Question

在CoordinatorLayout（root）下面有一个估计56dp的空白，如图所示。但是，只有在排除故障时出现AppbarLayout时才会出现这种情况。

我不知道如何修复它我试过fitSystemWindows="true"但这不起作用。为什么这样做？（如果我没有意义，请说）

这是我的布局代码。

<?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:fitsSystemWindows="false">

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="56dp">

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

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"></android.support.v7.widget.Toolbar>
    </android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

<android.support.v4.widget.NestedScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="fill_vertical"
    android:background="@color/colorS50Alpha"
    android:clipToPadding="false"
    app:layout_behavior="android.support.design.widget.AppBarLayout$ScrollingViewBehavior">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/toolbar5"
        android:layout_centerHorizontal="true"
        android:layout_gravity="fill_vertical"
        android:fillViewport="false">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="fill_vertical"
            android:orientation="vertical">

            <android.support.constraint.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="fill_vertical">

                <android.support.v7.widget.RecyclerView
                    android:id="@+id/lvProfilePosts"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_below="@+id/tbProfiletabs"
                    android:visibility="visible"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintHorizontal_bias="0.0"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/tbProfiletabs"
                    app:layout_constraintVertical_bias="0.0" />

                <android.support.design.widget.TabLayout
                    android:id="@+id/tbProfiletabs"
                    android:layout_width="0dp"
                    android:layout_height="50dp"
                    android:layout_alignParentBottom="true"
                    android:layout_alignParentStart="true"
                    android:layout_marginBottom="283dp"
                    android:background="@color/colorS50Alpha"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintHorizontal_bias="0.0"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/relativeLayout5"
                    app:layout_constraintVertical_bias="0.0"
                    app:tabSelectedTextColor="@android:color/white"
                    app:tabTextColor="@color/colorSearch">

                    <android.support.design.widget.TabItem
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="Left" />

                    <android.support.design.widget.TabItem
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="Center" />

                </android.support.design.widget.TabLayout>

                <ImageView
                    android:id="@+id/ivProfileBackphoto"
                    android:layout_width="0dp"
                    android:layout_height="320dp"
                    android:background="@drawable/background_signinandregister"
                    android:scaleType="centerCrop"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintHorizontal_bias="0.0"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintVertical_bias="0.0"
                    app:srcCompat="@color/colorProfileBack" />

                <RelativeLayout
                    android:id="@+id/relativeLayout5"
                    android:layout_width="0dp"
                    android:layout_height="150dp"
                    android:background="@drawable/shadow_profile_01"
                    app:layout_constraintBottom_toBottomOf="@+id/ivProfileBackphoto"
                    app:layout_constraintHorizontal_bias="0.0"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintVertical_bias="1.0">

                </RelativeLayout>

                <de.hdodenhof.circleimageview.CircleImageView
                    android:id="@+id/ivProfilephoto"
                    android:layout_width="160dp"
                    android:layout_height="160dp"
                    android:layout_marginBottom="8dp"
                    android:layout_marginTop="8dp"
                    android:scaleType="centerCrop"
                    app:layout_constraintBottom_toBottomOf="@+id/ivProfileBackphoto"
                    app:layout_constraintHorizontal_bias="0.498"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintVertical_bias="0.361" />

                <TextView
                    android:id="@+id/tvName"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="8dp"
                    android:layout_marginTop="8dp"
                    android:fontFamily="sans-serif"
                    android:text="Foster The People"
                    android:textAppearance="@style/TextAppearance.AppCompat"
                    android:textColor="@android:color/white"
                    android:textSize="30sp"
                    app:layout_constraintBottom_toBottomOf="@+id/ivProfileBackphoto"
                    app:layout_constraintHorizontal_bias="0.497"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/ivProfilephoto"
                    app:layout_constraintVertical_bias="0.0" />

                <TextView
                    android:id="@+id/tvDescription"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="8dp"
                    android:layout_marginEnd="40dp"
                    android:layout_marginLeft="40dp"
                    android:layout_marginRight="40dp"
                    android:layout_marginStart="40dp"
                    android:layout_marginTop="1dp"
                    android:text="I like bacon and cheese sandwiches"
                    android:textAlignment="center"
                    android:textColor="@color/colorGrey"
                    android:textSize="16sp"
                    app:layout_constraintBottom_toBottomOf="@+id/ivProfileBackphoto"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/tvName"
                    app:layout_constraintVertical_bias="0.0" />

                <ImageView
                    android:id="@+id/ivAddFriend"
                    android:layout_width="60dp"
                    android:layout_height="60dp"
                    android:layout_marginBottom="8dp"
                    android:layout_marginEnd="8dp"
                    android:layout_marginLeft="8dp"
                    android:layout_marginRight="8dp"
                    android:layout_marginStart="8dp"
                    android:layout_marginTop="8dp"
                    app:layout_constraintBottom_toBottomOf="@+id/relativeLayout5"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toLeftOf="@+id/ivProfilephoto"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintVertical_bias="0.418"
                    app:srcCompat="@drawable/addfriend02" />

                <ImageView
                    android:id="@+id/ivRemoveFriend"
                    android:layout_width="60dp"
                    android:layout_height="60dp"
                    android:layout_marginBottom="8dp"
                    android:layout_marginEnd="8dp"
                    android:layout_marginLeft="8dp"
                    android:layout_marginRight="8dp"
                    android:layout_marginStart="8dp"
                    android:layout_marginTop="8dp"
                    app:layout_constraintBottom_toBottomOf="@+id/relativeLayout5"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toLeftOf="@+id/ivProfilephoto"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintVertical_bias="0.418"
                    app:srcCompat="@drawable/removefriend02" />

            </android.support.constraint.ConstraintLayout>
        </LinearLayout>
    </ScrollView>
</android.support.v4.widget.NestedScrollView>

我不知道如何进一步详细说明。任何帮助表示赞赏。

Answer 1

设置

android:fillViewport="false"到true 在Scrollview中

并删除此

 app:layout_scrollFlags="scroll|exitUntilCollapsed"

如果您不想滚动工具栏和滚动视图。

根CoordinatorLayout

1 个答案: