Android导航组件通过safeArgs和深度链接传递参数

Question

我有一个如下功能的导航xml-

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/navigation_featureB.xml"
app:startDestination="@id/FragmentB">
<fragment
android:id="@+id/FragmentB"
android:name="FragmentB"
android:label="FragmentB">
<deepLink app:uri="App://FragmentB" />
</fragment>
</navigation>

在我的FeatureA片段中，我执行以下操作-

val uri = Uri.parse("App://FragmentB")
findNavController().navigate(uri)

我知道如何在没有深度链接的情况下使用safeArgs。如何通过深度链接将数据传递给其他功能？

Answer 1

您可以执行以下

navigation.xml中的第一个添加参数

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/navigation_featureB.xml"
app:startDestination="@id/FragmentB">
<fragment
android:id="@+id/FragmentB"
android:name="FragmentB"
android:label="FragmentB">
<argument
android:name="yourarg"
android:defaultValue="Argument Default Value"/>
<deepLink app:uri="App://FragmentB/{yourarg}" />
</fragment>
</navigation>

然后你可以这样称呼它

val args = Bundle()
args.putString("yourarg", "Argument Value")
val deeplink = findNavController().createDeepLink()
.setDestination(R.id.FragmentB)
.setArguments(args)
.createPendingIntent()
val builder = NotificationCompat.Builder(
context, "deeplink")
.setContentTitle("Deep link with data")
.setContentText("Deep link with data to Android")
.setSmallIcon(R.drawable.ic_android)
.setContentIntent(deeplink)
.setAutoCancel(true)
val notificationManager =
context?.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
notificationManager.notify(0, builder.build())

已编辑

无通知

首先，在navigation.xml 中添加参数

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/navigation_featureB.xml"
app:startDestination="@id/FragmentB">
<fragment
android:id="@+id/FragmentB"
android:name="FragmentB"
android:label="FragmentB">
<argument
android:name="yourarg"
android:defaultValue="Argument Default Value"/>
<deepLink app:uri="App://FragmentB/{yourarg}" />
</fragment>
</navigation>

然后你可以这样称呼它

val uri = Uri.parse("App://FragmentB/yourarg")
findNavController().navigate(uri)

然后你可以用这个代码获得参数

val argument = arguments?.getString("yourarg")
// Or with Safe Args
val safeArgs: FragmentBArgs by navArgs()
val yourarg = safeArgs.yourarg

参考文献：https://codelabs.developers.google.com/codelabs/android-navigation#9

Answer 2

上面的答案显示了如何使用字符串数据类型。但是，如果您想传递自定义对象，安全参数也可以很好地工作；

<fragment
android:id="@+id/verification_fragment"
android:name="com.appname.ui.verification.VerificationFragment"
android:label="VerificationFragment">
<argument
android:name="verificationType"
android:defaultValue="PHONE"
app:argType="com.appname.core.model.VerificationType" />
<deepLink app:uri="android-app://com.appname/verification_fragment?verificationType={verificationType}" />
</fragment>

将自定义属性传递给deeplink；

val request = NavDeepLinkRequest.Builder
.fromUri("android-app://appname/verification_fragment?verificationType=${VerificationType.MAIL}".toUri())
.build()
findNavController().navigate(request)

从目标片段中读取属性；

private val args: VerificationFragmentArgs by navArgs()
args.verificationType