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修复反射修改 mPreferencesDir 未恢复导致备份恢复后设置丢失的问题

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HapeLee
2026-05-29 01:02:17 +08:00
parent 7f8b2c205b
commit c641ce5d44
1 changed files with 6 additions and 1 deletions
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app/src/main/java/io/legado/app/utils/PreferencesExtensions.kt
+6 -1
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@@ -33,12 +33,17 @@ fun Context.getSharedPreferences(
// 获取 ContextImpl。mPreferencesDir变量，该变量保存了数据文件的保存路径 // 获取 ContextImpl。mPreferencesDir变量，该变量保存了数据文件的保存路径
val fieldMPreferencesDir = objMBase.javaClass.getDeclaredField("mPreferencesDir") val fieldMPreferencesDir = objMBase.javaClass.getDeclaredField("mPreferencesDir")
fieldMPreferencesDir.isAccessible = true fieldMPreferencesDir.isAccessible = true
// 保存原始路径
val originalDir = fieldMPreferencesDir.get(objMBase)
// 创建自定义路径 // 创建自定义路径
val file = File(dir) val file = File(dir)
// 修改mPreferencesDir变量的值 // 修改mPreferencesDir变量的值
fieldMPreferencesDir.set(objMBase, file) fieldMPreferencesDir.set(objMBase, file)
// 返回修改路径以后的 SharedPreferences :%FILE_PATH%/%fileName%.xml // 返回修改路径以后的 SharedPreferences :%FILE_PATH%/%fileName%.xml
return getSharedPreferences(fileName, Activity.MODE_PRIVATE) val sp = getSharedPreferences(fileName, Activity.MODE_PRIVATE)
// 恢复原始路径，避免后续 defaultSharedPreferences 等调用读到错误目录
fieldMPreferencesDir.set(objMBase, originalDir)
return sp
} catch (e: NoSuchFieldException) { } catch (e: NoSuchFieldException) {
e.printOnDebug() e.printOnDebug()
} catch (e: IllegalArgumentException) { } catch (e: IllegalArgumentException) {