Example usage for android.os Handler obtainMessage

Introduction

In this page you can find the example usage for android.os Handler obtainMessage.

Prototype

public final Message obtainMessage(int what, Object obj) 

Source Link

Document

Same as #obtainMessage() , except that it also sets the what and obj members of the returned Message.

Usage

From source file:it.fdev.utils.DrawableManager.java

public void fetchDrawableOnThread(final String urlString, final DrawableManagerListener listener) {
    if (drawableMap.containsKey(urlString)) {
        listener.onLoadingComplete(drawableMap.get(urlString));
    }// w w w .jav  a 2s.c o m
    final Handler handler = new Handler() {
        @Override
        public void handleMessage(Message message) {
            listener.onLoadingComplete((Drawable) message.obj);
        }
    };
    final Handler errorHandler = new Handler() {
        @Override
        public void handleMessage(Message message) {
            listener.onLoadingError();
        }
    };
    Thread thread = new Thread() {
        @Override
        public void run() {
            //TODO : set imageView to a "pending" image
            Drawable drawable = fetchDrawable(urlString);
            if (drawable != null) {
                Message message = handler.obtainMessage(1, drawable);
                handler.sendMessage(message);
            } else {
                Message message = new Message();
                errorHandler.sendMessage(message);
            }
        }
    };
    thread.start();
}

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From source file:com.binroot.fatpita.BitmapManager2.java

public void fetchBitmapOnThread(final String urlString, final ImageView imageView,
        final ProgressBar indeterminateProgressBar, final Activity act, final int sample) {
    SoftReference<Bitmap> ref = mCache.get(urlString);
    if (ref != null && ref.get() != null) {
        imageView.setImageBitmap(ref.get());
        return;//www  .  j a  va2  s  . co  m
    }

    final Runnable progressBarShow = new Runnable() {
        public void run() {
            if (indeterminateProgressBar != null) {
                imageView.setVisibility(View.GONE);
                indeterminateProgressBar.setVisibility(View.VISIBLE);
            }
        }
    };
    final Runnable progressBarHide = new Runnable() {
        public void run() {
            if (indeterminateProgressBar != null) {
                indeterminateProgressBar.setVisibility(View.GONE);
                imageView.setVisibility(View.VISIBLE);
            }
        }
    };

    final Handler handler = new Handler() {
        @Override
        public void handleMessage(Message message) {
            if (indeterminateProgressBar != null && act != null)
                act.runOnUiThread(progressBarHide);
            imageView.setImageBitmap((Bitmap) message.obj);
        }
    };

    Thread thread = new Thread() {
        @Override
        public void run() {
            if (indeterminateProgressBar != null && act != null)
                act.runOnUiThread(progressBarShow);
            Bitmap bitmap = fetchBitmap(urlString, sample);
            Message message = handler.obtainMessage(1, bitmap);
            handler.sendMessage(message);
        }
    };
    thread.start();
}

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From source file:com.nachiket.titan.LibraryPagerAdapter.java

/**
 * Set the sort mode for the current adapter. Current adapter must be a
 * MediaAdapter. Saves this sort mode to preferences and updates the list
 * associated with the adapter to display the new sort mode.
 *
 * @param mode The sort mode. See {@link MediaAdapter#setSortMode(int)} for
 * details.//w  w  w . j a v a 2 s.  c  o  m
 */
public void setSortMode(int mode) {
    MediaAdapter adapter = (MediaAdapter) mCurrentAdapter;
    if (mode == adapter.getSortMode())
        return;

    adapter.setSortMode(mode);
    requestRequery(adapter);

    // Force a new FastScroller to be created so the scroll sections
    // are updated.
    ListView view = mLists[mTabOrder[mCurrentPage]];
    view.setFastScrollEnabled(false);
    enableFastScroll(view);

    Handler handler = mWorkerHandler;
    handler.sendMessage(handler.obtainMessage(MSG_SAVE_SORT, adapter));
}

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From source file:com.azcltd.android.test.kolesov.DrawableManager.java

public void fetchDrawableOnThread(final String urlString, final ImageView imageView, final boolean isThumbnail,
        final boolean forceUpdate) {

    if (drawableMap.containsKey(urlString) && !forceUpdate) {
        Drawable image = drawableMap.get(urlString);

        SetDrawableToImageView(image, imageView, isThumbnail);
        return;//from   w w w. j a  v  a2s .  c  om
    }

    final Handler handler = new Handler() {
        @Override
        public void handleMessage(Message message) {
            DrawableWithFlag obj = (DrawableWithFlag) message.obj;
            Drawable image = obj.image;
            boolean flag = obj.isNeedThumbnailed;
            SetDrawableToImageView(image, imageView, flag);
        }
    };

    Thread thread = new Thread() {
        @Override
        public void run() {
            //setPriority(3);
            Drawable drawable = fetchDrawable(urlString, forceUpdate);
            if (drawable != null) {
                Message message = handler.obtainMessage(1, new DrawableWithFlag(drawable, isThumbnail));
                handler.sendMessage(message);
                //                        try{
                //                            //sleep(100);
                //                        }
                //                        catch(Exception ex) {
                //                            int i =0;
                //                        }
            }
        }
    };
    thread.start();
}

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From source file:com.binroot.fatpita.BitmapManager.java

public void fetchBitmapOnThread(final String urlString, final ImageView imageView,
        final ProgressBar indeterminateProgressBar, final Activity act, final boolean saveToHistory) {
    SoftReference<Bitmap> ref = mCache.get(urlString);
    if (ref != null && ref.get() != null) {
        imageView.setImageBitmap(ref.get());
        return;//  w w  w. jav a2  s. c om
    }

    final Runnable progressBarShow = new Runnable() {
        public void run() {
            if (indeterminateProgressBar != null) {
                imageView.setVisibility(View.GONE);
                indeterminateProgressBar.setVisibility(View.VISIBLE);
            }
        }
    };
    final Runnable progressBarHide = new Runnable() {
        public void run() {
            if (indeterminateProgressBar != null) {
                indeterminateProgressBar.setVisibility(View.GONE);
                imageView.setVisibility(View.VISIBLE);
            }
        }
    };

    final Handler handler = new Handler() {
        @Override
        public void handleMessage(Message message) {
            if (indeterminateProgressBar != null && act != null)
                act.runOnUiThread(progressBarHide);
            imageView.setImageBitmap((Bitmap) message.obj);
        }
    };

    Thread thread = new Thread() {
        @Override
        public void run() {
            if (indeterminateProgressBar != null && act != null)
                act.runOnUiThread(progressBarShow);
            Bitmap bitmap = fetchBitmap(urlString, saveToHistory);
            Message message = handler.obtainMessage(1, bitmap);
            handler.sendMessage(message);
        }
    };
    thread.start();
}

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From source file:com.cm.beer.util.ContentManager.java

/**
 * //from w  ww  .  j a  va 2s . c  o m
 * @param urlString
 * @param imageView
 */
public void fetchContentOnThread(final String urlString, final Handler handler) {
    if (mContentCache.containsKey(urlString)) {
        SoftReference<String> softReference = mContentCache.get(urlString);

        if ((softReference == null) || (softReference.get() == null)) {
            mContentCache.remove(urlString);
            if (Logger.isLogEnabled())
                Logger.log("fetchContentOnThread():Soft Reference has been Garbage Collected:" + urlString);
        } else {
            String jsonStr = softReference.get();
            if (Logger.isLogEnabled())
                Logger.log(urlString + "=>" + jsonStr);
            Message message = handler.obtainMessage(1, jsonStr);
            handler.sendMessage(message);
            return;
        }
    }

    Thread thread = new Thread() {
        @Override
        public void run() {
            while (mLockCache.containsKey(urlString)) {
                if (Logger.isLogEnabled())
                    Logger.log("URI download request in progress:" + urlString);
                try {
                    Thread.sleep(1000L);
                } catch (InterruptedException e) {
                    Log.e(this.getClass().getName(), e.getMessage());
                }
            }
            String content = fetchContent(urlString);
            Message message = handler.obtainMessage(1, content);
            handler.sendMessage(message);
        }
    };
    thread.start();
}

