如何從Android的列表視圖中刪除行項目？

Question

我創建了一個列表視圖demo.list已成功創建，圖像也被正確添加到右側。現在我想要當我點擊列表視圖中右側的交叉圖像時，那麼該行將被刪除。

public class MainActivity extends Activity { 

      EditText editText; 
      Button Button,Button1; 
      ListView listView; 
      ArrayList<String> listItems; 
      BaseAdapter adapter; 

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


       editText = (EditText) findViewById(R.id.editText); 
       // int pos = editText.getText().length(); 
       //editText.setSelection(pos); 
       Button = (Button) findViewById(R.id.Button); 
       listView = (ListView) findViewById(R.id.listview); 
       //listView.setSelection(listView.getAdapter().getCount()-1); 


       listItems = new ArrayList<String>(); 
       //listItems.add("First item"); 

       //code to only set the simple text in the listview 
       //adapter = new ArrayAdapter<String>(this, R.layout., listItems); 


       //Here is the creation of new anonymous class,because we can not create subclass inside any method so we create anonymous class inside the on create method 
       adapter =new BaseAdapter() 
       { 

        @Override 
        public View getView(int arg0, View arg1, ViewGroup arg2) 
        { 
         // arg1 is the particular row position in list view weather the arg0 is the whole list view 
         // layout inflater for setting the text or an image on row in list view 
         LayoutInflater inflater = getLayoutInflater(); 
         arg1 = inflater.inflate(R.layout.custom, null); 
         TextView textview = (TextView)arg1. findViewById(R.id.textView1); 
         textview.setText(listItems.get(arg0)); 
         return arg1; 
        } 

        @Override 
        public long getItemId(int arg0) { 
         // TODO Auto-generated method stub 
         return 0; 
        } 

        @Override 
        public Object getItem(int arg0) { 
         // TODO Auto-generated method stub 
         return null; 
        } 

        @Override 
        public int getCount() { 
         // TODO Auto-generated method stub 
         return listItems.size(); 
        } 
       }; 

       listView.setAdapter(adapter); 


       Button.setOnClickListener(new View.OnClickListener() { 

        public void onClick(View v) { 
         listItems.add(editText.getText().toString()); 
         adapter.notifyDataSetChanged(); 

         // code to display the previous added text in front through edit text in 
         listView.setSelection(listView.getAdapter().getCount()-1); 
         //code to clear edit text after enter the text in list view 
         editText.getText().clear(); 
          } 
         }); 

       listView.setOnItemClickListener(new OnItemClickListener() { 
        @Override 
        public void onItemClick(AdapterView<?> a, View v, int position, 
          long id) { 
         Toast.makeText(MainActivity.this, "Item has been added into your list", Toast.LENGTH_LONG) 
           .show(); 
        } 
       }); 


      } 
     } 

Answer 1

添加刪除按鈕，您的listItem，或添加onClickListner到圖像

@Override 
public View getView(int position, View convertView, ViewGroup parent) 
{ 
    View row = null; 
    LayoutInflater inflater = getLayoutInflater(); 
    row = inflater.inflate(R.layout.one_result_details_row, parent, false); 
    ImageView image= (ImageView) row.findViewById(R.id.your_image); 
    image.setTag(position); 

    image.setOnClickListener(
     new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       Integer index = (Integer) view.getTag(); 
       listItems.remove(index.intValue()); 
       notifyDataSetChanged(); 
      } 
     } 
    ); 

Answer 2

listItems.remove(position); 

這裏的位置是你的列表行標識

notifyDataSetChanged(); 

Answer 3

close.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      values.remove(position); 
      SaleProductListAdapter.this.notifyDataSetChanged(); 
     } 
    });