我正在尝试以编程方式更改微调器的状态样式。
但是当我按下一个项目时,它们都被改变了!在按下一切都很好之前,颜色很好:
按下时,所有项目变为绿色:
我在我的自定义适配器中做到了这一点:
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
//getting the views and all the stuff
StateListDrawable colorStateList = new StateListDrawable();
colorStateList.addState(new int[] {android.R.attr.state_focused, android.R.attr.state_pressed}, new ColorDrawable(Color.BLACK));
colorStateList.addState(new int[] {android.R.attr.state_focused }, new ColorDrawable(Color.BLUE));
colorStateList.addState(new int[] { android.R.attr.state_pressed}, new ColorDrawable(Color.GREEN));
colorStateList.addState(new int[] { }, new ColorDrawable(Color.YELLOW));
holder.container.setBackgroundDrawable(colorStateList);
return convertView;
}
这是我的自定义下拉布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/spinner_container"
android:layout_width="@dimen/icon_ligne_size"
android:layout_height="@dimen/icon_ligne_size"
android:layout_gravity="left"
android:gravity="left"
android:orientation="horizontal" >
<TextView
android:id="@+id/spinner_dir1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3"
android:gravity="center_vertical"
android:textAppearance="@android:style/TextAppearance.Medium" />
<ImageView
android:id="@+id/spinner_arrow"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_weight="1" />
<TextView
android:id="@+id/spinner_dir2"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3"
android:gravity="center_vertical"
android:textAppearance="@android:style/TextAppearance.Medium" />
</LinearLayout>
(我知道这很丑,但这只是为了测试)