Fix some bug

app/src/leanback/res/layout/activity_search.xml

@@ -19,7 +19,7 @@
             android:hint="@string/search_hint"
             android:imeOptions="actionDone"
             android:inputType="textCapCharacters|textAutoCorrect|textAutoComplete"
-            android:letterSpacing="0.05"
+            android:letterSpacing="0.02"
             android:maxLength="50"
             android:paddingStart="24dp"
             android:paddingTop="24dp"

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

@@ -109,7 +109,7 @@ public class History {
     }
 
     public String getVodId() {
-        return getKey().substring(getKey().lastIndexOf("@@@") + 1);
+        return getKey().substring(getKey().lastIndexOf("@@@") + 3);
     }
 
     public Vod.Flag getFlag() {

app/src/main/res/layout/view_empty.xml

@@ -7,8 +7,8 @@
 
     <ImageView
         android:id="@+id/icon"
-        android:layout_width="150dp"
-        android:layout_height="150dp"
+        android:layout_width="120dp"
+        android:layout_height="120dp"
         android:scaleType="fitCenter"
         android:src="@drawable/ic_empty" />
 
@@ -17,8 +17,10 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginTop="16dp"
+        android:letterSpacing="0.02"
         android:text="@string/error_empty"
         android:textColor="@color/white"
-        android:textSize="20sp" />
+        android:textSize="20sp"
+        android:textStyle="bold" />
 
 </LinearLayout>