布局从顶部

Question

我得到了以下代码，由于某种原因，布局从顶部剪切。我没有指定任何边距或填充或任何东西，所以我很困惑为什么它这样做

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

    android:orientation="vertical">

    <Button
        android:text="Login"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="login" />

    <Button
        android:text="User information"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="userInfo" />

</LinearLayout>


@Override
protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.sample_main);
}

Style.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <style name="AppTheme" parent="@style/Theme.Leanback"></style>
</resources>

Theme.xml

<resources>

    <style name="Theme.Example.Leanback" parent="Theme.Leanback">
        <item name="android:windowEnterTransition">@android:transition/fade</item>
        <item name="android:windowExitTransition">@android:transition/fade</item>
        <item name="android:windowSharedElementExitTransition">@android:transition/move</item>
        <item name="android:windowSharedElementEnterTransition">@android:transition/move</item>
        <item name="android:windowAllowReturnTransitionOverlap">true</item>
        <item name="android:windowAllowEnterTransitionOverlap">true</item>
        <item name="android:windowContentTransitions">true</item>
        <item name="android:colorPrimary">@color/search_opaque</item>

    </style>
</resources>

Answer 1

很可能是因为您正在使用Leanback主题。你在为电视开发吗？