如果有足够的空间,请在布局中心查看

Question

我有一个布局,需要将其中一个视图放在中心.这很简单.问题是我还有一些其他视图需要定位到屏幕顶部.

问题:如果有足够的空间,它看起来没问题,但是当屏幕太小时,顶部和中心元素重叠.

问题:如果屏幕很小,如何将"居中"元素按下？

原来的布局非常复杂,我准备了一个例子:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<TextView
    android:id="@+id/theOneAtTheTop"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Some long text which may overlap the lower view. Some long text which may overlap the lower view."
    android:layout_alignParentTop="true"
    />


<TextView
    android:id="@+id/theOneInTheMiddlep"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Some long text which may overlap the upper view. Some long text which may overlap the upper view. "
    android:layout_centerInParent="true"
    />


</RelativeLayout>

这是一个小模拟.中间的图片显示了它在小屏幕上的外观,并且两侧的图片显示了所需的情况.

Answer 1

好吧，我要彻底改变这个答案。如果所需的对齐方式是垂直的，您可以将代码放入relativelayout中，它将_fill_parent_并且位于OneAtTheTop下方。在其中，您可以放置​​想要垂直居中对齐的视图。

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/theOneAtTheTop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:text="Some long text which may overlap the lower view. Some long text which may overlap the lower view." />

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:layout_below="@+id/theOneAtTheTop" >

        <TextView
            android:id="@+id/theOneInTheMiddlep"
            android:layout_width="200sp"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:text="Some long text which may overlap the upper view. long text which may overlap the upper view. Some long text which may overlap the upper view.  " />
    </RelativeLayout>

</RelativeLayout>

希望能帮助到你