Android Studio时间选择器的创建方法

<TextView  android:id="@+id/consultation_tv_birthdate"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_alignLeft="@+id/consultation_tv_sex"  android:layout_alignStart="@+id/consultation_tv_sex"  android:layout_alignTop="@+id/consultation_et_birthdate"  android:layout_marginTop="9dp"  android:text="出生日期："  android:textColor="@color/black"  android:textSize="18sp"  android:textStyle="bold" /><EditText  android:id="@+id/consultation_et_birthdate"  android:layout_width="260dp"  android:layout_height="40dp"  android:layout_alignLeft="@+id/consultation_et_sex"  android:layout_alignStart="@+id/consultation_et_sex"  android:layout_below="@+id/consultation_et_sex"  android:layout_marginTop="22dp"  android:background="@drawable/input_bg"  android:focusable="false"  android:ems="10"  android:inputType="textPersonName"  android:paddingLeft="15dp"  android:paddingRight="15dp" /><ImageView  android:id="@+id/consultation_iv_birthdate"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_above="@+id/consultation_et_id_card"  android:layout_alignEnd="@+id/consultation_et_birthdate"  android:layout_alignRight="@+id/consultation_et_birthdate"  android:layout_marginBottom="5dp"  android:layout_marginRight="10dp"  app:srcCompat="@android:drawable/ic_menu_today" />

EditText consultation_et_birthdate;//出生日期：ImageView consultation_iv_birthdate;//出生日期点击

consultation_et_birthdate = (EditText) findViewById(R.id.consultation_et_birthdate);consultation_iv_birthdate = (ImageView) findViewById(R.id.consultation_iv_birthdate);

consultation_iv_birthdate.setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {    showDialog(DATE_DIALOG);  }});

final Calendar ca = Calendar.getInstance();mYear = ca.get(Calendar.YEAR);//年mMonth = ca.get(Calendar.MONTH);//月mDay = ca.get(Calendar.DAY_OF_MONTH);//日

@Overrideprotected Dialog onCreateDialog(int id) {  switch (id) {    case DATE_DIALOG:      return new DatePickerDialog(this, mdateListener, mYear, mMonth, mDay);  }  return null;}

/** * 设置日期 绑定时间 */private DatePickerDialog.OnDateSetListener mdateListener = new DatePickerDialog.OnDateSetListener() {  @Override  public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {    mYear = year;    mMonth = monthOfYear;    mDay = dayOfMonth;    consultation_et_birthdate.setText(new StringBuffer().append(mYear).append("-").append(mMonth + 1).append("-").append(mDay).append(" "));  }};