1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.storagemanager.utils; 18 19 import android.content.Context; 20 import android.graphics.drawable.Drawable; 21 import android.webkit.MimeTypeMap; 22 23 import java.io.File; 24 25 /** 26 * IconProvider is a class for getting file icons. It is strongly based upon the DocumentsUI 27 * implementation of IconUtils, but tailored for the Deletion Helper use-case. Useful for testing. 28 */ 29 public class IconProvider { 30 private Context mContext; 31 32 public IconProvider(Context context) { 33 mContext = context; 34 } 35 36 /** 37 * Returns an icon which represents a file with the given MIME type. 38 * 39 * @param mimeType The MIME type of the file. 40 * @return 41 */ 42 public Drawable loadMimeIcon(String mimeType) { 43 return mContext.getContentResolver().getTypeDrawable(mimeType); 44 } 45 46 public static String getMimeType(File file) { 47 String name = file.getName(); 48 final int lastDot = name.lastIndexOf('.'); 49 if (lastDot >= 0) { 50 final String extension = name.substring(lastDot + 1); 51 final String mimeType = 52 MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension.toLowerCase()); 53 if (mimeType != null) { 54 return mimeType; 55 } 56 } 57 return "application/octet-stream"; 58 } 59 60 public static boolean isImageType(File file) { 61 String mimeType = getMimeType(file); 62 return mimeType.startsWith("image/"); 63 } 64 65 } 66
