Question

我有惯例认为:

public class MyView extends RelativeLayout {

    private LayoutInflater inflater;

    public MyView(Context context, AttributeSet attrs) {
        super(context, attrs);
        inflater = LayoutInflater.from(context);
        inflater.inflate(R.layout.my_view, this);
    }
}

注

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"/>

我还有一个背景选择:

<?xml version="1.0" encoding="UTF-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:state_pressed="true"
           android:drawable="@drawable/top_press" /> <!-- pressed -->
     <item android:drawable="@drawable/top_idle" /> <!-- default -->
 </selector>

当我以挑选人为背景时,它就没有工作:

<com.example.MyView style="@style/someStyle" 
    android:background="@drawable/item_selector_top" android:clickable="true"/>

然而,当我从内部Xml带去背景时,它确实发挥了作用:

    <?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:background="@drawable/item_selector_top"/>

谁知道为什么?

Answer 1

你们应该把父母的国度传到你们的习俗中。使用:

android:duplicateParentState="true"

注:如果您的习俗认为A->B->C 和你希望C 处理国家行为,那么你也应该将重复Parent State to A and B view.

友情链接