Android 自定义时间控件

如何自定义一个时间控件：demo项目地址在文章最下方：

运行案例：

![Image 1][]

实现步骤：

1.自定义时间的控件的绘制(如何绘制自己喜欢的时间样式)

public class DatePickerView extends View {

private Context context;

private boolean loop = true;

public static final float MARGIN_ALPHA = 2.8f;

private List mDataList;

private int mCurrentSelected;

private Paint mPaint, nPaint;

private float mMaxTextSize = 80;

private float mMinTextSize = 40;

private float mMaxTextAlpha = 255;

private float mMinTextAlpha = 120;

private int mViewHeight;

private int mViewWidth;

private float mLastDownY;

private float mMoveLen = 0;

private boolean isInit = false;

private boolean canScroll = true;

private onSelectListener mSelectListener;

private Timer timer;

private MyTimerTask mTask;

private Handler updateHandler = new Handler() {

@Override

public void handleMessage(Message msg) {

if (Math.abs(mMoveLen) < SPEED) {

mMoveLen = 0;

if (mTask != null) {

mTask.cancel();

mTask = null;

performSelect();

}

} else {

mMoveLen = mMoveLen - mMoveLen / Math.abs(mMoveLen) * SPEED;

}

invalidate();

}

};

public DatePickerView(Context context, AttributeSet attrs) {

super(context, attrs);

this.context = context;

init();

}

public void setOnSelectListener(onSelectListener listener) {

mSelectListener = listener;

}

private void performSelect() {

if (mSelectListener != null) {

mSelectListener.onSelect(mDataList.get(mCurrentSelected));

}

}

public void setData(List datas) {

mDataList = datas;

mCurrentSelected = datas.size() / 4;

invalidate();

}

public void setSelected(int selected) {

mCurrentSelected = selected;

if (loop) {

int distance = mDataList.size() / 2 - mCurrentSelected;

if (distance < 0) {

for (int i = 0; i < -distance; i++) {

moveHeadToTail();

mCurrentSelected—;

}

} else if (distance > 0) {

for (int i = 0; i < distance; i++) {

moveTailToHead();

mCurrentSelected++;

}

}

}

invalidate();

}

public void setSelected(String mSelectItem) {

for (int i = 0; i < mDataList.size(); i++) {

if (mDataList.get(i).equals(mSelectItem)) {

setSelected(i);

break;

}

}

}

private void moveHeadToTail() {

if (loop) {

String head = mDataList.get(0);

mDataList.remove(0);

mDataList.add(head);

}

}

private void moveTailToHead() {

if (loop) {

String tail = mDataList.get(mDataList.size() - 1);

mDataList.remove(mDataList.size() - 1);

mDataList.add(0, tail);

}

}

@Override

protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

super.onMeasure(widthMeasureSpec, heightMeasureSpec);

mViewHeight = getMeasuredHeight();

mViewWidth = getMeasuredWidth();

// 按照View的高度计算字体大小

mMaxTextSize = mViewHeight / 7f;

mMinTextSize = mMaxTextSize / 2.2f;

isInit = true;

invalidate();

}

private void init() {

timer = new Timer();

mDataList = new ArrayList<>();

//第一个paint

mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);

mPaint.setStyle(Style.FILL);

mPaint.setTextAlign(Align.CENTER);

mPaint.setColor(ContextCompat.getColor(context, R.color.text1));

//第二个paint

nPaint = new Paint(Paint.ANTI_ALIAS_FLAG);

nPaint.setStyle(Style.FILL);

nPaint.setTextAlign(Align.CENTER);

nPaint.setColor(ContextCompat.getColor(context, R.color.text2));

}

@Override

protected void onDraw(Canvas canvas) {

super.onDraw(canvas);

if (isInit) {

drawData(canvas);

}

}

private void drawData(Canvas canvas) {

float scale = parabola(mViewHeight / 4.0f, mMoveLen);

float size = (mMaxTextSize - mMinTextSize) * scale + mMinTextSize;

mPaint.setTextSize(size);

mPaint.setAlpha((int) ((mMaxTextAlpha - mMinTextAlpha) * scale + mMinTextAlpha))

float x = (float) (mViewWidth / 2.0);

float y = (float) (mViewHeight / 2.0 + mMoveLen);

