自定义LinearLayout调用方法

public class CustomLinearLayout extends LinearLayout {
    // 构造方法
    public CustomLinearLayout(Context context) {
        super(context);
    }

    public CustomLinearLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CustomLinearLayout(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    // 重写方法
    @Override
    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
        super.onLayout(changed, left, top, right, bottom);
        // 自定义布局的具体实现
    }
}

<com.example.CustomLinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <!-- 添加子视图 -->

</com.example.CustomLinearLayout>

CustomLinearLayout customLayout = findViewById(R.id.custom_layout);
customLayout.methodName();