Example usage for android.util SparseArray SparseArray

Introduction

In this page you can find the example usage for android.util SparseArray SparseArray.

Prototype

public SparseArray()

Source Link

Document

Creates a new SparseArray containing no mappings.

Usage

From source file:cn.arvin.example.ui.custom.observablescrollview.CacheFragmentStatePagerAdapter.java

public CacheFragmentStatePagerAdapter(FragmentManager fm) {
    super(fm);
    mPages = new SparseArray<Fragment>();
    mFm = fm;
}

From source file:com.android.llibs.views.observablescrollview.CacheFragmentStatePagerAdapter.java

public CacheFragmentStatePagerAdapter(FragmentManager fm) {
    super(fm);
    mPages = new SparseArray<>();
    mFm = fm;
}

From source file:Main.java

/**
 * This picks a dominant color, looking for high-saturation, high-value, repeated hues.
 * @param bitmap The bitmap to scan/*from w  w  w.j av  a  2s  .  co m*/
 * @param samples The approximate max number of samples to use.
 */
static int findDominantColorByHue(Bitmap bitmap, int samples) {
    final int height = bitmap.getHeight();
    final int width = bitmap.getWidth();
    int sampleStride = (int) Math.sqrt((height * width) / samples);
    if (sampleStride < 1) {
        sampleStride = 1;
    }

    // This is an out-param, for getting the hsv values for an rgb
    float[] hsv = new float[3];

    // First get the best hue, by creating a histogram over 360 hue buckets,
    // where each pixel contributes a score weighted by saturation, value, and alpha.
    float[] hueScoreHistogram = new float[360];
    float highScore = -1;
    int bestHue = -1;

    for (int y = 0; y < height; y += sampleStride) {
        for (int x = 0; x < width; x += sampleStride) {
            int argb = bitmap.getPixel(x, y);
            int alpha = 0xFF & (argb >> 24);
            if (alpha < 0x80) {
                // Drop mostly-transparent pixels.
                continue;
            }
            // Remove the alpha channel.
            int rgb = argb | 0xFF000000;
            Color.colorToHSV(rgb, hsv);
            // Bucket colors by the 360 integer hues.
            int hue = (int) hsv[0];
            if (hue < 0 || hue >= hueScoreHistogram.length) {
                // Defensively avoid array bounds violations.
                continue;
            }
            float score = hsv[1] * hsv[2];
            hueScoreHistogram[hue] += score;
            if (hueScoreHistogram[hue] > highScore) {
                highScore = hueScoreHistogram[hue];
                bestHue = hue;
            }
        }
    }

    SparseArray<Float> rgbScores = new SparseArray<Float>();
    int bestColor = 0xff000000;
    highScore = -1;
    // Go back over the RGB colors that match the winning hue,
    // creating a histogram of weighted s*v scores, for up to 100*100 [s,v] buckets.
    // The highest-scoring RGB color wins.
    for (int y = 0; y < height; y += sampleStride) {
        for (int x = 0; x < width; x += sampleStride) {
            int rgb = bitmap.getPixel(x, y) | 0xff000000;
            Color.colorToHSV(rgb, hsv);
            int hue = (int) hsv[0];
            if (hue == bestHue) {
                float s = hsv[1];
                float v = hsv[2];
                int bucket = (int) (s * 100) + (int) (v * 10000);
                // Score by cumulative saturation * value.
                float score = s * v;
                Float oldTotal = rgbScores.get(bucket);
                float newTotal = oldTotal == null ? score : oldTotal + score;
                rgbScores.put(bucket, newTotal);
                if (newTotal > highScore) {
                    highScore = newTotal;
                    // All the colors in the winning bucket are very similar. Last in wins.
                    bestColor = rgb;
                }
            }
        }
    }
    return bestColor;
}

From source file:com.gm.grecyclerview.SimpleAdapter.java

SimpleAdapter() {
    this.cells = new ArrayList<>();
    this.cellTypeMap = new SparseArray<>();
    setHasStableIds(true);
}

From source file:ch.gianulli.flashcards.lists.CardsAdapter.java

public CardsAdapter(Context context, ArrayList<Card> cards, OnCardAnsweredListener listener) {
    mInflater = LayoutInflater.from(context);
    if (cards != null) {
        mCards = new ArrayList<>(cards);
    } else {//from w  ww.j a  v  a  2  s.  co m
        mCards = new ArrayList<>();
    }
    mListener = listener;
    mAnsweredCards = new SparseArray<>();

    // Get font size from preferences
    mPreferenceModel = new PreferenceModel(context);
    mFontSize = mPreferenceModel.getFontSize();
    mMathMLEnabled = mPreferenceModel.isMathMLEnabled();
}

From source file:com.dgsd.android.ShiftTracker.Adapter.TemplateAdapter.java

public TemplateAdapter(Context context) {
    super(context, R.layout.list_item_template, null, new String[] { DbField.ID.name },
            new int[] { R.id.container }, 0);

    this.setViewBinder(this);
    mTimeFormat = DateFormat.getTimeFormat(context);

    //Caching/*from   w  w  w  . j  av a2 s  .  c  om*/
    mIdToTimeArray = new SparseArray<String>();
}

From source file:com.secupwn.aimsicd.AndroidIMSICatcherDetector.java

public AndroidIMSICatcherDetector() {
    mActivityTaskMap = new SparseArray<>();
}

From source file:net.naonedbus.rest.controller.impl.ParkingPublicsController.java

public ParkingPublicsController() {
    super("opendata", "answer", "data", "Groupes_Parking", "Groupe_Parking");

    statuts = new SparseArray<ParkingPublicStatut>();
    for (final ParkingPublicStatut statut : ParkingPublicStatut.values()) {
        statuts.put(statut.getValue(), statut);
    }//from w  w w  . j av a 2s. c  o m
}

From source file:net.eledge.android.toolkit.db.internal.TableBuilder.java

public String[] update(Class<?> clazz, int oldVersion, int newVersion) {
    SparseArray<List<String>> versionUpdates = new SparseArray<>();
    versionUpdates.put(-1, new ArrayList<String>());
    for (int i = oldVersion + 1; i <= newVersion; i++) {
        versionUpdates.put(i, new ArrayList<String>());
    }// w ww  .  j  a  v a  2s  . co  m
    if (!doesTableExists(clazz)) {
        versionUpdates.get(-1).add(create(clazz));
    } else {
        versionUpdates.get(-1).addAll(createTableUpdates(clazz));
    }
    collectTableUpdatesAnnotations(versionUpdates, clazz);
    collectFieldUpdatesAnnotations(versionUpdates, clazz);
    return StringArrayUtils.toArray(versionUpdates);
}

From source file:com.github.monxalo.android.widget.SectionCursorAdapter.java

public SectionCursorAdapter(Context context, Cursor c, int headerLayout, int groupColumn) {
    super(context, c, 0);

    mSectionsIndexer = new SparseArray<String>();

    mHeaderRes = headerLayout;//from  w w  w.j a  v a2  s . com
    mGroupColumn = groupColumn;
    mLayoutInflater = LayoutInflater.from(context);

    if (c != null) {
        calculateSectionHeaders();
        c.registerDataSetObserver(mDataSetObserver);
    }
}