FontMetricsInt fmi = mPaint.getFontMetricsInt();

float baseline = (float) (y - (fmi.bottom / 2.0 + fmi.top / 2.0));

canvas.drawText(mDataList.get(mCurrentSelected), x, baseline, mPaint);

// 绘制上方data

for (int i = 1; (mCurrentSelected - i) >= 0; i++) {

drawOtherText(canvas, i, -1);

}

// 绘制下方data

for (int i = 1; (mCurrentSelected + i) < mDataList.size(); i++) {

drawOtherText(canvas, i, 1);

}

}

private void drawOtherText(Canvas canvas, int position, int type) {

float d = MARGIN_ALPHA * mMinTextSize * position + type * mMoveLen;

float scale = parabola(mViewHeight / 4.0f, d);

float size = (mMaxTextSize - mMinTextSize) * scale + mMinTextSize;

nPaint.setTextSize(size);

nPaint.setAlpha((int) ((mMaxTextAlpha - mMinTextAlpha) * scale + mMinTextAlpha));

float y = (float) (mViewHeight / 2.0 + type * d);

FontMetricsInt fmi = nPaint.getFontMetricsInt();

float baseline = (float) (y - (fmi.bottom / 2.0 + fmi.top / 2.0));

canvas.drawText(mDataList.get(mCurrentSelected + type * position),

(float) (mViewWidth / 2.0), baseline, nPaint);

}

private float parabola(float zero, float x) {

float f = (float) (1 - Math.pow(x / zero, 2));

return f < 0 ? 0 : f;

}

@Override

public boolean onTouchEvent(MotionEvent event) {

switch (event.getActionMasked()) {

case MotionEvent.ACTION_DOWN:

doDown(event);

break;

case MotionEvent.ACTION_MOVE:

mMoveLen += (event.getY() - mLastDownY);

if (mMoveLen > MARGIN_ALPHA * mMinTextSize / 2) {

if (!loop && mCurrentSelected == 0) {

mLastDownY = event.getY();

invalidate();

return true;

}

if (!loop) {

mCurrentSelected—;

}

// 往下滑超过离开距离

moveTailToHead();

mMoveLen = mMoveLen - MARGIN_ALPHA * mMinTextSize;

} else if (mMoveLen < -MARGIN_ALPHA * mMinTextSize / 2) {

if (mCurrentSelected == mDataList.size() - 1) {

mLastDownY = event.getY();

invalidate();

return true;

}

if (!loop) {

mCurrentSelected++;

}

// 往上滑超过离开距离

moveHeadToTail();

mMoveLen = mMoveLen + MARGIN_ALPHA * mMinTextSize;

}

mLastDownY = event.getY();

invalidate();

break;

case MotionEvent.ACTION_UP:

doUp();

break;

}

return true;

}

private void doDown(MotionEvent event) {

if (mTask != null) {

mTask.cancel();

mTask = null;

}

mLastDownY = event.getY();

}

private void doUp() {

// 抬起手后mCurrentSelected的位置由当前位置move到中间选中位置

if (Math.abs(mMoveLen) < 0.0001) {

mMoveLen = 0;

return;

}

if (mTask != null) {

mTask.cancel();

mTask = null;

}

mTask = new MyTimerTask(updateHandler);

timer.schedule(mTask, 0, 10);

}

class MyTimerTask extends TimerTask {

Handler handler;

public MyTimerTask(Handler handler) {

this.handler = handler;

}

@Override

public void run() {

handler.sendMessage(handler.obtainMessage());

}

}

public interface onSelectListener {

void onSelect(String text);

}

public void setCanScroll(boolean canScroll) {

this.canScroll = canScroll;

}

@Override

public boolean dispatchTouchEvent(MotionEvent event) {

return canScroll && super.dispatchTouchEvent(event);

