资源简介

仿抖音流的图片浏览app,可以不断下滑加载高兴图。预加载屏幕下方的图片。点击可看大图,可保存到本地。

@BindContentView(R.layout.fragment_recycler)
class UnsplashPhotosFragment : BaseFragment(), UnsplashPhotosItemFactory.UnsplashPhotosItemEventListener, OnLoadMoreListener, androidx.swiperefreshlayout.widget.SwipeRefreshLayout.OnRefreshListener {
private var adapter: AssemblyRecyclerAdapter? = null
private var pageIndex = 1
private var backgroundImageUri: String? = null
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
recycler_recyclerFragment_content.layoutManager = androidx.recyclerview.widget.LinearLayoutManager(context)
refresh_recyclerFragment.setOnRefreshListener(this)
if (adapter != null) {
recycler_recyclerFragment_content.adapter = adapter
} else {
refresh_recyclerFragment.post { onRefresh() }
}
}
override fun onUserVisibleChanged(isVisibleToUser: Boolean) {
if (isVisibleToUser) {
changeBackground(backgroundImageUri)
}
}
private fun changeBackground(imageUri: String?) {
this.backgroundImageUri = imageUri
backgroundImageUri?.let { EventBus.getDefault().post(ChangeMainPageBgEvent(it)) }
}
private fun loadData(pageIndex: Int) {
this.pageIndex = pageIndex
NetServices.unsplash().listPhotos(pageIndex).enqueue(LoadDataCallback(this, pageIndex))
}
override fun onClickImage(position: Int, image: UnsplashImage, optionsKey: String) {
val activity = activity ?: return
var finalOptionsKey: String? = optionsKey
// 含有这些信息时,说明这张图片不仅仅是缩小,而是会被改变,因此不能用作loading图了
if (finalOptionsKey!!.contains("Resize")
|| finalOptionsKey.contains("ImageProcessor")
|| finalOptionsKey.contains("thumbnailMode")) {
finalOptionsKey = null
}
@Suppress("UNCHECKED_CAST")
val images = adapter!!.dataList as List<UnsplashImage>
val imageArrayList = ArrayList<Image>(images.size)
images.mapTo(imageArrayList) { Image(it.urls!!.regular!!, it.urls!!.raw!!) }
ImageDetailActivity.launch(activity, dataTransferHelper.put("urlList", imageArrayList), finalOptionsKey!!, position)
}
override fun onClickUser(position: Int, user: UnsplashImage.User) {
val uri = Uri.parse(user.links!!.html)
.buildUpon()
.appendQueryParameter("utm_source", "SketchSample")
.appendQueryParameter("utm_medium", "referral")
.appendQueryParameter("utm_campaign", "api-credit")
.build()
val intent = Intent(Intent.ACTION_VIEW)
intent.data = uri
startActivity(intent)
}
override fun onRefresh() {
if (adapter != null) {
adapter!!.loadMoreFinished(false)
}
if (!refresh_recyclerFragment.isRefreshing) {
refresh_recyclerFragment.isRefreshing = true
}
loadData(1)
}
override fun onLoadMore(adapter1: AssemblyAdapter) {
loadData(pageIndex 1)
}
private class LoadDataCallback internal constructor(fragment: UnsplashPhotosFragment, private val pageIndex: Int) : Callback<List<UnsplashImage>> {
private val reference: WeakReference<UnsplashPhotosFragment> = WeakReference(fragment)
init {
if (pageIndex == 1) {
fragment.hint_recyclerFragment.hidden()
}
}
override fun onResponse(call: Call<List<UnsplashImage>>, response: Response<List<UnsplashImage>>) {
val fragment = reference.get() ?: return
if (!fragment.isViewCreated) {
return
}
if (pageIndex == 1) {
create(fragment, response)
} else {
loadMore(fragment, response)
}
fragment.refresh_recyclerFragment.isRefreshing = false
}
override fun onFailure(call: Call<List<UnsplashImage>>, t: Throwable) {
val fragment = reference.get() ?: return
val activity = fragment.activity ?: return
if (!fragment.isViewCreated) {
return
}
if (pageIndex == 1) {
fragment.hint_recyclerFragment.failed(t, View.OnClickListener { fragment.onRefresh() })
fragment.refresh_recyclerFragment.isRefreshing = false
} else {
fragment.adapter!!.loadMoreFailed()
Toast.makeText(fragment.activity, HintView.getCauseByException(activity, t), Toast.LENGTH_LONG).show()
}
}
private fun create(fragment: UnsplashPhotosFragment, response: Response<List<UnsplashImage>>) {
val activity = fragment.activity ?: return
val images = response.body()
if (images == null || images.isEmpty()) {
fragment.hint_recyclerFragment.empty(

