java.lang.ClassCastException:android.view.ViewGroup$LayoutParams不能强制转换为android.widget.RelativeLayout$LayoutParams

我刚刚编辑了我的XML，我在XML中添加了幻灯片菜单代码，但是有一个错误

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

    <ListView 
        android:id="@+id/menu_content_menulist"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:padding="8dp"

        android:cacheColorHint="@android:color/transparent" 
        android:divider="@null"
        android:listSelector="@null"/>      
    <RelativeLayout 
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <com.mozaik.tangsel.side_menu_scroll.ScrollerLinearLayout       
            android:id="@+id/menu_content_side_slide_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"        
            android:orientation="verti_

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:id="@+id/content_statis"        
        android:orientation="vertical"
        android:background="@drawable/bg_app"
         >

        <include layout="@layout/layout_action_bar" />
    <ScrollView
        android:id="@+id/SV"
        android:layout_width="fill_parent"
        android:layout_height="match_parent"
        android:fillViewport="true" 
        >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_margin="4dp"
                android:background="@drawable/inbox_interface"
                android:orientation="vertical" >

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical" >

                    <ImageView
                        android:id="@+id/ImageMozaikTangsel"
                        android:layout_width="fill_parent"
                        android:layout_height="wrap_content"
                        android:layout_margin="10dip" />

                </LinearLayout>

                <LinearLayout
                    android:id="@+id/tabMozaikTangselLayout"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical" >
                </LinearLayout>

            </LinearLayout>

        </LinearLayout>

</ScrollView>

   </LinearLayout>
</com.mozaik.tangsel.side_menu_scroll.ScrollerLinearLayout>
</RelativeLayout>
</RelativeLayout>

---

在您的代码中，您正在导入

import android.widget.RelativeLayout.LayoutParams而不是android.view.ViewGroup.LayoutParams

因此，删除

导入android.widget.RelativeLayout.LayoutParams

并添加导入android.view.ViewGroup.LayoutParams

只需单击Cnt+o删除不需要的导入

您应该将LayoutParams对象设置为父布局。下面布局中的示例要设置LinearLayout的高度和宽度，必须使RelativeLayout的布局参数不是LinearLayout本身

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

      <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"/>


 </RelativeLayout>

使用以下代码：

imageView.setLayoutParams(
  new android.widget.RelativeLayout.LayoutParams(
    ViewPager.LayoutParams.MATCH_PARENT,
    ViewPager.LayoutParams.MATCH_PARENT));

---

如果遇到任何错误，请务必通知我。

看起来您正在修改代码中的

布局参数。XML布局本身不会导致这种情况。因此，请在问题中包含相关代码。请确保导入正确的LayoutParams。我的错误已通过@kalyan pvs的回答解决，谢谢：）@bukanamay Good，那么你必须接受他的答案，这里需要帮助为什么ViewGroup.LayoutParams会起作用？@IgorGanapolsky因为LayoutParams是特定类的内部类..RelativeLayout扩展ViewGroup所以你可以进行类型转换，但是RelativeLayout.LayoutParams不能扩展ViewGroup.LayoutParams所以它会抛出classcastexception等等这是一个很好的答案。
//IN ACTIVITY
RelativeLayout.LayoutParams params=new RelativeLayout.LayoutParams(30,30); //Parent Params
linearLayout.setLayoutParmas(params); //Child Layout


//If you want to set the params of the Relative Layout above. It seems it doesn't have any parent but it has a parent created by android framework which is a frame layout. So 
FrameLayout.LayoutParmas params=new FrameLayout.LayoutParmas(30, 30);//FrameLayout is a parentcreated by anroid frame work
relativeLayout.setLayoutParmas(params);  ////Here Relative layout is child

imageView.setLayoutParams(
  new android.widget.RelativeLayout.LayoutParams(
    ViewPager.LayoutParams.MATCH_PARENT,
    ViewPager.LayoutParams.MATCH_PARENT));