RegisterActivity.java

package com.pets.activity;

import android.app.ActionBar;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.MenuItem;

import com.example.actionbar.R;

/**
 * 用户注册
 * 
 * @author Administrator
 * 
 */
public class RegisterActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.pets_register);

		ActionBar bar = getActionBar();
		bar.setDisplayHomeAsUpEnabled(true);
		bar.setDisplayShowHomeEnabled(true);

		bar.setTitle("注册");
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		if (item.getItemId() == android.R.id.home) {
			finish();
			return true;
		}
		return super.onOptionsItemSelected(item);
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {

		if (keyCode == KeyEvent.KEYCODE_BACK) {
			finish();
			return true;
		}

		return super.onKeyDown(keyCode, event);
	}
}