在ListView中显示SQLite

Question

嗨，我有一个SQLite数据库，我用一个简单的游标读取数据库，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。有没有简单的方法，还是我必须创建一个适配器？

我还想知道如何设置列表视图的部分到标题和其他人的子标题。如果可能的话，我希望每行都是不同的列表项。

Answer 1

使用SimpleCursorAdapter。

下面是一个简单的例子：

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). */)); 

Answer 2

下面是一个简单example.Lets说你有两个数组列表命名为您的主要活动“项目”和“ItemsId”。 现在，在您的数据库处理程序类中获取您的表并使用以下代码将值存储到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()); 
    } 

现在使用主活动中的Items数组列表填充您的列表视图。

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