如何使用Android自定义视图中设置的属性调整充气式布局的大小？

Question

I am creating a custom view by inflating from a layout as following:

CustomView.java

public class CustomView extends FrameLayout {
    public CustomView(@NonNull Context context) {
        this(context, null);
    }

    public CustomView(@NonNull Context context, @Nullable AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CustomView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);

        LayoutInflater.from(context).inflate(R.layout.custom_view, this, true);
    }
}

custom_view.xml

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

    ...

</FrameLayout>

My problem is that when I use this custom view in the layout with some layout_width and layout_height values, the content inside does not resize with the new value.

Answer 1

As your CustomView extends FrameLayout and the root of custom_view.xml is also FrameLayout , you can use merge .

Just change the root of custom_view.xml to <merge></merge> .