TransitionUtils.java

package com.kickstarter.libs.utils;

import android.app.Activity;
import android.content.Context;
import android.support.annotation.NonNull;
import android.util.Pair;

import com.kickstarter.R;

public final class TransitionUtils {
  private TransitionUtils() {}

  /**
   * Explicitly set a transition after starting an activity.
   *
   * @param context The activity that started the new intent.
   * @param transition A pair of animation ids, first is the enter animation, second is the exit animation.
   */
  public static void transition(final @NonNull Context context, final @NonNull Pair<Integer, Integer> transition) {
    if (!(context instanceof Activity)) {
      return;
    }

    final Activity activity = (Activity) context;
    activity.overridePendingTransition(transition.first, transition.second);
  }

  public static @NonNull Pair<Integer, Integer> slideInFromRight() {
    return Pair.create(R.anim.slide_in_right, R.anim.fade_out_slide_out_left);
  }

  public static @NonNull Pair<Integer, Integer> slideInFromLeft() {
    return Pair.create(R.anim.fade_in_slide_in_left, R.anim.slide_out_right);
  }
}