Android-无法将textview置于framelayout下方

问题描述

我在LinearLayout中有一个TextView和FrameLayout.我无法将TextView放在框架布局下方，而是一直停留在顶部.

I have a TextView and FrameLayout inside a LinearLayout.I can't make the TextView below the framelayout, it keeps staying at the top.

这是我的代码:

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

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="bottom"
        android:text="TextView" />

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

        <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

        <ImageButton
            android:id="@+id/btnGoToTop"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center|bottom"
            android:layout_margin="5dip"
            android:background="@drawable/buttongototop"
            android:padding="5dip"
            android:visibility="gone" />
    </FrameLayout>

</LinearLayout>

推荐答案

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

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">

        <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

        <ImageButton
            android:id="@+id/btnGoToTop"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center|bottom"
            android:layout_margin="5dip"
            android:background="@drawable/buttongototop"
            android:padding="5dip"
            android:visibility="gone" />
    </FrameLayout>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="bottom"
        android:text="TextView" />

</LinearLayout>

请注意FrameLayout的layout_weight和layout_height.如果您将高度保持在match_parent位置，它将适合整个屏幕，将TextView 紧靠在屏幕末端之后.

Pay attention to the FrameLayout's layout_weight and layout_height. If you kept the height with match_parent, it would fit the whole screen, positioning the TextView right after the end of the screen.

在LinearLayout s中检查有关 layout_weight的链接.

Check this link about layout_weight in LinearLayouts.

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