历实例
Calendar calendar = Calendar.getInstance();
calendar.set(view.getYear(), view.getMonth(),
view.getDayOfMonth());
dateTime = sdf.format(calendar.getTime());
dateTitle.setText(dateTime + getWeek(dateTime));
} else {
if (isDateAfter(view)) {
Calendar mCalendar = Calendar.getInstance();
view.init(mCalendar.get(Calendar.YEAR), mCalendar.get(Calendar.MONTH), mCalendar.get(Calendar.DAY_OF_MONTH), this);
dateTime = sdf.format(mCalendar.getTime());
dateTitle.setText(dateTime + getWeek(dateTime));
} else {
// 获得日历实例
Calendar calendar = Calendar.getInstance();
calendar.set(view.getYear(), view.getMonth(),
view.getDayOfMonth());
dateTime = sdf.format(calendar.getTime());
dateTitle.setText(dateTime + getWeek(dateTime));
}
}
}
private boolean isDateAfter(DatePicker tempView) {
Calendar mCalendar = Calendar.getInstance();
Calendar tempCalendar = Calendar.getInstance();
tempCalendar.set(tempView.getYear(), tempView.getMonth(), tempView.getDayOfMonth(), 0, 0, 0);
if (tempCalendar.after(mCalendar))
return false;
else
return true;
}
});
}弹出dialog：
/** * 弹出日期时间选择框方法 * 当前时间的下一天 * * @param inputDate :为需要设置的日期时间文本编辑框 * @return */
public Dialog dateTimePicKDialog(final TextView inputDate, int day, final boolean isShowTime) {
this.day = day;
LinearLayout dateTimeLayout = (LinearLayout) activity
.getLayoutInflater().inflate(R.layout.common_datetime, null);
final Dialog dialog = new android.app.AlertDialog.Builder(activity).create();
dialog.setCanceledOnTouchOutside(false);
dialog.setOnKeyListener(keylistener);
dialog.setCancelable(false);
dialog.show();
dialog.setContentView(dateTimeLayout);
dateTitle = (TextView) dateTimeLayout.findViewById(R.id.date_title);
TimePicker timePicker = (TimePicker) dateTimeLayout.findViewById(R.id.timepicker);
if (isShowTime) {
timePicker.setVisibility(View.VISIBLE);
timePicker.setIs24HourView(true);
}
hours = timePicker.getCurrentHour();
minutes = timePicker.getCurrentMinute();
timePicker.setOnTimeChangedListener(new OnTimeChangedListener() {
@Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
hours = hourOfDay;
minutes = minute;
}
});
dateTitle.setText(initDateTime);
ImageView dateCancle = (ImageView) dateTimeLayout.findViewById(R.id.date_cancle);
TextView dateSubmit = (TextView) dateTimeLayout.findViewById(R.id.date_submit);
datePicker = (DatePicker) dateTimeLayout.findViewById(R.id.datepicker);
dateSubmit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
Long diff = null;
try {
Date d1 = df.parse(initDateTime);
Date d2 = df.parse(dateTime); //前的时间
diff = d1.getTime() - d2.getTime(); //两时间差
d = d1.getTime();
} catch (ParseException e) {
e.printStackTrace();
}
if (diff >= 0) {
Toast.makeText(activity.getApplicationContext(), "请选择大于现在的日期", Toast.LENGTH_SHORT).show();
} else {
if (isShowTime) {
if (minutes < 10) {
inputDate.setText(dateTime + " " + hours + ":0" + minutes);
} else {
inputDate.setText(dateTime + " " + hours + ":" + minutes);
}
} else {
inputDate.setText(dateTime);
}
if (cd != null) {
cd.toShow(d);
}
}
dialog.dismiss();
}
});
dateCancle.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
dialog.dismiss();
}
});
init(datePicker);
dateTitle.setText(dateTime + getWeek(dateTime));
return dialog;
}关于选择周几：
private String getWeek(String time) {
String Week = " 周";
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");//也可将此值当参数传进来
Calendar c = Calendar.getInstance();
try {
c.setTime(format.parse(time));
} catch (ParseException e) {
e.printStackTrace();
}
switch (c.get(Calendar.DAY_OF_WEEK)) {
case 1:
Week += "日";
break;
case 2:
Week += "一";
break;
case 3:
Week += "二";
break;
case 4:
Week += "三";
break;
case 5:
Week += "四";
break;
case 6:
Week += "五";
break;
case 7:
Week += "六";
break;
default:
break;
}
return Week;
}由于有的项目中需要在年月日中的显示中添加“日”，这个一直没找到好的方法，以及对时间的显示只显示时，去掉分，这个也一直没想到好的做法（除了自定义，有水平有限）。希望有大神了可以再此基础上修改，可以发到我邮箱（1346765933@qq.com）。
最后如果有写的不好的请提出您宝贵的意见，谢谢！
demo在github的地址：https://github.com/CristianoLi/DatePickerTimerDialog