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

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

你需要确保file_paths.xml文件的内容包含这个字符串=> "/Android/data/com.example.marek.myapplication/files/Pictures/"

从错误消息中，这是存储图片的路径。见预期样本

files_path.xml如下:

<external-path name="qit_images" path="Android/data/com.example.marek.myapplication/files/Pictures/" />

2019-05-17 12:12:20

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

我得到这个错误未能找到配置根包含…

下面的工作解决了我的问题

res / xml / file_paths xml。

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

AndroidManifest.xml

<provider
      android:name="android.support.v4.content.FileProvider"
      android:authorities="[PACKAGE_NAME]"
      android:exported="false"
      android:grantUriPermissions="true">
         <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/file_paths">
         </meta-data>
</provider>

ActivityClass.java

void shareImage() {
        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setType("image/*");
        intent.putExtra(Intent.EXTRA_STREAM, FileProvider.getUriForFile(this,"com.slappstudio.pencilsketchphotomaker", selectedFilePath));
        startActivity(Intent.createChooser(intent,getString(R.string.string_share_with)));
    }

2019-02-15 08:04:01

这取决于你想做什么类型的存储，内部还是外部

用于外部存储

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

但是对于INTERNAL STORAGE，要小心路径，因为它使用getFilesDir()方法这意味着你的文件将位于应用程序的根目录("/")

  File storeDir = getFilesDir(); // path "/"

所以你的提供者文件必须是这样的:

<paths>
    <files-path name="my_images" path="/" />
</paths>

2018-06-28 23:49:03

FileProvider - IllegalArgumentException:未能找到配置的根

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