优化

app/src/main/java/io/legado/app/ui/book/group/GroupEditDialog.kt

@@ -26,7 +26,7 @@ class GroupEditDialog() : BaseDialogFragment(R.layout.dialog_book_group_edit) {
     private val viewModel by viewModels<GroupViewModel>()
     private var bookGroup: BookGroup? = null
     val selectImage = registerForActivityResult(SelectImageContract()) {
-        readUri(it?.second) { name, bytes ->
+        readUri(it?.uri) { name, bytes ->
             var file = requireContext().externalFiles
             file = FileUtils.createFileIfNotExist(file, "covers", name)
             file.writeBytes(bytes)

app/src/main/java/io/legado/app/ui/book/info/edit/BookInfoEditActivity.kt

@@ -19,7 +19,7 @@ class BookInfoEditActivity :
     ChangeCoverDialog.CallBack {
 
     private val selectCover = registerForActivityResult(SelectImageContract()) {
-        it?.second?.let { uri ->
+        it.uri?.let { uri ->
             coverChangeTo(uri)
         }
     }

app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt

@@ -48,7 +48,7 @@ class BgTextConfigDialog : BaseDialogFragment(R.layout.dialog_read_bg_text) {
     private var secondaryTextColor = 0
     private val importFormNet = "网络导入"
     private val selectBgImage = registerForActivityResult(SelectImageContract()) {
-        it?.second?.let { uri ->
+        it.uri?.let { uri ->
             setBgFromUri(uri)
         }
     }

app/src/main/java/io/legado/app/ui/config/CoverConfigFragment.kt

@@ -21,12 +21,13 @@ class CoverConfigFragment : BasePreferenceFragment(),
     private val requestCodeCover = 111
     private val requestCodeCoverDark = 112
     private val selectImage = registerForActivityResult(SelectImageContract()) {
-        val uri = it?.second ?: return@registerForActivityResult
+        it.uri?.let { uri ->
-        when (it.first) {
+            when (it.requestCode) {
                 requestCodeCover -> setCoverFromUri(PreferKey.defaultCover, uri)
                 requestCodeCoverDark -> setCoverFromUri(PreferKey.defaultCoverDark, uri)
             }
         }
+    }
 
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         addPreferencesFromResource(R.xml.pref_config_cover)

app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt

@@ -38,8 +38,8 @@ class ThemeConfigFragment : BasePreferenceFragment(),
     private val requestCodeBgLight = 121
     private val requestCodeBgDark = 122
     private val selectImage = registerForActivityResult(SelectImageContract()) {
-        val uri = it?.second ?: return@registerForActivityResult
+        it.uri?.let { uri ->
-        when (it.first) {
+            when (it.requestCode) {
                 requestCodeBgLight -> setBgFromUri(uri, PreferKey.bgImage) {
                     upTheme(false)
                 }
@@ -48,6 +48,7 @@ class ThemeConfigFragment : BasePreferenceFragment(),
                 }
             }
         }
+    }
 
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         addPreferencesFromResource(R.xml.pref_config_theme)

app/src/main/java/io/legado/app/ui/qrcode/QrCodeActivity.kt

@@ -20,7 +20,7 @@ class QrCodeActivity : BaseActivity<ActivityQrcodeCaptureBinding>(), OnScanResul
     override val binding by viewBinding(ActivityQrcodeCaptureBinding::inflate)
 
     private val selectQrImage = registerForActivityResult(SelectImageContract()) {
-        it?.second?.readBytes(this)?.let { bytes ->
+        it?.uri?.readBytes(this)?.let { bytes ->
             val bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.size)
             onScanResultCallback(QRCodeUtils.parseCodeResult(bitmap))
         }

app/src/main/java/io/legado/app/utils/ActivityResultContracts.kt

@@ -7,7 +7,7 @@ import android.net.Uri
 import androidx.activity.result.ActivityResult
 import androidx.activity.result.contract.ActivityResultContract
 
-class SelectImageContract : ActivityResultContract<Int, Pair<Int?, Uri?>?>() {
+class SelectImageContract : ActivityResultContract<Int, SelectImageContract.Result>() {
 
     var requestCode: Int? = null
 
@@ -18,13 +18,18 @@ class SelectImageContract : ActivityResultContract<Int, Pair<Int?, Uri?>?>() {
             .setType("image/*")
     }
 
-    override fun parseResult(resultCode: Int, intent: Intent?): Pair<Int?, Uri?>? {
+    override fun parseResult(resultCode: Int, intent: Intent?): Result {
         if (resultCode == RESULT_OK) {
-            return Pair(requestCode, intent?.data)
+            return Result(requestCode, intent?.data)
         }
-        return null
+        return Result(requestCode, null)
     }
 
+    data class Result(
+        val requestCode: Int?,
+        val uri: Uri? = null
+    )
+
 }
 
 class StartActivityForResult(private val cls: Class<*>) :