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add save function of explanation

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This commit is contained in:
Shuming Liu
2026-09-14 16:27:55 +08:00
parent 9c78bb9b04
commit 3aaa9f4229
9 changed files with 200 additions and 14 deletions
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1
android/sample-app/src/main/java/cn/learningpad/oraltrainer/sample/MainActivity.kt
View File

@@ -434,6 +434,7 @@ class MainActivity : Activity() {
explanationOverlay.show(
sentence,
controller.currentTrainingItem()?.title.orEmpty(),
controller.currentTrainingItem()?.id.orEmpty(),
)
}

70
android/sample-app/src/main/java/cn/learningpad/oraltrainer/sample/SentenceExplanationOverlay.kt
View File

@@ -18,11 +18,12 @@ internal class SentenceExplanationOverlay(
private val activity: Activity,
private val api: SentenceExplanationApi,
) {
private val store = SentenceExplanationStore(activity)
private var currentOverlay: View? = null
private var currentRequest: CancellableExplanationRequest? = null
private var requestGeneration = 0
fun show(sentence: SentenceBoundary, courseTitle: String) {
fun show(sentence: SentenceBoundary, courseTitle: String, mediaId: String) {
close()
val generation = ++requestGeneration
val root = FrameLayout(activity).apply {
@@ -51,6 +52,31 @@ internal class SentenceExplanationOverlay(
setTextColor(SampleTheme.textDark)
textSize = 19f
typeface = Typeface.DEFAULT_BOLD
layoutParams = LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.WRAP_CONTENT, 1f)
}
val saveHint = TextView(activity).apply {
text = HINT_UNSAVED
setTextColor(SampleTheme.textSubtle)
textSize = 12f
setPadding(6.dp, 0, 0, 0)
}
val saveButton = TextView(activity).apply {
text = "保存"
setTextColor(Color.WHITE)
textSize = 13f
typeface = Typeface.DEFAULT_BOLD
gravity = Gravity.CENTER
background = rounded(SampleTheme.button, 8f)
setPadding(12.dp, 6.dp, 12.dp, 6.dp)
isEnabled = false
alpha = 0.45f
}
val titleRow = LinearLayout(activity).apply {
orientation = LinearLayout.HORIZONTAL
gravity = Gravity.CENTER_VERTICAL
addView(title)
addView(saveButton)
addView(saveHint)
}
val subtitle = TextView(activity).apply {
text = sentence.text?.takeIf { it.isNotBlank() } ?: courseTitle
@@ -86,7 +112,7 @@ internal class SentenceExplanationOverlay(
).apply { topMargin = 16.dp }
setOnClickListener { close() }
}
card.addView(title)
card.addView(titleRow)
card.addView(subtitle)
card.addView(scroll)
card.addView(close)
@@ -94,6 +120,22 @@ internal class SentenceExplanationOverlay(
addToWindow(root)
currentOverlay = root
val cached = store.load(mediaId, sentence.index)
if (!cached.isNullOrBlank()) {
message.text = cached
message.setTextColor(SampleTheme.textDark)
markSaved(saveButton, saveHint)
return
}
var loadedExplanation: String? = null
saveButton.setOnClickListener {
val explanation = loadedExplanation ?: return@setOnClickListener
if (store.save(mediaId, sentence.index, explanation)) {
markSaved(saveButton, saveHint)
}
}
currentRequest = api.explain(
sentence.text.orEmpty(),
courseTitle,
@@ -101,14 +143,20 @@ internal class SentenceExplanationOverlay(
sentence.language,
object : SentenceExplanationCallback {
override fun onSuccess(result: SentenceExplanationResult) {
if (generation == requestGeneration) message.text = result.explanation
if (generation != requestGeneration) return
loadedExplanation = result.explanation
message.text = result.explanation
message.setTextColor(SampleTheme.textDark)
saveButton.isEnabled = true
saveButton.alpha = 1f
}
override fun onError(error: Throwable) {
if (generation == requestGeneration) {
if (generation != requestGeneration) return
message.text = "讲解失败：${error.message ?: "请稍后重试"}"
message.setTextColor(SampleTheme.danger)
}
saveButton.isEnabled = false
saveButton.alpha = 0.45f
}
},
)
@@ -128,6 +176,13 @@ internal class SentenceExplanationOverlay(
api.release()
}
private fun markSaved(saveButton: TextView, saveHint: TextView) {
saveButton.text = "已保存"
saveButton.isEnabled = false
saveButton.alpha = 0.7f
saveHint.text = HINT_SAVED
}
private fun addToWindow(view: View) {
(activity.window?.decorView as? ViewGroup)?.addView(view)
}
@@ -147,4 +202,9 @@ internal class SentenceExplanationOverlay(
cornerRadius = radiusDp.dp.toFloat()
strokeColor?.let { setStroke(1.dp, it) }
}
private companion object {
const val HINT_UNSAVED = "（下次直接看本地）"
const val HINT_SAVED = "（已保存本地）"
}
}

