ListView+RecyclerView缓存类的封装

1public class BaseViewHoler extends RecyclerView.ViewHolder {
2    private Context context;
3    //行布局的view
4    private View mView;
5    //用来装载id的集合 用法和map类似
6    private SparseArray<View> sparseArray;
7
8
9    public BaseViewHoler(View itemView, Context context) {
10        super(itemView);
11        mView = itemView;
12        sparseArray = new SparseArray<>();
13        this.context = context;
14    }
15
16    //初始化RecyclerView的
17    public static BaseViewHoler createRecyclerViewHolder(Context context, ViewGroup group, int layoutId) {
18        View itemView = LayoutInflater.from(context).inflate(layoutId, group, false);
19        BaseViewHoler baseViewHoler = new BaseViewHoler(itemView, context);
20        return baseViewHoler;
21    }
22
23    //初始化listView的
24    public static BaseViewHoler createListViewHolder(View view, ViewGroup group, int layoutId) {
25        BaseViewHoler baseViewHoler = null;
26        if (view == null) {
27            view = LayoutInflater.from(group.getContext()).inflate(layoutId, group, false);
28            baseViewHoler = new BaseViewHoler(view, group.getContext());
29            view.setTag(baseViewHoler);
30        } else {
31            baseViewHoler = (BaseViewHoler) view.getTag();
32        }
33        return baseViewHoler;
34    }
35
36    //根据id来获得组件
37    public <T extends View> T getView(int id) {
38        //创建一个view 根据id从集合里取出
39        View view = sparseArray.get(id);
40        //如果没有取到  那么就通过findViewById的方式找到这个组件,然后将组件存放在集合里
41        if (view == null) {
42            view = mView.findViewById(id);
43            sparseArray.put(id, view);
44        }
45        //最后返回的这个就是我们想要的组件了
46        return (T) view;
47    }
48
49    //自己随意的定义方法
50    //最基本的设置文字的方法
51    public BaseViewHoler setText(int id, String str) {
52        TextView textView = getView(id);
53        if (str != null) {
54            textView.setText(str);
55        }
56        return this;
57    }
58
59
60    //第三方轮播图banner
61    public BaseViewHoler setBanner(int id, String url) {
62        final Banner banner = getView(id);
63        if (url != null) {
64            NetTool.getInstance().startRequest(url, BannerBean.class, new CallBack<BannerBean>() {
65                @Override
66                public void onSuccess(BannerBean response) {
67                    List<String> bannerBean = new ArrayList<String>();
68                    for (int i = 0; i < response.getData().getBanners().size(); i++) {
69                        bannerBean.add(response.getData().getBanners().get(i).getImage_url());
70                    }
71                    banner.setImageLoader(new GlideImageLoader());
72                    banner.setImages(bannerBean);
73                    banner.isAutoPlay(true);//自动播放
74                    banner.setDelayTime(3000);//设置延时时间
75                    banner.setIndicatorGravity(BannerConfig.CENTER);//设置小圆点的位置
76                    banner.start();
77                }
78
79                @Override
80                public void onError(Throwable e) {
81
82                }
83            });
84
85
86        }
87        return null;
88    }
89
90    class GlideImageLoader extends ImageLoader {
91
92        @Override
93        public void displayImage(Context context, Object path, ImageView imageView) {
94            Glide.with(context).load(path).into(imageView);
95        }
96    }
97
98
99    //设置网络图片
100    public BaseViewHoler setImage(int id, String url) {
101        ImageView imageView = getView(id);
102        if (url != null) {
103            Glide.with(context).load(url).into(imageView);
104        }
105        return this;
106    }
107
108    //设置圆形图
109    public BaseViewHoler setImage(int id, String url, Context context) {
110        ImageView imageView = getView(id);
111        if (url != null) {
112            Glide.with(context).load(url).bitmapTransform(new CropCircleTransformation(context)).into(imageView);
113        }
114        return this;
115    }
116
117    //设置本地图片
118    public BaseViewHoler setImage(int id, int resId) {
119        ImageView imageView = getView(id);
120        if (resId != 0) {
121            imageView.setImageResource(resId);
122        }
123        return this;
124    }
125
126
127}