Android日期时间选择器DatePicker、TimePicker日期时间改变事件响应（Android学习笔记）

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/LinearLayout1"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical"

    tools:context=".MainActivity" >

    <EditText

        android:id="@+id/input"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:inputType="datetime" />

    <LinearLayout

        android:id="@+id/LinearLayout2"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:orientation="horizontal" >

        <DatePicker

            android:id="@+id/mydp"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content" />

        <TimePicker

            android:id="@+id/mytp"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content" />

    </LinearLayout>

</LinearLayout>

MainActivity.java

public class MainActivity extends Activity {

    private EditText myInput=null;

    private TimePicker mytp=null;

    private DatePicker mydp=null;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        this.myInput=(EditText)super.findViewById(R.id.input);

        this.mytp=(TimePicker)super.findViewById(R.id.mytp);

        this.mydp=(DatePicker)super.findViewById(R.id.mydp);

        this.mytp.setIs24HourView(true);//设置为24小时制

        this.mytp.setOnTimeChangedListener(new OnTimeChangedListenerImpl());//添加时间变更响应事件

        this.mydp.init(this.mydp.getYear(),

                this.mydp.getMonth(),

                this.mydp.getDayOfMonth(),

                new OnDateChangeLinstenerImpl());//添加日期变更响应事件

        this.setDateTime(); //设置初始的日期事件

    }

    private class OnTimeChangedListenerImpl implements OnTimeChangedListener{

        @Override

        public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {

            // 当时间改变时触发的事件

            setDateTime();

        }

    }

    private class OnDateChangeLinstenerImpl implements OnDateChangedListener{

        @Override

        public void onDateChanged(DatePicker view, int year, int monthOfYear,

                int dayOfMonth) {

            // 当日期改变时触发的事件

            setDateTime();

        }

    }

    public void setDateTime(){

        this.myInput.setText(this.mydp.getYear()+"-"+(this.mydp.getMonth()+1)+"-"+this.mydp.getDayOfMonth()+" "+this.mytp.getCurrentHour()+":"+this.mytp.getCurrentMinute());

    }