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云代码 - android代码库

这是一个简单的学生考勤管理系统

2017-05-12 作者： 林林彩虹举报

[android]代码库

view sourceprint?
package cindy.android.test.synclistview;
 
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
 
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HTTP;
 
import cindy.android.test.synclistview.R;
 
import com.info.util.userInfo;
 
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.CompoundButton.OnCheckedChangeListener;
 
public class Login extends Activity {
 
    private String userName;
    private String password;
    String strResult = null;
 
    private EditText view_userName;
    private EditText view_password;
    private CheckBox view_rememberMe;
    private Button view_loginSubmit;
    private Button view_loginRegister;
    private TextView textView1;
     
    private boolean isnet = false;
     
    private static final int MENU_EXIT = Menu.FIRST - 1;
    private static final int MENU_ABOUT = Menu.FIRST;
     
    private final String SHARE_LOGIN_TAG = "MAP_SHARE_LOGIN_TAG";
 
 
    private String SHARE_LOGIN_USERNAME = "MAP_LOGIN_USERNAME";
 
     
    private String SHARE_LOGIN_PASSWORD = "MAP_LOGIN_PASSWORD";
 
     
    private boolean isNetError;
 
     
    private ProgressDialog proDialog;
 
     
    Handler loginHandler = new Handler() {
        public void handleMessage(Message msg) {
            isNetError = msg.getData().getBoolean("isNetError");
            if (proDialog != null) {
                proDialog.dismiss();
            }
            if (isNetError) {
                Toast.makeText(Login.this, "登陆失败:\n1.请检查您网络连接.\n2.请联系我们.!",
                        Toast.LENGTH_SHORT).show();
            }
             
            else {
                Toast.makeText(Login.this, "登陆失败,请输入正确的用户名和密码!",
                        Toast.LENGTH_SHORT).show();
                 
                clearSharePassword();
            }
        }
    };
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);
        findViewsById();
        initView(false);
         
        setListener();
    }
 
     
    private void findViewsById() {
        view_userName = (EditText) findViewById(R.id.loginUserNameEdit);
        view_password = (EditText) findViewById(R.id.loginPasswordEdit);
        view_rememberMe = (CheckBox) findViewById(R.id.loginRememberMeCheckBox);
        view_loginSubmit = (Button) findViewById(R.id.loginSubmit);
        view_loginRegister = (Button) findViewById(R.id.loginRegister);
    }
 
     
    private void initView(boolean isRememberMe) {
        SharedPreferences share = getSharedPreferences(SHARE_LOGIN_TAG, 0);
        String userName = share.getString(SHARE_LOGIN_USERNAME, "");
        String password = share.getString(SHARE_LOGIN_PASSWORD, "");
        Log
                .d(this.toString(), "userName=" + userName + " password="
                        + password);
        if (!"".equals(userName)) {
            view_userName.setText(userName);
        }
        if (!"".equals(password)) {
            view_password.setText(password);
            view_rememberMe.setChecked(true);
        }
         
        if (view_password.getText().toString().length() > 0) {
             
        }
        share = null;
    }
 
     
    private boolean validateLocalLogin(String userName, String password,
            String validateUrl) {
        System.out.println("username:"+userName);
        System.out.println("password:"+password);
         
        boolean loginState = false;
 
        HttpPost httpRequest =new HttpPost(validateUrl);
         
 
        List params=new ArrayList();
        params.add(new BasicNameValuePair("username",userName));
        params.add(new BasicNameValuePair("passwd",password)); 
         
        try{
             
            httpRequest.setEntity(new UrlEncodedFormEntity(params,HTTP.UTF_8));
 
         
             
            HttpClient httpclient = new DefaultHttpClient ();
            HttpParams httpparams = httpclient . getParams ();
            HttpConnectionParams.setConnectionTimeout ( httpparams , 5000 );
            HttpConnectionParams.setSoTimeout ( httpparams , 5000 );
            HttpResponse httpResponse =  httpclient.execute(httpRequest);
             
             
            if(httpResponse.getStatusLine().getStatusCode()==200){
                 
                     
                BufferedReader reader=new BufferedReader(new InputStreamReader(httpResponse.getEntity().getContent(),"UTF-8"));
                String str = reader.readLine();
                reader.close();
                 
                strResult = str;
                 
                   
                 
