Question

我正面临这个问题，我想在第一张照片的特定位置替换CoordinatorLayout中的CardView

但是当我使用layout_gravity= "center"将CardView居中时，视图将像第二张照片我需要像第一张照片一样定位卡片视图..我怎么能这样做？这是我的代码

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/bgColorPrimaryBlue"
    android:orientation="vertical"
    tools:context="****">
    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="250dp">
        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapse_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@drawable/gradiant_background"
            app:collapsedTitleGravity="center"
            app:contentScrim="?attr/colorPrimary"
            app:layout_scrollFlags="exitUntilCollapsed|scroll">
            <de.hdodenhof.circleimageview.CircleImageView
                android:id="@+id/profile_image"
                android:layout_width="@dimen/profile_image_height"
                android:layout_height="@dimen/profile_image_height"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="20dp"
                android:src="@drawable/worker"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.7" />
            <TextView
                android:id="@+id/user_name"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:fontFamily="@font/el_messiri"
                android:paddingTop="140dp"
                android:text="User name"
                android:textSize="25sp"
                android:textStyle="bold"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.7" />
            <TextView
                android:id="@+id/user_job"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:fontFamily="@font/el_messiri"
                android:paddingTop="175dp"
                android:text="Desc"
                android:textSize="20sp"
                android:textStyle="bold"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.7" />
            <android.support.v7.widget.Toolbar
                android:id="@+id/profile_toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:theme="@style/Base.ThemeOverlay.AppCompat.Light"
                app:layout_collapseMode="pin" />
        </android.support.design.widget.CollapsingToolbarLayout>
    </android.support.design.widget.AppBarLayout>
    <android.support.v7.widget.CardView
        android:layout_width="300dp"
        android:layout_height="70dp"
        android:layout_gravity="center"
        app:cardBackgroundColor="@color/bgColorPrimaryBlue">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            android:weightSum="3">
            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:gravity="center"
                android:orientation="vertical">
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:drawableTop="@drawable/ic_thumb_up_black"
                    android:text="123"
                    android:textColor="@color/colorPrimaryBlue"
                    android:textSize="30sp" />
            </LinearLayout>
            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:gravity="center"
                android:orientation="vertical">
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                 android:drawableTop="@drawable/ic_thumb_down_black_24px"
                    android:text="123"
                    android:textColor="@color/colorPrimaryBlue"
                    android:textSize="30sp" />
            </LinearLayout>
            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:gravity="center"
                android:orientation="vertical">
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:drawableTop="@drawable/ic_block_black_24px"
                    android:text="123"
                    android:textColor="@color/colorPrimaryBlue"
                    android:textSize="30sp" />
            </LinearLayout>
        </LinearLayout>
    </android.support.v7.widget.CardView>
</android.support.design.widget.CoordinatorLayout>

提前致谢

Answer 1

试试这个

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorAccent"
    android:orientation="vertical">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="250dp">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapse_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:collapsedTitleGravity="center"
            app:contentScrim="?attr/colorPrimary"
            app:layout_scrollFlags="exitUntilCollapsed|scroll">

            <de.hdodenhof.circleimageview.CircleImageView
                android:id="@+id/profile_image"
                android:layout_width="96dp"
                android:layout_height="96dp"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="20dp"
                android:src="@drawable/abc"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.7" />

            <TextView
                android:id="@+id/user_name"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:paddingTop="140dp"
                android:text="User name"
                android:textSize="25sp"
                android:textStyle="bold"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.7" />

            <TextView
                android:id="@+id/user_job"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:paddingTop="175dp"
                android:text="Desc"
                android:textSize="20sp"
                android:textStyle="bold"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.7" />

            <android.support.v7.widget.Toolbar
                android:id="@+id/profile_toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:theme="@style/Base.ThemeOverlay.AppCompat.Light"
                app:layout_collapseMode="pin" />
        </android.support.design.widget.CollapsingToolbarLayout>
    </android.support.design.widget.AppBarLayout>

    <android.support.v7.widget.CardView
        android:layout_width="300dp"
        android:layout_height="70dp"
        android:layout_gravity="center"
        android:layout_marginTop="220dp"
        app:cardBackgroundColor="@color/colorPrimaryDark"
        app:layout_anchor="@id/appbar"
        app:layout_anchorGravity="center">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            android:weightSum="3">

            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:gravity="center"
                android:orientation="vertical">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:drawableTop="@drawable/ic_launcher_background"
                    android:text="123"
                    android:textColor="@color/colorPrimaryDark"
                    android:textSize="30sp" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:gravity="center"
                android:orientation="vertical">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:drawableTop="@drawable/ic_launcher_background"
                    android:text="123"
                    android:textColor="@color/colorPrimaryDark"
                    android:textSize="30sp" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:gravity="center"
                android:orientation="vertical">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:drawableTop="@drawable/ic_launcher_background"
                    android:text="123"
                    android:textColor="@color/colorPrimaryDark"
                    android:textSize="30sp" />
            </LinearLayout>
        </LinearLayout>
    </android.support.v7.widget.CardView>
</android.support.design.widget.CoordinatorLayout>

<强>输出

Answer 2

我通过在nestedScrollView

中使用上限值的减值来解决问题

<android.support.v4.widget.NestedScrollView
    android:id="@+id/nested_scroll"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="-35dp"
    app:layout_anchorGravity="top"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

    <!--CardView and all of it's childs-->

</android.support.v4.widget.NestedScrollView>

使用此

以编程方式对卡片视图进行居中

DisplayMetrics displayMetrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
    int width = displayMetrics.widthPixels;
    final int cardMarginLeft = (width - cardView.getLayoutParams().width) / 2;
    ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) cardView.getLayoutParams();
    layoutParams.leftMargin = cardMarginLeft;

可能有更好的方法来解决这个问题......但这个方法对我有用。

如何用CollapsingToolbar替换CoordinatorLayout中的CardView？

2 个答案: