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/* * Copyright (C) 2011 Michael Imamura/*w w w .j ava 2 s. co 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 org.lugatgt.zoogie.present.ui; import android.app.Fragment; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.RelativeLayout; import org.lugatgt.zoogie.present.Presentation; import org.lugatgt.zoogie.present.R; /** * Base class for the fragment for a slide. * @author Michael Imamura */ public abstract class SlideFragment extends Fragment { private Presentation presentation; // FIELD ACCESS //////////////////////////////////////////////////////////// /** * Retrieve the presentation this slide fragment is attached to (if any). * @return The presentation, or null if this slide is not the active (visible) * slide. */ protected Presentation getPresentation() { return presentation; } // LIFECYCLE /////////////////////////////////////////////////////////////// @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { RelativeLayout view = (RelativeLayout)inflater.inflate(R.layout.slide, null); View contentView = onCreateContentView(inflater, view, savedInstanceState); if (contentView != null) { FrameLayout contentFrame = (FrameLayout)view.findViewById(R.id.contentFrame); contentFrame.addView(contentView); } return view; } /** * Called when this fragment is attached to the presentation. * <p> * This occurs before the fragment about to become the active * (visible) slide, before the fragment is attached to the activity. * * @param presentation The active presentation this slide is becoming part of. */ public void onAttachToPresentation(Presentation presentation) { this.presentation = presentation; } /** * Called when this fragment is detached from the presentation. * <p> * This occurs when the fragment is no longer the active (visible) slide, * before the fragment is detached from the activity. */ public void onDetachFromPresentation() { presentation = null; } // CONTENT ///////////////////////////////////////////////////////////////// protected abstract View onCreateContentView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState); }