Android Open Source - slider Tile Shifter

From Project

Back to project page slider.

License

The source code is released under:

Apache License

If you think the Android project slider listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package de.devisnik.android.sliding.tile;
// w w  w .  ja  v  a 2s. co m
import android.os.Handler;
import android.os.SystemClock;
import de.devisnik.sliding.IPiece;
import de.devisnik.sliding.IShifterListener;
import de.devisnik.sliding.Point;
import de.devisnik.sliding.ShiftingEvent;
import de.devisnik.sliding.animation.AnimationRunner;
import de.devisnik.sliding.animation.MetaShiftable;
import de.devisnik.sliding.animation.ShiftAnimation;

public class TileShifter extends AnimationRunner {

  private static final int STEP_DURATION = 16;
  private final Handler itsHandler;
  private long itsStartTime;
  private final IShifterListener itsListener;
  private final MetaShiftable itsShiftable;
  private final TileStore itsTileStore;

  public static TileShifter create(final TileStore tileStore, final Handler handler, final int durationInMillis,
      final IShifterListener listener) {
    int steps = durationInMillis / STEP_DURATION;
    MetaShiftable metaShiftable = new MetaShiftable(steps);
    return new TileShifter(tileStore, metaShiftable, handler, steps, listener);
  }

  private TileShifter(final TileStore tileStore, final MetaShiftable shiftable, final Handler handler,
      final int steps, final IShifterListener listener) {
    super(new ShiftAnimation(shiftable, new Point(0, 0), steps));
    itsTileStore = tileStore;
    itsShiftable = shiftable;
    itsHandler = handler;
    itsListener = listener;
  }

  @Override
  protected void onStartShifting() {
    itsStartTime = SystemClock.uptimeMillis();
  }

  @Override
  protected void onDoneShifting() {
    if (itsListener != null)
      itsListener.doneShifting();
  }

  @Override
  protected void schedule(final Runnable runnable) {
    itsHandler.postAtTime(runnable, itsStartTime + itsAnimation.currentStep() * STEP_DURATION);
  }

  public TileShifter animate(final IPiece left, final IPiece right) {
    Point diff = Point.diff(left.getPosition(), right.getPosition());
    animate(left, diff);
    animate(right, Point.times(diff, -1));
    return this;
  }

  private void animate(final IPiece piece, final Point diff) {
    itsShiftable.addShifterFor(itsTileStore.get(piece), diff);
  }

  private void animate(final ShiftingEvent event) {
    itsShiftable.addShifterFor(itsTileStore.get(event.getPiece()),
        Point.diff(event.getNewPosition(), event.getOldPosition()));
  }

  public TileShifter animate(final ShiftingEvent[] events) {
    for (ShiftingEvent event : events) {
      animate(event);
    }
    return this;
  }
}

Java Source Code List