Example usage for android.support.v4.util LruCache LruCache

Introduction

In this page you can find the example usage for android.support.v4.util LruCache LruCache.

Prototype

public LruCache(int maxSize) 

Source Link

Usage

From source file:org.tigase.mobile.utils.AvatarHelper.java

public static void initilize(Context context_) {
    if (avatarCache == null) {
        context = context_;//from w  ww .  j av a 2s  . c  o  m

        density = context.getResources().getDisplayMetrics().density;
        defaultAvatarSize = Math.round(density * 50);

        // Get memory class of this device, exceeding this amount will throw
        // an
        // OutOfMemory exception.
        final int memClass = ((android.app.ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE))
                .getMemoryClass();

        // Use 1/8th of the available memory for this memory cache.
        final int cacheSize = 1024 * 1024 * memClass / 8;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {
            avatarCache = new LruCache<BareJID, Bitmap>(cacheSize) {
                @TargetApi(12)
                @Override
                protected int sizeOf(BareJID key, Bitmap bitmap) {
                    // The cache size will be measured in bytes rather than
                    // number of items. Ignoring placeholder bitmap as well.
                    return bitmap == mPlaceHolderBitmap ? 0 : bitmap.getByteCount();
                }
            };
        } else {
            // below SDK 12 there is no getByteCount method
            avatarCache = new LruCache<BareJID, Bitmap>(cacheSize) {
                @Override
                protected int sizeOf(BareJID key, Bitmap bitmap) {
                    // The cache size will be measured in bytes rather than
                    // number of items. Ignoring placeholder bitmap as well.
                    return bitmap == mPlaceHolderBitmap ? 0 : (bitmap.getRowBytes() * bitmap.getHeight());
                }
            };
        }

        mPlaceHolderBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.user_avatar);
    }
}

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From source file:com.vinay.volley.lazyload.BitmapCache.java

/**
 * Initialize the cache.//  w w w .j  a v a  2 s . c o m
 */
private void init(int memCacheSize) {
    // Set up memory cache
    Log.d(TAG, "Memory cache created (size = " + memCacheSize + "KB)");
    mMemoryCache = new LruCache<String, Bitmap>(memCacheSize) {
        /**
         * Measure item size in kilobytes rather than units which is more practical for a bitmap cache
         */
        @Override
        protected int sizeOf(String key, Bitmap bitmap) {
            final int bitmapSize = getBitmapSize(bitmap) / 1024;
            return bitmapSize == 0 ? 1 : bitmapSize;
        }
    };
}

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From source file:com.android.volley.cache.BitmapCache.java

/**
 * Initialize the cache.//from  w w w.j  a v a 2s.c  o m
 */
private void init(int memCacheSize) {
    // Set up memory cache
    VolleyLog.d(TAG, "Memory cache created (size = " + memCacheSize + "KB)");
    mMemoryCache = new LruCache<String, Bitmap>(memCacheSize) {
        /**
         * Measure item size in kilobytes rather than units which is more practical
         * for a bitmap cache
         */
        @Override
        protected int sizeOf(String key, Bitmap bitmap) {
            final int bitmapSize = getBitmapSize(bitmap) / 1024;
            return bitmapSize == 0 ? 1 : bitmapSize;
        }
    };
}

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From source file:com.ncode.android.apps.schedo.util.BitmapCache.java

/**
 * Initialize the cache.//  www  . ja  v a2s .  c  om
 */
private void init(int memCacheSize) {
    // Set up memory cache
    LogUtils.LOGD(TAG, "Memory cache created (size = " + memCacheSize + "KB)");
    mMemoryCache = new LruCache<String, Bitmap>(memCacheSize) {
        /**
         * Measure item size in kilobytes rather than units which is more practical
         * for a bitmap cache
         */
        @Override
        protected int sizeOf(String key, Bitmap bitmap) {
            final int bitmapSize = getBitmapSize(bitmap) / 1024;
            return bitmapSize == 0 ? 1 : bitmapSize;
        }
    };
}

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From source file:li.zeitgeist.android.worker.ThumbnailWorker.java

/**
 * Constructs the thumbnail loader./*from   w  w  w. jav  a  2  s.  c  om*/
 *
 * This starts the thread pool, initializes the memory cache,
 * and creates the directories for the disk-cache (if necessary).
 * 
 * @param context of the gallery service.
 */
public ThumbnailWorker(Context context) {
    Log.v(TAG, "constructed");

    api = ZeitgeistApiFactory.createInstance(context);

    // start thread pool
    pool = Executors.newFixedThreadPool(THREADS);

    // initialize memory cache
    /*
            
     TODO: somehow that doesn't work at all, why?
            
    int memCacheSize = 2 * 1024 * 1024; // 2 MiB
    memCache = new LruCache<Integer, Bitmap>(memCacheSize) {
        protected int sizeOf(Integer key, Bitmap value) {
            return value.getRowBytes() * value.getHeight();
        }
    };
            
