Android Open Source - com.elsewhat.android.slideshow Slideshow Preferences

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License

The source code is released under:
Copyright (C) 2012 Dagfinn Parnas <dagfinn.parnas@gmail.com> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Sof...
If you think the Android project com.elsewhat.android.slideshow listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.elsewhat.android.slideshow.activities;
/*from www.j  a v  a2s  . c om*/
import java.io.File;

import com.elsewhat.android.slideshow.R;
import com.elsewhat.android.slideshow.api.Analytics;
import com.elsewhat.android.slideshow.api.AndroidUtils;
import com.elsewhat.android.slideshow.api.DeletablePreference;
import com.elsewhat.android.slideshow.api.ReadOnlyPreference;


import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.preference.CheckBoxPreference;
import android.preference.EditTextPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceCategory;
import android.preference.PreferenceScreen;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.Preference.OnPreferenceClickListener;
import android.text.InputType;
import android.text.method.DigitsKeyListener;
import android.widget.Toast;


public class SlideshowPreferences extends PreferenceActivity implements
    OnSharedPreferenceChangeListener {

  //TODO-FORK: Update this with your projects app package name from the android manifest
  public static final String APP_PACKAGE_NAME="com.elsewhat.android.slideshow";
  
  public static final String PREFS_NAME = "SlideshowPreferences";

  public static final String KEY_DO_ANALYTICS = "DoAnalytics";
  public static final String KEY_DISPLAY_TIME = "DisplayTime";
  public static final String KEY_DO_TRANSITION = "DoTransition";
  public static final String KEY_TRANSITION_TYPE = "TransitonType";
  
  public static final String KEY_DISPLAY_TITLE = "DisplayTitle";
  public static final String KEY_DO_DOWNLOAD_ON_3G = "Do3G";
  public static final String KEY_DO_DELETE_CACHE = "DoDeleteCache";
  
  public static final String TRANSITION_TYPE_SLIDE_IN="SLIDE_IN";
  public static final String TRANSITION_TYPE_FADE_IN="FADE_IN";


  public static final boolean DEFAULT_VALUE_DO_ANALYTICS = true;
  public static final boolean DEFAULT_VALUE_DOWNLOAD_ON_3G = false;
  public static final boolean DEFAULT_VALUE_DO_TRANSITION = true;
  public static final boolean DEFAULT_VALUE_DO_TRANSITION_GOOGLETV = false;
  public static final String DEFAULT_VALUE_TRANSITION_TYPE = TRANSITION_TYPE_FADE_IN;
  public static final String DEFAULT_VALUE_TRANSITION_TYPE_GOOGLETV = TRANSITION_TYPE_FADE_IN;
  public static final boolean DEFAULT_VALUE_DISPLAY_TITLE = true;
  public static final int DEFAULT_VALUE_DISPLAY_TIME_INT = 11;
  public static final String DEFAULT_VALUE_DISPLAY_TIME = DEFAULT_VALUE_DISPLAY_TIME_INT+"";
  
  //TODO: Make sure this matches the package name of the app!
  public static final String CACHE_DIRECTORY="/Android/data/"+APP_PACKAGE_NAME+"/files/";

  protected EditTextPreference editDisplayTime;
  protected CheckBoxPreference cbAnalytics,cbDownloadOn3G, cbDoTransition,cbDisplayPhotoTitle;
  protected ListPreference lpTransisitonType;
  protected DeletablePreference dDeleteCache;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setPreferenceScreen(createPreferenceHierarchy());
    getPreferenceScreen().getSharedPreferences()
        .registerOnSharedPreferenceChangeListener(this);

    setContentView(R.layout.activity_preferences);

  }

  private PreferenceScreen createPreferenceHierarchy() {
    // Root
    PreferenceScreen root = getPreferenceManager().createPreferenceScreen(
        this);
    root.getPreferenceManager().setSharedPreferencesName(PREFS_NAME);

    PreferenceCategory slideshowCat = new PreferenceCategory(this);
    
    /* No need for this since this is the premium version
    ReadOnlyPreference premiumPreference = new ReadOnlyPreference(this);
    premiumPreference.setPersistent(false);
    premiumPreference.setTitle(R.string.pref_premium_title);
    premiumPreference.setSummary(R.string.pref_premium_summary);
    premiumPreference.setOnPreferenceClickListener(new OnPreferenceClickListener() {
      @Override
      public boolean onPreferenceClick(Preference preference) {
        try {
          startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q=pname:"+APP_PACKAGE_NAME)));
        }catch (ActivityNotFoundException e) {
          startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://market.android.com/details?id=" + APP_PACKAGE_NAME)));
        }
        return true;
      }
    });
    root.addPreference(premiumPreference);
    */
    
    slideshowCat.setTitle(R.string.pref_category_slideshow);
    root.addPreference(slideshowCat);
    