}

public void setIsLoop(boolean isLoop) {

loop = isLoop;

}

}

2。自定义时间控件（功能的实现）

/*构造方法*/

public CustomDatePicker(Context context, ResultHandler resultHandler, String startDate, String endDate) {

if (isValidDate(startDate, “yyyy-MM-dd HH:mm”) && isValidDate(endDate, “yyyy-MM-dd HH:mm”)) {

canAccess = true;

this.context = context;

this.handler = resultHandler;

selectedCalender = Calendar.getInstance();

startCalendar = Calendar.getInstance();

endCalendar = Calendar.getInstance();

SimpleDateFormat sdf = new SimpleDateFormat(“yyyy-MM-dd HH:mm”, Locale.CHINA);

try {

startCalendar.setTime(sdf.parse(startDate));

endCalendar.setTime(sdf.parse(endDate));

} catch (ParseException e) {

e.printStackTrace();

}

initDialog();

initView();

}

}

/*弹出dialog 进行时间的选择*/

private void initDialog() {

if (datePickerDialog == null) {

datePickerDialog = new Dialog(context, R.style.time_dialog);

datePickerDialog.setCancelable(false);/*dialog弹出后会点击屏幕或物理放回 dialog不消失*/

datePickerDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);/*应用程序窗体显示状态操作 无标题*/

datePickerDialog.setContentView(R.layout.custom_date_picker);/*设置弹出的布局*/

Window window = datePickerDialog.getWindow();

window.setGravity(Gravity.BOTTOM);/*在屏幕的下方弹出*/

WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);

DisplayMetrics dm = new DisplayMetrics();

manager.getDefaultDisplay().getMetrics(dm);

/*更改窗口大小 是先显示出来dialog show出来 才能设置宽高属性*/

WindowManager.LayoutParams lp = window.getAttributes();

lp.width = dm.widthPixels;

window.setAttributes(lp);

}

}

private void initView() {

year_pv = (DatePickerView) datePickerDialog.findViewById(R.id.year_pv);

month_pv = (DatePickerView) datePickerDialog.findViewById(R.id.month_pv);

day_pv = (DatePickerView) datePickerDialog.findViewById(R.id.day_pv);

hour_pv = (DatePickerView) datePickerDialog.findViewById(R.id.hour_pv);

minute_pv = (DatePickerView) datePickerDialog.findViewById(R.id.minute_pv);

tv_cancle = (TextView) datePickerDialog.findViewById(R.id.tv_cancle);

tv_select = (TextView) datePickerDialog.findViewById(R.id.tv_select);

hour_text = (TextView) datePickerDialog.findViewById(R.id.hour_text);

minute_text = (TextView) datePickerDialog.findViewById(R.id.minute_text);

year_text= (TextView) datePickerDialog.findViewById(R.id.year_text);

month_text= (TextView) datePickerDialog.findViewById(R.id.month_text);

day_text= (TextView) datePickerDialog.findViewById(R.id.day_text);

/*设置确定和取消按钮的点击事件*/

tv_cancle.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

datePickerDialog.dismiss();

}

});

tv_select.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

SimpleDateFormat sdf = new SimpleDateFormat(“yyyy-MM-dd HH:mm”, Locale.CHINA);

handler.handle(sdf.format(selectedCalender.getTime()));

datePickerDialog.dismiss();

}

});

}

private void initParameter() {

startYear = startCalendar.get(Calendar.YEAR);

startMonth = startCalendar.get(Calendar.MONTH) + 1;

startDay = startCalendar.get(Calendar.DAY_OF_MONTH);

startHour = startCalendar.get(Calendar.HOUR_OF_DAY);

startMinute = startCalendar.get(Calendar.MINUTE);

endYear = endCalendar.get(Calendar.YEAR);

endMonth = endCalendar.get(Calendar.MONTH) + 1;

endDay = endCalendar.get(Calendar.DAY_OF_MONTH);

endHour = endCalendar.get(Calendar.HOUR_OF_DAY);

endMinute = endCalendar.get(Calendar.MINUTE);

spanYear = startYear != endYear;

spanMon = (!spanYear) && (startMonth != endMonth);

spanDay = (!spanMon) && (startDay != endDay);

spanHour = (!spanDay) && (startHour != endHour);

spanMin = (!spanHour) && (startMinute != endMinute);

selectedCalender.setTime(startCalendar.getTime());

