Java tutorial
/* * Copyright 2016, 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 dev.ngai.fantastic.utils; import android.content.Context; import android.content.Intent; import android.support.annotation.NonNull; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentTransaction; import com.umeng.analytics.MobclickAgent; import java.util.ArrayList; import java.util.List; import dev.ngai.fantastic.R; import dev.ngai.fantastic.business.picturebrowse.PictureBrowseActivity; import dev.ngai.fantastic.business.picturebrowse.PictureBrowsePresenter; import dev.ngai.fantastic.data.Discover; import dev.ngai.fantastic.data.Imginfo; import static com.google.common.base.Preconditions.checkNotNull; /** * This provides methods to help Activities load their UI. */ public class ActivityUtils { /** * The {@code fragment} is added to the container view with id {@code frameId}. The operation is * performed by the {@code fragmentManager}. */ public static void addFragmentToActivity(@NonNull FragmentManager fragmentManager, @NonNull Fragment fragment, int frameId) { checkNotNull(fragmentManager); checkNotNull(fragment); FragmentTransaction transaction = fragmentManager.beginTransaction(); transaction.add(frameId, fragment); transaction.commit(); } public static void startPictureBrowseActivity(@NonNull Context context, @NonNull int discoverId, @NonNull List<Imginfo> imgs, @NonNull int index, @NonNull int itemPosition, @NonNull String tab) { MobclickAgent.onEvent(context, "PictureBrowse-" + tab + "-discoverId(" + discoverId + ")"); Intent intent = new Intent(context, PictureBrowseActivity.class); ArrayList<Imginfo> list = new ArrayList<>(); list.addAll(imgs); intent.putParcelableArrayListExtra(PictureBrowsePresenter.PICTURE_DATA, list); // intent.putStringArrayListExtra(PictureBrowsePresenter.PICTURE_DATA, list); intent.putExtra(PictureBrowsePresenter.PICTURE_INDEX, index); intent.putExtra(PictureBrowsePresenter.PICTURE_OBJ_ID, discoverId); intent.putExtra(PictureBrowsePresenter.PICTURE_ITEM_POSITION, itemPosition); context.startActivity(intent); } }