feat: implement pagination for CleanAPK search results (b56d46ca) · Commits · e / os / App Lounge

app/build.gradle

+2 −0

Original line number	Diff line number	Diff line
		@@ -268,6 +268,7 @@ dependencies {
		implementation(libs.navigation.fragment.ktx)
		implementation(libs.navigation.ui.ktx)
		implementation(libs.activity.ktx)
		implementation(libs.paging.runtime.ktx)

		// Material Design
		implementation(libs.material)
		@@ -358,6 +359,7 @@ dependencies {
		implementation libs.activity.compose
		implementation libs.lifecycle.viewmodel.compose
		implementation libs.runtime.livedata
		implementation libs.paging.compose

		// Android Studio Preview support for Compose
		implementation libs.compose.ui.tooling.preview

app/src/main/java/foundation/e/apps/data/cleanapk/CleanApkSearchHelper.kt

+37 −5

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@
		package foundation.e.apps.data.cleanapk

		import foundation.e.apps.data.application.data.Application
		import foundation.e.apps.data.cleanapk.data.search.Search
		import foundation.e.apps.data.cleanapk.repositories.NUMBER_OF_ITEMS
		import foundation.e.apps.data.cleanapk.repositories.NUMBER_OF_PAGES
		import foundation.e.apps.data.enums.Source
		@@ -36,16 +37,47 @@ class CleanApkSearchHelper @Inject constructor(
		appType: String
		): List<Application> {
		return withContext(Dispatchers.IO) {
		val searchResult = cleanApkRetrofit.searchApps(
		getSearchResultPage(
		keyword = keyword,
		appSource = appSource,
		appType = appType,
		page = NUMBER_OF_PAGES,
		pageSize = NUMBER_OF_ITEMS,
		).apps
		}
		}

		suspend fun getSearchResultPage(
		keyword: String,
		appSource: String,
		appType: String,
		page: Int,
		pageSize: Int,
		): Search {
		return withContext(Dispatchers.IO) {
		val response = cleanApkRetrofit.searchApps(
		keyword = keyword,
		source = appSource,
		type = appType,
		nres = NUMBER_OF_ITEMS,
		page = NUMBER_OF_PAGES,
		nres = pageSize,
		page = page,
		architectures = SystemInfoProvider.getSupportedArchitectureList(),
		)
		searchResult.body()?.apps.orEmpty()
		.map { it.apply { source = mapSource(it) } }

		check(response.isSuccessful) {
		"CleanAPK search failed: HTTP ${response.code()}"
		}

		val body = checkNotNull(response.body()) {
		"CleanAPK search failed: empty body"
		}

		check(body.success) {
		"CleanAPK search failed: success=false"
		}

		body.apps.forEach { app -> app.source = mapSource(app) }
		body
		}
		}

app/src/main/java/foundation/e/apps/data/cleanapk/data/search/Search.kt

+3 −2

Original line number	Diff line number	Diff line
		/*
		* Apps Quickly and easily install Android apps onto your device!
		* Copyright (C) 2021 E FOUNDATION
		* Copyright (C) 2021-2026 e Foundation
		*
		* This program is free software: you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		@@ -14,6 +13,7 @@
		*
		* You should have received a copy of the GNU General Public License
		* along with this program. If not, see <https://www.gnu.org/licenses/>.
		*
		*/

		package foundation.e.apps.data.cleanapk.data.search
		@@ -23,5 +23,6 @@ import foundation.e.apps.data.application.data.Application
		data class Search(
		val apps: List<Application> = emptyList(),
		val numberOfResults: Int = -1,
		val pages: Int = 0,
		val success: Boolean = false
		)

app/src/main/java/foundation/e/apps/data/search/CleanApkSearchPagingRepository.kt

0 → 100644

+48 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2026 e Foundation
		*
		* This program is free software: you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation, either version 3 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program. If not, see <https://www.gnu.org/licenses/>.
		*
		*/

		package foundation.e.apps.data.search

		import androidx.paging.Pager
		import androidx.paging.PagingConfig
		import androidx.paging.PagingData
		import foundation.e.apps.data.application.data.Application
		import foundation.e.apps.data.cleanapk.CleanApkSearchHelper
		import kotlinx.coroutines.flow.Flow
		import javax.inject.Inject

		class CleanApkSearchPagingRepository @Inject constructor(
		private val cleanApkSearchHelper: CleanApkSearchHelper,
		) : SearchPagingRepository {

		override fun cleanApkSearch(params: CleanApkSearchParams): Flow<PagingData<Application>> {
		return Pager(
		config = PagingConfig(
		pageSize = params.pageSize,
		enablePlaceholders = false,
		prefetchDistance = 2
		),
		pagingSourceFactory = {
		CleanApkSearchPagingSource(
		cleanApkSearchHelper = cleanApkSearchHelper,
		params = params
		)
		}
		).flow
		}
		}

app/src/main/java/foundation/e/apps/data/search/CleanApkSearchPagingSource.kt

0 → 100644

+77 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2026 e Foundation
		*
		* This program is free software: you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation, either version 3 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program. If not, see <https://www.gnu.org/licenses/>.
		*
		*/

		package foundation.e.apps.data.search

		import androidx.paging.PagingSource
		import androidx.paging.PagingState
		import foundation.e.apps.data.application.data.Application
		import foundation.e.apps.data.cleanapk.CleanApkSearchHelper
		import retrofit2.HttpException
		import java.io.IOException

		private const val INITIAL_PAGE = 1

		class CleanApkSearchPagingSource(
		private val cleanApkSearchHelper: CleanApkSearchHelper,
		private val params: CleanApkSearchParams,
		) : PagingSource<Int, Application>() {

		override fun getRefreshKey(state: PagingState<Int, Application>): Int? {
		val anchor = state.anchorPosition ?: return null
		val anchorPage = state.closestPageToPosition(anchor)
		val prev = anchorPage?.prevKey
		val next = anchorPage?.nextKey
		return when {
		prev != null -> prev + 1
		next != null -> next - 1
		else -> null
		}
		}

		override suspend fun load(params: LoadParams<Int>): LoadResult<Int, Application> {
		return try {
		val page = params.key ?: INITIAL_PAGE
		val response = cleanApkSearchHelper.getSearchResultPage(
		keyword = this.params.keyword,
		appSource = this.params.appSource,
		appType = this.params.appType,
		page = page,
		pageSize = this.params.pageSize,
		)

		val totalPages = response.pages
		val data = response.apps

		val nextKey = if (page < totalPages) page + 1 else null
		val prevKey = if (page > INITIAL_PAGE) page - 1 else null

		LoadResult.Page(
		data = data,
		prevKey = prevKey,
		nextKey = nextKey
		)
		} catch (exception: IOException) {
		LoadResult.Error(exception)
		} catch (exception: HttpException) {
		LoadResult.Error(exception)
		} catch (exception: IllegalStateException) {
		LoadResult.Error(exception)
		}
		}
		}