我想将来自 api 的图像存储到房间数据库中。我从 api 接收数据和图像。当我处于在线模式时,图像是使用 api 提供的 url 加载的,但当离线时,图像应该以离线模式从数据库中存储和检索。
我像这样加载图像(它加载图像):----
if (!data.data.images.isNullOrEmpty()) {
val base = BuildConfig.SERVER_URL.replace("api/", "")
data.data.images.forEachIndexed { pos, it ->
Glide.with(this)
.asBitmap()
.load(base + it?.imagePath)
.into(object : CustomTarget<Bitmap>() {
override fun onResourceReady(
resource: Bitmap,
transition: Transition<in Bitmap>?
) {
imageClick = pos + 1
val file = File(
getExternalFilesDir(Environment.DIRECTORY_PICTURES),
"${System.currentTimeMillis()}${Constants.PROFILE_PIC_FILE_EXTENSION}"
)
imagePath = file.absolutePath
Utils.saveBitmapToFile(resource, imagePath)
Utils.compressImage(imagePath)
onCropImageResult(resource)
}
override fun onLoadCleared(placeholder: Drawable?) {
}
})
}
}
我的 JSON 是这样的:--------
"data" : {
.
.
.
"images" : [ {
"assetImageId" : 4113,
"transactionTypeId" : 2,
"transactionId" : 88341,
"imageURL" : "",
"imagePath" : "UserData/AssetImages/INS-0000017673_1616058387618.jpg",
"createdBy" : 0,
"createdOn" : "0001-01-01T00:00:00",
"updatedBy" : null,
"updatedOn" : null,
"isActive" : 0,
"isNew" : false,
"isDeleted" : false,
"isChanged" : false,
"timestamp" : null
}, {
"assetImageId" : 4114,
"transactionTypeId" : 2,
"transactionId" : 88341,
"imageURL" : "",
"imagePath" : "UserData/AssetImages/INS-0000017673_1616058402212.jpg",
"createdBy" : 0,
"createdOn" : "0001-01-01T00:00:00",
"updatedBy" : null,
"updatedOn" : null,
"isActive" : 0,
"isNew" : false,
"isDeleted" : false,
"isChanged" : false,
"timestamp" : null
} ],
}
我的实体表:---
@Entity(tableName = DatabaseConstants.MYTABLE, indices = [Index(value = ["requestId"], unique = true)])
data class AllocationDetailsByIdEntity(
var requestId: String? = null,
var subLocation: String? = null,
var amsTagId: String? = null,
var status: String? = null,
var installedBy: String? = null,
var installedDate: String? = null,
val assetTree: String? = null,
var images: List<ImagesssItem?>? =null,
@PrimaryKey(autoGenerate = true) var id: Int? = null
): Serializable
@Entity
data class ImagesssItem (
var assetImageId :String?= null,
var transactionTypeId: Int? = null,
var transactionId: Int? = null,
var imageURL: String? = null,
var imagePath: String? = null
@PrimaryKey(autoGenerate = true) var id : Int? = null
):Serializable
尝试了解决方案 1:--这不起作用
.diskCacheStrategy(DiskCacheStrategy.DATA)
知道如何使用 Room db 存储这些图像吗?
需要帮忙 ...
提前致谢