Android腾讯微博客户端开发三:多账号管理的实现

先看看效果。。
列表中的账号是保存在sqlite数据库中的，下方的大图片是显示你选择的默认账号，双击图片就会显示此账号的主页








点击添加账号，将会跳向腾讯的授权页面，这个页面我是放在WebView中的，当授权成功后，腾讯的API将会返回给我们一个验证码，然后返回到我们的账号管理界面。

public class AccountActivity extends ListActivity implements OnItemClickListener,OnItemLongClickListener,OnClickListener{
	
	private final static String TAG="AccountActivity";
	private DataHelper dataHelper;
	private MyWeiboSync weibo;
	private List<UserInfo> userList;
	private ListView listView;
	private ImageView user_default_headicon;
	private LinearLayout account_add_btn_bar;
	private UserInfo currentUser;
	private UserAdapater adapater;

	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.account);
		
		setUpViews();//设置view
		setUpListeners();//设置listenter
		
		registerReceiver(broadcastReceiver, new IntentFilter("com.weibo.caigang.getverifier"));//注册拿到验证码广播接收器.
		
		dataHelper = DataBaseContext.getInstance(getApplicationContext());//获取数据库连接类，用了单例，保证全局只有一个此对象。
		userList = dataHelper.GetUserList(false);
		
		SharedPreferences preferences = getSharedPreferences("default_user",Activity.MODE_PRIVATE);
		String nick = preferences.getString("user_default_nick", "");//取得微博默认登录账号信息
		
		UserInfo user = null;
		
		if(userList!=null&&userList.size()>0){
			if (nick != "") {
				user = dataHelper.getUserByName(nick,userList);//取得微博默认登录账号信息
			}
			if(user == null) {
				user = userList.get(0);
			}
		}
		if(user!=null){
			user_default_headicon.setImageDrawable(user.getUserIcon());
		}
		
		if(userList!=null&&userList.size()>0){
			adapater = new UserAdapater();
			listView.setAdapter(adapater);
			listView.setOnItemClickListener(this);
		}
	}
	
	private void setUpViews(){
		listView = getListView();
		user_default_headicon = (ImageView)findViewById(R.id.user_default_headicon);
		account_add_btn_bar = (LinearLayout)findViewById(R.id.account_add_btn_bar);
	}
	
	private void setUpListeners(){
		user_default_headicon.setOnClickListener(this);
		account_add_btn_bar.setOnClickListener(this);
		listView.setOnItemLongClickListener(this);
	}
	
	
	
	public class UserAdapater extends BaseAdapter{
        @Override
        public int getCount() {
            return userList.size();
        }

        @Override
        public Object getItem(int position) {
            return userList.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			convertView = LayoutInflater.from(getApplicationContext()).inflate(R.layout.account_list_item, null);
			ImageView user_headicon = (ImageView) convertView.findViewById(R.id.user_headicon);
			TextView user_nick = (TextView) convertView.findViewById(R.id.user_nick);
			TextView user_name = (TextView) convertView.findViewById(R.id.user_name);
			UserInfo user = userList.get(position);
			try {
				user_headicon.setImageDrawable(user.getUserIcon());
				user_nick.setText(user.getUserName());
				user_name.setText("@"+user.getUserId());
			} catch (Exception e) {
				e.printStackTrace();
			}
			return convertView;
		}
	}

	@Override
	public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
		currentUser = userList.get(position);
		user_default_headicon.setImageDrawable(currentUser.getUserIcon());
	}

	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.account_add_btn_bar: {
			weibo = WeiboContext.getInstance();//单例，保证整个应用只有一个weibo对象
			weibo.getRequestToken();
			Intent intent = new Intent(AccountActivity.this,AuthorizeActivity.class);
			Bundle bundle = new Bundle();
			bundle.putString("url", weibo.getAuthorizeUrl());
			intent.putExtras(bundle);
			startActivity(intent);//跳转到腾讯的微博授权页面,使用webview来显示
		}
			break;
		case R.id.user_default_headicon: {
			SharedPreferences preferences = getSharedPreferences("default_user", Activity.MODE_PRIVATE);
			SharedPreferences.Editor editor = preferences.edit();
			editor.putString("user_default_nick", currentUser.getUserName());
			editor.putString("user_default_name", currentUser.getUserId());
			editor.commit();
			Intent intent = new Intent(AccountActivity.this, MainActivity.class);
			startActivity(intent);
		}
			break;

		default:
			break;
		}
	}
	
	BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
			if(intent.getAction().equals("com.weibo.caigang.getverifier")){
				weibo = WeiboContext.getInstance();
				Bundle bundle = intent.getExtras();
				String veryfier = bundle.getString("veryfier");//获取从授权页面返回的veryfier
				if(veryfier!=null){
					//unregisterReceiver(broadcastReceiver);
					weibo.getAccessToken(weibo.getTokenKey(), weibo.getTokenSecrect(), veryfier);//取得key和secret,这个key和secret非常重要，调腾讯的API全靠它了，神马新浪的，人人网的都一样的，不过还是有点区别，腾讯的OAuth认证是基于1.0的
					String userInfo = weibo.getUserInfo(weibo.getAccessTokenKey(), weibo.getAccessTokenSecrect());
					try {
						JSONObject data = new JSONObject(userInfo).getJSONObject("data");
						String headUrl = null;
						if(data.getString("head")!=null&&!"".equals(data.getString("head"))){
							headUrl = data.getString("head")+"/100";
						}
						String userId = data.getString("name");
						String userName = data.getString("nick");
						
						UserInfo user = new UserInfo();//生成一个user对象保存到数据库
						user.setUserId(userId);
						user.setUserName(userName);
						user.setToken(weibo.getAccessTokenKey());
						user.setTokenSecret(weibo.getAccessTokenSecrect());
						
						Long insertId = 0L;
						
						if (dataHelper.HaveUserInfo(userId)){//数据库已经存在了次用户
							dataHelper.UpdateUserInfo(userName, ImageUtil.getRoundBitmapFromUrl(headUrl, 15), userId);
							//Toast.makeText(AccountActivity.this, "此用户已存在,如果你用户名或者头像已经改变，那么此操作将同步更新!", Toast.LENGTH_LONG).show();
						}else{
							if(headUrl!=null){
								insertId = dataHelper.SaveUserInfo(user,ImageUtil.getBytesFromUrl(headUrl));
							}else{
								insertId = dataHelper.SaveUserInfo(user,null);
							}
						}
						if(insertId>0L){
							//Toast.makeText(AccountActivity.this, "已经授权成功,将跳转到选择默认的登录用户界面!", Toast.LENGTH_LONG).show();
						}
						Log.d(TAG+"插入数据库的id是", insertId.toString());
						
						userList = dataHelper.GetUserList(false);
						adapater = new UserAdapater();
						adapater.notifyDataSetChanged();//刷新listview
						listView.setAdapter(adapater);
						
					} catch (JSONException e) {
						e.printStackTrace();
					} catch (Exception e) {
						e.printStackTrace();
					}
					Log.e(TAG, userInfo);
				}
				Log.e(TAG, veryfier);
			}
		}
	};


	@Override
	public boolean onItemLongClick(AdapterView<?> arg0, View arg1, final int position,
			long arg3) {
		CharSequence [] items = null;
		items= new CharSequence[]{"删除账号","取消"};
		new AlertDialog.Builder(AccountActivity.this).setTitle("选项").setItems(items,new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
						switch (which) {
						case 0: {
							String userId = userList.get(position).getUserId();
							dataHelper.DelUserInfo(userId);//删除数据库记录
							SharedPreferences preferences = getSharedPreferences("default_user", Activity.MODE_PRIVATE);
							SharedPreferences.Editor editor = preferences.edit();
							if(preferences.getString("user_default_name", "").equals(userId)){
								editor.putString("user_default_nick", "");
								editor.putString("user_default_name", "");
								editor.commit();//清除里面保存的记录SharedPreferences
							}
							userList = dataHelper.GetUserList(false);
							adapater = new UserAdapater();
							adapater.notifyDataSetChanged();//刷新listview
							listView.setAdapter(adapater);
						}
							break;
						case 1: {
						}
							break;
						default:
							break;
						}
			}
		}).show();
		return false;
	}
}

public class AuthorizeActivity extends Activity {
	private static final String TAG = "AuthorizeActivity";

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.webview);
		WebView webView = (WebView) findViewById(R.id.web);
		webView.setWebViewClient(new MyWebViewClient());
		Intent intent = this.getIntent();
		if (!intent.equals(null)) {
			Bundle bundle = intent.getExtras();
			if (bundle != null) {
				if (bundle.containsKey("url")) {
					String url = bundle.getString("url");
					WebSettings webSettings = webView.getSettings();
					webSettings.setJavaScriptEnabled(true);
					webSettings.setSupportZoom(true);
					webView.requestFocus();
					webView.loadUrl(url);
				}
			}
		}
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		if (keyCode == KeyEvent.KEYCODE_BACK) {
			WebView webView = (WebView) findViewById(R.id.web);
			if (webView.canGoBack()) {
				webView.goBack();
				return true;
			}
		}
		return super.onKeyDown(keyCode, event);
	}

	public class MyWebViewClient extends WebViewClient {
		@Override
		public boolean shouldOverrideUrlLoading(WebView view, String url) {
			view.loadUrl(url);
			return true;
		}

