Question

我正尝试自定义SaulMM的CoordinatorBehaviorExample提供的折叠工具栏，就像我在下面所做的那样。

我目前在这里面临的问题是：

1。CircleImageView，即使我使用了bringToFront，setTranslationZ和setElevation之类的方法，它仍然位于TextView下。

Toolbar设置在适当位置并可见时，我期望从NestedScrollView底部开始的Toolbar最终会重叠。我添加了marginTop，但留有空白。

这是我的XML代码：

    <?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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
    android:id="@+id/linearLayout"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="35dp"
        android:background="@android:color/holo_blue_dark"
        android:gravity="center"
        android:text="STATUS BAR"
        android:textColor="@android:color/white" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="@android:color/holo_blue_light"
        android:gravity="center"
        android:text="MEMBERS"
        android:textColor="@android:color/white"
        android:textSize="25sp" />

</LinearLayout>


<android.support.design.widget.CoordinatorLayout

    android:id="@+id/coordinatorLayout"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@id/linearLayout">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/main.appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/transparent">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/main.collapsing"
            android:layout_width="match_parent"
            android:layout_height="300dp"
            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">

            <FrameLayout
                android:id="@+id/main.framelayout.title"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom"

                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.3">

                <LinearLayout
                    android:id="@+id/main.linearlayout.title"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:orientation="vertical"
                    android:paddingTop="55dp">

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_horizontal"
                        android:gravity="bottom|center"
                        android:text="@string/quila_name"
                        android:textAllCaps="true"
                        android:textSize="30sp" />

                    <TextView
                        android:id="@+id/textView5"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_horizontal"
                        android:layout_marginBottom="4dp"
                        android:layout_marginTop="4dp"
                        android:background="@drawable/border"
                        android:padding="15dp"
                        android:text="@string/lorem_short" />

                </LinearLayout>
            </FrameLayout>

        </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:fillViewport="true"
        android:scrollbars="none"
        android:background="#AAAAAA"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

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

            <TextView
                android:layout_width="0dp"
                android:layout_height="0dp"
                android:text="@string/lorem"
                android:textSize="20sp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

        </android.support.constraint.ConstraintLayout>

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


    <android.support.v7.widget.Toolbar
        android:id="@+id/main.toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="@color/transparent_black"
        android:visibility="invisible"
        app:layout_anchor="@id/main.framelayout.title"
        app:title="">

        <TextView
            android:id="@+id/main.textview.title"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:text="@string/quila_name2"
            android:textColor="@android:color/white"
            android:textSize="30sp" />

    </android.support.v7.widget.Toolbar>

    <de.hdodenhof.circleimageview.CircleImageView
        android:id="@+id/circleImageView"
        android:layout_width="@dimen/image_width"
        android:layout_height="@dimen/image_width"
        android:layout_gravity="center_horizontal"
        android:src="@drawable/quila"
        app:civ_border_color="@android:color/holo_blue_dark"
        app:civ_border_width="2dp"
        app:finalHeight="@dimen/image_final_width"
        app:finalYPosition="2dp"
        app:layout_behavior="saulmm.myapplication.AvatarImageBehavior"
        app:startHeight="2dp"
        app:startToolbarPosition="2dp"
        app:startXPosition="2dp" />

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

自定义折叠工具栏的几个问题

0 个答案: