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  • Committer: edam
  • Date: 2009-01-10 16:14:11 UTC
  • Revision ID: edam@waxworlds.org-20090110161411-4d17l9hs9d6j277q
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src/org/waxworlds/importcontacts/ImportContacts.java
 
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package org.waxworlds.importcontacts;
 
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import java.util.Stack;
 
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import android.app.Activity;
 
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import android.content.Intent;
 
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import android.os.Bundle;
 
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public class ImportContacts extends Activity
 
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{
 
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        public static final int STATE_NONE = 0;
 
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        public static final int STATE_IMPORT_VCF = 1;
 
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        public static final int STATE_MERGE = 2;
 
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        public static final int STATE_DOIT = 3;
 
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        private Stack< Integer > _stateStack;
 
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        /** Called when the activity is first created. */
 
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        @Override
 
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    public void onCreate(Bundle savedInstanceState)
 
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    {
 
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                super.onCreate(savedInstanceState);
 
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                _stateStack = new Stack< Integer >();
 
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                startState( STATE_IMPORT_VCF );
 
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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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                super.onActivityResult(requestCode, resultCode, data);
 
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                // quit?
 
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                if( resultCode == RESULT_CANCELED ) {
 
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                        finish();
 
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                }
 
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                else {
 
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                        int newState = STATE_NONE;
 
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                        if( data != null ) {
 
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                                Bundle extras = data.getExtras();
 
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                                if( extras != null ) {
 
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                                        Integer tmp = extras.getInt( "nextstate" );
 
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                                        if( tmp != null ) {
 
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                                                newState = tmp.intValue();
 
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                                        }
 
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                                }
 
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                        }
 
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                        startState( newState );
 
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                }
 
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        }
 
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        private void startState( int newState )
 
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        {
 
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                if( newState == STATE_NONE )
 
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                {
 
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                        // we're going back, so pop top state off stack
 
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                        _stateStack.pop();
 
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                        newState = ( (Integer)_stateStack.peek() ).intValue();
 
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                }
 
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                else
 
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                {
 
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                        // push new state on state
 
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                        _stateStack.push( new Integer( newState ) );
 
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                }
 
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                // figure out the class
 
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                Class cls = null;
 
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                switch( newState ) {
 
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                case STATE_IMPORT_VCF: cls = ImportVCF.class; break;
 
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                case STATE_MERGE: cls = Merge.class; break;
 
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                case STATE_DOIT: cls = Doit.class; break;
 
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                }
 
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                // start activity
 
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                Intent i = new Intent( this, cls );
 
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                if( _stateStack.size() > 1 ) i.putExtra( "backstate", true );
 
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                startActivityForResult( i, 0 );
 
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        }
 
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}
 
 
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