Question

我正在努力创建与Constraint一起折叠的图像标题，我的设计看起来像这样

目前，个人资料图片是ConstraintLayout的一部分，因为它需要指南约束，不幸的是它与AppBarLayout重叠

任何想法如何实现？找不到关于我的布局组合的任何来源.....

<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/playerViewBg"
        android:fitsSystemWindows="false">

        <android.support.design.widget.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <ImageView
                android:id="@+id/bgIV"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerHorizontal="true"
                android:adjustViewBounds="true"
                android:scaleType="centerCrop"
                android:src="@drawable/header_bg" />

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

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

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

        <ImageView
            android:id="@+id/playerIV"
            android:layout_width="177dp"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_marginTop="62dp"
            android:adjustViewBounds="true"
            android:scaleType="fitCenter"
            android:src="@drawable/profilePic"
            app:layout_constraintEnd_toStartOf="@+id/guideline2"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintStart_toStartOf="@+id/guideline"
            app:layout_constraintTop_toTopOf="parent" />

        <!-- Other content -->

        <android.support.constraint.Guideline
            android:id="@+id/guideline"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.27" />

          <android.support.constraint.Guideline
            android:id="@+id/guideline2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.73" />

    </android.support.constraint.ConstraintLayout>

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

Answer 1

Following is the snippet of my working layout:
    Please make sure that you haven't make any childview height to match parent(0 dp) inside constrianlayout also for scroll view **android:fillViewport="true**;Ask me if any doubt Occur.

<android.support.design.widget.CoordinatorLayout
    android:id="@+id/coordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorPrimary"
        android:fitsSystemWindows="false">

        <android.support.design.widget.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <ImageView
                android:id="@+id/ivImagec"
                android:layout_width="wrap_content"
                android:layout_height="@dimen/_90sdp"
                android:contentDescription="@string/no_des"
                android:scaleType="centerCrop"
                app:srcCompat="@drawable/outdoorgames" />


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

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

    <android.support.v4.widget.NestedScrollView
        android:id="@+id/scroll_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="@dimen/_90sdp"
        android:fillViewport="true">

        <android.support.constraint.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:id="@+id/cvLayout"
            android:animateLayoutChanges="true">
...chid views
        </android.support.constraint.ConstraintLayout

Answer 2

我实际上最近开始考虑这个

基于Android Studio背后的两个开发人员的讨论： https://www.youtube.com/watch?v=8lAXJ5NFXTM（21分钟：28秒标记）

绝对可以，他们建议使用ConstraintLayout完全替换CollapsingToolbarLayout。

折叠工具栏布局和约束布局

2 个答案: