[移动开发]Android之日期/时间选择对话框

日期/时间选择对话框（DatePickerDialog和TimePickerDialog）的使用

<LinearLayout 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:orientation="vertical" >
    
    <EditText 
        android:id="@+id/edit"
        android:layout_width="200dp"
        android:layout_height="wrap_content" />
 
    <Button
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:text="日期选择器" />
 
    <Button
        android:id="@+id/button2"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:text="时间选择器" />
 
</LinearLayout>

public class MainActivity extends Activity {
	// 实例化控件
	private Button dateButton;
	private Button timeButton;
	private EditText editText;
	private DatePickerDialog dateDialog;
	private TimePickerDialog timeDialog;
	private int year, monthOfYear, dayOfMonth, hourOfDay, minute;
 
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		// 通过findViewById找到控件
		dateButton = (Button) findViewById(R.id.button1);
		timeButton = (Button) findViewById(R.id.button2);
		editText = (EditText) findViewById(R.id.edit);
		// 通过Calendar对象来获取年、月、日、时、分的信息
		Calendar calendar = Calendar.getInstance();
		year = calendar.get(calendar.YEAR);
		monthOfYear = calendar.get(calendar.MONTH);
		dayOfMonth = calendar.get(calendar.DAY_OF_MONTH);
		hourOfDay = calendar.get(calendar.HOUR_OF_DAY);
		minute = calendar.get(calendar.MINUTE);
		/*
		 * 实例化DatePickerDialog
		 */
		dateDialog = new DatePickerDialog(this, new OnDateSetListener() {
 
			@Override
			public void onDateSet(DatePicker arg0, int year, int monthOfYear,
					int dayOfMonth) {
				// 把获取的日期显示在文本框内，月份从0开始计数，所以要加1
				String text = year + "-" + (monthOfYear + 1) + "-" + dayOfMonth;
				editText.setText(text);
			}
		}, year, monthOfYear, dayOfMonth); // 后面的三个参数对应于上面的年、月、日
		/**
		 * 对日期选择器按钮设置监听事件
		 */
		dateButton.setOnClickListener(new View.OnClickListener() {
 
			@Override
			public void onClick(View arg0) {
				// 点击日期选择器按钮时显示出日期对话框
				dateDialog.show();
			}
		});
		/*
		 * 实例化TimePickerDialog
		 */
		timeDialog = new TimePickerDialog(this, new OnTimeSetListener() {
 
			@Override
			public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, hourOfDay + ":" + minute,
						Toast.LENGTH_LONG).show();
			}
		}, hourOfDay, minute, true); // 最后一个参数设置是否为24小时制
		/**
		 * 对时间选择器按钮设置监听事件
		 */
		timeButton.setOnClickListener(new View.OnClickListener() {
 
			@Override
			public void onClick(View arg0) {
				// 点击时间选择器按钮时显示出时间对话框
				timeDialog.show();
			}
		});
	}
}