public class LoginActivity extends ActionBarActivity {
    public static final String HOST = "192.168.1.100";    // 主机ip
    public static final int PORT = 5222;            // 对应的端口号
    public static final String SERVICENAME = "itheima.com";
    private TextView mEtUserName;
    private TextView mEtPassWord;
    private Button mBtnLogin;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        initView();
        initListener();
    }
    private void initListener() {
        mBtnLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final String userName = mEtUserName.getText().toString();
                final String passWord = mEtPassWord.getText().toString();
                // 判断用户名是否为空
                if (TextUtils.isEmpty(userName)) {// 用户名为空，系统自带的textview的属性，弹出悬浮窗提示
                    mEtUserName.setError("用户名不能为空");
                    return;
                }
                // 判断密码是否为空
                if (TextUtils.isEmpty(passWord)) {// 用户名为空
                    mEtPassWord.setError("密码不能为空");
                    return;
                }
                ThreadUtils.runInThread(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            // 1.创建连接配置对象
                            ConnectionConfiguration config = new ConnectionConfiguration(HOST, PORT);
                            // 额外的配置(方面我们开发,上线的时候,可以改回来)
                            config.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);// 明文传输
                            config.setDebuggerEnabled(true);// 开启调试模式,方便我们查看具体发送的内容
                            // 2.开始创建连接对象
                            XMPPConnection conn = new XMPPConnection(config);
                            // 开始连接
                            conn.connect();
                            // 连接成功了
                            // 3.开始登录
                            conn.login(userName, passWord);
                            // 已经成功成功
                            ToastUtils.showToastSafe(LoginActivity.this, "登录成功");
                            finish();
                            // 跳到主界面
                            Intent intent = new Intent(LoginActivity.this, MainActivity.class);
                            startActivity(intent);
                            // 需要保存连接对象
                            IMService.conn = conn;
                            //启动IMService
                            Intent service = new Intent(LoginActivity.this, IMService.class);
                            startService(service);
                        } catch (XMPPException e) {
                            e.printStackTrace();
                            ToastUtils.showToastSafe(LoginActivity.this, "登录失败");
                        }
                    }
                });
            }
        });
    }
    private void initView() {
        mEtUserName = (TextView) findViewById(R.id.et_username);
        mEtPassWord = (TextView) findViewById(R.id.et_password);
        mBtnLogin = (Button) findViewById(R.id.btn_login);
    }
}

public class MainActivity extends ActionBarActivity {
	@InjectView(R.id.main_tv_title)
	TextView				mMainTvTitle;
	@InjectView(R.id.main_viewpager)
	ViewPager				mMainViewpager;
	@InjectView(R.id.main_bottom)
	LinearLayout			mMainBottom;
	// xutils viewutils 注解方式去找控件
	// viewutils httpUitls dbutils bitmaputils
	//
	private List<Fragment>	mFragments	= new ArrayList<Fragment>();
	private ToolBarUtil		mToolBarUtil;
	private String[]		mToolBarTitleArr;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		ButterKnife.inject(this);
		initData();
		initListener();
	}
	private void initListener() {
		mMainViewpager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
			@Override
			public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
			}
			@Override
			public void onPageSelected(int position) {
				// 修改颜色
				mToolBarUtil.changeColor(position);
				// 修改title
				mMainTvTitle.setText(mToolBarTitleArr[position]);
			}
			@Override
			public void onPageScrollStateChanged(int state) {
			}
		});
		mToolBarUtil.setOnToolBarClickListener(new ToolBarUtil.OnToolBarClickListener() {
			@Override
			public void onToolBarClick(int position) {
				mMainViewpager.setCurrentItem(position);
			}
		});
	}
	private void initData() {
		// viewPager-->view-->pagerAdapter
		// viewPager-->fragment-->fragmentPagerAdapter-->fragment数量比较少
		// viewPager-->fragment-->fragmentStatePagerAdapter
		// 添加fragment到集合中
		mFragments.add(new SessionFragment());
		mFragments.add(new ContactsFragment());
		mMainViewpager.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));
		// 底部按钮
		mToolBarUtil = new ToolBarUtil();
		// 文字内容
		mToolBarTitleArr = new String[] { "会话", "联系人" };
		// 图标内容
		int[] iconArr = { R.drawable.selector_meassage, R.drawable.selector_selfinfo };
		mToolBarUtil.createToolBar(mMainBottom, mToolBarTitleArr, iconArr);
		// 设置默认选中会话
		mToolBarUtil.changeColor(0);
	}
	class MyPagerAdapter extends FragmentPagerAdapter {
		public MyPagerAdapter(FragmentManager fm) {
			super(fm);
		}
		@Override
		public Fragment getItem(int position) {
			return mFragments.get(position);
		}
		@Override
		public int getCount() {
			return 2;
		}
	}
}