1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277
| import android.annotation.SuppressLint; import android.content.ContentUris; import android.content.Context; import android.database.Cursor; import android.net.Uri; import android.os.Build; import android.os.Environment; import android.provider.DocumentsContract; import android.provider.MediaStore; import android.provider.OpenableColumns; import android.support.annotation.NonNull; import android.support.annotation.Nullable;
import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream;
public class PickUtils {
public static final String DOCUMENTS_DIR = "documents";
@SuppressLint("NewApi") public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { if (isExternalStorageDocument(uri)) { final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0];
if ("primary".equalsIgnoreCase(type)) { return Environment.getExternalStorageDirectory() + "/" + split[1]; } } else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
if (id != null && id.startsWith("raw:")) { return id.substring(4); }
String[] contentUriPrefixesToTry = new String[]{ "content://downloads/public_downloads", "content://downloads/my_downloads" };
for (String contentUriPrefix : contentUriPrefixesToTry) { Uri contentUri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), Long.valueOf(id)); try { String path = getDataColumn(context, contentUri, null, null); if (path != null && !path.equals("")) { return path; } } catch (Exception e) { } }
String fileName = getFileName(context, uri); File cacheDir = getDocumentCacheDir(context); File file = generateFileName(fileName, cacheDir); String destinationPath = null; if (file != null) { destinationPath = file.getAbsolutePath(); saveFileFromUri(context, uri, destinationPath); }
return destinationPath; } else if (isMediaDocument(uri)) { final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0];
Uri contentUri = null; if ("image".equals(type)) { contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; } else if ("video".equals(type)) { contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; } else if ("audio".equals(type)) { contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; }
final String selection = "_id=?"; final String[] selectionArgs = new String[]{split[1]};
return getDataColumn(context, contentUri, selection, selectionArgs); } } else if ("content".equalsIgnoreCase(uri.getScheme())) { String path = getDataColumn(context, uri, null, null); if (path != null && !path.equals("")) return path;
String fileName = getFileName(context, uri); File cacheDir = getDocumentCacheDir(context); File file = generateFileName(fileName, cacheDir); String destinationPath = null; if (file != null) { destinationPath = file.getAbsolutePath(); saveFileFromUri(context, uri, destinationPath); } return destinationPath; } else if ("file".equalsIgnoreCase(uri.getScheme())) { return uri.getPath(); } return null; }
public static boolean isExternalStorageDocument(Uri uri) { return "com.android.externalstorage.documents".equals(uri.getAuthority()); }
public static boolean isDownloadsDocument(Uri uri) { return "com.android.providers.downloads.documents".equals(uri.getAuthority()); }
public static boolean isMediaDocument(Uri uri) { return "com.android.providers.media.documents".equals(uri.getAuthority()); }
public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null; final String column = "_data"; final String[] projection = {column}; String path = ""; try { cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null); if (cursor != null && cursor.moveToFirst()) { final int column_index = cursor.getColumnIndexOrThrow(column); path = cursor.getString(column_index); return path; } } catch (Exception e) { e.printStackTrace(); } finally { if (cursor != null) cursor.close(); } return path; }
public static String getFileName(@NonNull Context context, Uri uri) { String mimeType = context.getContentResolver().getType(uri); String filename = null;
if (mimeType == null && context != null) { String path = getPath(context, uri); if (path == null) { filename = getName(uri.toString()); } else { File file = new File(path); filename = file.getName(); } } else { Cursor returnCursor = context.getContentResolver().query(uri, null, null, null, null); if (returnCursor != null) { int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME); returnCursor.moveToFirst(); filename = returnCursor.getString(nameIndex); returnCursor.close(); } }
return filename; }
public static String getName(String filename) { if (filename == null) { return null; } int index = filename.lastIndexOf('/'); return filename.substring(index + 1); }
public static File getDocumentCacheDir(@NonNull Context context) { File dir = new File(context.getCacheDir(), DOCUMENTS_DIR); if (!dir.exists()) { dir.mkdirs(); }
return dir; }
@Nullable public static File generateFileName(@Nullable String name, File directory) { if (name == null) { return null; }
File file = new File(directory, name);
if (file.exists()) { String fileName = name; String extension = ""; int dotIndex = name.lastIndexOf('.'); if (dotIndex > 0) { fileName = name.substring(0, dotIndex); extension = name.substring(dotIndex); }
int index = 0;
while (file.exists()) { index++; name = fileName + '(' + index + ')' + extension; file = new File(directory, name); } }
try { if (!file.createNewFile()) { return null; } } catch (IOException e) { return null; }
return file; }
private static void saveFileFromUri(Context context, Uri uri, String destinationPath) { InputStream is = null; BufferedOutputStream bos = null; try { is = context.getContentResolver().openInputStream(uri); bos = new BufferedOutputStream(new FileOutputStream(destinationPath, false)); byte[] buf = new byte[1024]; is.read(buf); do { bos.write(buf); } while (is.read(buf) != -1); } catch (IOException e) { e.printStackTrace(); } finally { try { if (is != null) is.close(); if (bos != null) bos.close(); } catch (IOException e) { e.printStackTrace(); } } } }
|