39
android/sample-app/src/main/java/cn/learningpad/oraltrainer/sample/SentenceExplanationStore.kt Normal file
View File

@@ -0,0 +1,39 @@
package cn.learningpad.oraltrainer.sample
import android.content.Context
import java.io.File
import java.util.Locale
/** Persists sentence explanations under app filesDir for reuse without another API call. */
internal class SentenceExplanationStore(context: Context) {
private val rootDir = File(context.applicationContext.filesDir, "sentence-explanations")
fun load(mediaId: String, sentenceIndex: Int): String? {
val file = fileFor(mediaId, sentenceIndex) ?: return null
if (!file.isFile || file.length() <= 0L) return null
return file.readText()
}
fun save(mediaId: String, sentenceIndex: Int, explanation: String): Boolean {
val text = explanation.trim()
if (text.isEmpty()) return false
val file = fileFor(mediaId, sentenceIndex) ?: return false
file.parentFile?.mkdirs()
file.writeText(text)
return file.isFile && file.length() > 0L
}
private fun fileFor(mediaId: String, sentenceIndex: Int): File? {
val directoryName = sanitize(mediaId) ?: return null
return File(File(rootDir, directoryName), "$sentenceIndex.txt")
}
companion object {
fun sanitize(mediaId: String): String? {
val filtered = mediaId.trim().lowercase(Locale.US)
.replace(Regex("[^a-z0-9._-]"), "_")
.trim('_')
return filtered.takeIf { it.isNotBlank() && it != "." && it != ".." }
}
}
}

4
ios/OralTrainer.xcodeproj/project.pbxproj
View File

@@ -10,6 +10,7 @@
AA0000000000000000000090 /* AuthAPI.swift in Sources */ = {isa = PBXBuildFile; fileRef = AA0000000000000000000091 /* AuthAPI.swift */; };
AA00000000000000000000A1 /* UserHistory.swift in Sources */ = {isa = PBXBuildFile; fileRef = AA00000000000000000000A2 /* UserHistory.swift */; };
AA00000000000000000000A3 /* TrainingHistoryStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = AA00000000000000000000A4 /* TrainingHistoryStore.swift */; };
AA00000000000000000000B0 /* SentenceExplanationStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = AA00000000000000000000B1 /* SentenceExplanationStore.swift */; };
AA0000000000000000000092 /* AuthView.swift in Sources */ = {isa = PBXBuildFile; fileRef = AA0000000000000000000093 /* AuthView.swift */; };
AA0000000000000000000040 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = AA0000000000000000000020 /* Assets.xcassets */; };
AA0000000000000000000042 /* OralTrainerApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = AA0000000000000000000022 /* OralTrainerApp.swift */; };
@@ -41,6 +42,7 @@
AA0000000000000000000091 /* AuthAPI.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AuthAPI.swift; sourceTree = "<group>"; };
AA00000000000000000000A2 /* UserHistory.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserHistory.swift; sourceTree = "<group>"; };
AA00000000000000000000A4 /* TrainingHistoryStore.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrainingHistoryStore.swift; sourceTree = "<group>"; };
AA00000000000000000000B1 /* SentenceExplanationStore.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SentenceExplanationStore.swift; sourceTree = "<group>"; };
AA0000000000000000000093 /* AuthView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AuthView.swift; sourceTree = "<group>"; };
AA000000000000000000000A /* OralTrainer.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = OralTrainer.app; sourceTree = BUILT_PRODUCTS_DIR; };
AA000000000000000000001F /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
@@ -131,6 +133,7 @@
AA000000000000000000002A /* SentenceBoundaryAPI.swift */,
AA000000000000000000002B /* ImitationAssessor.swift */,
AA00000000000000000000A4 /* TrainingHistoryStore.swift */,
AA00000000000000000000B1 /* SentenceExplanationStore.swift */,
AA00000000000000000000A2 /* UserHistory.swift */,
AA000000000000000000007E /* DubbingCompositor.swift */,
AA0000000000000000000081 /* AudioRecorderSession.swift */,
@@ -267,6 +270,7 @@
AA0000000000000000000090 /* AuthAPI.swift in Sources */,
AA00000000000000000000A1 /* UserHistory.swift in Sources */,
AA00000000000000000000A3 /* TrainingHistoryStore.swift in Sources */,
AA00000000000000000000B0 /* SentenceExplanationStore.swift in Sources */,
AA0000000000000000000092 /* AuthView.swift in Sources */,
AA0000000000000000000053 /* TestView.swift in Sources */,
AA0000000000000000000054 /* FullscreenPlayerView.swift in Sources */,

5
ios/OralTrainer.xcodeproj/project.xcworkspace/xcuserdata/liushuming.xcuserdatad/IDEFindNavigatorScopes.plist Normal file
View File

@@ -0,0 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<array/>
</plist>

BIN
ios/OralTrainer.xcodeproj/project.xcworkspace/xcuserdata/liushuming.xcuserdatad/UserInterfaceState.xcuserstate generated
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Binary file not shown.