}

private void initTimer() {

initArrayList();

if (spanYear) {

for (int i = startYear; i <= endYear; i++) {

year.add(String.valueOf(i));

}

for (int i = startMonth; i <= MAX_MONTH; i++) {

month.add(formatTimeUnit(i));

}

for (int i = startDay; i <= startCalendar.getActualMaximum(Calendar.DAY_OF_MONTH); i++) {

day.add(formatTimeUnit(i));

}

if ((scrollUnits & SCROLL_TYPE.HOUR.value) != SCROLL_TYPE.HOUR.value) {

hour.add(formatTimeUnit(startHour));

} else {

for (int i = startHour; i <= MAX_HOUR; i++) {

hour.add(formatTimeUnit(i));

}

}

if ((scrollUnits & SCROLL_TYPE.MINUTE.value) != SCROLL_TYPE.MINUTE.value) {

minute.add(formatTimeUnit(startMinute));

} else {

for (int i = startMinute; i <= MAX_MINUTE; i++) {

minute.add(formatTimeUnit(i));

}

}

} else if (spanMon) {

year.add(String.valueOf(startYear));

for (int i = startMonth; i <= endMonth; i++) {

month.add(formatTimeUnit(i));

}

for (int i = startDay; i <= startCalendar.getActualMaximum(Calendar.DAY_OF_MONTH); i++) {

day.add(formatTimeUnit(i));

}

if ((scrollUnits & SCROLL_TYPE.HOUR.value) != SCROLL_TYPE.HOUR.value) {

hour.add(formatTimeUnit(startHour));

} else {

for (int i = startHour; i <= MAX_HOUR; i++) {

hour.add(formatTimeUnit(i));

}

}

if ((scrollUnits & SCROLL_TYPE.MINUTE.value) != SCROLL_TYPE.MINUTE.value) {

minute.add(formatTimeUnit(startMinute));

} else {

for (int i = startMinute; i <= MAX_MINUTE; i++) {

minute.add(formatTimeUnit(i));

}

}

} else if (spanDay) {

year.add(String.valueOf(startYear));

month.add(formatTimeUnit(startMonth));

for (int i = startDay; i <= endDay; i++) {

day.add(formatTimeUnit(i));

}

if ((scrollUnits & SCROLL_TYPE.HOUR.value) != SCROLL_TYPE.HOUR.value) {

hour.add(formatTimeUnit(startHour));

} else {

for (int i = startHour; i <= MAX_HOUR; i++) {

hour.add(formatTimeUnit(i));

}

}

if ((scrollUnits & SCROLL_TYPE.MINUTE.value) != SCROLL_TYPE.MINUTE.value) {

minute.add(formatTimeUnit(startMinute));

} else {

for (int i = startMinute; i <= MAX_MINUTE; i++) {

minute.add(formatTimeUnit(i));

}

}

} else if (spanHour) {

year.add(String.valueOf(startYear));

month.add(formatTimeUnit(startMonth));

day.add(formatTimeUnit(startDay));

if ((scrollUnits & SCROLL_TYPE.HOUR.value) != SCROLL_TYPE.HOUR.value) {

hour.add(formatTimeUnit(startHour));

} else {

for (int i = startHour; i <= endHour; i++) {

hour.add(formatTimeUnit(i));

}

}

if ((scrollUnits & SCROLL_TYPE.MINUTE.value) != SCROLL_TYPE.MINUTE.value) {

minute.add(formatTimeUnit(startMinute));

} else {

for (int i = startMinute; i <= MAX_MINUTE; i++) {

minute.add(formatTimeUnit(i));

