Question

嗨，我有一个SQLite数据库，我使用一个简单的游标来读取数据库，然后将其显示给TextView。但是，我想在ListView中显示数据。

所以我有字符串，但我不知道如何在ListView中显示它。有一个简单的方法或我将不得不创建各种适配器？

我还想知道如何将列表视图的一部分设置为标题，将其他部分设置为子标题。我想要它，以便每个行都是不同的列表项，如果可能的话。

Answer 1

这是一个简单的例子。假设您的主要活动中有两个名为“Items”和“ItemsId”的数组列表。现在，在您的数据库处理程序类中，使用下面的代码获取表并将值存储到Items和ItmesId数组列表中。

    MainActivity.Items.clear();
    MainActivity.ItemsId.clear();

    // Select All Query
    String selectQuery = "SELECT  * FROM " + TABLE_NAME;

    SQLiteDatabase db = this.getWritableDatabase();
    Cursor cursor = db.rawQuery(selectQuery, null);

    // looping through all rows and adding to list
    if (cursor.moveToFirst()) {
        do {
            // Adding values to list
            MainActivity.Items.add(cursor.getString(0));
            MainActivity.ItemsId.add(cursor.getString(0));
           } while (cursor.moveToNext());
    }

现在使用主要活动中的项目数组列表填充列表视图。

final StableArrayAdapter adapter = new StableArrayAdapter(this,
    android.R.layout.simple_list_item_1, Items);
listview.setAdapter(adapter);

Answer 2

使用SimpleCursorAdapter。

这是一个简单的例子：

    yourListView.setAdapter(new SimpleCursorAdapter(
    /* The context where the ListView associated with this SimpleListItemFactory is running */, 
    /* resource identifier of a layout file that defines the views for this list item. The layout file should include at least those named views defined in "to" */, 
    /* The database cursor. Can be null if the cursor is not available yet. */,
    /* A list of column names representing the data to bind to the UI. Can be null if the cursor is not available yet. */, 
    /* The views that should display column in the "from" parameter. These should all be TextViews. The first N views in this list are given the values of the first N columns in the from parameter. Can be null if the cursor is not available yet. */, 
    /* Flags used to determine the behavior of the adapter, as per CursorAdapter(Context, Cursor, int). */));

在ListView中显示SQLite

2 个答案: