Example usage for android.content Context registerComponentCallbacks

Introduction

In this page you can find the example usage for android.content Context registerComponentCallbacks.

Prototype

public void registerComponentCallbacks(ComponentCallbacks callback) 

Source Link

Document

Add a new ComponentCallbacks to the base application of the Context, which will be called at the same times as the ComponentCallbacks methods of activities and other components are called.

Usage

From source file:org.gateshipone.odyssey.fragments.OdysseyFragment.java

@Override
public void onAttach(Context context) {
    super.onAttach(context);

    if (null == mComponentCallback) {
        mComponentCallback = new OdysseyComponentCallback();
    }// w ww.  ja  va  2  s  .co  m

    // Register the memory trim callback with the system.
    context.registerComponentCallbacks(mComponentCallback);

    // This makes sure that the container activity has implemented
    // the callback interface. If not, it throws an exception
    try {
        mToolbarAndFABCallback = (ToolbarAndFABCallback) context;
    } catch (ClassCastException e) {
        throw new ClassCastException(context.toString() + " must implement ToolbarAndFABCallback");
    }
}

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From source file:at.diamonddogs.util.CacheManager.java

/**
 * Registers a component callback for cache cleaning on low memory
 *
 * @param c a {@link Context}//from  ww w.  ja  v a 2 s  .  c  o  m
 */
@TargetApi(14)
public void registerComponentCallback(Context c) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
        c.registerComponentCallbacks(new ComponentCallbackListener());
    }
}

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From source file:com.android.contacts.common.ContactPhotoManager.java

public static ContactPhotoManager getInstance(Context context) {
    if (sInstance == null) {
        Context applicationContext = context.getApplicationContext();
        sInstance = createContactPhotoManager(applicationContext);
        applicationContext.registerComponentCallbacks(sInstance);
        if (PermissionsUtil.hasContactsPermissions(context)) {
            sInstance.preloadPhotosInBackground();
        }//from  w  ww.j a v  a2s .c o m
    }
    return sInstance;
}

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From source file:com.boko.vimusic.cache.ImageCache.java

/**
 * Sets up the Lru cache//w  w w.j  a  va2s . c om
 * 
 * @param context
 *            The {@link Context} to use
 */
@SuppressLint("NewApi")
public void initLruCache(final Context context) {
    final ActivityManager activityManager = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    final int lruCacheSize = Math.round(MEM_CACHE_DIVIDER * activityManager.getMemoryClass() * 1024 * 1024);
    mLruCache = new MemoryCache(lruCacheSize);

    // Release some memory as needed
    context.registerComponentCallbacks(new ComponentCallbacks2() {

        /**
         * {@inheritDoc}
         */
        @Override
        public void onTrimMemory(final int level) {
            if (level >= TRIM_MEMORY_MODERATE) {
                evictAll();
            } else if (level >= TRIM_MEMORY_BACKGROUND) {
                mLruCache.trimToSize(mLruCache.size() / 2);
            }
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void onLowMemory() {
            // Nothing to do
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void onConfigurationChanged(final Configuration newConfig) {
            // Nothing to do
        }
    });
}

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From source file:com.andrew.apollo.cache.ImageCache.java

/**
 * Sets up the Lru cache//from  w  ww .  j  ava 2s .c o m
 * 
 * @param context The {@link Context} to use
 */
@SuppressLint("NewApi")
public void initLruCache(final Context context) {
    final ActivityManager activityManager = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    final int lruCacheSize = Math.round(MEM_CACHE_DIVIDER * activityManager.getMemoryClass() * 1024 * 1024);
    mLruCache = new MemoryCache(lruCacheSize);

    // Release some memory as needed
    if (ApolloUtils.hasICS()) {
        context.registerComponentCallbacks(new ComponentCallbacks2() {

            /**
             * {@inheritDoc}
             */
            @Override
            public void onTrimMemory(final int level) {
                if (level >= TRIM_MEMORY_MODERATE) {
                    evictAll();
                } else if (level >= TRIM_MEMORY_BACKGROUND) {
                    mLruCache.trimToSize(mLruCache.size() / 2);
                }
            }

            /**
             * {@inheritDoc}
             */
            @Override
            public void onLowMemory() {
                // Nothing to do
            }

            /**
             * {@inheritDoc}
             */
            @Override
            public void onConfigurationChanged(final Configuration newConfig) {
                // Nothing to do
            }
        });
    }
}

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From source file:com.utils.image.cache.ImageCache.java

/**
 * Sets up the Lru cache/*from   w w  w  . j  ava2 s  .  c  o m*/
 * 
 * @param context The {@link Context} to use
 */
@SuppressLint("NewApi")
public void initLruCache(final Context context) {
    final ActivityManager activityManager = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    final int lruCacheSize = Math.round(MEM_CACHE_DIVIDER * activityManager.getMemoryClass() * 1024 * 1024);

    KeelLog.d("lruCacheSize:" + lruCacheSize);
    mLruCache = new MemoryCache(lruCacheSize / 2);

    // Release some memory as needed
    if (ApolloUtils.hasICS()) {
        context.registerComponentCallbacks(new ComponentCallbacks2() {

            /**
             * {@inheritDoc}
             */
            @Override
            public void onTrimMemory(final int level) {
                if (level >= TRIM_MEMORY_MODERATE) {
                    evictAll();
                } else if (level >= TRIM_MEMORY_BACKGROUND) {
                    mLruCache.trimToSize(mLruCache.size() / 2);
                }
            }

            /**
             * {@inheritDoc}
             */
            @Override
            public void onLowMemory() {
                // Nothing to do
            }

            /**
             * {@inheritDoc}
             */
            @Override
            public void onConfigurationChanged(final Configuration newConfig) {
                // Nothing to do
            }
        });
    }
}

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