当使用SimpleCursorAdapter显示它改变的ListView项目文本 [英] Change text of items in ListView when it is displayed using SimpleCursorAdapter

问题描述

当使用SimpleCursorAdaptor显示它如何改变项目的文本的ListView？
这里是我的code。

How to change text of items in ListView when it is displayed using SimpleCursorAdaptor? Here is my code.

Cursor allTaskcursor = databaseHelper.getAllTasks();
String[] from = {"name", "date"};
int[] to = new int[] {android.R.id.text1, android.R.id.text2};
SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(context, android.R.layout.simple_list_item_2, allTaskcursor, from, to, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
allTaskListView.setAdapter(cursorAdapter);

的 getAllTask​​s（），它显示在的 android.R.id.text2 的的返回游标其中date是一个整数值（例如10）。我想改变的文本（例如10日）。

getAllTasks() returns a cursor where date is an Integer value (example 10) which is displayed in android.R.id.text2. I want to change that text (example "10 days").

推荐答案

的 SimpleCursorAdapter.ViewBinder 的做的工作。作为回答这里，我改变了code到..

SimpleCursorAdapter.ViewBinder did the job. As answered here, I changed the code to..

Cursor allTaskcursor = databaseHelper.getAllTasks();
    String[] from = {"name", "date"};
    int[] to = new int[] {android.R.id.text1, android.R.id.text2};
    SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(context, android.R.layout.simple_list_item_2, allTaskcursor, from, to, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
    cursorAdapter.setViewBinder(new SimpleCursorAdapter.ViewBinder() {
        @Override
        public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
            if (view.getId() == android.R.id.text2) {
                int getIndex = cursor.getColumnIndex("date");
                int date = cursor.getInt(getIndex);
                TextView dateTextView = (TextView) view;
                dateTextView.setText(date + " days");
                return true;
            }
            return false;
        }
    });
    allTaskListView.setAdapter(cursorAdapter);

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