转化作当前的日期和时间

转化为当前的日期和时间
xml页面


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <EditText
        android:id="@+id/editText1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"  />

    <Button
        android:id="@+id/btn01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="日期" />
    <Button
        android:id="@+id/btn02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="时间" />

</LinearLayout>


java 代码


public  class NowTimeActivity extends Activity implements OnClickListener,OnKeyListener{
    private EditText et01;
    private Button btn01;
    private Button btn02;
    public void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        et01 = (EditText)findViewById(R.id.editText1);
        btn01 = (Button)findViewById(R.id.btn01);
        btn02 = (Button)findViewById(R.id.btn02);

        et01.setOnKeyListener(this);
        btn01.setOnClickListener(this);
        btn02.setOnClickListener(this);

    }

    public void onClick(View v){
       switch(v.getId()){
       case R.id.btn01:
           SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
           String showDate = sdf.format(new Date());
           et01.setText(showDate);
           break;
       case R.id.btn02:
           SimpleDateFormat sdf2 = new SimpleDateFormat("HH:mm:SS");
           String showDate2 = sdf.format(new Date());
           et01.setText(showDate2);
           break;
       default:
           break;
       }
    }

    public boolean onKey(View v,int keyCode, KeyEvent event){
       switch(event.getKeyCode()){
       case KeyEvent.KEYCODE_C:
           et01.setText("C键被按下");
           break;
       default:
           break;
       }
       return true;
    }
}