当 Intent 在片段中时，找不到包含的已配置根目录

Question

网上有很多关于这个话题的问答，但不幸的是没有解决我的问题。

每次我尝试将相机用于我的 Fragment 中的视频录制图片时，我都会收到错误消息。我要保存这些文件的路径在 /data/data/com.example.testing/files/*

我总是遇到的错误是：无法找到“包含/data/data/com.example.testing/files/test.jpg”的已配置根和“无法找到包含以下内容的已配置根” /data/data/com.example.testing/files/test.mp4"

完整的错误日志：

2020-12-16 00:14:32.093 6473-6473/com.example.testing E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.testing, PID: 6473
    java.lang.IllegalArgumentException: Failed to find configured root that contains /data/data/com.example.testing/files/test.jpg
        at androidx.core.content.FileProvider$SimplePathStrategy.getUriForFile(FileProvider.java:744)
        at androidx.core.content.FileProvider.getUriForFile(FileProvider.java:418)
        at com.example.testing.fragments.InvitesCheck.capturePhoto(InvitesCheck.kt:141)
        at com.example.testing.fragments.InvitesCheck.access$capturePhoto(InvitesCheck.kt:32)
        at com.example.testing.fragments.InvitesCheck$onViewCreated.onClick(InvitesCheck.kt:53)
        at android.view.View.performClick(View.java:7192)
        at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:992)
        at android.view.View.performClickInternal(View.java:7166)
        at android.view.View.access00(View.java:824)
        at android.view.View$PerformClick.run(View.java:27592)
        at android.os.Handler.handleCallback(Handler.java:888)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:213)
        at android.app.ActivityThread.main(ActivityThread.java:8178)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1101)

我尝试了不同的设置，但不幸的是没有成功。

这是我的清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.testing">
    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-feature android:name="android.hardware.camera" />

    <application
        android:allowBackup="false"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.Testing">

        <activity
            android:name=".MainActivity"
            android:windowSoftInputMode="adjustResize">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <provider
            android:name="androidx.core.content.FileProvider"
            android:authorities="${applicationId}.provider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/provider_paths" />
        </provider>

    </application>

</manifest>

我正在使用以下函数调用相机：

private fun capturePhoto() {
    val file = File(requireContext().filesDir.path, "test.jpg")
    val uri = FileProvider.getUriForFile(requireActivity(), BuildConfig.APPLICATION_ID.toString() + ".provider", file)
    val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri)
    startActivityForResult(intent, REQUEST_CODE)
}

private fun captureVideo() {
    val file = File(requireContext().filesDir.path, "test.mp4")
    val uri = FileProvider.getUriForFile(requireActivity(), BuildConfig.APPLICATION_ID.toString() + ".provider", file)
    val intent = Intent(MediaStore.ACTION_VIDEO_CAPTURE)
    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
    intent.putExtra(MediaStore.EXTRA_DURATION_LIMIT, 10);
    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri)
    startActivityForResult(intent, REQUEST_VIDEO)
}

xml/provider_paths.xml

<?xml version="1.0" encoding="utf-8"?>
<paths>
    <external-path name="external_files" path="."/>
</paths>

我做错了什么？

提前致谢。

Answer 1

阅读此，似乎您在创建要写入的文件时应该使用 Context.getExternalFilesDir() 而不是 Context.getFilesDir()`。

这最终看起来像这样：

private fun capturePhoto() {
    val file = File(requireContext().getExternalFilesDir(null).path, "test.jpg")
    val uri = FileProvider.getUriForFile(requireActivity(), BuildConfig.APPLICATION_ID.toString() + ".provider", file)
    val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri)
    startActivityForResult(intent, REQUEST_CODE)
}

奖励：我建议您看一下 MediaStore class if you're planning on making a media-oriented app. Here's an official intro for it.

当 Intent 在片段中时，找不到包含的已配置根目录

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