Android 使用SimpleCursorAdapter在列表视图中设置图像
我想在ListView中设置图像,我的目的是从数据库中获取一个包含图像地址的字符串(例如“@drawable/image”),并为LisView的元素设置图像。我已经创建了一个自定义SimpleCursorAdapter来更改字体。这是我的自定义SimpleCursorAdapter代码:Android 使用SimpleCursorAdapter在列表视图中设置图像,android,listview,Android,Listview,我想在ListView中设置图像,我的目的是从数据库中获取一个包含图像地址的字符串(例如“@drawable/image”),并为LisView的元素设置图像。我已经创建了一个自定义SimpleCursorAdapter来更改字体。这是我的自定义SimpleCursorAdapter代码: public class CustomFontExampleAdapter extends SimpleCursorAdapter { private Typeface mCustomFont;
public class CustomFontExampleAdapter extends SimpleCursorAdapter
{
private Typeface mCustomFont;
@SuppressWarnings("deprecation")
public CustomFontExampleAdapter(final Context context, final int layout, final Cursor c, final String[] from,
final int[] to) {
super(context, layout, c, from, to);
mCustomFont = Typeface.createFromAsset(context.getAssets(), "font/Pompiere-Regular.ttf");
}
@Override
public void bindView(final View view, final Context context, final Cursor cursor) {
super.bindView(view, context, cursor);
final TextView _TextViewTitle = (TextView) view.findViewById(R.id.record_nome);
_TextViewTitle.setTypeface(mCustomFont);
}
}
这是我设置适配器时的代码:
d= new Database(getActivity());
final Cursor c = d.scelta();
CursorLoader(c);
String from[] = {Codice.DATI_ID,
Codice.DATI_NOME_DIETA};
int to[] = {R.id.record_id,
R.id.record_nome};
@SuppressWarnings("deprecation")
CustomFontExampleAdapter sca = new CustomFontExampleAdapter(rootView.getContext(),
R.layout.singolo_elemento,
c, from, to);
sceltadieta = (ListView) rootView.findViewById(R.id.scelta_dieta);
sceltadieta.setAdapter(sca);
在这一行之后:
_TextViewTitle.setTypeface(mCustomFont);
你应该去:
ImageView _ImageView = (ImageView) view.findViewById(R.id.your_image_id)
//Suppose you've already get your string(because it's not part of a question)
Drawable drawable = getResources().getDrawable(getResources()
.getIdentifier(yourStringName, "drawable", context.getPackageName()));
_ImageView.setImageDrawable(drawable)
哦,据我所知,你的适配器中没有上下文,将上下文放到适配器中是很常见的事情,你应该通过它抛出构造函数(就像你做的那样),并存储对它的引用(创建字段并通过构造函数中的上下文初始化它)对不起,尼克,你能解释一下如何获取字符串吗?你写了数据库吗?是的,我已经用每个图像的引用填充了它,这个字符串将是游标中当前项的图像名称的字段,仅此而已,您知道如何获取它吗?