Android Open Source - Web-wrapper Setup Fragment

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License

The source code is released under:

Apache License

Java Source Code

package com.periplanisi.android.webwrapper.ui.fragment;
//  w  ww . j av  a  2 s  .co m
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;

import com.periplanisi.android.webwrapper.R;
import com.periplanisi.android.webwrapper.ui.activity.WebActivity;

/**
 * Fragment to display initial setup screen
 * 
 * @author Ioannis Panagiotopoulos <ipanag+android@gmail.com>
 *
 */
public class SetupFragment extends Fragment implements OnClickListener, TextWatcher, OnCheckedChangeListener {

  private static final String PREFS = "prefs_setup_screen";
  private static final String URL_KEY = "last_used_url";
  private static final String AUTH_KEY = "last_used_auth_key";
  private static final String USER_KEY = "last_used_user_key";
  private static final String PASS_KEY = "last_used_pass_key";
  
  private static final String DEFAULT_URL = "http://beta.html5test.com/";
  
  private EditText inputView, usernameView, passwordView;
  private CheckBox authCheckBox;
  private View goButton;
  private SharedPreferences prefs;
  
  public static Fragment newInstance() {
    return new SetupFragment();
  }
  
  public SetupFragment() {
  }

  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_setup, container, false);
    
    inputView = (EditText) rootView.findViewById(R.id.input_url);
    goButton = rootView.findViewById(R.id.go_button);
    goButton.setOnClickListener(this);
    
    prefs = getActivity().getApplicationContext().getSharedPreferences(PREFS, Context.MODE_PRIVATE);
    
    String url = DEFAULT_URL;
    boolean isAuthRequired = false;
    String username = null;
    String password = null;
    if(savedInstanceState != null && savedInstanceState.containsKey(URL_KEY)) {
      url = savedInstanceState.getString(URL_KEY);
      isAuthRequired = savedInstanceState.getBoolean(AUTH_KEY, isAuthRequired);
      username = savedInstanceState.getString(USER_KEY);
      password = savedInstanceState.getString(PASS_KEY);
    } else {
      url = prefs.getString(URL_KEY, url);
      isAuthRequired = prefs.getBoolean(AUTH_KEY, isAuthRequired);
      username = prefs.getString(USER_KEY, username);
      password = prefs.getString(PASS_KEY, password);
    }
    
    inputView.setText(url);
    goButton.setEnabled(!TextUtils.isEmpty(url));
    
    authCheckBox = (CheckBox) rootView.findViewById(R.id.auth_check);
    usernameView = (EditText) rootView.findViewById(R.id.username);
    passwordView = (EditText) rootView.findViewById(R.id.password);
    
    authCheckBox.setChecked(isAuthRequired);
    if(isAuthRequired) {
      usernameView.setText(username);
      passwordView.setText(password);
    }
    
    updateAuth(authCheckBox.isChecked());
    authCheckBox.setOnCheckedChangeListener(this);
    
    return rootView;
  }
  
  private void updateAuth(final boolean required) {
    final int visibility = (required ? View.VISIBLE : View.GONE);
    usernameView.setVisibility(visibility);
    passwordView.setVisibility(visibility);
  }
  
  @Override
  public void onResume() {
    super.onResume();
    
    inputView.addTextChangedListener(this);
  }
  
  @Override
  public void onPause() {
    inputView.removeTextChangedListener(this);
    
    super.onPause();
  }
  
  @Override
  public void onSaveInstanceState(Bundle outState) {
    String url = inputView.getText().toString();
    outState.putString(URL_KEY, url);
    outState.putBoolean(AUTH_KEY, authCheckBox.isChecked());
    outState.putString(USER_KEY, usernameView.getText().toString());
    outState.putString(PASS_KEY, passwordView.getText().toString());
    
    super.onSaveInstanceState(outState);
  }

  @Override
  public void onClick(View v) {
    int viewId = v.getId();
    if(viewId == R.id.go_button) {
      // store url for next launch
      String url = inputView.getText().toString();
      prefs.edit()
      .putString(URL_KEY, url)
      .putBoolean(AUTH_KEY, authCheckBox.isChecked())
      .putString(USER_KEY, usernameView.getText().toString())
      .putString(PASS_KEY, passwordView.getText().toString())
      .commit();
      
      // start webview
      Intent intent = WebActivity.getStartIntent(getActivity(), url, authCheckBox.isChecked(),
          usernameView.getText().toString(), passwordView.getText().toString());
      getActivity().startActivity(intent);
    }
  }

  @Override
  public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    // Do nothing
  }

  @Override
  public void onTextChanged(CharSequence s, int start, int before, int count) {
    // Do nothing
  }

  @Override
  public void afterTextChanged(Editable s) {
    goButton.setEnabled(!TextUtils.isEmpty(s.toString()));
  }

  @Override
  public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
    updateAuth(isChecked);
  }
}

Java Source Code List

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