Java tutorial
/* * Copyright (C) 2015 Federico Iosue (federico.iosue@gmail.com) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.dycody.android.idealnote.utils; import android.content.Context; import android.graphics.Bitmap; import android.media.ThumbnailUtils; import android.net.Uri; import android.provider.MediaStore.Images.Thumbnails; import android.text.TextUtils; import com.dycody.android.idealnote.models.Attachment; import it.feio.android.simplegallery.util.BitmapUtils; import org.apache.commons.io.FilenameUtils; public class BitmapHelper { /** * Retrieves a the bitmap relative to attachment based on mime type */ public static Bitmap getBitmapFromAttachment(Context mContext, Attachment mAttachment, int width, int height) { Bitmap bmp = null; String path; mAttachment.getUri().getPath(); // Video if (Constants.MIME_TYPE_VIDEO.equals(mAttachment.getMime_type())) { // Tries to retrieve full path from ContentResolver if is a new video path = StorageHelper.getRealPathFromURI(mContext, mAttachment.getUri()); // .. or directly from local directory otherwise if (path == null) { path = FileHelper.getPath(mContext, mAttachment.getUri()); } bmp = ThumbnailUtils.createVideoThumbnail(path, Thumbnails.MINI_KIND); if (bmp == null) { return null; } else { bmp = BitmapUtils.createVideoThumbnail(mContext, bmp, width, height); } // Image } else if (Constants.MIME_TYPE_IMAGE.equals(mAttachment.getMime_type()) || Constants.MIME_TYPE_SKETCH.equals(mAttachment.getMime_type())) { try { bmp = BitmapUtils.getThumbnail(mContext, mAttachment.getUri(), width, height); } catch (NullPointerException e) { bmp = null; } // Audio } else if (Constants.MIME_TYPE_AUDIO.equals(mAttachment.getMime_type())) { bmp = ThumbnailUtils .extractThumbnail( BitmapUtils.decodeSampledBitmapFromResourceMemOpt(mContext.getResources() .openRawResource(com.dycody.android.idealnote.R.raw.play), width, height), width, height); // File } else if (Constants.MIME_TYPE_FILES.equals(mAttachment.getMime_type())) { // vCard if (Constants.MIME_TYPE_CONTACT_EXT.equals(FilenameUtils.getExtension(mAttachment.getName()))) { bmp = ThumbnailUtils .extractThumbnail( BitmapUtils.decodeSampledBitmapFromResourceMemOpt(mContext.getResources() .openRawResource(com.dycody.android.idealnote.R.raw.vcard), width, height), width, height); } else { bmp = ThumbnailUtils .extractThumbnail( BitmapUtils.decodeSampledBitmapFromResourceMemOpt(mContext.getResources() .openRawResource(com.dycody.android.idealnote.R.raw.files), width, height), width, height); } } return bmp; } public static Uri getThumbnailUri(Context mContext, Attachment mAttachment) { Uri uri = mAttachment.getUri(); String mimeType = StorageHelper.getMimeType(uri.toString()); if (!TextUtils.isEmpty(mimeType)) { String type = mimeType.split("/")[0]; String subtype = mimeType.split("/")[1]; switch (type) { case "image": case "video": // Nothing to do, bitmap will be retrieved from this break; case "audio": uri = Uri.parse("android.resource://" + mContext.getPackageName() + "/" + com.dycody.android.idealnote.R.raw.play); break; default: int drawable = "x-vcard".equals(subtype) ? com.dycody.android.idealnote.R.raw.vcard : com.dycody.android.idealnote.R.raw.files; uri = Uri.parse("android.resource://" + mContext.getPackageName() + "/" + drawable); break; } } else { uri = Uri.parse("android.resource://" + mContext.getPackageName() + "/" + com.dycody.android.idealnote.R.raw.files); } return uri; } }