}

}

} else if (spanMin) {

year.add(String.valueOf(startYear));

month.add(formatTimeUnit(startMonth));

day.add(formatTimeUnit(startDay));

hour.add(formatTimeUnit(startHour));

if ((scrollUnits & SCROLL_TYPE.MINUTE.value) != SCROLL_TYPE.MINUTE.value) {

minute.add(formatTimeUnit(startMinute));

} else {

for (int i = startMinute; i <= endMinute; i++) {

minute.add(formatTimeUnit(i));

}

}

}

loadComponent();

}

/**

* 将“0-9”转换为“00-09”

*/

private String formatTimeUnit(int unit) {

return unit < 10 ? “0” + String.valueOf(unit) : String.valueOf(unit);

}

private void initArrayList() {

if (year == null) year = new ArrayList<>();

if (month == null) month = new ArrayList<>();

if (day == null) day = new ArrayList<>();

if (hour == null) hour = new ArrayList<>();

if (minute == null) minute = new ArrayList<>();

year.clear();

month.clear();

day.clear();

hour.clear();

minute.clear();

}

private void loadComponent() {

year_pv.setData(year);

month_pv.setData(month);

day_pv.setData(day);

hour_pv.setData(hour);

minute_pv.setData(minute);

year_pv.setSelected(0);

month_pv.setSelected(0);

day_pv.setSelected(0);

hour_pv.setSelected(0);

minute_pv.setSelected(0);

executeScroll();

}

private void addListener() {

year_pv.setOnSelectListener(new DatePickerView.onSelectListener() {

@Override

public void onSelect(String text) {

selectedCalender.set(Calendar.YEAR, Integer.parseInt(text));

monthChange();

}

});

month_pv.setOnSelectListener(new DatePickerView.onSelectListener() {

@Override

public void onSelect(String text) {

selectedCalender.set(Calendar.DAY_OF_MONTH, 1);

selectedCalender.set(Calendar.MONTH, Integer.parseInt(text) - 1);

dayChange();

}

});

day_pv.setOnSelectListener(new DatePickerView.onSelectListener() {

@Override

public void onSelect(String text) {

selectedCalender.set(Calendar.DAY_OF_MONTH, Integer.parseInt(text));

hourChange();

}

});

hour_pv.setOnSelectListener(new DatePickerView.onSelectListener() {

@Override

public void onSelect(String text) {

selectedCalender.set(Calendar.HOUR_OF_DAY, Integer.parseInt(text));

minuteChange();

}

});

minute_pv.setOnSelectListener(new DatePickerView.onSelectListener() {

@Override

public void onSelect(String text) {

selectedCalender.set(Calendar.MINUTE, Integer.parseInt(text));

}

});

}

private void monthChange() {

month.clear();

int selectedYear = selectedCalender.get(Calendar.YEAR);

if (selectedYear == startYear) {

for (int i = startMonth; i <= MAX_MONTH; i++) {

month.add(formatTimeUnit(i));

}

} else if (selectedYear == endYear) {

for (int i = 1; i <= endMonth; i++) {

month.add(formatTimeUnit(i));

}

} else {

for (int i = 1; i <= MAX_MONTH; i++) {

month.add(formatTimeUnit(i));

}

}

selectedCalender.set(Calendar.MONTH, Integer.parseInt(month.get(0)) - 1);

month_pv.setData(month);

month_pv.setSelected(0);

executeAnimator(month_pv);

month_pv.postDelayed(new Runnable() {

@Override

public void run() {

dayChange();

}

}, 100);

}

private void dayChange() {

day.clear();

int selectedYear = selectedCalender.get(Calendar.YEAR);

int selectedMonth = selectedCalender.get(Calendar.MONTH) + 1;

if (selectedYear == startYear && selectedMonth == startMonth) {

for (int i = startDay; i <= selectedCalender.getActualMaximum(Calendar.DAY_OF_MONTH); i++) {

day.add(formatTimeUnit(i));

}

} else if (selectedYear == endYear && selectedMonth == endMonth) {

for (int i = 1; i <= endDay; i++) {

day.add(formatTimeUnit(i));

