Android ImageView不是'；t中心内卡德维尤

我有一个方形图像，我的CardView中的ImageView也是方形的，但它向我显示了如下图片：

原图：

这是我的布局文件：

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.card.MaterialCardView 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="wrap_content"
    app:cardBackgroundColor="@android:color/white"
    app:cardElevation="2dp"
    app:cardPreventCornerOverlap="true"
    android:layout_margin="10dp">

    <LinearLayout
        android:id="@+id/linearLayout"
        android:layout_width="374dp"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <ImageView
            android:id="@+id/illness_image"
            android:layout_width="364dp"
            android:layout_height="364dp"
            android:background="?attr/colorPrimaryDark"
            android:cropToPadding="true" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="16dp">

            <TextView
                android:id="@+id/illness_title"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Title"
                android:textAppearance="?attr/textAppearanceHeadline6"
                android:textSize="20sp" />

            <TextView
                android:id="@+id/illness_description"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Description"
                android:textAppearance="?attr/textAppearanceBody2"
                android:textSize="10sp" />

            <TextView
                android:id="@+id/illness_engagement"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="right"
                android:text="Engagment"
                android:textAppearance="?attr/textAppearanceBody2"
                android:textSize="10sp" />
        </LinearLayout>
    </LinearLayout>
</android.support.design.card.MaterialCardView>

---

编辑：对不起，我不明白。我无法插入我的XML代码。

只需在图像视图中添加

android:layout\u gravity=“center”

即可

试试这个

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.card.MaterialCardView 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="wrap_content"
    android:layout_margin="10dp"
    app:cardBackgroundColor="@android:color/white"
    app:cardElevation="2dp"
    app:cardPreventCornerOverlap="true">

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

        <ImageView
            android:id="@+id/illness_image"
            android:layout_width="350dp"
            android:layout_height="364dp"
            android:layout_gravity="center"
            android:scaleType="centerInside"
            android:src="@drawable/dishu" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="16dp">

            <TextView
                android:id="@+id/illness_title"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Title"
                android:textAppearance="?attr/textAppearanceHeadline6"
                android:textSize="20sp" />

            <TextView
                android:id="@+id/illness_description"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Description"
                android:textAppearance="?attr/textAppearanceBody2"
                android:textSize="10sp" />

            <TextView
                android:id="@+id/illness_engagement"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="right"
                android:text="Engagment"
                android:textAppearance="?attr/textAppearanceBody2"
                android:textSize="10sp" />
        </LinearLayout>
    </LinearLayout>
</android.support.design.card.MaterialCardView>

 <?xml version="1.0" encoding="utf-8"?>
 <android.support.design.card.MaterialCardView 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="wrap_content"
app:cardBackgroundColor="@android:color/white"
app:cardElevation="2dp"
app:cardPreventCornerOverlap="true"
android:layout_margin="10dp">

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

    <ImageView
        android:id="@+id/illness_image"
        android:layout_width="match_parent"
        android:layout_height="364dp"
        android:background="?attr/colorPrimaryDark"
        android:scaleType="fitXY"
       />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="16dp">

        <TextView
            android:id="@+id/illness_title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Title"
            android:textAppearance="?attr/textAppearanceHeadline6"
            android:textSize="20sp" />

        <TextView
            android:id="@+id/illness_description"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Description"
            android:textAppearance="?attr/textAppearanceBody2"
            android:textSize="10sp" />

        <TextView
            android:id="@+id/illness_engagement"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="right"
            android:text="Engagment"
            android:textAppearance="?attr/textAppearanceBody2"
            android:textSize="10sp" />
    </LinearLayout>
</LinearLayout>

试试这个

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.card.MaterialCardView 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="wrap_content"
    android:layout_margin="10dp"
    app:cardBackgroundColor="@android:color/white"
    app:cardElevation="2dp"
    app:cardPreventCornerOverlap="true">

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

        <ImageView
            android:id="@+id/illness_image"
            android:layout_width="350dp"
            android:layout_height="364dp"
            android:layout_gravity="center"
            android:scaleType="centerInside"
            android:src="@drawable/dishu" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="16dp">

            <TextView
                android:id="@+id/illness_title"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Title"
                android:textAppearance="?attr/textAppearanceHeadline6"
                android:textSize="20sp" />

            <TextView
                android:id="@+id/illness_description"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Description"
                android:textAppearance="?attr/textAppearanceBody2"
                android:textSize="10sp" />

            <TextView
                android:id="@+id/illness_engagement"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="right"
                android:text="Engagment"
                android:textAppearance="?attr/textAppearanceBody2"
                android:textSize="10sp" />
        </LinearLayout>
    </LinearLayout>
</android.support.design.card.MaterialCardView>

 <?xml version="1.0" encoding="utf-8"?>
 <android.support.design.card.MaterialCardView 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="wrap_content"
app:cardBackgroundColor="@android:color/white"
app:cardElevation="2dp"
app:cardPreventCornerOverlap="true"
android:layout_margin="10dp">

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

    <ImageView
        android:id="@+id/illness_image"
        android:layout_width="match_parent"
        android:layout_height="364dp"
        android:background="?attr/colorPrimaryDark"
        android:scaleType="fitXY"
       />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="16dp">

        <TextView
            android:id="@+id/illness_title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Title"
            android:textAppearance="?attr/textAppearanceHeadline6"
            android:textSize="20sp" />

        <TextView
            android:id="@+id/illness_description"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Description"
            android:textAppearance="?attr/textAppearanceBody2"
            android:textSize="10sp" />

        <TextView
            android:id="@+id/illness_engagement"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="right"
            android:text="Engagment"
            android:textAppearance="?attr/textAppearanceBody2"
            android:textSize="10sp" />
    </LinearLayout>
</LinearLayout>

把这个位置

        android:scaleType="centerInside"

到您的

ImageView

<ImageView
            android:id="@+id/illness_image"
            android:layout_width="364dp"
            android:scaleType="centerInside"
            android:layout_height="364dp"
            android:background="?attr/colorPrimaryDark"
            android:cropToPadding="true" />

---

您可以按如下方式使用：-

<ImageView
       android:id="@+id/illness_image"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:scaleType="fitXY"
       android:background="?attr/colorPrimaryDark"
/>

显示xml文件..发布您的卡片视图和布局file@OliverWeidner，在

xml

上显示您的

ImageView

属性，或者在此问题中添加

ImageView

的代码。很抱歉，我插入它时遇到问题。现在它就在那里。删除这个标签，在图像视图上使用。它不工作，它显示了相同的割礼图片，但是谢谢。@OliverWidner将

线性布局的宽度更改为
android:layout\u width=“match\u parent”
它看起来更好，但整体情况还不清楚。好了，我们走吧，它就在那里！非常感谢！谢谢你，祝你也一样！：）删除android:Croptoppadding，然后重试