在点击时突出显示多个项目

时间:2015-02-15 19:02:32

标签: android

我希望我的listview能够突出显示多行。我查看了所有资源,但似乎没有任何工作 - 我知道我必须使用listview.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);但不太确定我将如何实现这一点。这是我的代码。

public class ConversationView extends Activity {
    TextView hello;

    Integer threadId;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_conversation_view);

        Intent intent = getIntent();
        String thread = intent.getStringExtra("threadId");

        threadId = Integer.parseInt(thread);

        final ListView convoListView = (ListView) this.findViewById(R.id.conversationListView);

        ArrayList<ConversationItem> convoItems = this.GetItems(threadId);

        final ConversionAdapter convoAdapter = new ConversionAdapter(getApplicationContext(), convoItems);

        convoListView.setAdapter(convoAdapter);
   }



    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_conversation_view, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    public ArrayList<ConversationItem> GetItems(Integer threadId)
    {
        ArrayList<ConversationItem> convos = new ArrayList<>();
        convos.add(new ConversationItem(1, 1, "Bob Smith", DateTime.now(), "Lorem ipsum dolor sit amet, "));
        convos.add(new ConversationItem(1, 2, "Bob Smith", DateTime.now(), "Lorem ipsum dolor sit amet,Donec lacinia nunc sed faucibus suscipit. Curabitur."));
        convos.add(new ConversationItem(1, 3, "Bob Smith", DateTime.now(), "Lorem ipsum dolor sit amet, Curabitur."));
        convos.add(new ConversationItem(1, 4, "Bob Smith", DateTime.now(), "Lorem ipsum dolor sit amet, "));

        ArrayList<ConversationItem> returnItems = new ArrayList<>();

        for(int i = 0; i < convos.size(); i++)
        {
            if(convos.get(i).ThreadId.equals(threadId))
            {
                returnItems.add(convos.get(i));
            }
        }

        return returnItems;
    }

这是我的适配器:

    public class ConversionAdapter extends ArrayAdapter<ConversationItem>
    {

        private final Context context;
        private final ArrayList<ConversationItem> items;
        private int currentPage = 0;

        public ConversionAdapter(Context context, ArrayList<ConversationItem> convoItems) {
            super(context, 0, convoItems);
            this.context = context;
            this.items = convoItems;
        }


        public View getView(int position, View convertView, ViewGroup parent) {
            //View rowView;


            {
                LayoutInflater inflater = (LayoutInflater) context
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);


                convertView = getLayoutInflater().inflate
                        (R.layout.conversation_list_item, parent,false);


                //Username
                TextView username = (TextView) convertView
                        .findViewById(R.id.conversation_username);
                username.setText(items.get(position).convoUsername);

                //Date Time
                TextView dateTime = (TextView) convertView
                        .findViewById(R.id.conversation_date);
                dateTime.setText(items.get(position).DateTimeStamp.toString());

                //Message
                TextView message = (TextView) convertView
                        .findViewById(R.id.conversation_message);
                message.setText(items.get(position).Message);

            }

            return convertView;
        }
    }
}

0 个答案:

没有答案