痞客興的部落格

package com.example.keyboardlistener;

import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;
import android.view.Menu;

public class MainActivity extends Activity {
TextView tv;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout ll = new LinearLayout(this);
ll.setOrientation(LinearLayout.VERTICAL);
setContentView(ll);

tv = new TextView(this);
tv.setText("我的背好癢!!幫我抓抓。");

ll.addView(tv);
}

public boolean onKeyDown(int keycode, KeyEvent e)
{
String str;
switch(keycode)
{
case KeyEvent.KEYCODE_DPAD_UP:
str = "沒抓到,有點太上面了"; break;
case KeyEvent.KEYCODE_DPAD_DOWN:
str = "沒抓到,有點太下面了"; break;
case KeyEvent.KEYCODE_DPAD_LEFT:
str = "沒抓到,有點太左邊了"; break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
str = "沒抓到,有點太右邊了"; break;
case KeyEvent.KEYCODE_DPAD_CENTER:
str = "沒抓到,怎麼一直抓中間"; break;
default:
str = "其他的地方別亂抓";
}
tv.setText(str + "。");

return true;
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}