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Spinner實(shí)現(xiàn)選項(xiàng)的圖標(biāo)與文本并排

發(fā)布時(shí)間:2024-08-19 09:07:29 來(lái)源:億速云 閱讀:79 作者:小樊 欄目:移動(dòng)開(kāi)發(fā)

要實(shí)現(xiàn)Spinner中選項(xiàng)的圖標(biāo)與文本并排,可以使用自定義適配器來(lái)處理Spinner中每個(gè)選項(xiàng)的布局。以下是一個(gè)示例代碼:

  1. 創(chuàng)建一個(gè)自定義適配器類CustomAdapter繼承自ArrayAdapter,并重寫(xiě)getView方法:
public class CustomAdapter extends ArrayAdapter<String> {
    private Context mContext;
    private List<String> mOptions;
    private List<Integer> mIcons;

    public CustomAdapter(Context context, int resource, List<String> objects, List<Integer> icons) {
        super(context, resource, objects);
        mContext = context;
        mOptions = objects;
        mIcons = icons;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View row = inflater.inflate(R.layout.spinner_row, parent, false);

        TextView textView = row.findViewById(R.id.text_view);
        ImageView imageView = row.findViewById(R.id.image_view);

        textView.setText(mOptions.get(position));
        imageView.setImageResource(mIcons.get(position));

        return row;
    }

    @Override
    public View getDropDownView(int position, View convertView, ViewGroup parent) {
        return getView(position, convertView, parent);
    }
}
  1. 創(chuàng)建一個(gè)包含TextView和ImageView的布局文件spinner_row.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <ImageView
        android:id="@+id/image_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="8dp"/>

    <TextView
        android:id="@+id/text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</LinearLayout>
  1. 在Activity中設(shè)置Spinner的適配器為自定義適配器CustomAdapter:
List<String> options = Arrays.asList("Option 1", "Option 2", "Option 3");
List<Integer> icons = Arrays.asList(R.drawable.ic_option1, R.drawable.ic_option2, R.drawable.ic_option3);

Spinner spinner = findViewById(R.id.spinner);
CustomAdapter adapter = new CustomAdapter(this, R.layout.spinner_row, options, icons);
spinner.setAdapter(adapter);

通過(guò)以上步驟,你可以實(shí)現(xiàn)Spinner中選項(xiàng)的圖標(biāo)與文本并排顯示。

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