java - android中像数组一样存储的动态类值？

Question

嗨，我想使用类函数中的 for 循环动态传递值来保存数据，那么我如何在 java 中执行此操作

当我实现此代码时，只放置一张图像，我想将值传递给 for 循环

这里我把我的代码检查一下

CustomData.java

/** This is just a simple class for holding data that is used to render our custom view */
public class CustomData 
{ 
    private String mText;

    public CustomData(String text) {

        mText = text;
    }
    public String getText() 
    {
        return mText;
    }

}

Activityclass.java

 public class ListMobileActivity extends Activity { 

Button btnradio;
ListView lv;
private ProgressDialog mProgress;

ArrayList<HashMap<String, String>> menulist = new    ArrayList<HashMap<String,String>>();

ArrayList<String> test= new ArrayList<String>();

List<String> custom;
int size=1;
 public CustomData[] mCustomData= new CustomData[size];


 private HorizontalListView myhorizontalview;


@Override
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.listmobileactivity);

    myhorizontalview = (HorizontalListView) findViewById(R.id.myhorizontalview);

    new MenuAsynctask().execute("");

    myhorizontalview.setOnItemClickListener(new OnItemClickListener() 
    {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) 
        {




        }


    });

}



public class MenuAsynctask extends AsyncTask<String, ArrayList<HashMap<String,String>>,ArrayList<HashMap<String,String>>>
{

    @Override
    protected ArrayList<HashMap<String, String>> doInBackground(String... params) 
    {

        try 
        {
                JsonParser jparser = new JsonParser();

                String url="http://www.weboffice.co.at/webservices/services.php?method=content";


                String data=jparser.getdata(url);
                //Log.e("data","--->"+data);

                JSONObject jobject = new JSONObject(data);

                JSONArray jcontent=jobject.getJSONArray("CONTENT");
                size=jcontent.length();
                for(int i=0;i<jcontent.length();i++)
                {

                    String title=jcontent.getJSONObject(i).get("title").toString();
                    String come=jcontent.getJSONObject(i).get("short").toString();
                    String image=jcontent.getJSONObject(i).get("image").toString();

                    mCustomData[i] = new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"); 
                }


        }
        catch (Exception e) 
        {
            e.printStackTrace();
        }

        return menulist;

    }

    @Override
    protected void onPostExecute(ArrayList<HashMap<String, String>> result) 
    {

        Log.e("data","--->"+mCustomData.toString());

        CustomArrayAdapter adapter = new CustomArrayAdapter(ListMobileActivity.this, mCustomData);
        myhorizontalview.setAdapter(adapter);

    }


}

}

i want to create array like this how to achieve this

public CustomData[] mCustomData = new CustomData[] {
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
                new CustomData("http://www.allindiaflorist.com/imgs/arrangemen4.jpg"),
        };

Answer 1

使用

CustomData mCustomData= new CustomData(image);

初始化，您应该将其存储在 ArrayList 中以便稍后访问数据

更新

CustomData[] dataList = new CustomData[SIZE]; 

for(int i = 0; i < SIZE; i++)
{
    dataList[i] = new CustomData(image); 
}

如果您没有固定大小，则使用

ArrayList<CustomData> dataList = new ArrayList<CustomData>();
dataList.add(new CustomData(image));

and to retrieve use

dataList.get(position);

尝试

 public CustomData[] mCustomData; // Remove initialization

在MenuAsynctask doInBackground

mCustomData = new CustomData[jcontent.length()];

它会起作用