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From source file:org.jinzora.util.DrawableManager.java

public void fetchDrawableOnThread(final String urlString, final ImageView imageView) {
    if (urlString == null) {
        if (DBG)/*  www  .j  a  v  a  2 s  .  c o m*/
            Log.d(TAG, "Null image url.");
        synchronized (pendingViews) {
            pendingViews.remove(imageView);
        }
        return;
    }

    synchronized (pendingViews) {
        pendingViews.put(imageView, urlString);
    }

    if (drawableMap.containsKey(urlString)) {
        SoftReference<Drawable> reference = drawableMap.get(urlString);
        Drawable drawable = reference.get();
        if (drawable != null) {
            if (DBG)
                Log.d(TAG, "Image cached in memory.");
            imageView.setImageDrawable(drawable);
            return;
        } else {
            if (DBG)
                Log.d(TAG, "Soft reference cleared.");
            drawableMap.remove(urlString);
        }
    }

    File localFile = getLocalFile(urlString);
    if (localFile != null && localFile.exists()) {
        if (DBG)
            Log.d(TAG, "Image from disk.");
        imageView.setImageDrawable(fetchDrawable(urlString));
        return;
    }

    final Handler handler = new Handler() {
        @Override
        public void handleMessage(Message message) {
            synchronized (pendingViews) {
                String latest = pendingViews.get(imageView);
                if (urlString.equals(latest)) {
                    imageView.setImageDrawable((Drawable) message.obj);
                }
            }
        }
    };

    new Thread() {
        @Override
        public void run() {
            Drawable drawable = fetchDrawable(urlString);
            Message message = handler.obtainMessage(1, drawable);
            handler.sendMessage(message);
        }
    }.start();
}

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From source file:mp.teardrop.LibraryPagerAdapter.java

/**
 * Schedule a query to be run for the given adapter on the worker thread.
 *
 * @param adapter The adapter to run the query for.
 *///from www. j a  v  a2 s .  c  om
private void postRunQuery(LibraryAdapter adapter) {
    mRequeryNeeded[adapter != null ? adapter.getMediaType() : MediaUtils.TYPE_UNIFIED] = false;
    Handler handler = mWorkerHandler;
    handler.removeMessages(MSG_RUN_QUERY, adapter);
    handler.sendMessage(handler.obtainMessage(MSG_RUN_QUERY, adapter));
}

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From source file:com.scanvine.android.util.SVDownloadManager.java

private void fetchUrlOnThread(final Context context, final String urlString, final Handler handler,
        final boolean isImage) {
    if (urlString == null || urlString.trim().length() == 0)
        return;/*from  ww w.java  2 s  . c  o m*/

    Thread thread = new Thread() {
        @Override
        public void run() {
            boolean success = false;
            File localFile = cacheFor(context, urlString);
            if (localFile.exists())
                success = true;
            else {
                Log.i("" + this, "Fetching: " + urlString);
                success = isImage ? fetchDrawable(context, urlString, localFile)
                        : fetchFile(context, urlString, localFile);
            }
            if (success) {
                Message message = handler.obtainMessage(1, localFile);
                handler.sendMessage(message);
            }
        }
    };
    thread.start();
}

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From source file:de.unwesen.web.DownloadCache.java

public void fetch(List<? extends CacheItem> items, Handler handler) {
    if (null == items || 0 == items.size() || null == handler) {
        return;/*from w ww . j a va2s . c  o  m*/
    }

    int added = 0;
    for (CacheItem item : items) {
        // Check whether file already exists.
        String filename = get(item.mDownloadUri);
        if (null != filename) {
            item.mFilename = filename;
            handler.obtainMessage(CACHE_SUCCESS, item).sendToTarget();
            continue;
        }

        // Otherwise add the item to the fetcher queue.
        item.mHandler = handler;
        mFetcherQueue.add(item);
        ++added;
    }

    if (0 != added) {
        mFetcher.interrupt();
    }
}

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