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;
}
}

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