如何在Android中使用光标数据创建列表数组 [英] How can I create a list Array with the cursor data in Android

问题描述

如何使用光标数据创建列表数组(滚动时列表显示第一个字母)?

How can I create a list Array (the list display First Alphabet when scroll) with the cursor data?

推荐答案

遍历Cursor中的每一个元素，并将它们一一添加到ArrayList中.

Go through every element in the Cursor, and add them one by one to the ArrayList.

ArrayList<WhateverTypeYouWant> mArrayList = new ArrayList<WhateverTypeYouWant>();
for(mCursor.moveToFirst(); !mCursor.isAfterLast(); mCursor.moveToNext()) {
    // The Cursor is now set to the right position
    mArrayList.add(mCursor.getWhateverTypeYouWant(WHATEVER_COLUMN_INDEX_YOU_WANT));
}

(将 WhateverTypeYouWant 替换为您想要创建 ArrayList 的任何类型，并将 WHATEVER_COLUMN_INDEX_YOU_WANT 替换为您想要的值的列索引从游标中获取.)

(replace WhateverTypeYouWant with whatever type you want to make a ArrayList of, and WHATEVER_COLUMN_INDEX_YOU_WANT with the column index of the value you want to get from the cursor.)

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