我正在尝试创建三个CardView
,每个ImageView
包含一些TextView
和RecyclerView
。我没有使用CardViews
,因为我在该活动中始终会有这3个CardView
。但为什么strings.xml
的内容如文本显示(在预览和应用程序中)?
这是我的活动XML代码。我在<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.yankee.cw.ll_home">
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
app:cardUseCompatPadding="true"
android:id="@+id/card_view0"
android:layout_gravity="center"
android:padding="16dp"
android:clickable="true"
card_view:contentPadding="24dp"
android:foreground="?android:attr/selectableItemBackground"
android:layout_width="match_parent"
android:layout_height="200dp"
card_view:cardBackgroundColor="@color/cardview_light_background"
card_view:cardElevation="@dimen/cardview_default_elevation"
card_view:cardCornerRadius="4dp">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:weightSum="1"
android:layout_height="0dp">
<ImageView
android:layout_width="0dp"
android:layout_weight="0.15"
android:layout_height="match_parent" />
<TextView
android:layout_width="0dp"
android:layout_weight="0.70"
android:layout_gravity="center"
android:textAllCaps="true"
android:text="@string/ll_home_card_title_1"
android:layout_height="match_parent" />
<ImageView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.15"/>
</LinearLayout>
<TextView
android:layout_width="match_parent"
android:text="@string/ll_home_card_content_1"
android:layout_height="0dp" />
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
app:cardUseCompatPadding="true"
android:id="@+id/card_view1"
android:layout_gravity="center"
android:padding="16dp"
android:clickable="true"
android:foreground="?android:attr/selectableItemBackground"
android:layout_width="match_parent"
android:layout_height="200dp"
card_view:cardBackgroundColor="@color/cardview_light_background"
card_view:cardElevation="@dimen/cardview_default_elevation"
card_view:cardCornerRadius="4dp">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:weightSum="1"
android:layout_height="0dp">
<ImageView
android:layout_width="0dp"
android:layout_weight="0.15"
android:layout_height="match_parent" />
<TextView
android:layout_width="0dp"
android:layout_weight="0.70"
android:layout_gravity="center"
android:textAllCaps="true"
android:text="@string/ll_home_card_title_2"
android:layout_height="match_parent" />
<ImageView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.15"/>
</LinearLayout>
<TextView
android:layout_width="match_parent"
android:text="@string/ll_home_card_content_2"
android:layout_height="0dp" />
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
app:cardUseCompatPadding="true"
android:id="@+id/card_view2"
android:layout_gravity="center"
android:clickable="true"
android:foreground="?android:attr/selectableItemBackground"
android:padding="16dp"
android:layout_width="match_parent"
android:layout_height="200dp"
card_view:cardBackgroundColor="@color/cardview_light_background"
card_view:cardCornerRadius="4dp">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:weightSum="1"
android:layout_height="0dp">
<ImageView
android:layout_width="0dp"
android:layout_weight="0.15"
android:layout_height="match_parent" />
<TextView
android:layout_width="0dp"
android:layout_weight="0.70"
android:layout_gravity="center"
android:textAllCaps="true"
android:text="@string/ll_home_card_title_3"
android:layout_height="match_parent" />
<ImageView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.15"/>
</LinearLayout>
<TextView
android:layout_width="match_parent"
android:text="@string/ll_home_card_content_3"
android:layout_height="0dp" />
</android.support.v7.widget.CardView>
</LinearLayout>
</ScrollView>
中设置了相应的值。
~/.m2/repository
答案 0 :(得分:2)
你需要在LinearLayout中将height设置为match_parent,而不是0dp, 并且每个CardView中的最后一个TextView设置为0高度,因此您应该更改它,您可以在LinearLayout中使用权重但不能在其上使用权重(除非它在其他线性布局内)