From c5e1254d5957b46c1afb14f933db10e4023fa500 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Tue, 15 Oct 2013 15:59:13 +0400
Subject: load thumbnails in comicslist asynchronously

---
 src/org/fox/ttcomics/ComicListFragment.java | 58 ++++++++++++++++++++---------
 src/org/fox/ttcomics/MainActivity.java      |  6 ++-
 2 files changed, 45 insertions(+), 19 deletions(-)

(limited to 'src')

diff --git a/src/org/fox/ttcomics/ComicListFragment.java b/src/org/fox/ttcomics/ComicListFragment.java
index edd13ff..349084a 100644
--- a/src/org/fox/ttcomics/ComicListFragment.java
+++ b/src/org/fox/ttcomics/ComicListFragment.java
@@ -61,12 +61,10 @@ public class ComicListFragment extends Fragment implements OnItemClickListener {
 		m_baseDirectory = baseDirectory;		
 	}
 	
-	public ComicListFragment(int mode) {
-		super();
-		
+	public void setMode(int mode) {
 		m_mode = mode;
 	}
-
+	
 	private class ComicsListAdapter extends SimpleCursorAdapter {
 		public ComicsListAdapter(Context context, int layout, Cursor c,
 				String[] from, int[] to, int flags) {
@@ -135,30 +133,56 @@ public class ComicListFragment extends Fragment implements OnItemClickListener {
 			ImageView thumbnail = (ImageView) v.findViewById(R.id.thumbnail);
 			
 			if (thumbnail != null) {
+				thumbnail.setImageResource(R.drawable.ic_launcher);
+				
 				if (m_activity.isStorageAvailable() && thumbnailFile.exists()) {
-					//
-					
+					thumbnail.setTag(thumbnailFile.getAbsolutePath());
+
+					CoverImageLoader imageLoader = new CoverImageLoader();
+					imageLoader.execute(thumbnail);
+				}
+			}
+
+			return v;
+		}
+	}
+
+	class CoverImageLoader extends AsyncTask<ImageView, Void, Bitmap> {
+		private ImageView m_thumbnail;
+		
+		@Override
+		protected Bitmap doInBackground(ImageView... params) {
+			m_thumbnail = params[0];
+			
+			if (m_thumbnail != null) {
+				File thumbnailFile = new File(m_thumbnail.getTag().toString());
+				
+				if (thumbnailFile.exists() && thumbnailFile.canRead()) {
+				
 				    final BitmapFactory.Options options = new BitmapFactory.Options();
 				    options.inJustDecodeBounds = true;
 				    BitmapFactory.decodeFile(thumbnailFile.getAbsolutePath(), options);
-
+		
 				    options.inSampleSize = CommonActivity.calculateInSampleSize(options, 128, 128);
 				    options.inJustDecodeBounds = false;
 				    
 				    Bitmap bmp = BitmapFactory.decodeFile(thumbnailFile.getAbsolutePath(), options);
-				    
-					if (bmp != null) {
-						thumbnail.setImageBitmap(bmp);
-					}
-				} else {
-					thumbnail.setImageResource(R.drawable.ic_launcher);
+				
+				    return bmp;
 				}
 			}
-
-			return v;
+			
+			return null;
 		}
-	}
-
+		
+		@Override
+        protected void onPostExecute(Bitmap bmp) {
+			if (isAdded() && bmp != null) {
+				m_thumbnail.setImageBitmap(bmp);
+			}
+		}
+		
+	};
 	
 	@Override
 	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {    	
diff --git a/src/org/fox/ttcomics/MainActivity.java b/src/org/fox/ttcomics/MainActivity.java
index 648a12a..13af786 100644
--- a/src/org/fox/ttcomics/MainActivity.java
+++ b/src/org/fox/ttcomics/MainActivity.java
@@ -46,7 +46,8 @@ public class MainActivity extends CommonActivity {
 			
 			if (m_selectedTab != tab.getPosition() && m_selectedTab != -1) {
 				
-				ComicListFragment frag = new ComicListFragment(tab.getPosition()); 
+				ComicListFragment frag = new ComicListFragment();
+				frag.setMode(tab.getPosition());
 				
 				frag.setBaseDirectory(m_baseDirectory);
 				
@@ -84,7 +85,8 @@ public class MainActivity extends CommonActivity {
     		
            	Log.d(TAG, "selTab=" + m_selectedTab);
 
-           	ComicListFragment frag = new ComicListFragment(m_selectedTab);
+           	ComicListFragment frag = new ComicListFragment();
+           	frag.setMode(m_selectedTab);
 
             if (getIntent().getStringExtra("baseDir") != null) {
             	m_baseDirectory = getIntent().getStringExtra("baseDir");
-- 
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