feat: 优化代码

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

@@ -8,13 +8,14 @@ import io.legado.app.ui.main.MainActivity
 import io.legado.app.utils.getViewModel
 
 
-class FileAssociation : VMBaseActivity<FileAssociationViewModel>(R.layout.activity_file_association) {
+class FileAssociation :
+    VMBaseActivity<FileAssociationViewModel>(R.layout.activity_file_association) {
     override val viewModel: FileAssociationViewModel
         get() = getViewModel(FileAssociationViewModel::class.java)
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
-        if (null != intent.data){
+        intent.data?.let { data ->
-            val newIntent = viewModel.dispatchIndent(intent.data!!)
+            val newIntent = viewModel.dispatchIndent(data)
             if (newIntent != null) {
                 this.startActivityForResult(newIntent, 100)
             } else {
@@ -22,6 +23,7 @@ class FileAssociation : VMBaseActivity<FileAssociationViewModel>(R.layout.activi
             }
         }
     }
+
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         super.onActivityResult(requestCode, resultCode, data)
 

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

@@ -8,7 +8,6 @@ import io.legado.app.base.BaseViewModel
 import io.legado.app.model.localBook.LocalBook
 import io.legado.app.utils.isJsonArray
 import io.legado.app.utils.isJsonObject
-import org.jetbrains.anko.toast
 import java.io.File
 
 class FileAssociationViewModel(application: Application) : BaseViewModel(application) {
@@ -22,14 +21,18 @@ class FileAssociationViewModel(application: Application) : BaseViewModel(applica
                     val content = file.readText()
                     if (content.isJsonObject() || content.isJsonArray()){
                         //暂时根据文件内容判断属于什么
-                        if (content.contains("bookSourceUrl")){
+                        when {
+                            content.contains("bookSourceUrl") -> {
                                 scheme = "booksource"
-                        }else if (content.contains("sourceUrl")){
+                            }
+                            content.contains("sourceUrl") -> {
                                 scheme = "rsssource"
-                        }else if (content.contains("pattern")){
+                            }
+                            content.contains("pattern") -> {
                                 scheme = "replace"
                             }
                         }
+                    }
                     if (TextUtils.isEmpty(scheme)){
                         execute{
                             LocalBook.importFile(uri.path.toString())
@@ -54,7 +57,7 @@ class FileAssociationViewModel(application: Application) : BaseViewModel(applica
             }
             val data = Uri.parse(url)
             val newIndent = Intent(Intent.ACTION_VIEW)
-            newIndent.data = data;
+        newIndent.data = data
             return  newIndent
     }
 }