java - 如何在 ListView 中创建按钮，如果我单击它必须打开一个 Activity ？

Question

我还有一个带有图像和链接功能的 ListView ，现在我需要的是我想在 ListView 中的每个项目中创建一个按钮，如果我单击按钮，它必须进入该 Activity 页面中的另一个 Activity 它必须分别单击按钮打开一个 xml 文件，我将预先在 ListView java 文件中硬编码 xml 文件的详细信息，如何做到这一点。

public class SouthIndianvegrecipes  extends Activity {

 @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main1);

        ArrayList<Recipedetails1> image_details = GetSearchResults();

        final ListView lv1 = (ListView) findViewById(R.id.listV1_main);
        lv1.setAdapter(new ItemListBaseAdapter1(this, image_details));

        lv1.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> a, View v, int position, long id) { 
                Object o = lv1.getItemAtPosition(position);
                Recipedetails1 obj_itemDetails = (Recipedetails1)o;
                Toast.makeText(SouthIndianvegrecipes.this, "You have chosen : " + " " + obj_itemDetails.getName1(), Toast.LENGTH_LONG).show();


            } 
        });
    }

    private ArrayList<Recipedetails1> GetSearchResults(){
        ArrayList<Recipedetails1> results = new ArrayList<Recipedetails1>();

        Recipedetails1 item_details = new Recipedetails1();
        item_details.setName1("Vegterian");
        item_details.setItemDescription1("Recipes made by raw materials");
        item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
        item_details.setImageNumber1(1);
        results.add(item_details);

        item_details = new Recipedetails1();
        item_details.setName1("Non-Vegterian");
        item_details.setItemDescription1("Flesh of sweet animals");
        item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
        item_details.setImageNumber1(2);
        results.add(item_details);

        item_details = new Recipedetails1();
        item_details.setName1("Pickels");
        item_details.setItemDescription1("Touchable dish  by Homemade");
        item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
        item_details.setImageNumber1(3);
        results.add(item_details);

        item_details = new Recipedetails1();
        item_details.setName1("Soups");
        item_details.setItemDescription1("Startup for our food");
        item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
        item_details.setImageNumber1(4);
        results.add(item_details);




        return results;
    }

}

Answer 1

您只需在 ItemListBaseAdapter1 的 getView() 方法中为按钮设置 OnClickListener 即可，如下所示。

    class ItemListBaseAdapter1 extends BaseAdapter
    {

    private Activity mActivity;
    public ItemListBaseAdapter1(Activity activity, ...)
    {
        mActivity = activity;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent)
    {
        // TODO: get view here
        final Recipedetails1 item = (Recipedetails1) getItem(position);
        theButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v)
            {
                Intent intent = new Intent(mActivity, [your activity class]);
                intent.putExtra("The Link Key", item.getUrlWiki());
                mActivity.startActivity(intent);
            }
        });
        return view;
    }

}

在目标 Activity 上，您可以通过以下方式获得链接:

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    String link = getIntent.getString("The Link Key", null);
}