优化

app/src/main/java/io/legado/app/ui/sourceedit/SourceEditActivity.kt

@@ -1,9 +1,11 @@
 package io.legado.app.ui.sourceedit
 
 import android.os.Bundle
+import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
 import io.legado.app.R
 import io.legado.app.base.BaseActivity
+import io.legado.app.data.entities.BookSource
 import io.legado.app.utils.getViewModel
 import kotlinx.android.synthetic.main.activity_source_edit.*
 
@@ -13,16 +15,39 @@ class SourceEditActivity : BaseActivity<SourceEditViewModel>() {
     override val layoutID: Int
         get() = R.layout.activity_source_edit
 
-    val adapter = SourceEditAdapter()
+    private val adapter = SourceEditAdapter()
+    private val sourceEditEntities:ArrayList<SourceEditEntity> = ArrayList()
 
     override fun onViewModelCreated(viewModel: SourceEditViewModel, savedInstanceState: Bundle?) {
-        val sourceID = intent.getStringExtra("data")
-        sourceID?.let { viewModel.setBookSource(sourceID)}
         initRecyclerView()
+        viewModel.sourceLiveData.observe(this, Observer {
+            upRecyclerView(it)
+        })
+        if (viewModel.sourceLiveData.value == null) {
+            val sourceID = intent.getStringExtra("data")
+            if (sourceID == null) {
+                upRecyclerView(null)
+            } else {
+                sourceID.let { viewModel.setBookSource(sourceID) }
+            }
+        } else {
+            upRecyclerView(viewModel.sourceLiveData.value)
+        }
     }
 
     private fun initRecyclerView() {
         recycler_view.layoutManager = LinearLayoutManager(this)
         recycler_view.adapter = adapter
     }
+
+    private fun upRecyclerView(bookSource: BookSource?) {
+        sourceEditEntities.clear()
+        sourceEditEntities.add(SourceEditEntity("origin", bookSource?.origin, R.string.book_source_url))
+        sourceEditEntities.add(SourceEditEntity("name", bookSource?.name, R.string.book_source_name))
+        sourceEditEntities.add(SourceEditEntity("group", bookSource?.group, R.string.book_source_group))
+        adapter.sourceEditEntities = sourceEditEntities
+        adapter.notifyDataSetChanged()
+    }
+
+    class SourceEditEntity(var key: String, var value:String?, var hint:Int)
 }

app/src/main/java/io/legado/app/ui/sourceedit/SourceEditAdapter.kt

@@ -11,7 +11,7 @@ import kotlinx.android.synthetic.main.item_source_edit.view.*
 
 class SourceEditAdapter : RecyclerView.Adapter<SourceEditAdapter.MyViewHolder>() {
 
-    var sourceEditEntities:ArrayList<SourceEditEntity> = ArrayList()
+    var sourceEditEntities:ArrayList<SourceEditActivity.SourceEditEntity> = ArrayList()
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
         return MyViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.item_source_edit, parent, false))
@@ -26,7 +26,7 @@ class SourceEditAdapter : RecyclerView.Adapter<SourceEditAdapter.MyViewHolder>()
     }
 
     class MyViewHolder(view: View) : RecyclerView.ViewHolder(view) {
-        fun bind(sourceEditEntity: SourceEditEntity) = with(itemView) {
+        fun bind(sourceEditEntity: SourceEditActivity.SourceEditEntity) = with(itemView) {
             if (editText.getTag(R.id.tag1) == null) {
                 val listener = object : View.OnAttachStateChangeListener {
                     override fun onViewAttachedToWindow(v: View) {
@@ -49,7 +49,7 @@ class SourceEditAdapter : RecyclerView.Adapter<SourceEditAdapter.MyViewHolder>()
                 }
             }
             editText.setText(sourceEditEntity.value)
-            sourceEditEntity.hint?.let { textInputLayout.hint = context.getString(it) }
+            textInputLayout.hint = context.getString(sourceEditEntity.hint)
             val textWatcher = object : TextWatcher {
                 override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
 
@@ -68,9 +68,5 @@ class SourceEditAdapter : RecyclerView.Adapter<SourceEditAdapter.MyViewHolder>()
         }
     }
 
-    class SourceEditEntity {
-        var key:String?=null
-        var value:String?=null
-        var hint:Int?=null
-    }
+
 }

app/src/main/java/io/legado/app/ui/sourceedit/SourceEditViewModel.kt

@@ -9,10 +9,12 @@ import io.legado.app.data.entities.BookSource
 
 class SourceEditViewModel(application: Application) : AndroidViewModel(application) {
 
-    private val sourceLiveData:MutableLiveData<BookSource> = MutableLiveData()
+    val sourceLiveData:MutableLiveData<BookSource> = MutableLiveData()
 
     fun setBookSource(key: String) {
         sourceLiveData.value = App.db.bookSourceDao().findByKey(key)
     }
 
+
+
 }