java - Android: "next"单击表单以错误的 View 结束

Question

我正在使用以下布局:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center_horizontal"
    android:gravity="center_horizontal"
    android:orientation="vertical" >
<DatePicker
        android:id="@+id/datePicker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="2dp"
        android:layout_marginTop="2dp"
        android:nextFocusRight="@+id/timePicker"
        android:nextFocusDown="@+id/timePicker" />
 <TimePicker
        android:id="@+id/timePicker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/datePicker"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="2dp"
        android:layout_marginTop="2dp"
        android:nextFocusLeft="@+id/datePicker"
        android:nextFocusUp="@+id/datePicker" />
 <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/timePicker"
        android:layout_centerHorizontal="true"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="0dp"
        android:layout_marginTop="2dp"
        android:text="@string/button1" />
</RelativeLayout>

我正在尝试使用

进入下一个 View

android:nextFocusRight="@+id/timePicker"
android:nextFocusDown="@+id/timePicker"

但这行不通。当我在 DatePicker 中启动并单击“下一步”时，我得到了错误的 View ，并且具有正常的键盘布局。

有人可以帮忙吗？

Answer 1

我相信您需要做的就是将以下内容添加到您想要聚焦的所有 View 中:

android:focusable="true"

<小时/>

每Documentation :

Focus Handling

The framework will handle routine focus movement in response to user input. This includes changing the focus as views are removed or hidden, or as new views become available. Views indicate their willingness to take focus through the isFocusable() method.

<小时/>

isFocusable()

Returns whether this View is able to take focus.

Related XML Attributes
android:focusable

Returns
True if this view can take focus, or false otherwise.