我正在使用Fileprovider
从Android应用程序捕获图像并将图像保存在外部存储中。但它给了我一个例外,如下所示
java.lang.IllegalArgumentException:
Failed to find configured root that contains /data/data/com.rocketstove/files/SAMS/JMC-R-1256655/application_form_first.jpg
我在androidManifest中配置了像这样的提供程序
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
我还在file_paths
中添加了以下行<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path
name="external_files"
path="." />
</paths>
在java代码中
if (Build.VERSION.SDK_INT >= 23) {
File imagePath = new File(getActivity().getFilesDir(), "SAMS");
if (!imagePath.exists()) {
imagePath.mkdir();
}
imagePath = new File(getActivity().getFilesDir() + "/SAMS", rocketId);
if (!imagePath.exists()) {
imagePath.mkdir();
}
File imageFile = new File(imagePath.getPath(), filename);
intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
String authority = getActivity().getApplicationContext().getPackageName() + ".fileprovider";
Uri uri = FileProvider.getUriForFile(getActivity(), authority, imageFile);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
startActivity(intent);
}
修改 file_paths
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-files-path name="external_files" path="Android/data/com.rocketstove.files/"/>
</paths>
Java代码
if (Build.VERSION.SDK_INT >= 23) {
File file
=getActivity().getExternalFilesDir(null);
File imagePath = new File(file , rocketId);
if (!imagePath.exists()) {
imagePath.mkdir();
}
File imageFile = new File(imagePath.getPath(), filename);
intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
String authority = getActivity().getApplicationContext().getPackageName() + ".fileprovider";
Uri uri = FileProvider.getUriForFile(getActivity(), authority, imageFile);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
startActivity(intent);
}
错误
ava.lang.IllegalArgumentException: Failed to find configured root that contains /storage/emulated/0/Android/data/com.rocketstove/files/JMC-R-4555555/application_form_first.jpg
at android.support.v4.content.FileProvider$SimplePathStrategy.getUriForFile(FileProvider.java:719)
at android.support.v4.content.FileProvider.getUriForFile(FileProvider.java:404)
答案 0 :(得分:2)
我还在file_paths
中添加了以下行
你有external-path
。 documentation表示:
表示外部存储区域根目录中的文件。此子目录的根路径与Environment.getExternalStorageDirectory()返回的值相同。
这不是您File
指向的地方。
将external-path
更改为files-path
,因为您的Java代码使用getFilesDir()
。