优化

app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt

@@ -61,8 +61,7 @@ class AudioPlayActivity :
         }
     }
     private val sourceEditResult =
-        registerForActivityResult(StartActivityForResult(BookSourceEditActivity::class.java)) {
-            it ?: return@registerForActivityResult
+        registerForActivityResult(StartActivityContract(BookSourceEditActivity::class.java)) {
             if (it.resultCode == RESULT_OK) {
                 viewModel.upSource()
             }

app/src/main/java/io/legado/app/ui/book/changesource/ChangeSourceDialog.kt

@@ -48,7 +48,7 @@ class ChangeSourceDialog() : BaseDialogFragment(R.layout.dialog_change_source),
     private val viewModel: ChangeSourceViewModel by viewModels()
     private val adapter by lazy { ChangeSourceAdapter(requireContext(), viewModel, this) }
     private val editSourceResult =
-        registerForActivityResult(StartActivityForResult(BookSourceEditActivity::class.java)) {
+        registerForActivityResult(StartActivityContract(BookSourceEditActivity::class.java)) {
             viewModel.startSearch()
         }
 

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

@@ -85,7 +85,7 @@ class BookInfoActivity :
         }
     }
     private val infoEditResult = registerForActivityResult(
-        StartActivityForResult(BookInfoEditActivity::class.java)
+        StartActivityContract(BookInfoEditActivity::class.java)
     ) {
         if (it.resultCode == RESULT_OK) {
             viewModel.upEditBook()

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

@@ -79,8 +79,7 @@ class ReadBookActivity : BaseReadBookActivity(),
             }
         }
     private val sourceEditActivity =
-        registerForActivityResult(StartActivityForResult(BookSourceEditActivity::class.java)) {
-            it ?: return@registerForActivityResult
+        registerForActivityResult(StartActivityContract(BookSourceEditActivity::class.java)) {
             if (it.resultCode == RESULT_OK) {
                 viewModel.upBookSource {
                     upMenuView()

app/src/main/java/io/legado/app/ui/rss/article/RssSortActivity.kt

@@ -16,7 +16,7 @@ import io.legado.app.databinding.DialogEditTextBinding
 import io.legado.app.lib.dialogs.alert
 import io.legado.app.ui.login.SourceLoginActivity
 import io.legado.app.ui.rss.source.edit.RssSourceEditActivity
-import io.legado.app.utils.StartActivityForResult
+import io.legado.app.utils.StartActivityContract
 import io.legado.app.utils.gone
 import io.legado.app.utils.startActivity
 import io.legado.app.utils.viewbindingdelegate.viewBinding
@@ -33,7 +33,7 @@ class RssSortActivity : VMBaseActivity<ActivityRssArtivlesBinding, RssSortViewMo
     private val sortList = mutableListOf<Pair<String, String>>()
     private val fragmentMap = hashMapOf<String, Fragment>()
     private val editSourceResult = registerForActivityResult(
-        StartActivityForResult(RssSourceEditActivity::class.java)
+        StartActivityContract(RssSourceEditActivity::class.java)
     ) {
         if (it.resultCode == RESULT_OK) {
             viewModel.initData(intent) {

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

@@ -32,7 +32,7 @@ class SelectImageContract : ActivityResultContract<Int, SelectImageContract.Resu
 
 }
 
-class StartActivityForResult(private val cls: Class<*>) :
+class StartActivityContract(private val cls: Class<*>) :
     ActivityResultContract<Intent.() -> Unit, ActivityResult>() {
 
     override fun createIntent(context: Context, input: Intent.() -> Unit): Intent {
@@ -47,4 +47,4 @@ class StartActivityForResult(private val cls: Class<*>) :
         return ActivityResult(resultCode, intent)
     }
 
-}
+}