Android 在运行时更改ListView高度

我试图在UI的底部实现一个嵌套的ListView，但是只有一个数组项填充了屏幕。我发现，如果我设置了高度属性（即“175dp”而不是“Wrap_Content”），我就可以显示我的所有项目。问题是列表大小不是静态的，所以我需要在运行时调整ListView的高度

我已经在互联网和StackOverflow上搜索过了，但似乎找不到解决办法

谢谢

我的片段中的代码：

for (int i = 0; i < values.length; ++i) {
    list.add(values[i]);
}

final StableArrayAdapter adapter = new StableArrayAdapter(rootView.getContext(),
        android.R.layout.simple_list_item_1, list);
LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) rootView.findViewById(R.id.list_linear).getLayoutParams();
LinearLayout manager = (LinearLayout) rootView.findViewById(R.id.list_linear);
lp.height = 45 * values.length;
manager.setLayoutParams(lp);

listView.setAdapter(adapter);

for（int i=0；i

我的XML：

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#BBDEFB"
android:padding="3dp"
android:id="@+id/movie_description_container">

<ImageView
    android:layout_width="match_parent"
    android:layout_height="225dp"
    android:id="@+id/movie_detail_hero_image"
    android:layout_alignParentStart="true"
    android:layout_alignParentLeft="true"
    android:gravity="top"
    android:src="@drawable/sample_1"/>

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="movie title"
    android:id="@+id/movie_detail_title"
    android:layout_alignBottom="@+id/movie_detail_hero_image"
    android:backgroundTint="@color/background_floating_material_dark"
    android:textSize="36dp"
    android:textColor="#BBDEFB"
    android:background="#a3000000"
    android:layout_above="@id/movie_detail_hero_image"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_marginLeft="3dp"
    android:layout_marginRight="3dp"
    android:paddingLeft="18dp"/>

<ImageView
    android:layout_width="175dp"
    android:layout_height="215dp"
    android:id="@+id/movie_detail_poster"
    android:src="@drawable/sample_0"
    android:layout_below="@+id/movie_detail_title"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_margin="12dp"
    android:gravity="left"/>

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:text="date"
    android:textSize="22dp"
    android:id="@+id/movie_detail_date"
    android:layout_centerVertical="true"
    android:layout_below="@id/movie_detail_hero_image"
    android:layout_alignRight="@+id/movie_detail_hero_image"
    android:layout_marginRight="12dp"
    android:layout_marginTop="32dp"/>

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:text="Rating:"
    android:textSize="22dp"
    android:id="@+id/movie_detail_rating"
    android:layout_below="@+id/movie_detail_date"
    android:layout_alignRight="@+id/movie_detail_date"
    android:layout_alignEnd="@+id/movie_detail_date"
    android:layout_marginTop="6dp" />

<RatingBar
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/ratingBar"
    android:numStars="4"
    android:nestedScrollingEnabled="true"
    android:maxWidth="77dp"
    android:layout_below="@+id/movie_detail_rating"
    android:layout_alignRight="@+id/movie_detail_rating"
    android:layout_alignEnd="@+id/movie_detail_rating"
    android:layout_marginTop="3dp"/>

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="Synopsis"
    android:id="@+id/movie_detail_synopsis_header"
    android:layout_below="@+id/movie_detail_poster"
    android:layout_alignLeft="@+id/movie_detail_poster"
    android:layout_alignStart="@+id/movie_detail_poster" />

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:text="description"
    android:id="@+id/movie_detail_synopsis"
    android:layout_below="@+id/movie_detail_synopsis_header"
    android:layout_alignLeft="@+id/movie_detail_synopsis_header"
    android:layout_alignStart="@+id/movie_detail_synopsis_header"
    android:layout_margin="6dp"/>

<ImageButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/imageButton_Favorite"
    android:layout_below="@+id/ratingBar"
    android:layout_alignRight="@+id/ratingBar"
    android:src="@drawable/ic_favorite_white_24dp"
    android:maxWidth="45dp"
    android:maxHeight="45dp"
    />

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/list_linear"
    android:layout_below="@id/movie_detail_synopsis">
    <ListView
        android:layout_width="match_parent"
        android:layout_height="45dp"

        android:id="@+id/list_view2"/>
</LinearLayout>

---

实际上，您可以使用此方法将listview的高度设置为childers的大小

public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null)
        return;

    int desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(),
            MeasureSpec.UNSPECIFIED);
    int totalHeight = 0;
    View view = null;
    for (int i = 0; i < listAdapter.getCount(); i++) {
        view = listAdapter.getView(i, view, listView);
        if (i == 0)
            view.setLayoutParams(new ViewGroup.LayoutParams(desiredWidth,
                    LayoutParams.WRAP_CONTENT));

        view.measure(desiredWidth, MeasureSpec.UNSPECIFIED);
        totalHeight += view.getMeasuredHeight();
    }
    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight
            + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
}

public static void setListViewHeightBasedOnChildren（ListView ListView）{
ListAdapter ListAdapter=listView.getAdapter（）；
如果（listAdapter==null）
返回；
int desiredWidth=MeasureSpec.makeMeasureSpec（listView.getWidth（），
测量（未指定）；
int totalHeight=0；
视图=空；
对于（int i=0；i

实际上，您可以使用此方法将listview的高度设置为childers的大小

public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null)
        return;

    int desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(),
            MeasureSpec.UNSPECIFIED);
    int totalHeight = 0;
    View view = null;
    for (int i = 0; i < listAdapter.getCount(); i++) {
        view = listAdapter.getView(i, view, listView);
        if (i == 0)
            view.setLayoutParams(new ViewGroup.LayoutParams(desiredWidth,
                    LayoutParams.WRAP_CONTENT));

        view.measure(desiredWidth, MeasureSpec.UNSPECIFIED);
        totalHeight += view.getMeasuredHeight();
    }
    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight
            + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
}

public static void setListViewHeightBasedOnChildren（ListView ListView）{
ListAdapter ListAdapter=listView.getAdapter（）；
如果（listAdapter==null）
返回；
int desiredWidth=MeasureSpec.makeMeasureSpec（listView.getWidth（），
测量（未指定）；
int totalHeight=0；
视图=空；
对于（int i=0；i

您尚未为包含列表视图的线性布局设置方向。默认值为水平。此外，列表视图是可滚动的。您不必将列表放得更高，以便为更多项目腾出空间。您没有为包含列表视图的LinearLayout设置方向。默认值为水平。此外，列表视图是可滚动的。你不必为了给更多的物品腾出空间而把清单列得更高。