如何获取切换按钮列表视图中点击的位置？ [英] How to get the position of toggle button clicked within listview?

问题描述

我有一个包含报警次ListView和一个切换按钮来关闭/开启了报警。当我点击的具体列表视图切换按钮，我想设置/取消特定的报警。但是，我怎么得到我点击基于视图列表视图的位置？

I have a listview that contains alarm times and a toggle button to turn off/on that alarm. When I click the toggle buttons for the specific listview, I would like to set/cancel that specific alarm. But how do I get the position of the listview I clicked on based on the view?

当我点击我的切换按钮开启/关闭它击中这个code：

When I click my toggle button on/off it hits this code:

public void enableAlarm(View view) {

    // set/cancel alarm manager pending intent
}

我保存在数据库中每一个特定的ListView项一些信息，但我需要的列表视图位置。我怎样才能从视图中的位置？

I have some information stored for each particular listview item in a Database, but I need the listview position. How can I get the position from the view?

推荐答案

我建议你创建一个自定义的 ArrayAdapter 类和重写 getView（） 方法。从这个方法，您可以访问从中切换设置列表项的位置，并能创造出独特的 OnCheckedChangeListener 每个切换按钮，通过它的位置列表

I suggest you create a custom ArrayAdapter class and override the getView() method. From that method, you have access to the position of the list item from which the toggle was set, and can create a unique OnCheckedChangeListener for each toggle button, passing it the position of the list.

我假设你已经拥有的任何假设每个ListView项将举行一个XML布局文件，因为你提到的报警和切换按钮。

I'm assuming you already have an XML layout file for whatever is supposed to be held in each ListView item, since you mention an alarm and toggle buttons.

更新：
为了得到报警时间，并将其发送到 enableAlarm（）方法，你需要将其保存为最后在 getView（）这样你就可以在 onCheckedChangeListener 访问它。再看code我得到的切换按钮后添加。

Update: In order to get the alarm time and send it to the enableAlarm() method, you need to save it as a final variable within getView() so you can access it within the onCheckedChangeListener. Look at the code I added after getting the ToggleButton.

@override
public View getView(int position, View convertView, ViewGroup parent) {
    View v = convertView;
    if (v == null) {
        LayoutInflater inflater = getContext().getLayoutInflater();
        v = inflater.inflate(R.layout.alarm_item, parent, false);
    }
    ToggleButton toggle = (ToggleButton) v.findViewById(R.id.alarmToggle);

    //get the alarm time
    TextView timeView = (TextView) v.findViewById(R.id.theAlarmTextView);
    final String alarmTime = timeView.getText();

    toggle.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            if (isChecked)
                //modify your enableAlarm method to take in the time as a String
                enableAlarm(buttonView, alarmTime);
            }
        }
    });
    return v;
}

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