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101 changes: 101 additions & 0 deletions
101
app/src/main/java/com/storyteller_f/bi/components/FavoriteDetailPage.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| package com.storyteller_f.bi.components | ||
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|
||
| import android.content.Intent | ||
| import androidx.compose.foundation.lazy.LazyColumn | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.ui.platform.LocalContext | ||
| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.ViewModelProvider | ||
| import androidx.lifecycle.viewModelScope | ||
| import androidx.lifecycle.viewmodel.CreationExtras | ||
| import androidx.lifecycle.viewmodel.MutableCreationExtras | ||
| import androidx.lifecycle.viewmodel.compose.viewModel | ||
| import androidx.paging.Pager | ||
| import androidx.paging.PagingConfig | ||
| import androidx.paging.PagingSource | ||
| import androidx.paging.PagingState | ||
| import androidx.paging.cachedIn | ||
| import androidx.paging.compose.collectAsLazyPagingItems | ||
| import androidx.paging.compose.items | ||
| import com.a10miaomiao.bilimiao.comm.entity.ResultInfo | ||
| import com.a10miaomiao.bilimiao.comm.entity.media.MediaDetailInfo | ||
| import com.a10miaomiao.bilimiao.comm.entity.media.MediasInfo | ||
| import com.a10miaomiao.bilimiao.comm.network.BiliApiService | ||
| import com.a10miaomiao.bilimiao.comm.network.MiaoHttp.Companion.gson | ||
| import com.storyteller_f.bi.StateView | ||
| import com.storyteller_f.bi.VideoActivity | ||
|
|
||
| object FavoriteIdKey : CreationExtras.Key<String> | ||
|
|
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| val defaultFactory = object : ViewModelProvider.Factory { | ||
| override fun <T : ViewModel> create(modelClass: Class<T>, extras: CreationExtras): T { | ||
| return FavoriteDetailViewModel(extras.get(FavoriteIdKey)!!) as T | ||
| } | ||
| } | ||
|
|
||
| @Composable | ||
| fun FavoriteDetailPage(id: String) { | ||
| val current = LocalContext.current | ||
| val detailViewModel = viewModel<FavoriteDetailViewModel>(factory = defaultFactory, extras = MutableCreationExtras().apply { | ||
| set(FavoriteIdKey, id) | ||
| }) | ||
| val lazyPagingItems = detailViewModel.flow.collectAsLazyPagingItems() | ||
| StateView(state = lazyPagingItems.loadState.refresh) { | ||
| LazyColumn { | ||
| items(lazyPagingItems) { | ||
| VideoItem(it?.cover.orEmpty(), it?.title.orEmpty(), it?.upper?.name.orEmpty()) { | ||
| current.startActivity(Intent(current, VideoActivity::class.java).apply { | ||
| putExtra("videoId", it?.id) | ||
| }) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| } | ||
|
|
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| class FavoriteDetailViewModel(id: String) : ViewModel() { | ||
| val flow = Pager( | ||
| // Configure how data is loaded by passing additional properties to | ||
| // PagingConfig, such as prefetchDistance. | ||
| PagingConfig(pageSize = 20) | ||
| ) { | ||
| FavoriteDetailSource(id) | ||
| }.flow | ||
| .cachedIn(viewModelScope) | ||
| } | ||
|
|
||
| class FavoriteDetailSource(val id: String) : PagingSource<Int, MediasInfo>() { | ||
| override fun getRefreshKey(state: PagingState<Int, MediasInfo>): Int? { | ||
| return null | ||
| } | ||
|
|
||
| override suspend fun load(params: LoadParams<Int>): LoadResult<Int, MediasInfo> { | ||
| if (id.isEmpty()) { | ||
| return LoadResult.Error(Exception("id is empty")) | ||
| } | ||
| val lastPage = params.key ?: 0 | ||
| val currentPage = lastPage + 1 | ||
| val pageSize = 20 | ||
| val res = BiliApiService.userApi | ||
| .mediaDetail( | ||
| media_id = id, | ||
| pageNum = currentPage, | ||
| pageSize = pageSize, | ||
| ) | ||
| .awaitCall() | ||
| .gson<ResultInfo<MediaDetailInfo>>() | ||
| return if (res.code == 0) { | ||
| val data = res.data | ||
| val medias = data.medias.orEmpty() | ||
| LoadResult.Page( | ||
| medias, | ||
| null, | ||
| if (medias.size < pageSize) null else currentPage + 1 | ||
| ) | ||
| } else { | ||
| LoadResult.Error(Exception(res.message)) | ||
| } | ||
| } | ||
|
|
||
| } |
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