Android Open Source - mpiwifi Main Activity

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Back to project page mpiwifi.

License

The source code is released under:

GNU General Public License

Java Source Code

package org.sorz.mpiwifi;
/*  w ww  . j a  v  a 2s.c  o  m*/
import org.sorz.mpiwifi.exceptions.AlreadyConnectedException;
import org.sorz.mpiwifi.exceptions.LoginFailException;
import org.sorz.mpiwifi.exceptions.NetworkException;
import org.sorz.mpiwifi.exceptions.NoNetworkAccessException;
import org.sorz.mpiwifi.exceptions.UnknownNetworkException;

import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.*;

public class MainActivity extends Activity {
  private SharedPreferences settings;

  private EditText netIdEdit;
  private EditText passwordEdit;
  private CheckBox autoLogin;

  private class LoginTask extends AsyncTask<String, Void, String> {
    private ProgressDialog dialog = null;
    private Context context = null;
    private Exception exception;

    public LoginTask setContext(Context context) {
      this.context = context;
      return this;
    }

    @Override
    protected void onPreExecute() {
      dialog = new ProgressDialog(context);
      dialog.setTitle(R.string.logining_title);
      dialog.setMessage(getString(R.string.logining_message));
      dialog.setIndeterminate(true);
      dialog.setCancelable(false);
      dialog.show();
    }

    @Override
    protected String doInBackground(String... params) {
      try {
        return WifiLoginer.login(params[0], params[1]);
      } catch (Exception e) {
        exception = e;
      }
      return null;
    }

    @Override
    protected void onPostExecute(String ipAddress) {
      dialog.dismiss();

      if (ipAddress != null) {
        String msg = String.format(getString(R.string.login_ok),
            ipAddress);
        Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
      } else if (exception instanceof AlreadyConnectedException)
        Toast.makeText(context, R.string.err_already,
            Toast.LENGTH_SHORT).show();
      else if (exception instanceof NoNetworkAccessException)
        Toast.makeText(context, R.string.err_noNet, Toast.LENGTH_SHORT)
            .show();
      else if (exception instanceof UnknownNetworkException)
        Toast.makeText(context, R.string.err_otherNet,
            Toast.LENGTH_SHORT).show();
      else if (exception instanceof LoginFailException)
        Toast.makeText(context, R.string.err_loginFail,
            Toast.LENGTH_SHORT).show();
      else if (exception instanceof NetworkException)
        Toast.makeText(context, R.string.err_unknow, Toast.LENGTH_SHORT)
            .show();
    }

  }

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

    settings = getSharedPreferences("settings", MODE_PRIVATE);

    netIdEdit = (EditText) findViewById(R.id.netId);
    passwordEdit = (EditText) findViewById(R.id.pwd);
    autoLogin = (CheckBox) findViewById(R.id.autoLogin);

    netIdEdit.setText(settings.getString("netId", ""));
    passwordEdit.setText(settings.getString("pwd", ""));
    autoLogin.setChecked(settings.getBoolean("autoLogin", false));
    
    TextWatcher loginInfoChangedWatcher = new TextWatcher() {
      @Override
      public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
      @Override
      public void onTextChanged(CharSequence s, int start, int before, int count) {}
      @Override
      public void afterTextChanged(Editable s) {
        if (s.length() == 0)
          autoLogin.setChecked(false);
      }
    };
    netIdEdit.addTextChangedListener(loginInfoChangedWatcher);
    passwordEdit.addTextChangedListener(loginInfoChangedWatcher);
  }

  @Override
  protected void onPause() {
    super.onPause();
    saveSettings();
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case R.id.menu_exit:
      finish();
      break;
    case R.id.menu_clean:
      clean();
      break;
    }
    return super.onOptionsItemSelected(item);
  }
  
  private void clean() {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle(R.string.clean_title)
      .setMessage(R.string.clean_message)
      .setNeutralButton(R.string.clean_ok,
          new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
              netIdEdit.getText().clear();
              passwordEdit.getText().clear();
              autoLogin.setSelected(false);
              SharedPreferences.Editor editor = settings.edit();
              editor.clear();
              editor.apply();
            }
          }).show();
    
  }
  
  private void saveSettings() {
    SharedPreferences.Editor editor = settings.edit();;
    String netId = netIdEdit.getText().toString();
    String password = passwordEdit.getText().toString();
    
    editor.putString("netId", netId);
    editor.putString("pwd", password);
    editor.putBoolean("autoLogin", autoLogin.isChecked());
    editor.commit();
  }
  

  public void setAutoLogin(View v) {
    if (autoLogin.isChecked())
      if (passwordEdit.length() == 0) {
        passwordEdit.setError(getText(R.string.err_password_required));
        autoLogin.setChecked(false);
      }
      if (netIdEdit.length() == 0) {
        netIdEdit.setError(getText(R.string.err_netid_required));
        autoLogin.setChecked(false);
      }
  }

  public void login(View v) {
    String netId = netIdEdit.getText().toString();
    String pwd = passwordEdit.getText().toString();
    if (netId.isEmpty())
      netIdEdit.setError(getText(R.string.err_netid_required));
    if (pwd.isEmpty())
      passwordEdit.setError(getText(R.string.err_password_required));
    if (! (netId.isEmpty() || pwd.isEmpty()))
      (new LoginTask()).setContext(this).execute(netId, pwd);
  }
}

Java Source Code List

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