    
    
    editDisplayTime = new EditTextPreference(this);
    editDisplayTime.getEditText().setInputType(InputType.TYPE_CLASS_NUMBER);
    editDisplayTime.getEditText().setKeyListener(DigitsKeyListener
        .getInstance(false, false));
    editDisplayTime.setDefaultValue(DEFAULT_VALUE_DISPLAY_TIME);
    editDisplayTime.setKey(KEY_DISPLAY_TIME);
    editDisplayTime.setTitle(R.string.pref_displaytime_title);
    //editDisplayTime.setSummary(R.string.pref_displaytime_summary);
    editDisplayTime.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
      @Override
      public boolean onPreferenceChange(Preference preference,
          Object newValue) {
        try {
          int number = Integer.parseInt(newValue.toString());
          if (number < 5 || number>120){                  
            notifyUser("Number of seconds must be between 5 and 120");
            return false;
          }
          return true;
        } catch (NumberFormatException e) {
          notifyUser("Please enter a valid number for display time (minimum 5, maximum 120)");
          return false;
        }
      }
    });
    slideshowCat.addPreference(editDisplayTime);
    
    cbDisplayPhotoTitle = new CheckBoxPreference(this);
    cbDisplayPhotoTitle.setKey(KEY_DISPLAY_TITLE);
    cbDisplayPhotoTitle.setDefaultValue(new Boolean(DEFAULT_VALUE_DISPLAY_TITLE));
    cbDisplayPhotoTitle.setTitle(R.string.pref_phototitle_title);
    cbDisplayPhotoTitle.setSummary(R.string.pref_phototitle_summary);
    slideshowCat.addPreference(cbDisplayPhotoTitle);
    
    /*
    cbDoTransition = new CheckBoxPreference(this);
    cbDoTransition.setKey(KEY_DO_TRANSITION);
    if(AndroidUtils.isGoogleTV(getApplicationContext())){
      cbDoTransition.setDefaultValue(new Boolean(DEFAULT_VALUE_DO_TRANSITION_GOOGLETV));
    }else {
      cbDoTransition.setDefaultValue(new Boolean(DEFAULT_VALUE_DO_TRANSITION));
    }
    cbDoTransition.setTitle(R.string.pref_transition_title);
    cbDoTransition.setSummary(R.string.pref_transition_summary);
    slideshowCat.addPreference(cbDoTransition);
    */

    lpTransisitonType = new ListPreference(this);
    lpTransisitonType.setKey(KEY_TRANSITION_TYPE);
    if(AndroidUtils.isGoogleTV(getApplicationContext())){
      lpTransisitonType.setDefaultValue(DEFAULT_VALUE_TRANSITION_TYPE);
    }else {
      lpTransisitonType.setDefaultValue(DEFAULT_VALUE_TRANSITION_TYPE_GOOGLETV);
    }
    lpTransisitonType.setTitle(R.string.pref_transition_title);
    lpTransisitonType.setDialogTitle(R.string.pref_transition_dialogtitle);
    lpTransisitonType.setEntries(R.array.pref_transitiontypes_text);
    lpTransisitonType.setEntryValues(R.array.pref_transitiontypes_values);
    slideshowCat.addPreference(lpTransisitonType);
     
    
/*
    editTextUser = new EditTextPreference(this);
    editTextUser.setKey(KEY_REDDIT_USERNAME);
    editTextUser.setDialogTitle(R.string.lblUsernameDialogTitle);
    editTextUser.setTitle(R.string.lblUsernameTitle);
    editTextUser.setSummary(R.string.lblUsernameSummaryBlank);
    userCat.addPreference(editTextUser);
*/
    
    PreferenceCategory otherCat = new PreferenceCategory(this);
    otherCat.setTitle(R.string.pref_category_other);
    root.addPreference(otherCat);

    
    
    cbAnalytics = new CheckBoxPreference(this);
    cbAnalytics.setDefaultValue(new Boolean(DEFAULT_VALUE_DO_ANALYTICS));
    cbAnalytics.setKey(KEY_DO_ANALYTICS);
    cbAnalytics.setTitle(R.string.pref_analytics_title);
    cbAnalytics.setSummary(R.string.pref_analytics_summary);
    otherCat.addPreference(cbAnalytics);
    
    
    //hide this option from non-phone devices such as GoogleTV
    if (AndroidUtils.hasTelephony(this)==true){
      cbDownloadOn3G = new CheckBoxPreference(this);
      cbDownloadOn3G.setDefaultValue(new Boolean(DEFAULT_VALUE_DOWNLOAD_ON_3G));
      cbDownloadOn3G.setKey(KEY_DO_DOWNLOAD_ON_3G);
      cbDownloadOn3G.setTitle(R.string.pref_allow3g_title);
      cbDownloadOn3G.setSummary(R.string.pref_allow3g_summary);
      otherCat.addPreference(cbDownloadOn3G);
    }
    
    DeletablePreference dDeleteCache = new DeletablePreference(this);
    dDeleteCache.setDialogTitle(R.string.pref_deletecache_dialogtitle);
    dDeleteCache.setTitle(R.string.pref_deletecache_title);
    dDeleteCache.setSummary(R.string.pref_deletecache_summary);
    dDeleteCache.setDialogIcon(android.R.drawable.ic_delete);
    dDeleteCache.setPersistent(true);
    dDeleteCache.setKey(KEY_DO_DELETE_CACHE);
    dDeleteCache.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
      