    */
    // 150 * ~16 KiB = 2250 KiB
    memCache = new LruCache<Integer, Bitmap>(150);

    // create disk cache directory
    File externalStorageDirectory = context.getExternalFilesDir(null);
    diskCache = new File(externalStorageDirectory, "cache");
    if (!diskCache.exists()) {
        diskCache.mkdirs();
    }
    Log.d(TAG, "disk cache: " + diskCache.getAbsolutePath());

    // load video overlay bitmap
    videoOverlayBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.video_overlay);
}

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From source file:com.social.solution.fragment.MyImageFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    //View view  = inflater.inflate(R.layout.image_list, container, false);
    View view = inflater.inflate(R.layout.image_list, container, false);

    mSwipeLayout = (SwipeRefreshLayout) view.findViewById(R.id.swipe_refresh_layout);
    mSwipeLayout.setProgressViewOffset(false, 150, 200);

    storedView = view;/*from  www .j a v a  2  s . co m*/

    parentActivity = getActivity();
    mInflater = LayoutInflater.from(parentActivity);

    //imageUrls = TweetBank.getAllImageUrls();
    imageTweets = TweetBank.getAllNewsTweets();

    mRequestQueue = Volley.newRequestQueue(parentActivity);
    mImageLoader = new ImageLoader(mRequestQueue, new ImageLoader.ImageCache() {
        private final LruCache<String, Bitmap> mCache = new LruCache<String, Bitmap>(10);

        public void putBitmap(String url, Bitmap bitmap) {
            mCache.put(url, bitmap);
        }

        public Bitmap getBitmap(String url) {
            return mCache.get(url);
        }
    });

    listView = (ObservableListView) view.findViewById(R.id.mylist);

    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        // Scroll to the specified position after layout
        Bundle args = getArguments();
        if (args != null && args.containsKey(ARG_INITIAL_POSITION)) {
            final int initialPosition = args.getInt(ARG_INITIAL_POSITION, 0);
            ScrollUtils.addOnGlobalLayoutListener(listView, new Runnable() {
                @Override
                public void run() {
                    // scrollTo() doesn't work, should use setSelection()
                    listView.setSelection(initialPosition);
                }
            });
        }

        // TouchInterceptionViewGroup should be a parent view other than ViewPager.
        // This is a workaround for the issue #117:
        // https://github.com/ksoichiro/Android-ObservableScrollView/issues/117
        listView.setTouchInterceptionViewGroup((ViewGroup) parentActivity.findViewById(R.id.root));
        listView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }

    View newsrowslist = (View) inflater.inflate(R.layout.newsrowslistlayout, listView, false);

    newsrowslist.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            System.out.println("pranjal danger");
            return false;
        }
    });

    imageAdapter = new ImageAdapter(parentActivity);
    imageAdapterHorizontal = new ImageAdapterHorizontal(parentActivity);

    setmydata(listView, inflater.inflate(R.layout.padding, listView, false));

    listView.setAdapter(imageAdapterHorizontal);

    listView.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            //System.out.println("hello pranjal how are you");
            return false;
        }
    });

    /*
    View horizontalView  = null;
    ViewGroup imageviews = null;
    int count            = 0;
            
    for (Tweet t : imageTweets) {
    if(count == 0) {
        //horizontalView = inflater.inflate(R.layout.myhorizontalscrollviewa, null);//, true);
        horizontalView = inflater.inflate(R.layout.myhorizontalscrollviewa, container, false);
        TextView    tv = new TextView(parentActivity);
        tv.setText("POLITICS");
        newsrowslist.addView(tv);
        newsrowslist.addView(horizontalView);
        imageviews     = (ViewGroup) horizontalView.findViewById(R.id.imageviews);
    }
            
    ++count;
    count = count%5;
            
    //final View v = mInflater.inflate(R.layout.new_grid_item, null);
    final View v = mInflater.inflate(R.layout.new_grid_item, container, false);
    final SquareImageView picture = (SquareImageView) v.findViewById(R.id.picture);
    final TextView name = (TextView) v.findViewById(R.id.picturetext);
            
    name.setTag(0);
    name.setTag(R.id.action0, name.getTop());
            
    name.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            int flag = (int) v.getTag();
            Layout t = name.getLayout();
            
            int left = name.getLeft();
            int right = name.getRight();
            int bottom = name.getBottom();
            
            if (flag == 0) {
                //name.setMaxLines(5);
                System.out.println("pranjal LAYOUT 0 width = " + t.getWidth() + " height " + t.getHeight());
                int top = 0;
                // l t r b
                name.layout(left, top, right, picture.getBottom());
                name.setBackgroundColor(Color.parseColor("#FF000000"));
                name.setGravity(Gravity.NO_GRAVITY);
                name.setTag(1);
            } else {
                //name.setMaxLines(2);
                System.out.println("pranjal LAYOUT 1 width = " + t.getWidth() + " height " + t.getHeight());
                int top = (int) name.getTag(R.id.action0);
            