}

} else {

for (int i = 1; i <= selectedCalender.getActualMaximum(Calendar.DAY_OF_MONTH); i++) {

day.add(formatTimeUnit(i));

}

}

selectedCalender.set(Calendar.DAY_OF_MONTH, Integer.parseInt(day.get(0)));

day_pv.setData(day);

day_pv.setSelected(0);

executeAnimator(day_pv);

day_pv.postDelayed(new Runnable() {

@Override

public void run() {

hourChange();

}

}, 100);

}

private void hourChange() {

if ((scrollUnits & SCROLL_TYPE.HOUR.value) == SCROLL_TYPE.HOUR.value) {

hour.clear();

int selectedYear = selectedCalender.get(Calendar.YEAR);

int selectedMonth = selectedCalender.get(Calendar.MONTH) + 1;

int selectedDay = selectedCalender.get(Calendar.DAY_OF_MONTH);

if (selectedYear == startYear && selectedMonth == startMonth && selectedDay == startDay) {

for (int i = startHour; i <= MAX_HOUR; i++) {

hour.add(formatTimeUnit(i));

}

} else if (selectedYear == endYear && selectedMonth == endMonth && selectedDay == endDay) {

for (int i = MIN_HOUR; i <= endHour; i++) {

hour.add(formatTimeUnit(i));

}

} else {

for (int i = MIN_HOUR; i <= MAX_HOUR; i++) {

hour.add(formatTimeUnit(i));

}

}

selectedCalender.set(Calendar.HOUR_OF_DAY, Integer.parseInt(hour.get(0)));

hour_pv.setData(hour);

hour_pv.setSelected(0);

executeAnimator(hour_pv);

}

hour_pv.postDelayed(new Runnable() {

@Override

public void run() {

minuteChange();

}

}, 100);

}

private void minuteChange() {

if ((scrollUnits & SCROLL_TYPE.MINUTE.value) == SCROLL_TYPE.MINUTE.value) {

minute.clear();

int selectedYear = selectedCalender.get(Calendar.YEAR);

int selectedMonth = selectedCalender.get(Calendar.MONTH) + 1;

int selectedDay = selectedCalender.get(Calendar.DAY_OF_MONTH);

int selectedHour = selectedCalender.get(Calendar.HOUR_OF_DAY);

if (selectedYear == startYear && selectedMonth == startMonth && selectedDay == startDay && selectedHour == startHour) {

for (int i = startMinute; i <= MAX_MINUTE; i++) {

minute.add(formatTimeUnit(i));

}

} else if (selectedYear == endYear && selectedMonth == endMonth && selectedDay == endDay && selectedHour == endHour) {

for (int i = MIN_MINUTE; i <= endMinute; i++) {

minute.add(formatTimeUnit(i));

}

} else {

for (int i = MIN_MINUTE; i <= MAX_MINUTE; i++) {

minute.add(formatTimeUnit(i));

}

}

selectedCalender.set(Calendar.MINUTE, Integer.parseInt(minute.get(0)));

minute_pv.setData(minute);

minute_pv.setSelected(0);

executeAnimator(minute_pv);

}

executeScroll();

}

/*设置动画 当滚动的时候*/

private void executeAnimator(View view) {

PropertyValuesHolder pvhX = PropertyValuesHolder.ofFloat(“alpha”, 1f, 0f, 1f);

PropertyValuesHolder pvhY = PropertyValuesHolder.ofFloat(“scaleX”, 1f, 1.3f, 1f);

PropertyValuesHolder pvhZ = PropertyValuesHolder.ofFloat(“scaleY”, 1f, 1.3f, 1f);

ObjectAnimator.ofPropertyValuesHolder(view, pvhX, pvhY, pvhZ).setDuration(200).start();

}

private void executeScroll() {

year_pv.setCanScroll(year.size() > 1);

month_pv.setCanScroll(month.size() > 1);

day_pv.setCanScroll(day.size() > 1);

hour_pv.setCanScroll(hour.size() > 1 && (scrollUnits & SCROLL_TYPE.HOUR.value) == SCROLL_TYPE.HOUR.value);

minute_pv.setCanScroll(minute.size() > 1 && (scrollUnits & SCROLL_TYPE.MINUTE.value) == SCROLL_TYPE.MINUTE.value);