      @Override
      public boolean onPreferenceChange(Preference preference, Object newValue) {
        Analytics.trackEvent(getApplicationContext(), "actions", "deletecache", "true");
        String rootPath =  Environment.getExternalStorageDirectory()+ SlideshowPreferences.CACHE_DIRECTORY;
        
        File rootCacheDir= new File (rootPath);
        
          if (rootCacheDir.isDirectory()) {
              File[] cachedFiles = rootCacheDir.listFiles();
              notifyUser("Deleting " + cachedFiles.length + " cached photos from " + rootPath);
              for (int i=0; i<cachedFiles.length; i++) {
                cachedFiles[i].delete();
              }
              rootCacheDir.delete();
          }

         
        return true;
      }
    });
    otherCat.addPreference(dDeleteCache);
    
    ReadOnlyPreference aboutPreference = new ReadOnlyPreference(this);
    aboutPreference.setPersistent(false);
    aboutPreference.setTitle(R.string.pref_about_title);
    aboutPreference.setSummary(R.string.pref_about_summary);
    aboutPreference.setOnPreferenceClickListener(new OnPreferenceClickListener() {
      @Override
      public boolean onPreferenceClick(Preference preference) {
        try {
          startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q=pub:\"Dagfinn Parnas\"")));
        }catch (ActivityNotFoundException e) {
          startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://market.android.com/developer?pub=Dagfinn+Parnas")));
        }
        
        return true;
      }
    });
    otherCat.addPreference(aboutPreference);

    updateSummaryBasedOnValue();

    return root;

  }

  private void updateSummaryBasedOnValue() {
    if (editDisplayTime.getText() != null) {
      editDisplayTime.setSummary(editDisplayTime.getText() + " seconds");
    } 
    lpTransisitonType.setSummary("Transition " + lpTransisitonType.getEntry());

  }

  @Override
  public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
      String key) {
    // SharedPreferences settings =
    // getSharedPreferences(RedditTVPreferences.PREFS_NAME, 0);
    // Need to handle conversion due to lack of api support for int in
    // ListPreferences
    // String updatedValue= settings.getString(key,null);
    // Log.d("RedditTV", key + " key was updated in sharedPreferences");
    updateSummaryBasedOnValue();

  }

  public static int getDisplayTimeMS(Context c){
    SharedPreferences settings = c.getSharedPreferences(SlideshowPreferences.PREFS_NAME, MODE_WORLD_READABLE);
    String strDisplayTimeSeconds=settings.getString(SlideshowPreferences.KEY_DISPLAY_TIME, SlideshowPreferences.DEFAULT_VALUE_DISPLAY_TIME);
    try {
      int nrSeconds = Integer.parseInt(strDisplayTimeSeconds);
      return nrSeconds*1000;
      
    }catch (NumberFormatException e) {
      return SlideshowPreferences.DEFAULT_VALUE_DISPLAY_TIME_INT * 1000;
    }
  }
  
  public static boolean doDownloadOn3G(Context c){
    SharedPreferences settings = c.getSharedPreferences(SlideshowPreferences.PREFS_NAME, MODE_WORLD_READABLE);
    return settings.getBoolean(SlideshowPreferences.KEY_DO_DOWNLOAD_ON_3G, SlideshowPreferences.DEFAULT_VALUE_DOWNLOAD_ON_3G);
  }
  
  public static boolean doDisplayPhotoTitle(Context c){
    SharedPreferences settings = c.getSharedPreferences(SlideshowPreferences.PREFS_NAME, MODE_WORLD_READABLE);
    return settings.getBoolean(SlideshowPreferences.KEY_DISPLAY_TITLE, SlideshowPreferences.DEFAULT_VALUE_DISPLAY_TITLE);
  }
  
  
  /**
   * Find out if we should use a custom transition for the gallery.
   * If yes, we will use custom animations in the Gallery
   * 
   * @param c
   * @return
   */
  public static boolean doCustomTransition(Context c){
    SharedPreferences settings = c.getSharedPreferences(SlideshowPreferences.PREFS_NAME, MODE_WORLD_READABLE);
    String defaultValue = DEFAULT_VALUE_TRANSITION_TYPE;
    if(AndroidUtils.isGoogleTV(c)){
      defaultValue=DEFAULT_VALUE_TRANSITION_TYPE_GOOGLETV;
    }
    String transitionType= settings.getString(SlideshowPreferences.KEY_TRANSITION_TYPE, defaultValue);
    
    if(!TRANSITION_TYPE_SLIDE_IN.equals(transitionType)){
      return true;
    }else {
      return false;
    }
  }


  
  
  private void notifyUser(CharSequence msg) {
    Toast.makeText(this, msg, Toast.LENGTH_LONG).show();
  }

}
Java Source Code List
