| /* |
| * Copyright (C) 2006 The Android Open Source Project |
| * |
| * 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 android.text.format; |
| |
| import android.content.Context; |
| import android.net.NetworkUtils; |
| |
| /** |
| * Utility class to aid in formatting common values that are not covered |
| * by {@link java.util.Formatter} |
| */ |
| public final class Formatter { |
| |
| /** |
| * Formats a content size to be in the form of bytes, kilobytes, megabytes, etc |
| * |
| * @param context Context to use to load the localized units |
| * @param number size value to be formatted |
| * @return formatted string with the number |
| */ |
| public static String formatFileSize(Context context, long number) { |
| return formatFileSize(context, number, false); |
| } |
| |
| /** |
| * Like {@link #formatFileSize}, but trying to generate shorter numbers |
| * (showing fewer digits of precision). |
| */ |
| public static String formatShortFileSize(Context context, long number) { |
| return formatFileSize(context, number, true); |
| } |
| |
| private static String formatFileSize(Context context, long number, boolean shorter) { |
| if (context == null) { |
| return ""; |
| } |
| |
| float result = number; |
| int suffix = com.android.internal.R.string.byteShort; |
| if (result > 900) { |
| suffix = com.android.internal.R.string.kilobyteShort; |
| result = result / 1024; |
| } |
| if (result > 900) { |
| suffix = com.android.internal.R.string.megabyteShort; |
| result = result / 1024; |
| } |
| if (result > 900) { |
| suffix = com.android.internal.R.string.gigabyteShort; |
| result = result / 1024; |
| } |
| if (result > 900) { |
| suffix = com.android.internal.R.string.terabyteShort; |
| result = result / 1024; |
| } |
| if (result > 900) { |
| suffix = com.android.internal.R.string.petabyteShort; |
| result = result / 1024; |
| } |
| String value; |
| if (result < 1) { |
| value = String.format("%.2f", result); |
| } else if (result < 10) { |
| if (shorter) { |
| value = String.format("%.1f", result); |
| } else { |
| value = String.format("%.2f", result); |
| } |
| } else if (result < 100) { |
| if (shorter) { |
| value = String.format("%.0f", result); |
| } else { |
| value = String.format("%.2f", result); |
| } |
| } else { |
| value = String.format("%.0f", result); |
| } |
| return context.getResources(). |
| getString(com.android.internal.R.string.fileSizeSuffix, |
| value, context.getString(suffix)); |
| } |
| |
| /** |
| * Returns a string in the canonical IP format ###.###.###.### from a packed integer containing |
| * the IP address. The IP address is expected to be in little-endian format (LSB first). That |
| * is, 0x01020304 will return "4.3.2.1". |
| * |
| * @param ipv4Address the IP address as a packed integer with LSB first. |
| * @return string with canonical IP address format. |
| * |
| * @deprecated this method doesn't support IPv6 addresses. Prefer {@link |
| * java.net.InetAddress#getHostAddress()}, which supports both IPv4 and |
| * IPv6 addresses. |
| */ |
| @Deprecated |
| public static String formatIpAddress(int ipv4Address) { |
| return NetworkUtils.intToInetAddress(ipv4Address).getHostAddress(); |
| } |
| } |