android:descendantFocusability
Defines the relationship between the ViewGroup and its descendants when looking for a View to take focus.
Must be one of the following constant values.
| Constant | Value | Description |
|---|---|---|
beforeDescendants | 0 | The ViewGroup will get focus before any of its descendants. |
afterDescendants | 1 | The ViewGroup will get focus only if none of its descendants want it. |
blocksDescendants | 2 | The ViewGroup will block its descendants from receiving focus. |
解决方案
在ListView要显示的Item的外层加上
android:descendantFocusability="blocksDescendants"这段代码
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:descendantFocusability="blocksDescendants">
<TextView
android:id="@+id/checkinfo_item_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_gravity="left"
android:textColor="@android:color/black"
android:textSize="25sp" />
<Spinner
android:id="@+id/checkinfo_item_value"
style="@style/SpinnerAsEditText"
android:layout_width="125dip"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:focusable="false" />
</RelativeLayout>
本文介绍如何在ListView中通过设置descendantFocusability属性来控制焦点分配,确保ListView及其子项间的合理交互。通过实例演示,具体展示了如何在特定组件上应用此属性以实现焦点优先级的调整。
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