                System.out.println("strResult: "+strResult);
                System.out.println("str: "+str);
            }
        }catch(Exception e){
            Message message = new Message();
            Bundle bundle = new Bundle();
            bundle.putBoolean("isNetError", true);
            message.setData(bundle);
            loginHandler.sendMessage(message);
            isnet = true;
//         
        }
 
        if(strResult != null && !strResult.equals("error")){
              loginState = true;
        }else{
            loginState =false;
        }
     
        if (loginState) {
            if (isRememberMe()) {
                saveSharePreferences(true, true);
            } else {
                saveSharePreferences(true, false);
            }
             
            userInfo.setUsername(userName);
        } else {
             
            if (!isNetError) {
                clearSharePassword();
            }
        }
        if (!view_rememberMe.isChecked()) {
            clearSharePassword();
        }
        return loginState;
    }
 
     
    private void saveSharePreferences(boolean saveUserName, boolean savePassword) {
        SharedPreferences share = getSharedPreferences(SHARE_LOGIN_TAG, 0);
        if (saveUserName) {
            Log.d(this.toString(), "saveUserName="
                    + view_userName.getText().toString());
            share.edit().putString(SHARE_LOGIN_USERNAME,
                    view_userName.getText().toString()).commit();
        }
        if (savePassword) {
            share.edit().putString(SHARE_LOGIN_PASSWORD,
                    view_password.getText().toString()).commit();
        }
        share = null;
    }
 
     
    private boolean isRememberMe() {
        if (view_rememberMe.isChecked()) {
            return true;
        }
        return false;
    }
 
     
    private OnClickListener submitListener = new OnClickListener() {
        @Override
        public void onClick(View v) {
            proDialog = ProgressDialog.show(Login.this, "提示",
                    "正在登陆...", true, true);
         
            Thread loginThread = new Thread(new LoginFailureHandler());
            loginThread.start();
        }
    };
 
 
     
    private OnCheckedChangeListener rememberMeListener = new OnCheckedChangeListener() {
 
        @Override
        public void onCheckedChanged(CompoundButton buttonView,
                boolean isChecked) {
            if (view_rememberMe.isChecked()) {
                Toast.makeText(Login.this, "如果登录成功,以后账号和密码会自动输入!",
                        Toast.LENGTH_SHORT).show();
            }
        }
    };
 
     
    private OnClickListener registerLstener = new OnClickListener() {
        @Override
        public void onClick(View v) {
         
            Toast.makeText(Login.this, "注册功能暂不开放",
                    Toast.LENGTH_SHORT).show();
        }
    };
 
     
    private void setListener() {
        view_loginSubmit.setOnClickListener(submitListener);
        view_loginRegister.setOnClickListener(registerLstener);
        view_rememberMe.setOnCheckedChangeListener(rememberMeListener);
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);
        menu.add(0, MENU_EXIT, 0, getResources().getText(R.string.MENU_EXIT));
        menu.add(0, MENU_ABOUT, 0, getResources().getText(R.string.MENU_ABOUT));
        return true;
    }
 
    @Override
    public boolean onMenuItemSelected(int featureId, MenuItem item) {
        super.onMenuItemSelected(featureId, item);
        switch (item.getItemId()) {
        case MENU_EXIT:
            finish();
            break;
        case MENU_ABOUT:
            alertAbout();
            break;
        }
        return true;
    }
 
     
    private void alertAbout() {
        new AlertDialog.Builder(Login.this).setTitle(R.string.MENU_ABOUT)
                .setMessage(R.string.aboutInfo).setPositiveButton(
                        R.string.ok_label,
                        new DialogInterface.OnClickListener() {
                            public void onClick(
                                    DialogInterface dialoginterface, int i) {
                            }
                        }).show();
    }
 
    //清空账户信息
    private void clearSharePassword() {
        SharedPreferences share = getSharedPreferences(SHARE_LOGIN_TAG, 0);
        share.edit().putString(SHARE_LOGIN_PASSWORD, "").commit();
        share = null;
    }
 
    class LoginFailureHandler implements Runnable {
        @Override
        public void run() {
                userName = view_userName.getText().toString();
                password = view_password.getText().toString();
                 
                String validateURL="http://10.0.2.2/kaoqin/phone/login.php";
                boolean loginState = validateLocalLogin(userName, password,
                        validateURL);
                Log.d(this.toString(), "validateLogin");
     
                 
                if (loginState) {
                     
                    Intent intent = new Intent();
                    //跳转 到课程信息界面
                    intent.setClass(Login.this, courseInfo.class);
                    Bundle bundle = new Bundle();
                    bundle.putString("MAP_USERNAME", userName);
                    intent.putExtras(bundle);
                     
                    finish();
                    startActivity(intent);
                    proDialog.dismiss();
                } else {
                     
                    if(!isnet){
                        Message message = new Message();
                        Bundle bundle = new Bundle();
                        bundle.putBoolean("isNetError", false);
                        message.setData(bundle);
                        loginHandler.sendMessage(message);
                    }
                }
 
        }
 
    }
}

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