TextView.getText().toString() 崩溃

Question

在我的应用程序中有列表视图，在获取列表后，当单击特定项目时它会崩溃。请帮助我是 android 的新人。导致错误的代码我用特殊字符标记了它 "hash"

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class ListViewClass extends ListActivity {
TextView clickedView;

@Override
public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    // storing string resources into Array
    String[] adobe_products =     getResources().getStringArray(R.array.adobe_products);

    // Binding resources Array to ListAdapter
    this.setListAdapter(new ArrayAdapter<String>(this,   R.layout.list_item, R.id.label, adobe_products));


    ListView lv = getListView();
 // listening to single list item on click
    lv.setOnItemClickListener(new OnItemClickListener() {



      public void onItemClick(AdapterView<?> parent, View args1, int position, long id) {
          // selected item 
         ################################################ 
         String product = ((TextView) args1).getText().toString();
         ################################################ 


          // Launching new Activity on selecting single List Item
          Intent i = new Intent(getApplicationContext(), SingleListItem.class);
          // sending data to new activity
          i.putExtra("product", product);
          startActivity(i); 




      }
    });       
}
}

Answer 1

将该行替换为

String product = ((TextView) args1.findViewById(R.id.label)).getText().toString();

Answer 2

其实你有数组元素，你为什么要尝试从textview中获取值。您可以使用 adobe_products[position].

获取选中的项目文本

lv.setOnItemClickListener(new OnItemClickListener() {

      public void onItemClick(AdapterView<?> parent, View args1, int position, long id) {
          // selected item 
         ################################################ 
         String product = adobe_products[position] ;//Editted area
         ################################################ 

          // Launching new Activity on selecting single List Item
          Intent i = new Intent(getApplicationContext(), SingleListItem.class);
          // sending data to new activity
          i.putExtra("product", product);
          startActivity(i); 
      }
    });

TextView.getText().toString() 崩溃

TextView.getText().toString() crashes

android

textview

android-arrayadapter