无法在 android Q 中从 Google Nearby Connections API 访问下载的文件

问题描述

在 android Q 中，Payload.File.asJavaFile() 返回 null。尝试使用以下方法访问文件时出现异常。他们说在文档中使用 Payload.asFile().asUri() ，但是 asUri() 不再存在于库中。我正在使用 Google 附近连接 api 的 17.0.0 版

我的代码

override fun save(data: Payload) {
  val input = FileInputStream(data.asFile()!!.asParcelFileDescriptor().fileDescriptor));

File copy = File(context.getFilesDir(),"copy".jpg);
val out = new FileOutputStream(copy)
//using kotlin extension
input.copyTo(out)// throws android.system.ErrnoException: read Failed: EBADF (Bad file descriptor)

}

堆栈跟踪

Caused by: java.io.IOException: read Failed: EBADF (Bad file descriptor)
        at libcore.io.IoBridge.read(IoBridge.java:519)
        at java.io.FileInputStream.read(FileInputStream.java:320)
        at java.io.FileInputStream.read(FileInputStream.java:289)
        at kotlin.io.ByteStreamsKt.copyTo(IOStreams.kt:106)
        at kotlin.io.ByteStreamsKt.copyTo$default(IOStreams.kt:103)
        at com.ume.airdrop.ui.components.file.Scopestorage.copyFrom(Scopestorage.kt:25)
        at com.ume.airdrop.ui.components.file.BaseStorage$save$2.invoke(BaseStorage.kt:44)
        at com.ume.airdrop.ui.components.file.BaseStorage$save$2.invoke(BaseStorage.kt:14)
        at com.ume.airdrop.ui.components.file.BaseStorage$createFunction$1.invoke(BaseStorage.kt:90)
        at com.ume.airdrop.ui.components.file.BaseStorage$createFunction$1.invoke(BaseStorage.kt:14)
        at com.ume.airdrop.ui.components.file.BaseStorage.save(BaseStorage.kt:73)
        at com.ume.airdrop.ui.service.ForegroundService.onComplete(ForegroundService.kt:96)
        at com.ume.airdrop.ui.components.p2p.DataHandler.onPayloadTransferUpdate(DataHandler.kt:48)
        at com.google.android.gms.internal.nearby.zzax.notifyListener(UnkNown Source:14)
        at com.google.android.gms.common.api.internal.ListenerHolder.notifyListenerInternal(UnkNown Source:17)
        at com.google.android.gms.common.api.internal.ListenerHolder$zaa.handleMessage(UnkNown Source:5)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at com.google.android.gms.internal.base.zap.dispatchMessage(UnkNown Source:8)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7660)
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 
     Caused by: android.system.ErrnoException: read Failed: EBADF (Bad file descriptor)
        at libcore.io.Linux.readBytes(Native Method)
        at libcore.io.Linux.read(Linux.java:189)
        at libcore.io.ForwardingOs.read(ForwardingOs.java:176)
        at libcore.io.BlockGuardOs.read(BlockGuardOs.java:305)
        at libcore.io.ForwardingOs.read(ForwardingOs.java:176)

解决方法

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