Android Open Source - Test-SimpleTwitterClient Data Cache

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.example.Twitter_Android.Logic;
/**//from   ww w  . j a v a2  s  .  c o  m
 *  Some sort of cache.
 */
import android.graphics.Bitmap;
import android.widget.BaseAdapter;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public final class DataCache {
  private static final Map<String, Bitmap> bitmaps = new HashMap<>();
  private static final Map<Long, Person> personInfo = new ConcurrentHashMap<>();
  private static final Map<String, BaseAdapter> adapters = new ConcurrentHashMap<>();
  private static final DataCache instance = new DataCache();
  private long bitmapCacheSize;
  private static final int MAX_CACHE_SIZE = 16 * 1024 * 1024;
  private int maxBitmapDimension = 500;
  private long connectedUserID;

  private DataCache() {
  }

  public static DataCache getInstance() {
    return instance;
  }

  public void putImage(String key, Bitmap image) {
    bitmapCacheSize += image.getByteCount();
    if (bitmapCacheSize > MAX_CACHE_SIZE) {
      bitmaps.clear();
      bitmapCacheSize = 0;
    }
    bitmaps.put(key, image);
  }

  public Bitmap getImage(String key) {
    return bitmaps.get(key);

  }

  public void putPerson(long key, Person person) {
    personInfo.put(key, person);
  }

  public Person getPerson(long key) {
    return personInfo.get(key);
  }

  public long getConnectedUserID() {
    return connectedUserID;
  }

  public void setConnectedUserID(long uid) {
    if (connectedUserID == 0) {
      connectedUserID = uid;
    }
  }

  public void setScreenWidth(int dimension) {
    maxBitmapDimension = dimension;
  }

  public int getScreenWidth() {
    return maxBitmapDimension;
  }

  public void saveAdapter(String key, BaseAdapter toSave) {
    adapters.put(key, toSave);
  }

  public BaseAdapter getAdapter(String key) {
    return adapters.get(key);
  }
}

Java Source Code List

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