我加3菜單項:設置/關於和退出。 正如你在代碼中所看到的,我做了退出按鈕來關閉這個應用程序,並且我想當我按下關於按鈕來打開一個新的活動。我怎麼做?菜單上單擊項事件
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@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;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
} else if (id == R.id.Exit){
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
}
它的工作!非常感謝。 – Alec 2014-11-01 19:49:29