Android Open Source - PICwidget Info View Flipper Remote Views Factory

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2014 Jason J.//from www .ja  va2  s.c o m
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.ovrhere.android.picwidget.ui.remoteviews;

import java.util.ArrayList;
import java.util.List;

import android.appwidget.AppWidgetManager;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.widget.RemoteViews;
import android.widget.RemoteViewsService.RemoteViewsFactory;

import com.ovrhere.android.picwidget.R;
import com.ovrhere.android.picwidget.prefs.PreferenceUtils;
import com.ovrhere.android.picwidget.utils.TextClipper;

/**
 * The factory to produce remote views for the information view text.
 * @author Jason J.
 * @version 0.2.1-20140819
 */
public class InfoViewFlipperRemoteViewsFactory implements RemoteViewsFactory {
  /** Class name for debugging purposes. */
  @SuppressWarnings("unused")
  final static private String CLASS_NAME = 
      InfoViewFlipperRemoteViewsFactory.class.getSimpleName();
  /////////////////////////////////////////////////////////////////////////////////////////////////
  /// End constants
  ////////////////////////////////////////////////////////////////////////////////////////////////
  
  /** The list of strings to show through the flipper. */
  private List<String> mInfoText = new ArrayList<String>();

  /** The current context of the widget. */
  private Context mContext = null;
  /** The id of the widget views being produced. */
  private int mAppWidgetId = -1;
  
  public InfoViewFlipperRemoteViewsFactory(Context context, Intent intent) {
     mContext = context;
     mAppWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
              AppWidgetManager.INVALID_APPWIDGET_ID);
  }

  
  @Override
  public void onCreate() {
    fetchData();    
  }


  @Override
  public void onDataSetChanged() {
    mInfoText.clear();
    fetchData();
  }

  @Override
  public void onDestroy() {
    // Nothing to do for now
  }

  @Override
  public int getCount() {
    return mInfoText.size();
  }

  @Override
  public RemoteViews getViewAt(int position) {    
    String info = mInfoText.get(position);
    if (null != info){
      RemoteViews rv = new RemoteViews(mContext.getPackageName(), R.layout.widget_info_text);
      rv.setTextViewText(R.id.com_ovrhere_picwidget_infotext_text, info);
      
      return rv;
    } 
    return null;
  }

  @Override
  public RemoteViews getLoadingView() {
    return null;
  }

  @Override
  public int getViewTypeCount() {
    return 1;
  }

  @Override
  public long getItemId(int position) {
    return position;
  }

  @Override
  public boolean hasStableIds() {
    return true;
  }
  
  /////////////////////////////////////////////////////////////////////////////////////////////////
  /// Helper methods
  ////////////////////////////////////////////////////////////////////////////////////////////////
  /** Fetches data fresh from the source and stores it in #mInfoText */
  private void fetchData() {
    SharedPreferences prefs = PreferenceUtils.getPreferences(mContext, mAppWidgetId);
    Resources r = mContext.getResources();
    //if image is displayed or there is a phone number
    boolean pictureDisplayed = 
        prefs.getBoolean(
            r.getString(R.string.com_ovrhere_picwidget_pref_KEY_DISPLAY_PICTURE), 
            false) ||
        (prefs.getString(
            r.getString(R.string.com_ovrhere_picwidget_pref_KEY_CONTACT_PHONE_NUMBER),
            "").isEmpty() == false);
    
    String timeValue = 
        prefs.getString(
            r.getString(R.string.com_ovrhere_picwidget_pref_KEY_TIME_DISPLAY), 
            "");
    //if not none, time is displayed.
    boolean timeDisplayed = timeValue.equals(
          r.getString(R.string.com_ovrhere_picwidget_pref_VALUE_TIME_DISPLAY_NONE)
        ) == false;
    String fullInfoText = 
        prefs.getString(
            r.getString(R.string.com_ovrhere_picwidget_pref_KEY_INFO_CONTENT), 
            "");
    
    clipInfoText(pictureDisplayed, timeDisplayed, fullInfoText);
    if (mInfoText.isEmpty()){
      mInfoText.add(""); //add one empty element.
    }
  }
  
  /**
   * Clips the text into smaller pieces to be displayed as multiple views.
   * @param pictureDisplayed Whether or not the picture is currently being displayed.
   * @param timeDisplayed Whether or not the time is being displayed.
   * @param fullInfoText The full text to clip into smaller pieces.
   */
  private void clipInfoText(boolean pictureDisplayed, boolean timeDisplayed,
      String fullInfoText) {
    Resources r = mContext.getResources();
    int maxLines = 
        r.getInteger(R.integer.com_ovrhere_picwidget_factory_infotext_lineLimit);
    
    float lineWidth = r.getDimensionPixelSize(
        R.dimen.com_ovhere_picwidget_widget_infoText_width_max); 
    if (pictureDisplayed && timeDisplayed){
      lineWidth = r.getDimensionPixelSize(
        R.dimen.com_ovhere_picwidget_widget_infoText_width_min);
    } else if (pictureDisplayed || timeDisplayed){
      lineWidth = r.getDimensionPixelSize(
          R.dimen.com_ovhere_picwidget_widget_infoText_width_mid);
    }        
    float textSize = r.getDimensionPixelSize(
        R.dimen.com_ovrhere_picwidget_widget_text_info_size);
    
    mInfoText = TextClipper.clipText(
        fullInfoText, textSize, 
        lineWidth, maxLines);
    
  }
    
}

Java Source Code List

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