LoginActivity.java

package com.athena.asm;

import android.app.ProgressDialog;
import android.content.Intent;
import android.content.res.Configuration;
import android.os.Bundle;
import android.os.Handler;
import android.text.method.LinkMovementMethod;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.athena.asm.util.SmthSupport;
import com.athena.asm.util.StringUtility;

public class LoginActivity extends SherlockFragmentActivity implements
		OnClickListener {
	private EditText m_userNameEditText;
	private EditText m_passwordEditText;

	private SmthSupport m_smthSupport;

	private Handler m_handler = new Handler();

	@Override
	public void onCreate(Bundle savedInstanceState) {
		setTheme(R.style.Theme_Sherlock_Light);
		super.onCreate(savedInstanceState);
		// requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.login);

		m_smthSupport = SmthSupport.getInstance();

		String userName = aSMApplication.getCurrentApplication().getAutoUserName();
		String password = aSMApplication.getCurrentApplication().getAutoPassword();

		m_userNameEditText = (EditText) findViewById(R.id.username_edit);
		m_userNameEditText.setText(userName);
		m_passwordEditText = (EditText) findViewById(R.id.password_edit);
		m_passwordEditText.setText(password);

		TextView registerLink = (TextView) findViewById(R.id.register_link);
		registerLink.setMovementMethod(LinkMovementMethod.getInstance());

		TextView asmHelpLink = (TextView) findViewById(R.id.asm_help_link);
		asmHelpLink.setMovementMethod(LinkMovementMethod.getInstance());

		Button button = (Button) findViewById(R.id.signin_button);
		button.setOnClickListener(this);

		Button gbutton = (Button) findViewById(R.id.guest_button);
		gbutton.setOnClickListener(this);
		
		setRequestedOrientation(aSMApplication.ORIENTATION);
	}

	@Override
	public void onConfigurationChanged(Configuration newConfig) {
		// do nothing to stop onCreated
		super.onConfigurationChanged(newConfig);
	}

	public void showSuccessToast() {
		m_handler.post(new Runnable() {
			public void run() {
				Toast.makeText(getApplicationContext(), "登录成功.",
						Toast.LENGTH_SHORT).show();
			}
		});
	}

	public void showAuthenticationFailedToast() {
		m_handler.post(new Runnable() {
			@Override
			public void run() {
				Toast.makeText(getApplicationContext(), "用户名或密码错.",
						Toast.LENGTH_SHORT).show();
			}
		});
	}

	public void showConnectionFailedToast() {
		m_handler.post(new Runnable() {
			@Override
			public void run() {
				Toast.makeText(getApplicationContext(), "连接错误，请检查网络.",
						Toast.LENGTH_SHORT).show();
			}
		});
	}

	@Override
	public void onClick(View view) {

		m_smthSupport.restore();

		if (view.getId() == R.id.signin_button) {
			final String newUserName = m_userNameEditText.getText().toString();
			final String newPassword = m_passwordEditText.getText().toString();

			// login
			final ProgressDialog pdialog = new ProgressDialog(this);
			pdialog.setMessage("登录中...");
			// pdialog.setMax(1);
			// pdialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
			pdialog.show();

			Thread th = new Thread() {
				@Override
				public void run() {
					m_smthSupport.setUserid(newUserName);
					m_smthSupport.setPasswd(newPassword);
					int result = m_smthSupport.login();
					if (result == 0) {
						showAuthenticationFailedToast();
					}
					else if(result == -1){
						showConnectionFailedToast();
					}
					else {
						// showSuccessToast();
						aSMApplication.getCurrentApplication()
								.updateAutoUserNameAndPassword(newUserName,
										newPassword);

						Intent intent = new Intent();
						intent.setClassName("com.athena.asm",
								"com.athena.asm.HomeActivity");
						intent.putExtra(StringUtility.LOGINED, true);
						intent.putExtra(StringUtility.GUEST_LOGINED, false);
						intent.putExtra(StringUtility.LOGINED_ID, newUserName);
						startActivity(intent);
						finish();
					}
					pdialog.cancel();
				}
			};
			th.start();
		} else if (view.getId() == R.id.guest_button) {
			// login with userid = "guest"
			final ProgressDialog pdialog = new ProgressDialog(this);
			pdialog.setMessage("匿名登录中...");
			// pdialog.setMax(1);
			// pdialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
			pdialog.show();

			Thread th = new Thread() {
				@Override
				public void run() {
					m_smthSupport.setUserid("guest");
					m_smthSupport.setPasswd("");
					int result = m_smthSupport.login();
					if (result == -1) {
						showConnectionFailedToast();
					}
					else {
						Intent intent = new Intent();
						intent.setClassName("com.athena.asm", "com.athena.asm.HomeActivity");
						intent.putExtra(StringUtility.LOGINED, false);
						intent.putExtra(StringUtility.GUEST_LOGINED, true);
						startActivity(intent);
						finish();
					}
					pdialog.cancel();
				}
			};
			th.start();
		}
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		if (keyCode == KeyEvent.KEYCODE_BACK) {
			Boolean rememberUser = aSMApplication.getCurrentApplication().isRememberUser();
			if (!rememberUser) {
				aSMApplication.getCurrentApplication()
						.updateAutoUserNameAndPassword("", "");
			}
			aSMApplication.getCurrentApplication().syncPreferences();

			finish();
			android.os.Process.killProcess(android.os.Process.myPid());
			return true;
		} else {
			return super.onKeyDown(keyCode, event);
		}
	}
}