up

app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt

@@ -49,9 +49,7 @@ class RssSourceEditActivity :
         viewModel.sourceLiveData.observe(this, Observer {
             upRecyclerView(it)
         })
-        intent.getStringExtra("data")?.let {
-            viewModel.setSource(it)
-        }
+        viewModel.initData(intent)
     }
 
     override fun onDestroy() {
@@ -98,7 +96,6 @@ class RssSourceEditActivity :
         window.decorView.viewTreeObserver.addOnGlobalLayoutListener(KeyboardOnGlobalChangeListener())
         recycler_view.layoutManager = LinearLayoutManager(this)
         recycler_view.adapter = adapter
-        upRecyclerView(null)
     }
 
     private fun upRecyclerView(rssSource: RssSource?) {

app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditViewModel.kt

@@ -3,6 +3,7 @@ package io.legado.app.ui.rss.source.edit
 import android.app.Application
 import android.content.ClipboardManager
 import android.content.Context
+import android.content.Intent
 import androidx.lifecycle.MutableLiveData
 import io.legado.app.App
 import io.legado.app.base.BaseViewModel
@@ -13,26 +14,35 @@ import io.legado.app.utils.fromJsonObject
 class RssSourceEditViewModel(application: Application) : BaseViewModel(application) {
 
     val sourceLiveData: MutableLiveData<RssSource> = MutableLiveData()
+    var oldSourceUrl: String? = null
 
-    fun setSource(key: String) {
+    fun initData(intent: Intent) {
         execute {
-            App.db.rssSourceDao().getByKey(key)?.let {
+            val key = intent.getStringExtra("data")
+            var source: RssSource? = null
+            if (key != null) {
+                source = App.db.rssSourceDao().getByKey(key)
+            }
+            source?.let {
+                oldSourceUrl = it.sourceUrl
                 sourceLiveData.postValue(it)
+            } ?: let {
+                sourceLiveData.postValue(RssSource().apply {
+                    customOrder = App.db.rssSourceDao().maxOrder + 1
+                })
             }
         }
     }
 
     fun save(rssSource: RssSource, success: (() -> Unit)) {
         execute {
-            sourceLiveData.value?.let {
-                if (it.sourceUrl != rssSource.sourceUrl) {
+            oldSourceUrl?.let {
+                if (oldSourceUrl != rssSource.sourceUrl) {
                     App.db.rssSourceDao().delete(it)
                 }
-            } ?: let {
-                rssSource.customOrder = App.db.rssSourceDao().maxOrder + 1
             }
+            oldSourceUrl = rssSource.sourceUrl
             App.db.rssSourceDao().insert(rssSource)
-            sourceLiveData.postValue(rssSource)
         }.onSuccess {
             success()
         }.onError {