Auto.js/common/src/main/java/com/stardust/util/IntentExtras.java

package com.stardust.util;

import android.content.Intent;
import android.util.SparseArray;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;

/**
 * Created by Stardust on 2017/7/11.
 */

public class IntentExtras implements Serializable {

    private static int mMaxId = -1;
    private static final String EXTRA_ID = "com.stardust.util.IntentExtras.id";
    private static SparseArray<Map<String, Object>> extraStore = new SparseArray<>();


    public static IntentExtras newExtras() {
        return new IntentExtras();
    }

    public static IntentExtras fromIntent(Intent intent) {
        int id = intent.getIntExtra(EXTRA_ID, -1);
        if (id < 0) {
            throw new IllegalArgumentException("");
        }
        return new IntentExtras(id);
    }

    private Map<String, Object> mMap;
    private int mId;

    private IntentExtras() {
        mMap = new HashMap<>();
        mMaxId++;
        mId = mMaxId;
        extraStore.put(mId, mMap);
    }


    private IntentExtras(int id) {
        mMap = extraStore.get(id);
        extraStore.remove(id);
        mMaxId = id;
    }


    @SuppressWarnings("unchecked")
    public <T> T get(String key) {
        return (T) mMap.get(key);
    }

    @SuppressWarnings("unchecked")
    public <T> T getAndClear(String key) {
        T value = (T) mMap.get(key);
        recycle();
        return value;
    }

    public IntentExtras put(String key, Object value) {
        mMap.put(key, value);
        return this;
    }

    public Intent putInIntent(Intent intent) {
        intent.putExtra(EXTRA_ID, mMaxId);
        return intent;
    }

    public void recycle() {
        extraStore.remove(mId);
        mMap = null;
    }
}