要解决Android Room迁移未正确处理的问题,可以按照以下步骤进行操作:
dependencies {
// 其他依赖项
implementation "androidx.room:room-runtime:2.3.0"
annotationProcessor "androidx.room:room-compiler:2.3.0"
}
@Database(entities = [YourEntity::class], version = 2)
abstract class YourDatabase : RoomDatabase() {
// 其他代码
companion object {
private const val DATABASE_NAME = "your_database.db"
val MIGRATION_1_2: Migration = object : Migration(1, 2) {
override fun migrate(database: SupportSQLiteDatabase) {
// 迁移逻辑
}
}
fun getInstance(context: Context): YourDatabase {
return Room.databaseBuilder(context, YourDatabase::class.java, DATABASE_NAME)
.addMigrations(MIGRATION_1_2)
.build()
}
}
}
val yourDatabase = YourDatabase.getInstance(applicationContext)
通过按照上述步骤,您可以确保Room迁移被正确处理,并且在数据库版本升级时,迁移逻辑将被执行。