DatePicker、DatePickerDialog的使用

<?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.administrator.calendardialog.MainActivity">

<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="50dp"
android:gravity="center"
android:text=" "/>

<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/text"
android:layout_centerHorizontal="true"
android:text="弹出Google自带的日历"
android:textAllCaps="false"/>

<DatePicker
android:id="@+id/datePicker"

4000
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/button"
android:layout_centerHorizontal="true"/>

</RelativeLayout>

/**
* 一个Google自带的日历(高版本、低版本显示效果不一致)
*/
public class MainActivity extends Activity {
//使用注解
@InjectView(R.id.button)
Button mButton;
@InjectView(R.id.datePicker)
DatePicker mDatePicker;
@InjectView(R.id.text)
TextView mText;
private DatePickerDialog pickerDialog;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.inject(this);
/**
* 初始化年月日
*/
mDatePicker.updateDate(2015, 3, 10);// 参数1.年 2.月 3.日
mDatePicker.setEnabled(true); // 设置组件是否可用
chooseData();
}

@OnClick(R.id.button)
public void onClick(View view) {
switch (view.getId()) {
case R.id.button://弹出对话框选择日期
dialogCalend();
break;
}
}

//选择日期
private void chooseData() {
// 给DatePicker加监听
mDatePicker.init(mDatePicker.getYear(), mDatePicker.getMonth(), mDatePicker.getDayOfMonth(),
new DatePicker.OnDateChangedListener() {
public void onDateChanged(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
String datat = mDatePicker.getYear() + "年" + (mDatePicker.getMonth() + 1) + "月" + mDatePicker.getDayOfMonth() + "日";
Toast.makeText(MainActivity.this, "日期是" + datat, Toast.LENGTH_SHORT).show();
mText.setText(datat);
}
});
}

//弹出对话框选择日期
private void dialogCalend() {
Calendar calendar = Calendar.getInstance();
pickerDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker datePicker, int i, int i1, int i2) {
String dates = i + "年" + (i1 + 1) + "月" + i2 + "日";
Toast.makeText(MainActivity.this, "选择的日期是" + dates, Toast.LENGTH_SHORT).show();
mText.setText(dates);
}

}, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));
pickerDialog.show();//显示
}
}