Java tutorial
/* * Copyright 2013 - learnNcode (learnncode@gmail.com) * * 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.wiz.dev.wiztalk.fragment; import java.util.ArrayList; import java.util.Map; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ListView; import com.wiz.dev.wiztalk.R; import com.wiz.dev.wiztalk.activity.LocalFileSelectActivity; import com.wiz.dev.wiztalk.adapter.MediaSelectAdapter; import com.wiz.dev.wiztalk.dto.model.MediaModel; public class VideoFragment extends Fragment { private final static Uri MEDIA_EXTERNAL_CONTENT_URI = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; private MediaSelectAdapter mVideoAdapter; private ListView mVideoGridView; private Cursor mCursor; private ArrayList<MediaModel> mGalleryModelList; private View mView; LocalFileSelectActivity menuActvity; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); menuActvity = (LocalFileSelectActivity) getActivity(); } @Override public void onStart() { super.onStart(); menuActvity.currentFragment = this; } public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { mView = inflater.inflate(R.layout.fragment_video_chooser, null); mVideoGridView = (ListView) mView.findViewById(R.id.gridViewFromMediaChooser); initVideos(); return mView; } ; public void initVideos() { try { final String orderBy = MediaStore.Video.Media.DATE_TAKEN; mCursor = getActivity().getContentResolver().query(MEDIA_EXTERNAL_CONTENT_URI, null, null, null, orderBy + " DESC"); setAdapter(); } catch (Exception e) { e.printStackTrace(); } } private void setAdapter() { int count = mCursor.getCount(); if (count > 0) { mCursor.moveToFirst(); mGalleryModelList = new ArrayList<MediaModel>(); for (int i = 0; i < count; i++) { mCursor.moveToPosition(i); String url = mCursor.getString(mCursor.getColumnIndex(MediaStore.Video.Media.DATA)); String name = mCursor.getString(mCursor.getColumnIndex(MediaStore.Video.Media.DISPLAY_NAME)); String size = mCursor.getString(mCursor.getColumnIndex(MediaStore.Video.Media.SIZE)); long addTime = mCursor.getLong(mCursor.getColumnIndex(MediaStore.Video.Media.DATE_ADDED)); mGalleryModelList.add(new MediaModel(url, name, Integer.valueOf(size), addTime, true)); } mVideoAdapter = new MediaSelectAdapter(getActivity(), mGalleryModelList); mVideoGridView.setAdapter(mVideoAdapter); mVideoGridView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { MediaSelectAdapter adapter = (MediaSelectAdapter) parent.getAdapter(); MediaModel galleryModel = (MediaModel) adapter.getItem(position); adapter.addSelect(position, galleryModel); } }); } } public ArrayList<MediaModel> getData() { Map<Integer, MediaModel> map = mVideoAdapter.getSelectMediaModel(); if (map != null) { ArrayList<MediaModel> models = new ArrayList<MediaModel>(); for (Map.Entry<Integer, MediaModel> fileEntry : map.entrySet()) { models.add(fileEntry.getValue()); } return models; } return null; } }