[Day 17]Android-在RecyclerView上使用ObjectAnimator(四)

第 11 屆 iThome 鐵人賽

DAY 17

自我挑戰組

Android的學習歷程系列第 17 篇

11th鐵人賽

rfogweg351s

團隊NUTC_IMAC_GREEN

2019-10-03 14:46:19

1518 瀏覽

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今天來開始動畫的部分，首先到ViewHolder的地方

ublic class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        ImageView mImageView;
        ImageView cardView;
        ViewHolder(View itemView) {
            super(itemView);
            mImageView = itemView.findViewById(R.id.photo_item);
            cardView = itemView.findViewById(R.id.photo_stroke);
            itemView.setOnClickListener(this);
        }
        //翻牌動畫
        ObjectAnimator animator = ObjectAnimator.ofFloat(itemView, "rotationY", 0, 180);
        ObjectAnimator animatorBack = ObjectAnimator.ofFloat(itemView, "rotationY", 180, 360);

        @Override
        public void onClick(View view) {
            int position = getAdapterPosition();
        }
    }

今天要來做翻牌動作，在onClick的地方取得位置後依照正負來判斷要顯示卡背或卡面。

public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        ImageView mImageView;
        ImageView cardView;

        ViewHolder(View itemView) {
            super(itemView);
            mImageView = itemView.findViewById(R.id.photo_item);
            cardView = itemView.findViewById(R.id.photo_stroke);
            itemView.setOnClickListener(this);
        }

        //翻牌動畫
        ObjectAnimator animator = ObjectAnimator.ofFloat(itemView, "rotationY", 0, 180);
        ObjectAnimator animatorBack = ObjectAnimator.ofFloat(itemView, "rotationY", 180, 360);

        @Override
        public void onClick(View view) {
            int position = getAdapterPosition();
            mSelectRegister[position] *= -1;
            if (mSelectRegister[position] == -1) {
                mImageView.setVisibility(View.VISIBLE);
                cardView.setVisibility(View.INVISIBLE);
            } else {
                mImageView.setVisibility(View.INVISIBLE);
                cardView.setVisibility(View.VISIBLE);
            }
        }
    }

接下來放上動畫，會發現牌還沒翻完卡背就顯示出來了。

@Override
        public void onClick(View view) {
            int position = getAdapterPosition();
            mSelectRegister[position] *= -1;
            if (mSelectRegister[position] == -1) {
                animator.setDuration(750);
                animator.start();
                 mImageView.setVisibility(View.VISIBLE);
                 cardView.setVisibility(View.INVISIBLE);
            } else {
                animatorBack.setDuration(750);
                animatorBack.start();
                mImageView.setVisibility(View.INVISIBLE);
                cardView.setVisibility(View.VISIBLE);
            }
        }

這邊可以加上延遲來調整顯示時間，現在看起來正常多了。

@Override
        public void onClick(View view) {
            int position = getAdapterPosition();
            mSelectRegister[position] *= -1;
            if (mSelectRegister[position] == -1) {
                animator.setDuration(750);
                animator.start();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mImageView.setVisibility(View.VISIBLE);
                        cardView.setVisibility(View.INVISIBLE);
                    }
                }, 375);
            } else {
                animatorBack.setDuration(750);
                animatorBack.start();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mImageView.setVisibility(View.INVISIBLE);
                        cardView.setVisibility(View.VISIBLE);
                    }
                }, 375);
            }
        }

如果快速選取會發現動畫跟顯示會錯亂，所以還需要一個跟mSelectRegister一樣的陣列來紀錄哪一個位置的牌正在工作，如果正在工作就不執行，完成後把它整理到一個方法中。

private void selectCard(final int pos, ObjectAnimator animator, ObjectAnimator animatorBack, final ImageView mImageView, final ImageView cardView) {
        if (mSelectStatus[pos] == 1) {
            mSelectRegister[pos] *= -1;
            if (mSelectRegister[pos] == -1) {
                animator.setDuration(750);
                animator.start();
                mSelectStatus[pos] *= -1;
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mImageView.setVisibility(View.VISIBLE);
                        cardView.setVisibility(View.INVISIBLE);
                    }
                }, 375);
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mSelectStatus[pos] *= -1;
                    }
                }, 750);

            } else {
                animatorBack.setDuration(750);
                animatorBack.start();
                mSelectStatus[pos] *= -1;
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mImageView.setVisibility(View.INVISIBLE);
                        cardView.setVisibility(View.VISIBLE);
                    }
                }, 375);
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mSelectStatus[pos] *= -1;
                    }
                }, 750);
            }
        }
    }

