Question

我有一个linearlayout，如下面的code1所示，我添加了一个背景，以便在选择时更改其外观/背景。

在下面的代码2中，我给视图充气，我想添加相同的选择器/背景＆＃39; android：background =＆＃34;？android：attr / listChoiceBackgroundIndicator＆＃34;＆＃39; 到code2中膨胀的视图

我该如何以编程方式执行此操作？

CODE1 ：

<LinearLayout
            android:id="@+id/versicherungs_verDetailsListFooter_container"
            android:layout_width="match_parent"
            android:layout_height="@dimen/vers_height"
            android:layout_below="@id/horizontalDivider0"
            android:clickable="true"
            android:orientation="horizontal"
            android:paddingLeft="15dp"
            android:visibility="gone"
            android:weightSum="1"
            android:background="?android:attr/listChoiceBackgroundIndicator">

码2 ：

final LinearLayout linLay = (LinearLayout) findViewById(R.id.versicherungs_verDetailsListFooter_container);

    LayoutInflater inflator = this.getLayoutInflater();
    final View view = inflator.inflate(R.layout.versicherungs_docs_footer, null);

    RelativeLayout relLay = (RelativeLayout) view.findViewById(R.id.versicherungs_footer_mainContainer);
    final TextView texVieShowMore = (TextView) view.findViewById(R.id.showMore);
    final TextView texVieShowLess = (TextView) view.findViewById(R.id.showLess);
    final TextView texVieShowMoreArrow = (TextView) view.findViewById(R.id.showMoreArrow);
    final TextView texVieShowLessArrow = (TextView) view.findViewById(R.id.showLessArrow);

    //how to add the selector "?android:attr/listChoiceBackgroundIndicator" to the RelativeLayout "relLay"

Answer 1

您需要解决主题中的属性：

TypedValue typedValue = new TypedValue();
if (getTheme() != null) {
    getTheme().resolveAttribute(R.attr.listChoiceBackgroundIndicator, typedValue, true);
}
int drawableResourceId = typedValue.resourceId; // it can by equal 0

然后设置视图的后台资源：

relLay.setBackgroundResource(drawableResourceId);

如何以编程方式将选择器添加到视图中

1 个答案: