我怎样才能刷新更改后的名单？ [英] How can I refresh the list after changes?

问题描述

我用我的ArrayAdapter扩大getView方法。
我改变复选框，但ListView控件不刷新

我的源

  @覆盖
    公共查看getView（INT位置，查看convertView，父母的ViewGroup）{        //星球显示
        UrlItem urlItem =（UrlItem）this.getItem（位置）;
        ViewHolder viewHolder = NULL;        如果（convertView == NULL）{            convertView = inflater.inflate（R.layout.database_table_item，NULL）;
            viewHolder =新ViewHolder（）;
            viewHolder.checkbox =（复选框）convertView
                    .findViewById（R.id.checkBox1）;            viewHolder.checkbox
                    .setOnCheckedChangeListener（新CompoundButton.OnCheckedChangeListener（）{                        公共无效onCheckedChanged（CompoundButton buttonView，
                                布尔器isChecked）{                            INT为getPosition =（整数）buttonView.getTag（）;
                            DatabaseTable.setPosition（为getPosition）;
                            的for（int i = 0; I＆LT; UrlItems.size（）;我++）{                                UrlItems.get（ⅰ）.setUse（假）;                            }                            UrlItems.get（为getPosition）.setUse（器isChecked）;
                        }
                    }）;
 

我怎样才能刷新更改后的名单??

在清单中设置您的信息

 ＆LT;活动
            机器人：DatabaseTableNAME =
            机器人：标签=database_table机器人：windowSoftInputMode =adjustPan＆GT;
 

查看链接升级使用按钮全选我有相同的想法，但没有键全选

http://pastebin.com/PgNeDnXq

解决方案

  adapter.notifyDataSetChanged（）; //通知您的数据已更新适配器
 

注意：如果您得到任何错误，与上面的线，你可以试试下面的code（其中mListView是我的ListView对象的名称）

 （（BaseAdapter）mListView.getAdapter（））notifyDataSetChanged（）。
 

另一种方式是，使得它重绘形式更新后的数据再次设置为无效列表

  mListView =（ListView控件）findViewById（R.id.MyListView）;
mListView.invalidate（）;
 

I use my ArrayAdapter expanded getView method. I change CheckBox but the ListView does not refresh

my source

@Override
    public View getView(int position, View convertView, ViewGroup parent) {

        // Planet to display
        UrlItem urlItem = (UrlItem) this.getItem(position);
        ViewHolder viewHolder = null;

        if (convertView == null) {

            convertView = inflater.inflate(R.layout.database_table_item, null);
            viewHolder = new ViewHolder();
            viewHolder.checkbox = (CheckBox) convertView
                    .findViewById(R.id.checkBox1);



            viewHolder.checkbox
                    .setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

                        public void onCheckedChanged(CompoundButton buttonView,
                                boolean isChecked) {

                            int getPosition = (Integer) buttonView.getTag();
                            DatabaseTable.setPosition(getPosition);


                            for (int i = 0; i < UrlItems.size(); i ++ ) {

                                UrlItems.get(i).setUse(false);

                            }

                            UrlItems.get(getPosition).setUse(isChecked);


                        }
                    });

How can I refresh the list after changes ??

for your information in the manifest set

<activity
            android:name=".DatabaseTable"
            android:label="database_table" android:windowSoftInputMode="adjustPan" >

See the link for the upgrade using the button "selectAll" I have exact same idea but without the button selectAll

http://pastebin.com/PgNeDnXq

解决方案

adapter.notifyDataSetChanged(); // to notify the adapter that your data has been updated

Note: If you get any errors with the above line, you could try the following code (where mListView is the name of my ListView object)

((BaseAdapter) mListView.getAdapter()).notifyDataSetChanged(); 

Another way would be to invalidate the List so that it is redrawn form the updated data set once again.

mListView=(ListView) findViewById(R.id.MyListView);
mListView.invalidate();

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