在viewHolder中使用

public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        ImageView mImageView;
        ImageView cardView;

        ViewHolder(View itemView) {
            super(itemView);
            mImageView = itemView.findViewById(R.id.photo_item);
            cardView = itemView.findViewById(R.id.photo_stroke);
            itemView.setOnClickListener(this);
        }

        //翻牌動畫
        ObjectAnimator animator = ObjectAnimator.ofFloat(itemView, "rotationY", 0, 180);
        ObjectAnimator animatorBack = ObjectAnimator.ofFloat(itemView, "rotationY", 180, 360);

        @Override
        public void onClick(View view) {
            int position = getAdapterPosition();
            selectCard(position,animator,animatorBack,mImageView,cardView);
        }
    }

MyRecyclerViewAdapter

public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.ViewHolder> {

    private String[] mData = new String[0];
    private LayoutInflater mInflater;
    private ItemClickListener mClickListener;
    private Integer[] imageResource = {R.drawable.red_card, R.drawable.orange_card, R.drawable.yellow_card,
            R.drawable.green_card, R.drawable.blue_card, R.drawable.indigo_card, R.drawable.purple_card};

    private int checkEvent;
    private int score;
    private int selectCard;
    private ArrayList<ImageView> ivNumberList;
    private ArrayList<Integer> selectList;
    private ArrayList<View> itemViewList;
    private Handler handler;
    private ArrayList<String> mImgRandomSelect;

    //選取狀態
    private int[] mSelectStatus;
    private int[] mSelectWork;

    MyRecyclerViewAdapter(Context context, String[] data, int[] selectStatus,int[] selectWork) {
        handler = new Handler();
        selectList = new ArrayList<>();
        ivNumberList = new ArrayList<>();
        itemViewList = new ArrayList<>();
        mImgRandomSelect = new ArrayList<>();
        this.mInflater = LayoutInflater.from(context);
        this.mData = data;
        this.mSelectStatus = selectStatus;
        this.mSelectWork = selectWork;
    }


    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = mInflater.inflate(R.layout.card_item, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(final ViewHolder holder, int position) {
        holder.mImageView.setImageResource(imageResource[Integer.parseInt(mData[position]) - 1]);

        //開頭動畫
        checkEvent = 1;
        View seeView = holder.itemView;
        ObjectAnimator animatorBack = ObjectAnimator.ofFloat(seeView, "rotationY", 180, 360);
        holder.mImageView.setVisibility(View.VISIBLE);
        animatorBack.setDuration(1000);
        animatorBack.start();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                holder.mImageView.setVisibility(View.INVISIBLE);
                checkEvent = 0;
            }
        }, 500);
    }

    @Override
    public int getItemCount() {
        return mData.length;
    }

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        ImageView mImageView;
        ImageView cardView;

        ViewHolder(View itemView) {
            super(itemView);
            mImageView = itemView.findViewById(R.id.photo_item);
            cardView = itemView.findViewById(R.id.photo_stroke);
            itemView.setOnClickListener(this);
        }

        //翻牌動畫
        ObjectAnimator animator = ObjectAnimator.ofFloat(itemView, "rotationY", 0, 180);
        ObjectAnimator animatorBack = ObjectAnimator.ofFloat(itemView, "rotationY", 180, 360);

        @Override
        public void onClick(View view) {
            int position = getAdapterPosition();
            selectCard(position,animator,animatorBack,mImageView,cardView);
        }
    }

    private void selectCard(final int pos, ObjectAnimator animator, ObjectAnimator animatorBack, final ImageView mImageView, final ImageView cardView) {
        if (mSelectWork[pos] == 1) {
            mSelectStatus[pos] *= -1;
            if (mSelectStatus[pos] == -1) {
                animator.setDuration(750);
                animator.start();
                mSelectWork[pos] *= -1;
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mImageView.setVisibility(View.VISIBLE);
                        cardView.setVisibility(View.INVISIBLE);
                    }
                }, 375);
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mSelectWork[pos] *= -1;
                    }
                }, 750);

            } else {
                animatorBack.setDuration(750);
                animatorBack.start();
                mSelectWork[pos] *= -1;
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mImageView.setVisibility(View.INVISIBLE);
                        cardView.setVisibility(View.VISIBLE);
                    }
                }, 375);
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mSelectWork[pos] *= -1;
                    }
                }, 750);
            }
        }
    }

    void setClickListener(ItemClickListener itemClickListener) {
        this.mClickListener = itemClickListener;
    }

    public interface ItemClickListener {
        void onItemClick(View view, int position, int score);
    }
}

現在已經可以快速點擊各個牌並能夠正常撥放動畫了，明天會進入到判斷的部分。