Android HorizontalScrollView 设置默认位置为第二个
时间: 2024-09-27 07:02:22 浏览: 41
在Android中,HorizontalScrollView通常用于显示一排可以水平滑动的内容。如果你想让其默认显示在第二个视图上,而不是第一个,你可以通过设置`android:scrollX`属性来实现。首先,你需要获取到HorizontalScrollView的ViewGroup或LinearLayout,并找到第二个子View的位置,然后设置这个偏移量。
例如,在XML布局文件中,假设`horizontalscrollView`是你想要控制的HorizontalScrollView,而`child_view1`和`child_view2`是它的两个子View:
```xml
<HorizontalScrollView
android:id="@+id/horizontalscrollView"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="@+id/child_view1"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent" />
<View
android:id="@+id/child_view2"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent" />
<!-- 添加更多视图... -->
</LinearLayout>
</HorizontalScrollView>
```
然后在Java或Kotlin代码中,找到第二个View并设置滚动位置:
```java
HorizontalScrollView scrollView = findViewById(R.id.horizontalscrollView);
View secondChild = findViewById(R.id.child_view2);
int offset = (scrollView.getWidth() - secondChild.getWidth()) / 2; // 计算从左边缘开始的距离
scrollView.scrollTo(0, secondChild.getTop()); // 设置滚动位置
scrollView.smoothScrollTo(0, secondChild.getTop() + offset); // 平滑滚动到指定位置
```
阅读全文
相关推荐