47
ios/OralTrainer/Services/SentenceExplanationStore.swift Normal file
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@@ -0,0 +1,47 @@
import Foundation
final class SentenceExplanationStore {
static let shared = SentenceExplanationStore()
private let root: URL
init() {
let documents = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
root = documents.appendingPathComponent("SentenceExplanations", isDirectory: true)
try? FileManager.default.createDirectory(at: root, withIntermediateDirectories: true)
}
func load(mediaId: String, sentenceIndex: Int) -> String? {
let url = fileURL(mediaId: mediaId, sentenceIndex: sentenceIndex)
guard FileManager.default.fileExists(atPath: url.path) else { return nil }
let text = try? String(contentsOf: url, encoding: .utf8)
let trimmed = text?.trimmingCharacters(in: .whitespacesAndNewlines) ?? ""
return trimmed.isEmpty ? nil : trimmed
}
@discardableResult
func save(mediaId: String, sentenceIndex: Int, explanation: String) -> Bool {
let trimmed = explanation.trimmingCharacters(in: .whitespacesAndNewlines)
guard !trimmed.isEmpty else { return false }
let url = fileURL(mediaId: mediaId, sentenceIndex: sentenceIndex)
try? FileManager.default.createDirectory(at: url.deletingLastPathComponent(), withIntermediateDirectories: true)
do {
try trimmed.write(to: url, atomically: true, encoding: .utf8)
return true
} catch {
return false
}
}
private func fileURL(mediaId: String, sentenceIndex: Int) -> URL {
let directory = root.appendingPathComponent(Self.sanitize(mediaId), isDirectory: true)
return directory.appendingPathComponent("\(sentenceIndex).txt")
}
static func sanitize(_ mediaId: String) -> String {
let allowed = CharacterSet.alphanumerics.union(CharacterSet(charactersIn: "._-"))
let filtered = mediaId.lowercased().unicodeScalars.map { allowed.contains($0) ? Character($0) : "_" }
let value = String(filtered).trimmingCharacters(in: CharacterSet(charactersIn: "_"))
return value.isEmpty || value == "." || value == ".." ? "unknown" : value
}
}

1
ios/OralTrainer/Views/FullscreenPlayerView.swift
View File

@@ -97,6 +97,7 @@ struct FullscreenPlayerView: View {
}
.sheet(item: $explanationSentence) { sentence in
SentenceExplanationSheet(
mediaId: controller.currentItem?.id ?? "",
courseTitle: controller.currentItem?.title ?? "口语训练课程",
sentence: sentence
)

31
ios/OralTrainer/Views/PlayerSectionView.swift
View File

@@ -22,6 +22,7 @@ struct PlayerSectionView: View {
.padding(.horizontal, 16)
.sheet(item: $explanationSentence) { sentence in
SentenceExplanationSheet(
mediaId: controller.currentItem?.id ?? "",
courseTitle: controller.currentItem?.title ?? "口语训练课程",
sentence: sentence
)
@@ -96,7 +97,7 @@ struct PlayerSectionView: View {
Text(sentenceTextText)
.font(.system(size: 15))
.foregroundColor(.white)
.lineLimit(2)
.lineLimit(4)
Spacer()
Button {
guard let sentence = controller.currentSentence, !(sentence.text ?? "").isEmpty else {
@@ -230,12 +231,14 @@ struct PlayerSectionView: View {
}
struct SentenceExplanationSheet: View {
let mediaId: String
let courseTitle: String
let sentence: SentenceBoundary
@Environment(\.dismiss) private var dismiss
@State private var explanation = ""
@State private var errorMessage: String?
@State private var saved = false
var body: some View {
NavigationView {
@@ -267,6 +270,14 @@ struct SentenceExplanationSheet: View {
.navigationBarTitleDisplayMode(.inline)
.toolbar {
ToolbarItem(placement: .navigationBarTrailing) {
HStack(spacing: 6) {
Button(saved ? "已保存" : "保存") {
saveExplanation()
}
.disabled(saved || explanation.isEmpty || errorMessage != nil)
Text(saved ? "（已保存本地）" : "（下次直接看本地）")
.font(.system(size: 12))
.foregroundColor(Theme.textMuted)
Button {
dismiss()
} label: {
@@ -278,7 +289,16 @@ struct SentenceExplanationSheet: View {
}
}
}
}
.task {
if let cached = SentenceExplanationStore.shared.load(
mediaId: mediaId,
sentenceIndex: sentence.index
) {
explanation = cached
saved = true
return
}
guard explanation.isEmpty, errorMessage == nil else { return }
do {
explanation = try await SentenceBoundaryAPI.explain(
@@ -290,4 +310,13 @@ struct SentenceExplanationSheet: View {
}
}
}
private func saveExplanation() {
guard !saved, !explanation.isEmpty, errorMessage == nil else { return }
saved = SentenceExplanationStore.shared.save(
mediaId: mediaId,
sentenceIndex: sentence.index,
explanation: explanation
)
}
}