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遵循Stackoverflow上此question的教程。查询数据库后,我有变量results
中的记录。如何格式化结果以便它可以是数组。下面是一个例子:以逗号分隔格式化数据库结果
lvActivityCategory.setAdapter(new categoryCursorAdaptor(this, new String[] { "data1", "data2" }));
这是我目前正与代码:
List<String> arrayCatNames = new ArrayList<String>();
String query = "SELECT * FROM category ORDER BY name ASC";
Cursor results = myDB.rawQuery(query, null);
while(results.moveToNext()){
String catName = results.getString(results.getColumnIndex("name"));
arrayCatNames.add(catName);
}
android.text.TextUtils.join(",", arrayCatNames);
lvActivityCategory = (ListView) findViewById(R.id.lvActivityCategory);
lvActivityCategory.setAdapter(new categoryCursorAdaptor(this, new String[] { arrayCatNames })); //arrayCatNames should be e.g. "item 1", "item 2", "item 3"
您是否尝试将ArrayList arrayCatNames转换为数组? –
@HtmlTosin是的,这是正确的 –