android笔记---LoginActivity extends FinalActivity

package com.fuda.activity;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Type;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.client.CookieStore;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.BasicCookieStore;
import org.jarjar.apache.commons.codec.digest.DigestUtils;
import org.json.JSONObject;

import net.tsz.afinal.FinalActivity;
import net.tsz.afinal.FinalHttp;
import net.tsz.afinal.annotation.view.ViewInject;
import net.tsz.afinal.http.AjaxCallBack;
import net.tsz.afinal.http.AjaxParams;
import android.app.Activity;
import android.app.Dialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.graphics.Color;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Parcelable;
import android.text.Editable;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.fuda.AppContext;
import com.fuda.R;
import com.fuda.Unity;
import com.fuda.model.StudentInfoModel;
import com.fuda.ui.MessageBar;
import com.fuda.ui.MessageBar.OnMessageClickListener;
import com.fuda.ui.MyCommonUtils;
import com.fuda.ui.MyDialog;
import com.fuda.ui.SearchTextView;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonObject;
import com.google.gson.reflect.TypeToken;
import com.student.utils.DateDeserializer;

public class LoginActivity extends FinalActivity {

    @ViewInject(id = R.id.account)
    private SearchTextView accountV;
    @ViewInject(id = R.id.password)
    private SearchTextView passwordV;
    @ViewInject(id = R.id.login_btn)
    private Button login_btn;
    private CookieStore cookieStore;
    private MyAsyncTask myAsyncTask;
    private Dialog dialog;
    private SharedPreferences p;
    private MessageBar mMessageBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.home_login);

        initView();
    }
    
    OnMessageClickListener messageListener = new OnMessageClickListener() {
        @Override
        public void onMessageClick(Parcelable token) {
            // TODO Auto-generated method stub
        }
    };
    
    public void showMessage(String message) {
        mMessageBar.show(message, "关闭", R.drawable.ic_messagebar_undo, new Bundle());
    }

    private void initView() {
        mMessageBar = new MessageBar(this);
        mMessageBar.setOnClickListener(messageListener);
        login_btn.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                String account = accountV.getText().toString();
                String password = passwordV.getText().toString();
                if (account.equals("")) {
                    showMessage(getResources().getString(R.string.gd_login_username_empty_label));
                    return;
                } else if (password.equals("")) {
                    showMessage(getResources().getString(R.string.gd_login_password_empty_label));
                    return;
                }
                //安全性判断 
                if (myAsyncTask != null && myAsyncTask.getStatus() != AsyncTask.Status.FINISHED)
                    myAsyncTask.cancel(true);
                myAsyncTask = new MyAsyncTask();
                myAsyncTask.execute();
            }
        });
    }

    class MyAsyncTask extends AsyncTask<Object, Void, Object> {
        @Override
        protected void onPreExecute() {
            Message msg = new Message();
            msg.what = 2;
            uiHandler.sendMessage(msg);
            super.onPreExecute();
        }

        @Override
        protected Object doInBackground(Object... arg0) {
            Object obj = null;
            if (!isCancelled()) {
                FinalHttp finalHttp = new FinalHttp(getBaseContext());
                AjaxParams ap = new AjaxParams();
                StringBuffer buffer = new StringBuffer();
                //把所需的参数集中起来
                buffer.append("{\"LoginName\":\"" + accountV.getText().toString() + "\",\"Password\":\"" + new DigestUtils().sha512Hex(passwordV.getText().toString())
                        + "\",\"UniversityCode\":\"10386\",\"LoginWay\":\"Number\"}");
                ap.put("data", buffer.toString());
                cookieStore = new BasicCookieStore();
                finalHttp.configCookieStore(cookieStore);
                obj = finalHttp.postSync(Unity.loginAPI, ap);
            }
            return obj;
        }

        //doInBackground执行之后的结果obj就是onPostExecute的参数
        @Override
        protected void onPostExecute(Object result) {
            Message msg = new Message();
            msg.obj = result;
            msg.what = 1;
            uiHandler.sendMessage(msg);
            super.onPostExecute(result);
        }

        @Override
        protected void onCancelled() {
            super.onCancelled();
        }

        private Handler uiHandler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
                switch (msg.what) {
                case 1:
                    if (dialog != null) dialog.dismiss();
                    try {
                        //把字符串转成json
                        JSONObject jo = new JSONObject(msg.obj.toString());
                        //返回其中的Success字段
                        String flag = jo.get("Success").toString();
                        if ("true".equals(flag)) {
//                            p.edit().putString("account", accountV.getText().toString()).commit();
//                            p.edit().putString("password", passwordV.getText().toString()).commit();
                            
                            //http://blog.csdn.net/xinhu_li0104/article/details/8700371
                            Gson gson = new GsonBuilder().create();
                            //讲json字符串，转化成StudentInfoModel类型的对象
                            StudentInfoModel studentInfoModel = gson.fromJson(jo.optString("ReturnObj").toString(), StudentInfoModel.class);
                            //保存cookie和用户信息
                            getContext().setCookieStore(cookieStore);
                            getContext().setStudentInfoModel(studentInfoModel);
                            Intent intent = new Intent(LoginActivity.this, HomeTabHostActivity.class);
                            intent.putExtra("studentInfoModel", studentInfoModel);
                            startActivity(intent);
                        } else {
                            showMessage(jo.optString("Msg"));
                        }
                    } catch (Exception e) {
                        showMessage(getResources().getString(R.string.forecast_error_check_hint));
                        e.printStackTrace();
                    }
                    break;
                case 2:
                    dialog=new MyDialog(LoginActivity.this).showProgressDialog(null, myAsyncTask);
                    break;
                default:
                    break;
                }
                super.handleMessage(msg);
            }
        };
    }
    

    public AppContext getContext() {
        return ((AppContext) super.getApplicationContext());
    }


    @Override
    protected void onDestroy() {
        if (myAsyncTask != null && myAsyncTask.getStatus() != AsyncTask.Status.FINISHED)
            myAsyncTask.cancel(true);
        super.onDestroy();
    }
    

    @Override
    protected void onResume() {
        super.onResume();
//        String account = null;
//        String password = null;
//        p = getSharedPreferences("userinfo", MODE_WORLD_READABLE);
//        account = p.getString("account", "");
//        password = p.getString("password", "");
//        if (account != "" && password != "") {
//            accountV.setText(account);
//            passwordV.setText(password);
//        }
    }

    @Override
    protected void onStart() {
        super.onStart();
    }


}