Merge upstream pull request DImuthuUpe#824

Fix previous merge

Author: polesapart

android-pdf-viewer/src/main/java/com/github/barteksc/pdfviewer/PDFView.java

@@ -258,8 +258,6 @@ ScrollHandle getScrollHandle() {
     public PDFView(Context context, AttributeSet set) {
         super(context, set);
 
-        renderingHandlerThread = new HandlerThread("PDF renderer");
-
         if (isInEditMode()) {
             return;
         }
@@ -476,6 +474,12 @@ public void computeScroll() {
         animationManager.computeFling();
     }
 
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        renderingHandlerThread = new HandlerThread("PDF renderer");
+    }
+
     @Override
     protected void onDetachedFromWindow() {
         recycle();

sample/src/main/AndroidManifest.xml

@@ -8,7 +8,7 @@
 		android:label="@string/app_name"
 		android:theme="@style/Theme.AppCompat.Light">
 		<activity
-			android:name="PDFViewActivity"
+			android:name="PDFViewActivity_"
 			android:label="@string/app_name" >
 			<intent-filter>
 				<action android:name="android.intent.action.MAIN" />