/android/export-contacts

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/*
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 * WizardActivity.java
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 *
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 * Copyright (C) 2010 Tim Marston <tim@ed.am>
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 *
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 * This file is part of the Export Contacts program (hereafter referred
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 * to as "this program").  For more information, see
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 * http://ed.am/dev/android/export-contacts
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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package am.ed.exportcontacts;
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import android.app.Activity;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.Button;
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public class WizardActivity extends Activity
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{
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	private Class< ? > _nextClass;
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	@Override
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	protected void onCreate( Bundle savedInstanceState )
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	{
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		super.onCreate( savedInstanceState );
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		// enable back button based on intent data
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		Bundle extras = getIntent().getExtras();
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		if( extras != null )//&& extras.getBoolean( "back-enabled" ) )
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			( (Button)findViewById( R.id.back ) ).setEnabled( true );
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		// set up next button
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		Button next = (Button)findViewById( R.id.next );
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		next.setOnClickListener( new View.OnClickListener() {
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			public void onClick( View view ) {
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				onNext();
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			}
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		} );
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		// set up back button
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		Button back = (Button)findViewById( R.id.back );
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		back.setOnClickListener( new View.OnClickListener() {
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			public void onClick( View view ) {
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				onBack();
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			}
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		} );
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	}
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	@Override
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	protected void  onActivityResult( int requestCode, int resultCode, Intent data )
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	{
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		if( resultCode == RESULT_OK ) {
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			setResult( RESULT_OK );
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			finish();
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		}
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	}
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	protected void onNext()
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	{
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		// create bundle with back enabled state
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		Bundle bundle = new Bundle();
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		bundle.putBoolean( "back-enabled", true );
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		Intent i = new Intent( this, _nextClass );
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		i.putExtras( bundle );
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		// start next activity
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		startActivityForResult( i, 0 );
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	}
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	protected void onBack()
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	{
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		setResult( RESULT_CANCELED );
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		finish();
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	}
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	protected void setNextActivity( Class< ? > cls )
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	{
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		_nextClass = cls;
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		// enable next button
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		( (Button)findViewById( R.id.next ) ).setEnabled( true );
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	}
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	public SharedPreferences getSharedPreferences()
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	{
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		return super.getSharedPreferences( "ExportContacts", 0 );
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	}
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}