ShotStateStore.java

package com.marshalchen.common.uimodule.showcaseview;

import android.content.Context;
import android.content.SharedPreferences;

class ShotStateStore {

    private static final String PREFS_SHOWCASE_INTERNAL = "showcase_internal";
    private static final int INVALID_SHOT_ID = -1;

    long shotId = INVALID_SHOT_ID;

    private final Context context;

    public ShotStateStore(Context context) {
        this.context = context;
    }

    boolean hasShot() {
        return isSingleShot() && context
                .getSharedPreferences(PREFS_SHOWCASE_INTERNAL, Context.MODE_PRIVATE)
                .getBoolean("hasShot" + shotId, false);
    }

    boolean isSingleShot() {
        return shotId != INVALID_SHOT_ID;
    }

    void storeShot() {
        if (isSingleShot()) {
            SharedPreferences internal = context.getSharedPreferences(PREFS_SHOWCASE_INTERNAL, Context.MODE_PRIVATE);
            internal.edit().putBoolean("hasShot" + shotId, true).apply();
        }
    }

    void setSingleShot(long shotId) {
        this.shotId = shotId;
    }

}