Add error message support for reader, Resolve #788

app/src/main/java/com/hippo/ehviewer/gallery/ArchivePageLoader.java

@@ -293,7 +293,7 @@ public class ArchivePageLoader extends PageLoader2 {
 
                 // Check index valid
                 if (index < 0 || index >= size) {
-                    notifyPageFailed(index);
+                    notifyPageFailed(index, null);
                     continue;
                 }
 
@@ -343,7 +343,7 @@ public class ArchivePageLoader extends PageLoader2 {
                 if (image != null) {
                     notifyPageSucceed(index, image);
                 } else {
-                    notifyPageFailed(index);
+                    notifyPageFailed(index, null);
                 }
             }
         }

app/src/main/java/com/hippo/ehviewer/gallery/EhPageLoader.java

@@ -127,8 +127,8 @@ public class EhPageLoader extends PageLoader2 implements SpiderQueen.OnSpiderLis
             Object object = mSpiderQueen.request(index);
             if (object instanceof Float) {
                 notifyPagePercent(index, (Float) object);
-            } else if (object instanceof String) {
-                notifyPageFailed(index);
+            } else if (object instanceof String error) {
+                notifyPageFailed(index, error);
             } else if (object == null) {
                 notifyPageWait(index);
             }
@@ -141,8 +141,8 @@ public class EhPageLoader extends PageLoader2 implements SpiderQueen.OnSpiderLis
             Object object = mSpiderQueen.forceRequest(index);
             if (object instanceof Float) {
                 notifyPagePercent(index, (Float) object);
-            } else if (object instanceof String) {
-                notifyPageFailed(index);
+            } else if (object instanceof String error) {
+                notifyPageFailed(index, error);
             } else if (object == null) {
                 notifyPageWait(index);
             }
@@ -191,7 +191,7 @@ public class EhPageLoader extends PageLoader2 implements SpiderQueen.OnSpiderLis
 
     @Override
     public void onPageFailure(int index, String error, int finished, int downloaded, int total) {
-        notifyPageFailed(index);
+        notifyPageFailed(index, error);
     }
 
     @Override
@@ -205,7 +205,7 @@ public class EhPageLoader extends PageLoader2 implements SpiderQueen.OnSpiderLis
 
     @Override
     public void onGetImageFailure(int index, String error) {
-        notifyPageFailed(index);
+        notifyPageFailed(index, error);
     }
 
     @Override