如何在android中禁用卡片视图周围的阴影

Question

您好我正在使用演示应用程序,我正在使用支持库的卡片视图.默认情况下,它会在它周围添加阴影.我想删除这个阴影,看起来应该很简单.

我试过这个对我不起作用.

CardView cardView = (CardView) v.findViewById(R.id.cardView);
cardView.setElevation(0);

做完这些之后我就崩溃了

11-06 15:12:17.018: E/AndroidRuntime(24315): FATAL EXCEPTION: main
11-06 15:12:17.018: E/AndroidRuntime(24315): Process: com.xyz, PID: 24315
11-06 15:12:17.018: E/AndroidRuntime(24315): java.lang.NoSuchMethodError: android.support.v7.widget.CardView.setElevation
11-06 15:12:17.018: E/AndroidRuntime(24315):    at com.xyz.adapters.RecycleViewAdapter.onCreateViewHolder(RecycleViewAdapter.java:85)
11-06 15:12:17.018: E/AndroidRuntime(24315):    at com.xyz.adapters.RecycleViewAdapter.onCreateViewHolder(RecycleViewAdapter.java:1)
11-06 15:12:17.018: E/AndroidRuntime(24315):    at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:2915)
11-06 15:12:17.018: E/AndroidRuntime(24315):    at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:2511)
11-06 15:12:17.018: E/AndroidRuntime(24315):    at android.support.v7.widget.LinearLayoutManager$RenderState.next(LinearLayoutManager.java:1425)
11-06 15:12:17.018: E/AndroidRuntime(24315):    at android.support.v7.widget.LinearLayoutManager$RenderState.next(LinearLayoutManager.java:1425)

layout.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    xmlns:app="http://schemas.android.com/apk/res/com.xyz"
    android:id="@+id/cardView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginBottom="5dp"
    android:layout_marginLeft="5dp"
    android:layout_marginRight="5dp"
    android:orientation="horizontal" >

提前致谢.

Answer 1

在XML中使用此属性

card_view:cardElevation="0dp"

并记住添加xmlns:card_view="http://schemas.android.com/tools"你的根布局.

或者您可以调用cardView.setCardElevation(0)以编程方式禁用阴影.

cardView.setElevation()方法和CardView属性android:elevation将在Android 5.0之前的平台中抛出java.lang.NoSuchMethodError

Answer 2

尝试将高程放在Xml中.

app:cardElevation="0dp"

要么

cardView.setCardElevation(0);

并检查您使用的是最新的CardView库.

Answer 3

使用app:cardElevation="0dp"，不要使用pp:elevation="0dp"

Answer 4

只需将此行放入CardView中:

app:cardElevation="0dp"

希望它会对你有所帮助.

Answer 5

尝试这样可能会帮助你，

CardView cardView = (CardView) v.findViewById(R.id.cardView);
cardView.setCardElevation(0);

Answer 6

您应该首先将此添加到您的父布局

xmlns:card_view="http://schemas.android.com/tools"

然后像这样设置高程

card_view:cardElevation="0dp"

Answer 7

 <android.support.v7.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:cardElevation="0dp"
        app:cardCornerRadius="2dp">
....`
 </android.support.v7.widget.CardView>

Answer 8

您可以使用XML来实现它，例如：

<android.support.v7.widget.CardView
    android:id="@+id/card_view"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginLeft="2dp"
    android:layout_marginRight="2dp"
    app:cardElevation="0dp"
    app:cardCornerRadius="0.5dp"
    app:cardPreventCornerOverlap="false"
    app:cardUseCompatPadding="true"
    >
   </android.support.v7.widget.CardView>

希望对您有帮助！