FileProvider - IllegalArgumentException:未能找到配置的根

我试图用相机拍照，但我得到以下错误:

FATAL EXCEPTION: main
Process: com.example.marek.myapplication, PID: 6747
java.lang.IllegalArgumentException: Failed to find configured root that contains /storage/emulated/0/Android/data/com.example.marek.myapplication/files/Pictures/JPEG_20170228_175633_470124220.jpg
    at android.support.v4.content.FileProvider$SimplePathStrategy.getUriForFile(FileProvider.java:711)
    at android.support.v4.content.FileProvider.getUriForFile(FileProvider.java:400)
    at com.example.marek.myapplication.MainActivity.dispatchTakePictureIntent(MainActivity.java:56)
    at com.example.marek.myapplication.MainActivity.access$100(MainActivity.java:22)
    at com.example.marek.myapplication.MainActivity$1.onClick(MainActivity.java:35)

AndroidManifest.xml:

<provider
        android:name="android.support.v4.content.FileProvider"
        android:authorities="com.example.marek.myapplication.fileprovider"
        android:enabled="true"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/file_paths" />
</provider>

Java:

Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    // Ensure that there's a camera activity to handle the intent
    if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
        // Create the File where the photo should go
        File photoFile = null;
        try {
            photoFile = createImageFile();
        } catch (IOException ex) {
            Toast.makeText(getApplicationContext(), "Error while saving picture.", Toast.LENGTH_LONG).show();
        }
        // Continue only if the File was successfully created
        if (photoFile != null) {
            Uri photoURI = FileProvider.getUriForFile(this,
                    "com.example.marek.myapplication.fileprovider",
                    photoFile);
            takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
            startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
        }
    }

file_paths.xml

<?xml version="1.0" encoding="utf-8"?>
<paths>
    <files-path name="my_images" path="images/"/>
</paths>

我一整天都在搜索这个错误，试图理解FileProvider，但我不知道这个错误消息试图告诉我什么。如果你想要更多信息/代码，请在评论中告诉我。

当前回答

如果没有任何帮助，你会得到错误

failed to find configured root that contains /data/data/...

然后试着改变一些线，比如:

File directory = thisActivity.getDir("images", Context.MODE_PRIVATE);

to:

File directory = new File(thisActivity.getFilesDir(), "images");

在XML文件中:

<files-path name="files" path="." />

这很奇怪，因为我访问的文件夹是/images。

2018-10-10 21:36:57

其他回答

我做了什么来解决这个问题

AndroidManifest.xml

<provider
            android:name="android.support.v4.content.FileProvider"
            android:authorities="com.mydomain.fileprovider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/filepaths"/>
        </provider>

fileppaths .xml(允许FileProvider共享应用程序外部文件目录中的所有文件)

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-files-path name="files"
        path="/" />
</paths>

并在Java类-

Uri fileProvider = FileProvider.getUriForFile(getContext(),"com.mydomain.fileprovider",newFile);

2017-12-26 06:50:01

我的问题是错误的文件名: 我在res/xml下创建file_paths.xml，而资源设置为Manifest中的provider_paths.xml:

<provider
        android:authorities="ir.aghigh.radio.fileprovider"
        android:name="android.support.v4.content.FileProvider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/provider_paths"/>
    </provider>

我将provider_paths更改为file_paths，问题解决了。

2019-05-08 09:10:12

我确信我是迟到了，但以下几点对我很有用。

<paths>
    <root-path name="root" path="." />
</paths>

2019-03-13 20:10:24

如果你使用内部缓存，那么使用。

<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <cache-path name="cache" path="/" />
</paths>

2017-11-15 13:32:43

更改main/res/xml/provider_paths.xml

从

<paths>
    <files-path path="images/" name="myimages" />
    <external-path name="download" path="download/"/>
</paths>

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

2022-11-17 05:56:31

FileProvider - IllegalArgumentException:未能找到配置的根

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