Java tutorial
/* * Copyright 2012 The Android Open Source Project * * 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 it.feio.android.simplegallery; import it.feio.android.simplegallery.async.ImageLoadTask; import it.feio.android.simplegallery.util.Display; import it.feio.android.simplegallery.views.TouchImageView; import android.annotation.SuppressLint; import android.graphics.Point; import android.os.AsyncTask; import android.os.Build; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class GalleryPagerFragment extends Fragment { /** * The argument key for the page number this fragment represents. */ public static final String ARG_PAGE = "page"; /** * The argument key for the image path that must be loaded. */ public static final String ARG_PATH = "path"; /** * The fragment's page number, which is set to the argument value for {@link #ARG_PAGE}. */ private int mPageNumber; /** * The fragment's image path, which is set to the argument value for {@link #ARG_PATH}. */ private String mImagePath; /** * Factory method for this fragment class. Constructs a new fragment for the given page number. * @param imagePath */ public static GalleryPagerFragment create(int pageNumber, String imagePath) { GalleryPagerFragment fragment = new GalleryPagerFragment(); Bundle args = new Bundle(); args.putInt(ARG_PAGE, pageNumber); args.putString(ARG_PATH, imagePath); fragment.setArguments(args); return fragment; } public GalleryPagerFragment() { } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mPageNumber = getArguments().getInt(ARG_PAGE); mImagePath = getArguments().getString(ARG_PATH); } @Override @SuppressLint("NewApi") public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { TouchImageView rootView = new TouchImageView(getActivity()); Point dimensions = Display.getUsableSize(getActivity()); if (Build.VERSION.SDK_INT >= 11) { new ImageLoadTask(getActivity(), rootView, dimensions.x, dimensions.y) .executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, mImagePath); } else { new ImageLoadTask(getActivity(), rootView, dimensions.x, dimensions.y).execute(mImagePath); } return rootView; } /** * Returns the page number represented by this fragment object. */ public int getPageNumber() { return mPageNumber; } }