improved load speed of cached thumbnail icons

diff --git a/src/com/nexes/manager/tablet/ThumbnailCreator.java b/src/com/nexes/manager/tablet/ThumbnailCreator.java
index 4634c67..ac679a4 100644 (file)
--- a/src/com/nexes/manager/tablet/ThumbnailCreator.java
+++ b/src/com/nexes/manager/tablet/ThumbnailCreator.java
@@ -75,47 +75,59 @@ public class ThumbnailCreator extends Thread {
                        
                        final File file = new File(mDir + "/" + mFiles.get(i));
                        
-                       if (isImageFile(file.getName())) {
-                               long len_kb = file.length() / 1024;
-                               
-                               BitmapFactory.Options options = new BitmapFactory.Options();
-                               options.outWidth = mWidth;
-                               options.outHeight = mHeight;
-                                       
-                               if (len_kb > 500 && len_kb < 2000) {
-                                       options.inSampleSize = 16;
-                                       options.inPurgeable = true;
-                                       options.inPreferQualityOverSpeed = false;
-                                       mThumb = new SoftReference<Bitmap>(BitmapFactory.decodeFile(file.getPath(), options));
-                                                                               
-                               } else if (len_kb >= 2000) {
-                                       options.inSampleSize = 32;
-                                       options.inPurgeable = true;
-                                       options.inPreferQualityOverSpeed = false;
-                                       mThumb = new SoftReference<Bitmap>(BitmapFactory.decodeFile(file.getPath(), options));
-                                                                       
-                               } else if (len_kb <= 500) {
-                                       options.inPurgeable = true;
-                                       mThumb = new SoftReference<Bitmap>(Bitmap.createScaledBitmap(
-                                                                                                          BitmapFactory.decodeFile(file.getPath()),
-                                                                                                          mWidth,
-                                                                                                          mHeight,
-                                                                                                          false));
-                               }
-                               
-                               final BitmapDrawable d = new BitmapDrawable(mThumb.get());
-                               
-                               d.setGravity(Gravity.CENTER);
-                               mCacheMap.put(file.getPath(), d);
-                               
+                       //we already loaded this thumbnail, just return it.
+                       if (mCacheMap.containsKey(file.getPath())) {
                                mHandler.post(new Runnable() {
                                        @Override
                                        public void run() {
                                                Message msg = mHandler.obtainMessage();
-                                               msg.obj = (BitmapDrawable)d;
+                                               msg.obj = mCacheMap.get(file.getPath());
                                                msg.sendToTarget();
                                        }
                                });
+                               
+                       //we havn't loaded it yet, lets make it. 
+                       } else {
+                               if (isImageFile(file.getName())) {
+                                       long len_kb = file.length() / 1024;
+                                       
+                                       BitmapFactory.Options options = new BitmapFactory.Options();
+                                       options.outWidth = mWidth;
+                                       options.outHeight = mHeight;
+                                                                                       
+                                       if (len_kb > 500 && len_kb < 2000) {
+                                               options.inSampleSize = 16;
+                                               options.inPurgeable = true;
+                                               mThumb = new SoftReference<Bitmap>(BitmapFactory.decodeFile(file.getPath(), options));
+                                                                                       
+                                       } else if (len_kb >= 2000) {
+                                               options.inSampleSize = 32;
+                                               options.inPurgeable = true;
+                                               mThumb = new SoftReference<Bitmap>(BitmapFactory.decodeFile(file.getPath(), options));
+                                                                               
+                                       } else if (len_kb <= 500) {
+                                               options.inPurgeable = true;
+                                               mThumb = new SoftReference<Bitmap>(Bitmap.createScaledBitmap(
+                                                                                                                  BitmapFactory.decodeFile(file.getPath()),
+                                                                                                                  mWidth,
+                                                                                                                  mHeight,
+                                                                                                                  false));
+                                       }
+                                       
+                                       final BitmapDrawable d = new BitmapDrawable(mThumb.get());
+                                       
+                                       d.setGravity(Gravity.CENTER);
+                                       mCacheMap.put(file.getPath(), d);
+                                       
+                                       mHandler.post(new Runnable() {
+                                               @Override
+                                               public void run() {
+                                                       Message msg = mHandler.obtainMessage();
+                                                       msg.obj = (BitmapDrawable)d;
+                                                       msg.sendToTarget();
+                                               }
+                                       });
+                               }
                        }
                }
        }