Android Open Source - n4lwp N4 Wallpaper Settings

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License

The source code is released under:

Copyright (c) 2012, Patrick O'Leary All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:...

Java Source Code

/*
Copyright (c) 2012, Patrick O'Leary/*from  w w  w . j  ava2  s.c  o  m*/
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met: 

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer. 
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution. 

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.greentaperacing.olearyp.n4lwp;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.List;

import android.annotation.TargetApi;
import android.content.Context;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;

public class N4WallpaperSettings extends PreferenceActivity implements OnPreferenceChangeListener {
  // Following technique from http://www.blackmoonit.com/2012/07/all_api_prefsactivity/
    protected Method mLoadHeaders = null;
    protected Method mHasHeaders = null;
 
    /**
     * Checks to see if using new v11+ way of handling PrefsFragments.
     * @return Returns false pre-v11, else checks to see if using headers.
     */
    
    public boolean isNewV11Prefs() {
        if (mHasHeaders!=null && mLoadHeaders!=null) {
            try {
                return (Boolean)mHasHeaders.invoke(this);
            } catch (IllegalArgumentException e) {
            } catch (IllegalAccessException e) {
            } catch (InvocationTargetException e) {
            }
        }
        return false;
    }
 
    @SuppressWarnings("deprecation")
  @Override
    public void onCreate(Bundle aSavedState) {
        //onBuildHeaders() will be called during super.onCreate()
        try {
            mLoadHeaders = getClass().getMethod("loadHeadersFromResource", int.class, List.class );
            mHasHeaders = getClass().getMethod("hasHeaders");
        } catch (NoSuchMethodException e) {
        }
        super.onCreate(aSavedState);
        if (!isNewV11Prefs()) {
            addPreferencesFromResource(R.xml.prefs);
        }
    }
 

    /* This method is hidden for now so we only get one screen
    @Override
    public void onBuildHeaders(List<Header> aTarget) {
        try {
            mLoadHeaders.invoke(this,new Object[]{R.xml.pref_headers, aTarget});
        } catch (IllegalArgumentException e) {
        } catch (IllegalAccessException e) {
        } catch (InvocationTargetException e) {
        }  
    }
    */
 
    @TargetApi(11)
  static public class PrefsFragment extends PreferenceFragment {
        @Override
        public void onCreate(Bundle aSavedState) {
            super.onCreate(aSavedState);
            Context anAct = getActivity().getApplicationContext();
            int thePrefRes = anAct.getResources().getIdentifier(getArguments().getString("pref-resource"),
                    "xml",anAct.getPackageName());
            addPreferencesFromResource(thePrefRes);
        }
    }

  @Override
  public boolean onPreferenceChange(Preference arg0, Object arg1) {
    // TODO Auto-generated method stub
    return true;
  }

}

Java Source Code List

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