}

private int disScrollUnit(SCROLL_TYPE… scroll_types) {

if (scroll_types == null || scroll_types.length == 0) {

scrollUnits = SCROLL_TYPE.HOUR.value + SCROLL_TYPE.MINUTE.value;

} else {

for (SCROLL_TYPE scroll_type : scroll_types) {

scrollUnits ^= scroll_type.value;

}

}

return scrollUnits;

}

public void show(String time) {

if (canAccess) {

if (isValidDate(time, “yyyy-MM-dd”)) {

if (startCalendar.getTime().getTime() < endCalendar.getTime().getTime()) {

canAccess = true;

initParameter();

initTimer();

addListener();

setSelectedTime(time);

datePickerDialog.show();

}

}else if(isValidDate(time, “yyyy-MM-dd HH:mm”)){

if (startCalendar.getTime().getTime() < endCalendar.getTime().getTime()) {

canAccess = true;

initParameter();

initTimer();

addListener();

setSelectedTime(time);

datePickerDialog.show();

}

}else{

canAccess = false;

}

}

}

/**

* 设置日期控件是否显示时和分

*/

public void showSpecificTime(boolean show) {

if (canAccess) {

if (show) {

disScrollUnit();

hour_pv.setVisibility(View.VISIBLE);

hour_text.setVisibility(View.VISIBLE);

minute_pv.setVisibility(View.VISIBLE);

minute_text.setVisibility(View.VISIBLE);

year_pv.setVisibility(View.GONE);

month_pv.setVisibility(View.GONE);

day_pv.setVisibility(View.GONE);

year_text.setVisibility(View.GONE);

month_text.setVisibility(View.GONE);

day_text.setVisibility(View.GONE);

} else {

disScrollUnit(SCROLL_TYPE.HOUR, SCROLL_TYPE.MINUTE);

hour_pv.setVisibility(View.GONE);

hour_text.setVisibility(View.GONE);

minute_pv.setVisibility(View.GONE);

minute_text.setVisibility(View.GONE);

}

}

}

/**

* 设置日期控件是否可以循环滚动

*/

public void setIsLoop(boolean isLoop) {

if (canAccess) {

this.year_pv.setIsLoop(isLoop);

this.month_pv.setIsLoop(isLoop);

this.day_pv.setIsLoop(isLoop);

this.hour_pv.setIsLoop(isLoop);

this.minute_pv.setIsLoop(isLoop);

}

}

/**

* 设置日期控件默认选中的时间

*/

public void setSelectedTime(String time) {

if (canAccess) {

String[] str = time.split(“ “);

String[] dateStr = str[0].split(“-“);

year_pv.setSelected(dateStr[0]);

selectedCalender.set(Calendar.YEAR, Integer.parseInt(dateStr[0]));

month.clear();

int selectedYear = selectedCalender.get(Calendar.YEAR);

if (selectedYear == startYear) {

for (int i = startMonth; i <= MAX_MONTH; i++) {

month.add(formatTimeUnit(i));

}

} else if (selectedYear == endYear) {

for (int i = 1; i <= endMonth; i++) {

month.add(formatTimeUnit(i));

}

} else {

for (int i = 1; i <= MAX_MONTH; i++) {

month.add(formatTimeUnit(i));

}

}

month_pv.setData(month);

month_pv.setSelected(dateStr[1]);

selectedCalender.set(Calendar.MONTH, Integer.parseInt(dateStr[1]) - 1);

executeAnimator(month_pv);

day.clear();

int selectedMonth = selectedCalender.get(Calendar.MONTH) + 1;

if (selectedYear == startYear && selectedMonth == startMonth) {

for (int i = startDay; i <= selectedCalender.getActualMaximum(Calendar.DAY_OF_MONTH); i++) {

day.add(formatTimeUnit(i));

