diff --git a/app/src/main/java/io/legado/app/help/ThemeConfig.kt b/app/src/main/java/io/legado/app/help/ThemeConfig.kt
index 2b19e0136..f0434680b 100644
--- a/app/src/main/java/io/legado/app/help/ThemeConfig.kt
+++ b/app/src/main/java/io/legado/app/help/ThemeConfig.kt
@@ -41,10 +41,12 @@ object ThemeConfig {
         }
     }
 
-    fun addConfig(json: String) {
-        GSON.fromJsonObject<Config>(json)?.let {
+    fun addConfig(json: String): Boolean {
+        GSON.fromJsonObject<Config>(json.trim { it < ' ' })?.let {
             addConfig(it)
+            return true
         }
+        return false
     }
 
     private fun addConfig(newConfig: Config) {
diff --git a/app/src/main/java/io/legado/app/ui/config/ThemeListDialog.kt b/app/src/main/java/io/legado/app/ui/config/ThemeListDialog.kt
index a1b93262d..b090332e4 100644
--- a/app/src/main/java/io/legado/app/ui/config/ThemeListDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/config/ThemeListDialog.kt
@@ -21,6 +21,7 @@ import io.legado.app.ui.widget.recycler.VerticalDivider
 import io.legado.app.utils.GSON
 import io.legado.app.utils.applyTint
 import io.legado.app.utils.getClipText
+import io.legado.app.utils.toast
 import kotlinx.android.synthetic.main.dialog_recycler_view.*
 import kotlinx.android.synthetic.main.item_theme_config.view.*
 import org.jetbrains.anko.sdk27.listeners.onClick
@@ -74,8 +75,11 @@ class ThemeListDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
         when (item?.itemId) {
             R.id.menu_import -> {
                 requireContext().getClipText()?.let {
-                    ThemeConfig.addConfig(it)
-                    initData()
+                    if (ThemeConfig.addConfig(it)) {
+                        initData()
+                    } else {
+                        toast("格式不对,添加失败")
+                    }
                 }
             }
         }