使surfaceView全屏显示

Question

我有一个可以播放直播视频的表面视图。我需要它在变成横向时全屏显示。我有一个带有片段的活动，其中包含表面视图和显示其他实时流的网格视图。这是片段的布局 -

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1"
 >

<RelativeLayout
    android:id="@+id/guiLayout"
    android:layout_width="fill_parent"
    android:layout_height="match_parent"
    android:background="#000"
    android:orientation="vertical"
    android:layout_weight="0.6">
    <FrameLayout
        android:id="@+id/videoLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:layout_margin="0dp">

        <SurfaceView
            android:id="@+id/videoView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="center"
            android:visibility="visible">
        </SurfaceView>

    </FrameLayout>


</RelativeLayout>
<RelativeLayout
    android:id="@+id/layoutGrid"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="0.4"
    android:background="@android:color/white">
    <GridView
        android:id="@+id/gridView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:horizontalSpacing="2dp"
        android:isScrollContainer="false"
        android:numColumns="3"
        android:stretchMode="columnWidth"
        android:verticalSpacing="2dp"
        android:background="@color/transparent"
        android:layout_gravity="center_horizontal|bottom" />


</RelativeLayout>

所以我在activity中的onConfigChanged调用了super onConfigChanged，然后调用了fragments的onRotate方法，传递给它newConfig——

 public void onRotate(Configuration newConfig)
{
    if(newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE)
    {
        Log.e(TAG, "CHANGING");
        getView().findViewById(R.id.guiLayout).setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT)); 
        if(gridView != null)
            gridView.setVisibility(View.GONE);

        getView().findViewById(R.id.layoutGrid).setVisibility(View.GONE);


    }
    else
    {
        Log.e(TAG, "CHANGING PORTRAIT");

        getView().findViewById(R.id.guiLayout).setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.MATCH_PARENT ,0.6f));

        if(gridView != null)
            gridView.setVisibility(View.VISIBLE);
        else
            gridView = (GridView) getView().findViewById(R.id.gridView);


    }

这个想法是，如果我将我的 guiLayout 调整为全屏，它的子元素应该更改为适合，因为它们被设置为 MATCH_PARENT。但事实并非如此，guilayout 调整为全屏，但子项仍占原始重量的 40%。我尝试了很多不同的方法来让孩子们匹配他们的父母，但都没有奏效。任何关于我做错了什么的建议将不胜感激。

Answer 1

到全屏：

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
getSupportActionBar().hide();
videoLayout.setBackgroundColor(Color.BLACK);

DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);

ViewGroup.LayoutParams videoLayoutParams = videoLayout.getLayoutParams();
videoLayoutParams.width = displayMetrics.widthPixels;
videoLayoutParams.height = displayMetrics.heightPixels;

ViewGroup.LayoutParams videoParams = videoView.getLayoutParams();
videoParams.width = displayMetrics.widthPixels;
videoParams.height = displayMetrics.heightPixels;