Android Click Listeners for list，每行有多个按钮

Question

我正在使用ArrayAdapter在列表中显示我的朋友。然而，每一行都有两个按钮，它们将通过POST请求更新朋友的状态。

我在适配器中定义了两个按钮的单击侦听器，以及处理更新请求的runnable。举个例子：

mToggleAlert.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                mToggleAlert = (ToggleButton)finalRowView.findViewById(R.id.toggleAlert);
                mToggleShow = (ToggleButton)finalRowView.findViewById(R.id.toggleShow);
                updateStatus(finalRowView.getId(), mToggleAlert.isChecked(), mToggleShow.isChecked());
            }
        });



    /**
     * Send the updated status to the server
     */
    private void updateStatus(int id, boolean alert, boolean show) {

        final int finalId = id;
        final boolean finalAlert = alert;
        final boolean finalShow = show;

        String.valueOf(mToggleAlert);

        Runnable runnable = new Runnable() {
            public void run() {
                Message msg = handler.obtainMessage();
                Bundle bundle = new Bundle();

                //Post the update to the server
                DefaultHttpClient httpClient = new DefaultHttpClient();
                HttpPost httppost = new HttpPost(Constants.postFriendStatusUrl);

                try {

                    List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
                    nameValuePairs.add(new BasicNameValuePair("user_id",Common.retrieveAppUser(mContext).getId()));
                    nameValuePairs.add(new BasicNameValuePair("friend_id", String.valueOf(finalId)));
                    nameValuePairs.add(new BasicNameValuePair("alert_status", String.valueOf(finalAlert)));
                    nameValuePairs.add(new BasicNameValuePair("show_status", String.valueOf(finalShow)));

                    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

                    // Execute HTTP Post Request
                    HttpResponse response = httpClient.execute(httppost);

                    HttpEntity httpEntity = response.getEntity();
                    InputStream is = httpEntity.getContent();
                    BufferedReader reader = new BufferedReader(new InputStreamReader(
                            is, "iso-8859-1"), 8);
                    StringBuilder sb = new StringBuilder();
                    String line = null;
                    while ((line = reader.readLine()) != null) {
                        sb.append(line + "\n");
                    }
                    is.close();

                    bundle.putString("result", sb.toString());
                    msg.setData(bundle);

                } catch (ClientProtocolException e) {
                    // TODO Auto-generated catch block
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                }




                handler.sendMessage(msg);
            }
        };

        Thread mythread = new Thread(runnable);
        mythread.start();


    }

不过，我认为这不是一个很好的方法，所以我把更新服务放到了它自己的AsyncTask中。

我的问题是:我宁愿在实现ArrayAdapter的活动中为两个按钮定义单击侦听器，而不是在适配器本身中。我该怎么做呢？

Answer 1

    mToggleAlert.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            mToggleAlert = (ToggleButton)finalRowView.findViewById(R.id.toggleAlert);
            mToggleShow = (ToggleButton)finalRowView.findViewById(R.id.toggleShow);
            updateStatus(finalRowView.getId(), mToggleAlert.isChecked(), mToggleShow.isChecked());
        }
    });

只将监听程序设置为mToggleAlert而不是mToggleShow上的监听程序正常吗？

无论如何，您可以将按钮上的getter放在ArrayAdapter中

public ToogleButton getToggleAlert(){
    return mToggleAlert;
}

然后，您将能够从主活动中设置侦听器

您可能只需要将"updateStatus“设置为公共的，以便从您的活动中调用它