我有一个正在使用flutter_webview_plugin 0.3.8的应用程序。我在webview中打开一个网页并显示其内容。页面中有一个按钮，当您按下按钮时，它应该像在chrome这样的普通网络浏览器中一样打开文件资源管理器。该按钮在chrome中工作正常，并打开一个底部小部件以选择一个动作（相机，文件， ...）。但是在我的Web视图中，它崩溃并显示错误Couldn't find meta-data for provider with authority com.example.booshehr.fileprovider。完整的错误是：
W/System.err(15213): java.lang.IllegalArgumentException: Couldn't find meta-data for provider with authority com.example.booshehr.fileprovider
W/System.err(15213): at androidx.core.content.FileProvider.parsePathStrategy(FileProvider.java:606)
W/System.err(15213): at androidx.core.content.FileProvider.getPathStrategy(FileProvider.java:579)
W/System.err(15213): at androidx.core.content.FileProvider.geturiForFile(FileProvider.java:417)
W/System.err(15213): at com.flutter_webview_plugin.WebviewManager.getOutputFilename(WebviewManager.java:272)
W/System.err(15213): at com.flutter_webview_plugin.WebviewManager.access$800(WebviewManager.java:42)
W/System.err(15213): at com.flutter_webview_plugin.WebviewManager$3.onShowFileChooser(WebviewManager.java:211)
W/System.err(15213): at In.a(PG:145)
W/System.err(15213): at uE0.runFileChooser(PG:2)
W/System.err(15213): at android.os.MessageQueue.nativePollOnce(Native Method)
W/System.err(15213): at android.os.MessageQueue.next(MessageQueue.java:325)
W/System.err(15213): at android.os.Looper.loop(Looper.java:142)
W/System.err(15213): at android.app.activityThread.main(activityThread.java:6710)
W/System.err(15213): at java.lang.reflect.Method.invoke(Native Method)
W/System.err(15213): at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
W/System.err(15213): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:770)
F/chromium(15213): [FATAL:jni_android.cc(249)] Please include Java exception stack in crash report
F/libc (15213): Fatal signal 5 (SIGTRAP),code 1 in tid 15213 (xample.booshehr)
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'lge/elsa_global_com/elsa:8.0.0/OPR1.170623.032/18325232422a1:user/release-keys'
Revision: '12'
ABI: 'arm64'
pid: 15213,tid: 15213,name: xample.booshehr >>> com.example.booshehr <<<
signal 5 (SIGTRAP),code 1 (TRAP_BRKPT),fault addr 0x714216eb04
x0 0000000000000000 x1 0000000000000081 x2 000000007fffffff x3 0000000000000000
x4 0000000000000000 x5 0000000000000000 x6 0000000000000000 x7 7f7f7f7f7fffff7f
x8 0000000000000000 x9 0000000000000000 x10 0000000000000001 x11 0000000000000000
x12 0000007134d6ff00 x13 0000000000000000 x14 0000000000000000 x15 000000716228c000
x16 000000715dfd2208 x17 000000715df25c50 x18 000000006fba3d30 x19 0000007fd17f5c70
x20 0000007fd17f5c78 x21 0000007fd17f5c80 x22 000000000000004f x23 000000715dfd4808
x24 0000007143e3f000 x25 0000007fd17f5e70 x26 0000000000000001 x27 0000007162612a48
x28 0000007162612a48 x29 0000007fd17f5c60 x30 000000714216e9c4
sp 0000007fd17f57b0 pc 000000714216eb04 pstate 0000000060000000
backtrace:
#00 pc 0000000001e9fb04 /data/app/com.android.chrome-HU8bsIOJpUMqks882ELhSA==/base.apk (offset 0xc19000)
#01 pc 0000000001e9f9c0 /data/app/com.android.chrome-HU8bsIOJpUMqks882ELhSA==/base.apk (offset 0xc19000)
我尝试将provider添加到androidmanifest，仍然是相同的错误：
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationid}.fileProvider"
android:exported="false"
android:granturiPermissions="true"
tools:replace="android:authorities">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/filepaths"
tools:replace="android:resource" />
</provider>
我的@xml/filepaths是：
<?xml version="1.0" encoding="utf-8"?>
<paths>
<files-path name="myapp" path="images/"/>
</paths>
然后我尝试将android:authorities="${applicationid}.fileProvider"更改为android:authorities="${applicationid}.myownFileProvider"，仍然是相同的错误。
请帮助我。