public TimePickerDialog(Context context, OnTimeSetListener listener, int hourOfDay, int minute, boolean is24HourView)

public DatePickerDialog(Context context, OnDateSetListener callBack, int year, int monthOfYear, int dayOfMonth)

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
  tools:context="com.example.testdemo.TestActivity">

  <TextView
    android:layout_centerInParent="true"
    android:textSize="20sp"
    android:id="@+id/time_text"
    android:text="点此选择时间"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

</RelativeLayout>

public class TestActivity extends AppCompatActivity {

  private TextView timeText;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_test);
    timeText = (TextView) findViewById(R.id.time_text);
    //为TextView设置点击事件
    timeText.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        //将timeText传入用于显示所选择的时间
        showDialogPick((TextView) v);
      }
    });
  }
  //将两个选择时间的dialog放在该函数中
  private void showDialogPick(final TextView timeText) {
    final StringBuffer time = new StringBuffer();
    //获取Calendar对象，用于获取当前时间
    final Calendar calendar = Calendar.getInstance();
    int year = calendar.get(Calendar.YEAR);
    int month = calendar.get(Calendar.MONTH);
    int day = calendar.get(Calendar.DAY_OF_MONTH);
    int hour = calendar.get(Calendar.HOUR_OF_DAY);
    int minute = calendar.get(Calendar.MINUTE);
    //实例化TimePickerDialog对象
    final TimePickerDialog timePickerDialog = new TimePickerDialog(TestActivity.this, new TimePickerDialog.OnTimeSetListener() {
      //选择完时间后会调用该回调函数
      @Override
      public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
        time.append(" " + hourOfDay + ":" + minute);
        //设置TextView显示最终选择的时间
        timeText.setText(time);
      }
    }, hour, minute, true);
    //实例化DatePickerDialog对象
    DatePickerDialog datePickerDialog = new DatePickerDialog(TestActivity.this, new DatePickerDialog.OnDateSetListener() {
      //选择完日期后会调用该回调函数
      @Override
      public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        //因为monthOfYear会比实际月份少一月所以这边要加1
        time.append(year + "-" + (monthOfYear+1) + "-" + dayOfMonth);
        //选择完日期后弹出选择时间对话框
        timePickerDialog.show();
      }
    }, year, month, day);
    //弹出选择日期对话框
    datePickerDialog.show();
  }

}

public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{
  private String date;
  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
    //得到Calendar类实例，用于获取当前时间
    Calendar calendar = Calendar.getInstance();
    int year = calendar.get(Calendar.YEAR);
    int month = calendar.get(Calendar.MONTH);
    int day = calendar.get(Calendar.DAY_OF_MONTH);
    //返回DatePickerDialog对象
    //因为实现了OnDateSetListener接口，所以第二个参数直接传入this
    return new DatePickerDialog(getActivity(), this, year, month, day);
  }

  //实现OnDateSetListener接口的onDateSet()方法
  @Override
  public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
    //这样子写就将选择时间的fragment和选择日期的fragment完全绑定在一起
    //使用的时候只需直接调用DatePickerFragment的show()方法
    //即可选择完日期后选择时间
    TimePickerFragment timePicker = new TimePickerFragment();
    timePicker.show(getFragmentManager(), "time_picker");
    //将用户选择的日期传到TimePickerFragment
    date = year + "年" + (monthOfYear+1) + "月" + dayOfMonth + "日";
    timePicker.setTime(date);
  }
}

//实现OnTimeSetListener接口
public class TimePickerFragment extends DialogFragment implements TimePickerDialog.OnTimeSetListener{
  private String time = "";
  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
    //新建日历类用于获取当前时间
    Calendar calendar = Calendar.getInstance();
    int hour = calendar.get(Calendar.HOUR_OF_DAY);
    int minute = calendar.get(Calendar.MINUTE);
    //返回TimePickerDialog对象
    //因为实现了OnTimeSetListener接口，所以第二个参数直接传入this
    return new TimePickerDialog(getActivity(), this, hour, minute, true);
  }

  //实现OnTimeSetListener的onTimeSet方法
  @Override
  public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
    //判断activity是否是DataCallBack的一个实例
    if(getActivity() instanceof DataCallBack){
      //将activity强转为DataCallBack
      DataCallBack dataCallBack = (DataCallBack) getActivity();
      time = time + hourOfDay + "点" + minute + "分";
      //调用activity的getData方法将数据传回activity显示
      dataCallBack.getData(time);
    }
  }

  public void setTime(String date){
    time += date;
  }

}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
  tools:context="com.example.testdemo.TestActivityActivity">

  <TextView
    android:id="@+id/time_text"
    android:layout_centerInParent="true"
    android:text="点此选择时间"
    android:textSize="20sp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

</RelativeLayout>

//实现DataCallBack接口，实现与Fragment的通信
public class TestActivityActivity extends AppCompatActivity implements DataCallBack{

  TextView timeText;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_test2);
    timeText = (TextView) findViewById(R.id.time_text);
    //为timeText设置点击事件
    timeText.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        //实例化对象
        DatePickerFragment datePickerFragment = new DatePickerFragment();
        //调用show方法弹出对话框
        // 第一个参数为FragmentManager对象
        // 第二个为调用该方法的fragment的标签
        datePickerFragment.show(getFragmentManager(), "date_picker");
      }
    });
  }


  //实现DataCallBack的getData方法
  @Override
  public void getData(String data) {
    //data即为fragment调用该函数传回的日期时间
    timeText.setText(data);
  }
}

final TimePickerDialog timePickerDialog = new TimePickerDialog(TestActivity.this, new TimePickerDialog.OnTimeSetListener() {
      //选择完时间后会调用该回调函数
      @Override
      public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
        time.append(" " + hourOfDay + ":" + minute);
        //设置TextView显示最终选择的时间
        timeText.setText(time);
      }
    }, hour, minute, true){
     // 重写onStop()
      @Override
      protected void onStop() {

      }
    };
    //实例化DatePickerDialog对象
    DatePickerDialog datePickerDialog = new DatePickerDialog(TestActivity.this, new DatePickerDialog.OnDateSetListener() {
      //选择完日期后会调用该回调函数
      @Override
      public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        //因为monthOfYear会比实际月份少一月所以这边要加1
        time.append(year + "-" + (monthOfYear+1) + "-" + dayOfMonth);
        //选择完日期后弹出选择时间对话框
        timePickerDialog.show();
      }
    }, year, month, day){
      //重写onstop
      @Override
      protected void onStop() {
      }
    };

return new DatePickerDialog(getActivity(), this, year, month, day){
      // 重写onStop
      @Override
      protected void onStop() {
      }
    };

 return new TimePickerDialog(getActivity(), this, hour, minute, true){
      //重写onStop
      @Override
      protected void onStop() {
      }
    };