Fix part error

app/src/leanback/java/com/fongmi/android/tv/ui/activity/DetailActivity.java

@@ -451,7 +451,7 @@ public class DetailActivity extends BaseActivity implements CustomKeyDownVod.Lis
     }
 
     private void getPart(String source) {
-        OKHttp.newCall("http://api.pullword.com/get.php?source=" + URLEncoder.encode(source) + "&param1=0&param2=0&json=1").enqueue(new Callback() {
+        OKHttp.newCall("http://api.pullword.com/get.php?source=" + URLEncoder.encode(source.trim()) + "&param1=0&param2=0&json=1").enqueue(new Callback() {
             @Override
             public void onResponse(@NonNull Call call, @NonNull Response response) throws IOException {
                 List<String> items = Part.get(response.body().string());

app/src/main/java/com/fongmi/android/tv/bean/Part.java

@@ -1,5 +1,7 @@
 package com.fongmi.android.tv.bean;
 
+import android.text.TextUtils;
+
 import com.google.gson.Gson;
 import com.google.gson.annotations.SerializedName;
 import com.google.gson.reflect.TypeToken;
@@ -25,11 +27,12 @@ public class Part {
 
     public static List<String> get(String str) {
         List<String> items = new ArrayList<>();
+        if (TextUtils.isEmpty(str)) return Collections.emptyList();
         for (Part item : arrayFrom(str)) items.add(item.getT());
         return items;
     }
 
     public String getT() {
-        return t;
+        return TextUtils.isEmpty(t) ? "" : t;
     }
 }