Java tutorial
/******************************************************************************* * Copyright 2014 Sergey Tarasevich * * 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 com.vanrui.MediaPaltform.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.view.Window; import android.widget.ImageView; import com.vanrui.MediaPaltform.Constants; import com.vanrui.MediaPaltform.Fragment.ImageGridFragment; import com.vanrui.MediaPaltform.Fragment.ImagePagerFragment; import com.vanrui.MediaPaltform.R; /** * @author Sergey Tarasevich (nostra13[at]gmail[dot]com) */ public class SimpleImageActivity extends FragmentActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.requestWindowFeature(Window.FEATURE_NO_TITLE); int frIndex = getIntent().getIntExtra(Constants.Extra.FRAGMENT_INDEX, 0); String[] picArray = getIntent().getStringArrayExtra(Constants.Media_Type.TAG_PIC_ARRAY); Fragment fr; String tag; switch (frIndex) { default: case ImageGridFragment.VIDEO: tag = ImageGridFragment.class.getSimpleName(); fr = getSupportFragmentManager().findFragmentByTag(tag); if (fr == null) { ImageGridFragment imageGridFragmentVideo = new ImageGridFragment(); Bundle bundle = new Bundle(); bundle.putString(Constants.Media_Type.TAG, Constants.Media_Type.VIDEO); imageGridFragmentVideo.setArguments(bundle); fr = imageGridFragmentVideo; } break; case ImageGridFragment.IMAGE: tag = ImageGridFragment.class.getSimpleName(); fr = getSupportFragmentManager().findFragmentByTag(tag); if (fr == null) { ImageGridFragment imageGridFragmentVideo = new ImageGridFragment(); Bundle bundle = new Bundle(); bundle.putString(Constants.Media_Type.TAG, Constants.Media_Type.PICTURE); imageGridFragmentVideo.setArguments(bundle); fr = imageGridFragmentVideo; } break; case ImageGridFragment.WEB: tag = ImageGridFragment.class.getSimpleName(); fr = getSupportFragmentManager().findFragmentByTag(tag); if (fr == null) { ImageGridFragment imageGridFragmentVideo = new ImageGridFragment(); Bundle bundle = new Bundle(); bundle.putString(Constants.Media_Type.TAG, Constants.Media_Type.WEB); imageGridFragmentVideo.setArguments(bundle); fr = imageGridFragmentVideo; } break; case ImagePagerFragment.INDEX: tag = ImagePagerFragment.class.getSimpleName(); fr = getSupportFragmentManager().findFragmentByTag(tag); if (fr == null) { ImagePagerFragment imagePagerFragment = new ImagePagerFragment(); Bundle bundle = new Bundle(); bundle.putStringArray(Constants.Media_Type.TAG_PIC_ARRAY, picArray); imagePagerFragment.setArguments(bundle); fr = imagePagerFragment; } break; } getSupportFragmentManager().beginTransaction().replace(android.R.id.content, fr, tag).commit(); } }