具有多种类型的行布局的ListView-BaseAdapter在Android中无法正常工作

问题描述：

您好，以下是我的baseadapter班，但无法正常工作:

Hi below is my class for baseadapter, but it is not working properly:

private static class MyBaseAdapter extends BaseAdapter {

        private Context context;

        private LayoutInflater inflater;


        private MyBaseAdapter(Context context, FlipViewController controller) {
            inflater = LayoutInflater.from(context);
            this.context = context;

        }

        @Override
        public int getCount() {
            return Globals.list_album.size();
        }

        @Override
        public Object getItem(int position) {
            return position;
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View layout = convertView;
            if (convertView == null )
            {
                if (Globals.list_album.get(position).no_of_images == 1) {
                    layout = inflater.inflate(R.layout.single_image_adapter, null);
                }
                else if(Globals.list_album.get(position).no_of_images == 2) {
                    layout = inflater.inflate(R.layout.two_image_adapter, null);
                }
                else if(Globals.list_album.get(position).no_of_images == 3) {
                    layout = inflater.inflate(R.layout.three_image_adapter, null);
                }
                else if(Globals.list_album.get(position).no_of_images == 4) {
                    layout = inflater.inflate(R.layout.four_image_adapter, null);
                }
                else if(Globals.list_album.get(position).no_of_images == 5) {
                    layout = inflater.inflate(R.layout.five_image_adapter, null);
                }   
            }

            return layout;
        }

    }

我想根据Globals.list_album中的图像编号将布局加载到每个位置.但是它不能正常工作.它不适用于no_of_images = 5和2，因为我在列表中有这样的值.当前，我的no_of_images值为4,3,1,2和5.因此，它应该显示布局four_image_adapter，Three_image_adapter，one_image_adapter，two_image_adapter和Five_image_adapter.但是它显示four_image_adapter，Three_image_adapter，one_image_adapter，four_image_adapter和three_image_adapter. 所有布局都有根据图像数量显示的图像视图. 有人可以告诉我我该怎么做吗?

I want to load the layout according to the no of images in Globals.list_album to each position. But it is not working properly. It does not work for no_of_images = 5 and 2 as I have such values in list. Currently my values for no_of_images are 4,3,1,2 and 5. So it should display the layouts four_image_adapter, three_image_adapter, one_image_adapter, two_image_adapter and five_image_adapter. But it displays four_image_adapter, three_image_adapter, one_image_adapter, four_image_adapter and three_image_adapter. All layouts have imageviews according to number of images. Will anybody please tell me what I have to do?

答

由于您需要为不同的行使用不同的布局，因此请使用以下方法

Since you need different layout for different rows, use below methods

getViewTypeCount()-返回信息多少行类型.

getViewTypeCount() - returns information how many types of rows.

getItemViewType(int position)-返回信息，您应该根据位置使用哪种布局类型

getItemViewType(int position) - returns information which layout type you should use based on position

使用getItemViewType可以定义需要使用的布局.

using getItemViewType you can define the layout you need to use.

public static final int TYPE_1 = 1;
public static final int TYPE_2 = 2;

public int getItemTypeCount(){
     return 5;
}

public int getItemType(int position){
    // Your if else code and return type ( TYPE_1 to TYPE_5 )
}

public View getView(int position, View convertView, ViewGroup parent){
    // Return the right kind of view based on getItemType(position)

    int type = getItemType(position);
    if(type == TYPE_1){
        // create (or reuse) TYPE_1 view
    } else if() {
    }......

    return myView;

}

样品

http://android.amberfog.com/?p=296

http://www.survivingwithandroid.com/2014/08/android -listview-with-multiple-row.html

具有多种类型的行布局的ListView-BaseAdapter在Android中无法正常工作

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