Android Open Source - Web-wrapper Settings Activity

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License

The source code is released under:
Apache License
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Java Source Code

package com.periplanisi.android.webwrapper.ui.activity;
/*from w w w .j  a v a 2s.co  m*/
import android.annotation.TargetApi;
import android.app.ActionBar;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.view.MenuItem;

import com.periplanisi.android.webwrapper.R;
import com.periplanisi.android.webwrapper.settings.SettingsHelper;

/**
 * Settings activity supporting both old and new API
 * 
 * @author Ioannis Panagiotopoulos <ipanag+android@gmail.com>
 *
 */
public class SettingsActivity extends PreferenceActivity {

  private SettingsHelper settingsHelper;
  
  public static Intent getStartIntent(Context context) {
    Intent intent = new Intent(context, SettingsActivity.class);
    
    return intent;
  }
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    settingsHelper = SettingsHelper.getInstance(this);
    
    if(isOldApiPreferences()) {
      setupSimplePreferencesScreen();
    } else {
      setupNewApiPreferences();
    }
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    int itemId = item.getItemId();
    
      if(itemId == android.R.id.home) {
          finish();
          return true;
      }
      
      return super.onOptionsItemSelected(item);
  }
  
  private static boolean isOldApiPreferences() {
    return Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB;
  }
  
  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  private void setupNewApiPreferences() {
        getFragmentManager().beginTransaction().replace(android.R.id.content, new WebPreferenceFragment()).commit();
        
    ActionBar actionBar = getActionBar();
    if(actionBar != null) {
      actionBar.setDisplayHomeAsUpEnabled(true);
    }
  }

  @SuppressWarnings("deprecation")
  private void setupSimplePreferencesScreen() {
    addPreferencesFromResource(R.xml.prefs_web);
    
    initBoolPref(R.string.prefs_key_action_bar, true);
    initBoolPref(R.string.prefs_key_js_enabled, true);
    initBoolPref(R.string.prefs_key_open_same_host, true);
    initBoolPref(R.string.prefs_key_open_other_host, true);
    initBoolPref(R.string.prefs_key_ignore_ssl_error, true);
    initBoolPref(R.string.prefs_key_built_in_zoom, true);
    initBoolPref(R.string.prefs_key_display_zoom, false);
  }

  @Override
  public boolean onIsMultiPane() {
    return false;
  }

  @SuppressWarnings("deprecation")
  private void initBoolPref(int keyResId, boolean enabled) {
    String key = getString(keyResId);
    boolean value = settingsHelper.getBoolValue(key);
    
    Preference pref = findPreference(key);
    pref.setEnabled(enabled);
    ((CheckBoxPreference) pref).setChecked(value);
  }
  
  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  public static class WebPreferenceFragment extends PreferenceFragment {
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      
      addPreferencesFromResource(R.xml.prefs_web);

      initBoolPref(R.string.prefs_key_action_bar);
      initBoolPref(R.string.prefs_key_js_enabled);
      initBoolPref(R.string.prefs_key_open_same_host);
      initBoolPref(R.string.prefs_key_open_other_host);
      initBoolPref(R.string.prefs_key_ignore_ssl_error);
      initBoolPref(R.string.prefs_key_built_in_zoom);
      initBoolPref(R.string.prefs_key_display_zoom);
    }
    
    private void initBoolPref(int keyResId) {
      Context context = getActivity();
      SettingsHelper settingsHelper = SettingsHelper.getInstance(context);
      
      String key = context.getString(keyResId);
      boolean value = settingsHelper.getBoolValue(key);
      
      ((CheckBoxPreference)findPreference(key)).setChecked(value);
    }
  }

}
Java Source Code List