资源截图

代码片段和文件信息

package me.panpf.sketch.sample.net;

import me.panpf.sketch.sample.bean.BaiduImageSearchResult;
import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.Query;

public interface BaiduImageService {

    @GET(“search/acjson?tn=resultjson_com&ipn=rj&ct=201326592&is=&fp=result&cl=2&lm=-1&ie=utf-8&oe=utf-8&adpicid=&st=-1&z=&ic=0&s=&se=&tab=&width=&height=&face=0&istype=2&qc=&nc=1&fr=&gsm=3c&1437824884073=“)
    Call searchPhoto(
            @Query(“word“) String word
            @Query(“queryWord“) String queryWord
            @Query(“pn“) int pageStart
            @Query(“rn“) int pageSize);
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-01-17 05:43  sketch-master\
     文件         334  2019-01-17 05:43  sketch-master\.gitignore
     文件       67561  2019-01-17 05:43  sketch-master\CHANGELOG.md
     文件       37713  2019-01-17 05:43  sketch-master\CHANGELOG_P_B.md
     文件       13327  2019-01-17 05:43  sketch-master\LICENSE.txt
     文件       10483  2019-01-17 05:43  sketch-master\README.md
     文件       11127  2019-01-17 05:43  sketch-master\README_EN.md
     文件         903  2019-01-17 05:43  sketch-master\build.gradle
     文件         276  2019-01-17 05:43  sketch-master\build_kotlin.gradle
     目录           0  2019-01-17 05:43  sketch-master\docs\
     目录           0  2019-01-17 05:43  sketch-master\docs\res\
     文件      493524  2019-01-17 05:43  sketch-master\docs\res\apps.png
     文件      135400  2019-01-17 05:43  sketch-master\docs\res\gif_flag.png
     文件        4623  2019-01-17 05:43  sketch-master\docs\res\logo.png
     文件       48594  2019-01-17 05:43  sketch-master\docs\res\logo_source.jpg
     文件       48793  2019-01-17 05:43  sketch-master\docs\res\sample_debug_mode.jpeg
     文件     1896495  2019-01-17 05:43  sketch-master\docs\sketch-sample.apk
     文件        2334  2019-01-17 05:43  sketch-master\docs\sketch-sample.png
     目录           0  2019-01-17 05:43  sketch-master\docs\wiki\
     文件        4164  2019-01-17 05:43  sketch-master\docs\wiki\bitmap_pool.md
     文件        5260  2019-01-17 05:43  sketch-master\docs\wiki\block_display.md
     文件        1581  2019-01-17 05:43  sketch-master\docs\wiki\cache_processed_image_in_disk.md
     文件        1747  2019-01-17 05:43  sketch-master\docs\wiki\cancel_request.md
     文件        2426  2019-01-17 05:43  sketch-master\docs\wiki\correct_image_orientation.md
     文件        2207  2019-01-17 05:43  sketch-master\docs\wiki\disk_cache.md
     文件        1669  2019-01-17 05:43  sketch-master\docs\wiki\display_apk_or_app_icon.md
     文件        2293  2019-01-17 05:43  sketch-master\docs\wiki\display_video_thumbnail.md
     文件        1296  2019-01-17 05:43  sketch-master\docs\wiki\error_tracker.md
     文件        1130  2019-01-17 05:43  sketch-master\docs\wiki\http_stack.md
     文件        3585  2019-01-17 05:43  sketch-master\docs\wiki\image_displayer.md
     文件        3700  2019-01-17 05:43  sketch-master\docs\wiki\image_processor.md
............此处省略624个文件信息

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