下面的代码是在android版本为pre - lollipop的设备上以不希望的视图边界呈现的:
<android.support.v7.widget.CardView
android:id="@+id/cardView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
app:cardBackgroundColor="@color/transparent"
app:cardCornerRadius="@dimen/card_corner_radius"
app:cardElevation="0dp"
app:cardUseCompatPadding="true">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.makeramen.roundedimageview.RoundedImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:adjustViewBounds="true"
app:srcCompat="@{radio.radioLogo}"
app:riv_corner_radius="@dimen/card_corner_radius"
android:alpha="@{radio.playing}"/>
<LinearLayout
android:id="@+id/overlay_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:background="@color/transparent"
android:gravity="center"
android:orientation="vertical"
android:visibility="@{radio.recording?View.VISIBLE:View.GONE}">
<TextView
android:id="@+id/recording_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/transparent"
android:text="@string/recording"
android:textAppearance="?android:textAppearanceLarge"
android:textColor="@color/white" />
<TextView
android:id="@+id/recording_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/transparent"
android:text="@{radio.recordingElapsedTime}"
android:textAppearance="?android:textAppearanceLarge"
android:textColor="@color/white" />
</LinearLayout>
</FrameLayout>
</android.support.v7.widget.CardView>
ps: I tried card_view:cardPreventCornerOverlap="false"但这并不能解决我的问题。棒棒糖呈现
预棒棒糖渲染
提前感谢你有兴趣帮助我。
我找到了一个适合我的解决方案,我想把它贴出来,以防其他人遇到这种情况。我将最大仰角设置为0dp,现在渲染在API级别16上也很完美。
<android.support.v7.widget.CardView
android:id="@+id/cardView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
app:cardBackgroundColor="@color/transparent"
app:cardCornerRadius="@dimen/card_corner_radius"
app:cardElevation="0dp"
app:cardMaxElevation="0dp"
app:cardUseCompatPadding="true">
如果您需要在v21设备上保持仰角并在pre21设备上删除cardview奇怪的边界-创建values-v21/dimensions .xml:
<dimen name="card_elevation">2dp</dimen>
和values/dimensions .xml with:
<dimen name="card_elevation">0dp</dimen>
然后给CardView添加属性:
app:cardElevation="@dimen/card_elevation"