                System.out.println("new top position is " + top);
            
                // l t r b
                name.layout(left, picture.getBottom() - 40, right, picture.getBottom());
                name.setGravity(Gravity.NO_GRAVITY);
                name.setTag(0);
            }
            return false;
        }
    });
            
    picture.setImageUrl(t.entities.media.get(0).mediaUrl, mImageLoader);
    String temp  = t.text;
    temp = temp+"\n";
    String temp1 = temp.replaceAll("http.*?\\s", " ").replaceAll("http.*?\\n", "");
    System.out.println("STRING1 "+temp+ " STRING2 "+temp1);
    name.setText(Html.fromHtml("<b>@" + t.user.screenName + "</b><br>" + temp1));
    imageviews.addView(v);
    }*/
    return view;
}

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From source file:com.bluepixel.android.sgpool.util.BitmapCache.java

/**
 * Initialize the cache.//from  w w w . j  a v a 2  s . c om
 */
private void init(int memCacheSize) {
    // Set up memory cache
    LOGD(TAG, "Memory cache created (size = " + memCacheSize + "KB)");
    mMemoryCache = new LruCache<String, Bitmap>(memCacheSize) {
        /**
         * Measure item size in kilobytes rather than units which is more practical
         * for a bitmap cache
         */
        @Override
        protected int sizeOf(String key, Bitmap bitmap) {
            final int bitmapSize = getBitmapSize(bitmap) / 1024;
            return bitmapSize == 0 ? 1 : bitmapSize;
        }
    };
}

---

From source file:ch.carteggio.ui.ConversationIconLoader.java

/**
 * Constructor./*  www  . j  a v a 2s  .co m*/
 *
 * @param context
 *         A {@link Context} instance.
 * @param defaultBackgroundColor
 *         The ARGB value to be used as background color for the fallback picture. {@code 0} to
 *         use a dynamically calculated background color.
 */
public ConversationIconLoader(Context context, int defaultBackgroundColor) {
    Context appContext = context.getApplicationContext();
    mContentResolver = appContext.getContentResolver();
    mResources = appContext.getResources();
    mHelper = new CarteggioProviderHelper(appContext);

    float scale = mResources.getDisplayMetrics().density;
    mPictureSizeInPx = (int) (PICTURE_SIZE * scale);

    mDefaultBackgroundColor = defaultBackgroundColor;

    ActivityManager activityManager = (ActivityManager) appContext.getSystemService(Context.ACTIVITY_SERVICE);
    int memClass = activityManager.getMemoryClass();

    // Use 1/16th of the available memory for this memory cache.
    final int cacheSize = 1024 * 1024 * memClass / 16;

    mBitmapCache = new LruCache<Long, Bitmap>(cacheSize) {
        @Override
        protected int sizeOf(Long key, Bitmap bitmap) {
            // The cache size will be measured in bytes rather than number of items.
            return bitmap.getByteCount();
        }
    };
}

---

From source file:github.popeen.dsub.util.ImageLoader.java

public ImageLoader(Context context) {
    this.context = context;
    handler = new Handler(Looper.getMainLooper());
    final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
    cacheSize = maxMemory / 4;//w ww  .  ja v  a2 s . com

    // Determine the density-dependent image sizes.
    imageSizeDefault = context.getResources().getDrawable(R.drawable.unknown_album).getIntrinsicHeight();
    DisplayMetrics metrics = context.getResources().getDisplayMetrics();
    imageSizeLarge = Math.round(Math.min(metrics.widthPixels, metrics.heightPixels));
    avatarSizeDefault = context.getResources().getDrawable(R.drawable.ic_social_person).getIntrinsicHeight();

    cache = new LruCache<String, Bitmap>(cacheSize) {
        @Override
        protected int sizeOf(String key, Bitmap bitmap) {
            return bitmap.getRowBytes() * bitmap.getHeight() / 1024;
        }

        @Override
        protected void entryRemoved(boolean evicted, String key, Bitmap oldBitmap, Bitmap newBitmap) {
            if (evicted) {
                if ((oldBitmap != nowPlaying && oldBitmap != nowPlayingSmall) || clearingCache) {
                    oldBitmap.recycle();
                } else if (oldBitmap != newBitmap) {
                    cache.put(key, oldBitmap);
                }
            }
        }
    };
}

---

From source file:com.foxykeep.datadroid.requestmanager.RequestManager.java

protected RequestManager(Context context, Class<? extends RequestService> requestService) {
    mContext = context.getApplicationContext();

    mRequestService = requestService;/*  www .jav  a2  s .  c  om*/
    mRequestReceiverMap = new HashMap<Request, RequestReceiver>();
    mMemoryCache = new LruCache<Request, Bundle>(30);
}

---

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