ViewPager内部的一部分片段在屏幕底部被截断(Android) [英] Part of fragment inside ViewPager getting cut off at bottom of screen(Android)

问题描述

我已经为视图定义了基本的协调器布局:

I have defined a basic Coordinator layout for my view:

<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:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

        <android.support.design.widget.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabIndicatorColor="@color/white"
            app:tabMode="fixed"/>
    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />

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

我的视图寻呼机中有多个选项卡.我正在发布我的一个简单片段之一:

There are multiple tabs in my view pager. I am posting one of my simple fragments:

<ListView
    android:id="@+id/transferList"
    android:layout_width="match_parent"
    android:layout_height="match_parent"></ListView>

<android.support.design.widget.FloatingActionButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_marginBottom="@dimen/activity_vertical_margin"
    android:layout_marginRight="@dimen/activity_horizontal_margin"
    android:layout_alignParentRight="true"
    android:src="@drawable/ic_add_white" />

发生的情况是FAB超出了屏幕.它不是FAB，但其他具有cardviews/listviews的片段在屏幕底部被切断.我四处寻找解决方案，并提出了一个有问题的解决方案:从工具栏中删除属性app:layout_scrollFlags ="scroll | enterAlways" .

What happens is that the FAB goes out of screen. It's just not the FAB, but other fragments with cardviews/listviews are getting cut off at the bottom of the screen. I looked around for a solution, and came up with a hacky solution: Removing the property app:layout_scrollFlags="scroll|enterAlways" from the Toolbar.

我不知道是什么原因导致了这种情况的发生，以及删除上述内容如何解决该问题.支持库中有一些错误吗?有没有更好的方法来解决这个问题?我遇到的另一个解决方案是从此处-将FAB按钮保持在活动中协调器"布局的正下方，并使它仅在您需要的片段中可见.对我来说似乎不是一个很好的解决方案.另外，我片段中的其他视图也被截断了.

I can't understand what might be causing this to happen, and how removing the above solved the problem. Is it some bug in the support library? Is there a better way to solve this? Another solution I had come across is from here - to keep the FAB button directly under a Coordinator layout in the activity, and make it visible only in the fragment you need. Did not seem like a good solution to me. Also, other views in my fragments were also getting cut off.

推荐答案

这是因为您将CoordinatorLayout与ListView一起使用.您可以将实现更改为RecyclerView以实现正确的滚动.

This is because you are using CoordinatorLayout with ListView. You can change your implementation to RecyclerView to achieve correct scroll.

在此处.这可能会对您有所帮助.

check my answer here. This may help you.

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