}

} else if (selectedYear == endYear && selectedMonth == endMonth) {

for (int i = 1; i <= endDay; i++) {

day.add(formatTimeUnit(i));

}

} else {

for (int i = 1; i <= selectedCalender.getActualMaximum(Calendar.DAY_OF_MONTH); i++) {

day.add(formatTimeUnit(i));

}

}

day_pv.setData(day);

day_pv.setSelected(dateStr[2]);

selectedCalender.set(Calendar.DAY_OF_MONTH, Integer.parseInt(dateStr[2]));

executeAnimator(day_pv);

if (str.length == 2) {

String[] timeStr = str[1].split(“:”);

if ((scrollUnits & SCROLL_TYPE.HOUR.value) == SCROLL_TYPE.HOUR.value) {

hour.clear();

int selectedDay = selectedCalender.get(Calendar.DAY_OF_MONTH);

if (selectedYear == startYear && selectedMonth == startMonth && selectedDay == startDay) {

for (int i = startHour; i <= MAX_HOUR; i++) {

hour.add(formatTimeUnit(i));

}

} else if (selectedYear == endYear && selectedMonth == endMonth && selectedDay == endDay) {

for (int i = MIN_HOUR; i <= endHour; i++) {

hour.add(formatTimeUnit(i));

}

} else {

for (int i = MIN_HOUR; i <= MAX_HOUR; i++) {

hour.add(formatTimeUnit(i));

}

}

hour_pv.setData(hour);

hour_pv.setSelected(timeStr[0]);

selectedCalender.set(Calendar.HOUR_OF_DAY, Integer.parseInt(timeStr[0]));

executeAnimator(hour_pv);

}

if ((scrollUnits & SCROLL_TYPE.MINUTE.value) == SCROLL_TYPE.MINUTE.value) {

minute.clear();

int selectedDay = selectedCalender.get(Calendar.DAY_OF_MONTH);

int selectedHour = selectedCalender.get(Calendar.HOUR_OF_DAY);

if (selectedYear == startYear && selectedMonth == startMonth && selectedDay == startDay && selectedHour == startHour) {

for (int i = startMinute; i <= MAX_MINUTE; i++) {

minute.add(formatTimeUnit(i));

}

} else if (selectedYear == endYear && selectedMonth == endMonth && selectedDay == endDay && selectedHour == endHour) {

for (int i = MIN_MINUTE; i <= endMinute; i++) {

minute.add(formatTimeUnit(i));

}

} else {

for (int i = MIN_MINUTE; i <= MAX_MINUTE; i++) {

minute.add(formatTimeUnit(i));

}

}

minute_pv.setData(minute);

minute_pv.setSelected(timeStr[1]);

selectedCalender.set(Calendar.MINUTE, Integer.parseInt(timeStr[1]));

executeAnimator(minute_pv);

}

}

executeScroll();

}

}

private boolean isValidDate(String date, String template) {

boolean convertSuccess = true;

// 指定日期格式

SimpleDateFormat format = new SimpleDateFormat(template, Locale.CHINA);

try {

// 设置lenient为false. 否则SimpleDateFormat会比较宽松地验证日期，比如2015/02/29会被接受，并转换成2015/03/01

format.setLenient(false);

format.parse(date);

} catch (Exception e) {

// 如果throw java.text.ParseException或者NullPointerException，就说明格式不对

convertSuccess = false;

}

return convertSuccess;

}

3.activity中的实现

String timeShow=tvShowTimesAward.getText().toString();

if(timeShow.equals(“请设置时间”)){

SimpleDateFormat sdf = new SimpleDateFormat(“yyyy-MM-dd HH:mm”, Locale.CHINA);

String now = sdf.format(new Date());

customDatePicker3.show(now);

}else{

// 日期格式为yyyy-MM-dd

customDatePicker3.show(“2000-09-08 “+tvShowTimesAward.getText().toString());

}

// 日期格式为yyyy-MM-dd HH:mm

一个完美的时间控件就完成了；

githup项目地址： https://github.com/benyondall/TimePrice.git

[Image 1]: