linearLayout = findViewById(R.id.linearLayout)
        search = findViewById(R.id.search)

        creat("")
        search.doOnTextChanged { text,_, _, _ ->
            creat(text.toString())
        }


    
    fun creat(words: String){
        linearLayout.removeAllViews()
        getLoadString()
        for(product in products) {
            if (product.name.startsWith(words, true)){
                val layout = layoutInflater.inflate(R.layout.product,null)
                layout.findViewById<TextView>(R.id.name).text = product.name
                layout.findViewById<TextView>(R.id.piece).text = product.Stringto()
                layout.findViewById<ImageView>(R.id.imageView).setImageResource(product.image)

                layout.setOnClickListener {
                    val intent = Intent(this, detail::class.java)
                    intent.putExtra("name", product.name)
                    intent.putExtra("piece", product.Stringto())
                    intent.putExtra("image", product.image)
                    intent.putExtra("isLike", product.islike)
                    if(product is drink){
                        intent.putExtra("ml", product.ml.toString())
                    }

                    startActivity(intent)
                }

                layout.findViewById<ImageView>(R.id.islikeButton).setOnClickListener {
                    if(product.islike){
                        product.islike = false
                        layout.findViewById<ImageView>(R.id.islikeButton).setImageResource(R.drawable.unlike)
                        likeList.remove(product.name)
                        saveLoadString()
                    }
                    else{
                        product.like()
                        likeList.add(product.name)
                        saveLoadString()
                        layout.findViewByI<<ImageView>(R.id.islikeButton).setImageResource(R.drawable.like)
                    }
                }

                layout.setOnLongClickListener {
                    linearLayout.removeView(layout)
                    true
                }

                if(product is drink){
                    layout.findViewById<TextView>(R.id.ml).text = product.ml.toString() + "ml"
                }


                if(product.islike){
                    layout.findViewById<ImageView>(R.id.islikeButton).setImageResource(R.drawable.like)
                }
                else{
                    layout.findViewById<ImageView>(R.id.islikeButton).setImageResource(R.drawable.unlike)
                }
                linearLayout.addView(layout)
                //要把editor的likeList 與likeList同步，才不會讓likeList覆蓋之前的數據(入頁面時會自動likeList = 没有野)
            }
        }
    }

    fun saveLoadString(){
        val editor = getSharedPreferences("date", MODE_PRIVATE).edit()
        editor.putString("likeList", likeList.joinToString())
        editor.apply()
    }

    fun getLoadString(){

        val prefs = getSharedPreferences("date", MODE_PRIVATE)
        val likeProduct = prefs.getString("likeList", "")
        val  productLike= ArrayList(likeProduct?.split(",")?: emptyList())
        for(pro in productLike){
            likeList.add(pro.trim()) //joinToString時有空格
        }
        for(product in products){
            if(productLike.toString().contains(product.name)){
                product.like()
            }
        }
    }


    ===================================================================================================================
    val back: Button = findViewById(R.id.back)
        back.setOnClickListener {
            val intent = Intent(this, MainActivity::class.java)
            startActivity(intent)
        }
        getLoat()
        likeImage.setOnClickListener {
            if(likeed){
                likeed = false
                savelike()
                likeImage.setImageResource(R.drawable.unlike)
            }
            else{
                likeed  = true
                savelike()
                likeImage.setImageResource(R.drawable.like)
            }
        }

    
    fun savelike(){
        val editor = getSharedPreferences("date", MODE_PRIVATE).edit()
        val prefs = getSharedPreferences("date", MODE_PRIVATE)
        val prefsList = prefs.getString("likeList", "")?.split(",")?: emptyList()
        val listLike = arrayListOf<String>()
        for(product in prefsList){
            listLike.add(product.trim())
        }
        if(likeed){
            listLike.add(productName)
        }
        else{
            listLike.remove(productName)
        }
        editor.putString("likeList",listLike.joinToString() )
        editor.apply()
    }
    fun getLoat(){
        val prefs = getSharedPreferences("date", MODE_PRIVATE)
        val productlike = prefs.getString("likeList", "")
        if(productlike?.contains(productName) == true){
            likeed = true
            likeImage.setImageResource(R.drawable.like)
        }
        else{
            likeImage.setImageResource(R.drawable.unlike)
        }
    }