LoginActivity.java :  » UnTagged » smartshop-project » com » appspot » smartshop » ui » user » Android Open Source

package com.appspot.smartshop.ui.user;

import java.util.List;

import org.json.JSONException;
import org.json.JSONObject;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Display;
import android.view.View;
import android.view.WindowManager;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.appspot.smartshop.R;
import com.appspot.smartshop.SmartShopActivity;
import com.appspot.smartshop.dom.SmartshopNotification;
import com.appspot.smartshop.dom.UserInfo;
import com.appspot.smartshop.ui.BaseUIActivity;
import com.appspot.smartshop.utils.DataLoader;
import com.appspot.smartshop.utils.Global;
import com.appspot.smartshop.utils.JSONParser;
import com.appspot.smartshop.utils.RestClient;
import com.appspot.smartshop.utils.SimpleAsyncTask;
import com.appspot.smartshop.utils.StringUtils;
import com.appspot.smartshop.utils.URLConstant;
import com.appspot.smartshop.utils.Utils;

public class LoginActivity extends BaseUIActivity {
  public static final String TAG = "[LoginActivity]";
  public static final String PARAM_NOFITICATION = "{username:\"%s\",type_id:%d}";
  private TextView lblUsername;
  private EditText txtUsername;
  private TextView lblPassword;
  private EditText txtPassword;
  private String lastActivity;
  public static String charTicker = "Bn c %d thng bo mi";
  public List<SmartshopNotification> notifications;

  @Override
  protected void onCreatePre() {
    setContentView(R.layout.login);
  }

  @Override
  protected void onCreatePost(Bundle savedInstanceState) {
    Display display = ((WindowManager) getSystemService(Context.WINDOW_SERVICE))
        .getDefaultDisplay();
    int width = display.getWidth();
    int labelWidth = (int) (width * 0.25);
    int textWidth = width - labelWidth;

    // set up textviews
    lblUsername = (TextView) findViewById(R.id.lblUsername);
    lblUsername.setWidth(labelWidth);
    txtUsername = (EditText) findViewById(R.id.txtUsername);
    txtUsername.setWidth(textWidth);

    lblPassword = (TextView) findViewById(R.id.lblPassword);
    lblPassword.setWidth(labelWidth);
    txtPassword = (EditText) findViewById(R.id.txtPassword);
    txtPassword.setWidth(textWidth);

    // butons
    Button btnLogin = (Button) findViewById(R.id.btnLogin);
    btnLogin.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        login();
      }
    });

    Button btnCancel = (Button) findViewById(R.id.btnCancel);
    btnCancel.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        finish();
      }
    });

    lastActivity = getIntent().getStringExtra(Global.LOGIN_LAST_ACTIVITY);
  }

  private SimpleAsyncTask task;

  protected void login() {
    String username = txtUsername.getText().toString();
    String pass = txtPassword.getText().toString();
    if (username == null || username.trim().equals("")
        || pass == null || pass.trim().equals("")) {
      Toast.makeText(this, "in tn ng nhp v mt khu", Toast.LENGTH_SHORT).show();
      return;
    }
    
    final String userkey = Utils.getAlphaNumeric(20);
    final String url = String.format(URLConstant.LOGIN, username, Utils
        .getMD5(pass), userkey);

    task = new SimpleAsyncTask(getString(R.string.loading_when_login), this, new DataLoader() {
            
      public void updateUI() {
      }

      @Override
      public void loadData() {
        RestClient.getData(url, new JSONParser() {

          @Override
          public void onSuccess(JSONObject json) throws JSONException {
            Global.isLogin = true;
            Global.userInfo = Global.gsonDateWithoutHour.fromJson(json.get("userinfo").toString(), UserInfo.class);
            Log.e(TAG, "[CURRENT SESSION] " + Global.userInfo.sessionId);
            
            if (StringUtils.isEmptyOrNull(lastActivity)){
              Intent intent = new Intent(LoginActivity.this, SmartShopActivity.class);
              intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
              startActivity(intent);
            }else{
              if (lastActivity.equals(Global.VIEW_PROFILE_ACTIVITY)){
                Intent intent = new Intent(LoginActivity.this, ViewUserProfileActivity.class);
                intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(intent);
              }
            }
          }

          @Override
          public void onFailure(String message) {
            task.hasData = false;
            task.message = message;
            task.cancel(true);
          }
        });
      }
    });

    task.execute();
  }

  public void generateNotification(int numOfNewNotification,
      int notificatioinID, CharSequence charTitle,
      CharSequence charContent) {
    NotificationManager myNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    long when = System.currentTimeMillis();
    charTicker = String.format(charTicker, numOfNewNotification);
    Notification notification = new Notification(
        android.R.drawable.btn_star_big_on, charTicker, when);
    Context context = getApplicationContext();
    Intent notificationIntent = new Intent(this, SmartShopActivity.class).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
        notificationIntent, 0);
    notification.setLatestEventInfo(context, charTitle, charContent,
        contentIntent);
    myNotificationManager.notify(notificatioinID, notification);
  }

}