从适配器访问片段

我的想法是我有一个列表视图，其中每个项目都是一个产品，当我点击该项目时，我需要从列表视图的适配器内的点击转到另一个片段。

我的适配器是：

package info.android.adapter; import info.android.ProductFragment; import info.android.R; import java.util.ArrayList; import android.app.Activity; import android.app.Fragment; import android.app.FragmentTransaction; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; public class ProductOffersListAdapter extends BaseAdapter { private Context context; private ArrayList navProOffers; public ProductOffersListAdapter(Context context, ArrayList navProOffers) { this.context = context; this.navProOffers = navProOffers; } @Override public int getCount() { return navProOffers.size(); } @Override public info.android.model.ProductsOffers getItem(int position) { return navProOffers.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE); convertView = mInflater.inflate(R.layout.fragment_row, null); } convertView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // I NEED CLALL HERE FRAGMENT_PRODUCT.XML } }); ImageView img = (ImageView) convertView.findViewById(R.id.image); TextView txtCodigo = (TextView) convertView.findViewById(R.id.txtCodigo); TextView txtCiudad = (TextView) convertView.findViewById(R.id.txtCiudad); TextView txtVF = (TextView) convertView.findViewById(R.id.txtVF); String sVF = Double.toString(getItem(position).ValorFinal) + "€"; txtVF.setText(sVF); txtCiudad.setText(getItem(position).ciudad); txtCodigo.setText(getItem(position).codigo); convertView.setTag(getItem(position).codigo); img.setImageBitmap(getItem(position).Imagen); return convertView; } } 

你必须假设所有代码都正常工作。

如何进入适配器内的产品片段？

Answer 1

您需要在构造函数中传递它。 例如：

 public class ProductOffersListAdapter extends BaseAdapter { private Context context; private ArrayList navProOffers; Fragment myFragment; public ProductOffersListAdapter(Context context, ArrayList navProOffers, Fragment myFragment) { this.context = context; this.myFragment = myFragment; this.navProOffers = navProOffers; } ... 

Answer 2

我做的是解决这个问题：

 Intent i = new Intent(v.getContext(), MainActivity.class); i.putExtra("fragment_value", "2"); v.getContext().startActivity(i); 

在主类我得到参数作为值和一个开关我设置片段在主要我感兴趣。