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android - 将 Grid View 添加到 ScrollView 时的额外空间

转载 作者:数据小太阳 更新时间:2023-10-29 02:34:46 26 4
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我正在使用 ScrollView 内的 GridView(我知道不好的做法,但要求仅如此)。问题是它们在 GridView 的末尾出现了不需要的额外垂直空间。我还通过这段代码动态设置 GridView 的高度。

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

int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(), View.MeasureSpec.UNSPECIFIED);
int totalHeight = 0;
View view = null;
for (int i = 0; i < listAdapter.getCount(); i++) {
view = listAdapter.getView(i, view, listView);
view.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);
totalHeight += view.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight;
listView.setLayoutParams(params);
listView.requestLayout();
}

我的xml是这样的

<RelativeLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">

<include
android:id="@+id/header_section"
layout="@layout/header_screen" />


<ScrollView
android:id="@+id/parent_scroll"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/white"
android:layout_alignWithParentIfMissing="false"

android:layout_below="@+id/header_section">

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


<FrameLayout
android:id="@+id/frame"
android:layout_width="match_parent"
android:layout_height="200dp" />





<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:dividerHeight="1dp"
></ListView>

<TextView
android:id="@+id/more"
android:layout_width="match_parent"
android:layout_height="20dp"
android:background="@android:color/darker_gray"
android:gravity="center"
android:textColor="@android:color/white"
android:textSize="14sp"
android:visibility="gone" />

<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@android:color/darker_gray" />

<RelativeLayout
android:id="@+id/layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>

<TextView
android:id="@+id/txt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="3dp"

android:textColor="@android:color/black"
android:textSize="14sp" />

<ImageView
android:id="@+id/icon"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_below="@+id/txt"
android:scaleType="fitXY"
android:layout_margin="5dp"
/>

<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/txt"
android:layout_margin="5dp"
android:layout_marginLeft="3dp"
android:layout_toRightOf="@+id/icon"
android:textColor="@android:color/black"
android:textSize="14sp" />

<TextView
android:id="@+id/demo_demo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/name"
android:layout_marginBottom="3dp"
android:layout_marginLeft="5dp"
android:layout_toRightOf="@+id/icon"
android:textColor="@android:color/black"
android:textSize="12sp" />
</RelativeLayout>

<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@android:color/darker_gray" />

<GridView
android:id="@+id/items_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:numColumns="2" />

</LinearLayout>
</ScrollView>
</RelativeLayout>

<include layout="@layout/nav_drawer" />

最佳答案

根据 GridView 中的列数进行递增,这里我假设列数为 2,因此只需在循环中递增 +2

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

int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(), View.MeasureSpec.UNSPECIFIED);
int totalHeight = 0;
View view = null;
for (int i = 0; i < listAdapter.getCount(); i = i+2) {
view = listAdapter.getView(i, view, listView);
view.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);
totalHeight += view.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight;
listView.setLayoutParams(params);
listView.requestLayout();
}

关于android - 将 Grid View 添加到 ScrollView 时的额外空间,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30044283/

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