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| 1 | +/** |
| 2 | + * Copyright 2014 Zhenguo Jin (jingle1267@163.com) |
| 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 | +package com.worthed.utils; |
| 17 | + |
| 18 | +import android.content.Context; |
| 19 | +import android.os.Environment; |
| 20 | +import android.text.TextUtils; |
| 21 | + |
| 22 | +/** |
| 23 | + * 应用数据库导出工具类 |
| 24 | + * |
| 25 | + * @author jingle1267@163.com |
| 26 | + * |
| 27 | + */ |
| 28 | +public class DatabaseExportUtils { |
| 29 | + |
| 30 | + private static final boolean DEBUG = true; |
| 31 | + private static final String TAG = "DatabaseExportUtils"; |
| 32 | + |
| 33 | + /** |
| 34 | + * 开始导出数据 此操作比较耗时,建议在线程中进行 |
| 35 | + * |
| 36 | + * @param context |
| 37 | + * @param targetFile |
| 38 | + * 目标文件 |
| 39 | + * @param databaseName |
| 40 | + * 要拷贝的数据库文件名 |
| 41 | + * @return |
| 42 | + */ |
| 43 | + public boolean startExportDatabase(Context context, String targetFile, |
| 44 | + String databaseName) { |
| 45 | + if (DEBUG) { |
| 46 | + LogUtils.d(TAG, "start export ..."); |
| 47 | + } |
| 48 | + if (!Environment.MEDIA_MOUNTED.equals(Environment |
| 49 | + .getExternalStorageState())) { |
| 50 | + if (DEBUG) { |
| 51 | + LogUtils.w(TAG, "cannot find SDCard"); |
| 52 | + } |
| 53 | + return false; |
| 54 | + } |
| 55 | + String sourceFilePath = Environment.getDataDirectory() + "/data/" |
| 56 | + + context.getPackageName() + "/databases/" + databaseName; |
| 57 | + String destFilePath = Environment.getExternalStorageDirectory() |
| 58 | + + (TextUtils.isEmpty(targetFile) ? (context.getPackageName() + ".db") |
| 59 | + : targetFile); |
| 60 | + boolean isCopySuccess = FileUtils |
| 61 | + .copyFile(sourceFilePath, destFilePath); |
| 62 | + if (DEBUG) { |
| 63 | + if (isCopySuccess) { |
| 64 | + LogUtils.d(TAG, "copy database file success. target file : " |
| 65 | + + destFilePath); |
| 66 | + } else { |
| 67 | + LogUtils.w(TAG, "copy database file failure"); |
| 68 | + } |
| 69 | + } |
| 70 | + return isCopySuccess; |
| 71 | + } |
| 72 | +} |
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