		@Override
		public void onPageStarted(WebView view, String url, Bitmap favicon) {
			Pattern p = Pattern.compile("^" + MyWeiboSync.CALLBACK_URL
					+ ".*oauth_verifier=(\\d+)");
			Matcher m = p.matcher(url);
			if (m.find()) {
				Intent intent = new Intent();
				intent.setAction("com.weibo.caigang.getverifier");
				String veryfier = m.group(1);
				intent.putExtra("veryfier", veryfier);
				sendBroadcast(intent);
				finish();
			}
		}
	}
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:background="#b8c0c8" android:layout_width="fill_parent" android:layout_height="fill_parent">
	<RelativeLayout android:id="@+id/account_top" android:background="@drawable/header" android:layout_width="fill_parent" android:layout_height="wrap_content">
	    <TextView android:textSize="22.0sp" android:text="账号管理" android:textColor="#ffffffff" android:ellipsize="middle" android:gravity="center_horizontal" android:id="@+id/account_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:singleLine="true"  android:layout_centerInParent="true" android:layout_alignWithParentIfMissing="true" />
	</RelativeLayout>
	
	<ListView android:id="@id/android:list"  android:background="@drawable/panel_bg" android:layout_marginTop="20.0dip" android:layout_marginLeft="10.0dip" android:layout_marginRight="10.0dip" android:padding="5.0dip" android:layout_below="@id/account_top" android:layout_width="fill_parent" android:cacheColorHint="#00000000"
		android:layout_height="wrap_content" android:layout_weight="1" android:divider="@drawable/list_divider"/>
		
	<RelativeLayout android:id="@+id/account_bottom" android:layout_width="fill_parent" android:layout_height="40.0dip" android:gravity="center" android:layout_alignParentBottom="true">
		<Button android:id="@+id/account_back_btn" android:layout_width="40.0dip" android:drawableTop="@drawable/btn_back_selector" android:background="@drawable/bottom_back_bg"
			android:layout_height="40.0dip"  android:layout_alignParentLeft="true"/>
		<Button android:id="@+id/account_tohome_btn" android:layout_width="40.0dip"
			android:layout_height="40.0dip" android:drawableTop="@drawable/btn_home_selector" android:background="@drawable/bottom_home_bg" android:layout_alignParentRight="true"/>
		<LinearLayout android:layout_marginLeft="35.0dip" android:layout_toRightOf="@id/account_back_btn" android:layout_toLeftOf="@id/account_tohome_btn" android:layout_centerInParent="true" android:orientation="horizontal" android:id="@+id/account_add_btn_bar" android:layout_width="fill_parent" android:layout_height="fill_parent">	
			<TextView android:textSize="16.0dip" android:text="添加账号" android:textColor="@color/bottom_button_text_selector" android:gravity="center" android:background="@drawable/account_add_btn_selector" android:focusable="true" android:layout_width="wrap_content" android:layout_height="wrap_content" />
		</LinearLayout>	
	</RelativeLayout>
	
	<RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center" android:layout_above="@id/account_bottom" android:layout_marginBottom="40.0dip">
		<ImageView 	android:id="@+id/user_default_headicon" android:layout_width="120.0dip" android:layout_height="78.0dip"/>
	</RelativeLayout>
	
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:paddingTop="3.0dip" android:orientation="horizontal" android:background="@drawable/listitem_selector"  android:layout_width="fill_parent" android:layout_height="wrap_content">
	<RelativeLayout android:layout_width="50.0dip" android:layout_height="50.0dip" android:layout_weight="0.0">
		<ImageView android:id="@+id/user_headicon" android:layout_width="45.0dip" android:layout_height="45.0dip" android:scaleType="fitCenter" android:layout_centerInParent="true" />
	</RelativeLayout>
	<RelativeLayout android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="4.0dip" android:layout_weight="1.0">
		<TextView android:id="@+id/user_nick" android:textColor="#000000" android:layout_width="wrap_content" android:layout_height="32.0dip" android:textSize="14.0sp" android:layout_alignParentLeft="true"/>
		<TextView android:id="@+id/user_name" android:layout_marginLeft="6.0dip" android:layout_below="@id/user_nick" android:textColor="#ff000000" android:layout_width="wrap_content" android:layout_height="32.0dip" android:textSize="8.0sp" android:layout_alignParentLeft="true"/>
	</RelativeLayout>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
	<WebView   
		android:id="@+id/web"
		android:layout_height="wrap_content"            
		android:layout_width="wrap_content"  
		/>	
</LinearLayout>