I am developing a flutter app in which I'm using webview_flutter plugin. Now inside the webview I want upload a file from the device. The problem is when I try to select browse button to choose the files from my device (or use Camera directly), I get IllegalArgumentException.
I found other issues like this but it didn't solve my problem:
- java.lang.IllegalArgumentException: Failed to find configured root that contains /storage/emulated/0/Android/data/
- Android: FileProvider IllegalArgumentException Failed to find configured root that contains /data/data/**/files/Videos/final.mp4
- FileProvider - IllegalArgumentException: Failed to find configured root
Below is the code for the package I'm using: (You can also go to this LINK to get the exact code which I'm using)
packages/webview_flutter/android/src/main/AndroidManifest.xml:
<manifest package="io.flutter.plugins.webviewflutter"
xmlns:android="http://schemas.android.com/apk/res/android">
<application>
<activity
android:name="io.flutter.plugins.webviewflutter.RequestCameraPermissionActivity"
android:theme="@android:style/Theme.Translucent.NoTitleBar.Fullscreen" />
<activity
android:name="io.flutter.plugins.webviewflutter.FileChooserActivity"
android:theme="@android:style/Theme.Translucent.NoTitleBar.Fullscreen" />
<provider
android:name="io.flutter.plugins.webviewflutter.GenericFileProvider"
android:authorities="${applicationId}.generic.provider"
android:exported="false"
android:grantUriPermissions="true"
>
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"
/>
</provider>
</application>
packages/webview_flutter/android/src/main/java/io/flutter/plugins/webviewflutter/Constants.java:
package io.flutter.plugins.webviewflutter;
public class Constants {
static final String ACTION_REQUEST_CAMERA_PERMISSION_FINISHED =
"action_request_camera_permission_denied";
static final String ACTION_FILE_CHOOSER_FINISHED = "action_file_chooser_completed";
static final String EXTRA_TITLE = "extra_title";
static final String EXTRA_ACCEPT_TYPES = "extra_types";
static final String EXTRA_SHOW_VIDEO_OPTION = "extra_show_video_option";
static final String EXTRA_SHOW_IMAGE_OPTION = "extra_show_image_option";
static final String EXTRA_FILE_URIS = "extra_file_uris";
static final String EXTRA_ALLOW_MULTIPLE_FILES = "extra_allow_multiple_files";
static final String WEBVIEW_STORAGE_DIRECTORY = "storage";
}
packages/webview_flutter/android/src/main/java/io/flutter/plugins/webviewflutter/FileChooserActivity.java:
package io.flutter.plugins.webviewflutter;
import static io.flutter.plugins.webviewflutter.Constants.ACTION_FILE_CHOOSER_FINISHED;
import static io.flutter.plugins.webviewflutter.Constants.EXTRA_ACCEPT_TYPES;
import static io.flutter.plugins.webviewflutter.Constants.EXTRA_ALLOW_MULTIPLE_FILES;
import static io.flutter.plugins.webviewflutter.Constants.EXTRA_FILE_URIS;
import static io.flutter.plugins.webviewflutter.Constants.EXTRA_SHOW_IMAGE_OPTION;
import static io.flutter.plugins.webviewflutter.Constants.EXTRA_SHOW_VIDEO_OPTION;
import static io.flutter.plugins.webviewflutter.Constants.EXTRA_TITLE;
import static io.flutter.plugins.webviewflutter.Constants.WEBVIEW_STORAGE_DIRECTORY;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.provider.OpenableColumns;
import android.util.Log;
import androidx.annotation.Nullable;
import androidx.core.content.FileProvider;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
public class FileChooserActivity extends Activity {
private static final int FILE_CHOOSER_REQUEST_CODE = 12322;
private static final SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMdd_HHmmss");
// List of Uris that point to files where there MIGHT be the output of the capture. At most one of these can be valid
private final ArrayList<Uri> potentialCaptureOutputUris = new ArrayList<>();
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
showFileChooser(
getIntent().getBooleanExtra(EXTRA_SHOW_IMAGE_OPTION, false),
getIntent().getBooleanExtra(EXTRA_SHOW_VIDEO_OPTION, false));
}
private void showFileChooser(boolean showImageIntent, boolean showVideoIntent) {
Intent getContentIntent = createGetContentIntent();
Intent captureImageIntent =
showImageIntent ? createCaptureIntent(MediaStore.ACTION_IMAGE_CAPTURE, "jpg") : null;
Intent captureVideoIntent =
showVideoIntent ? createCaptureIntent(MediaStore.ACTION_VIDEO_CAPTURE, "mp4") : null;
if (getContentIntent == null && captureImageIntent == null && captureVideoIntent == null) {
// cannot open anything: cancel file chooser
sendBroadcast(new Intent(ACTION_FILE_CHOOSER_FINISHED));
finish();
} else {
ArrayList<Intent> intentList = new ArrayList<>();
if (getContentIntent != null) {
intentList.add(getContentIntent);
}
if (captureImageIntent != null) {
intentList.add(captureImageIntent);
}
if (captureVideoIntent != null) {
intentList.add(captureVideoIntent);
}
Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
chooserIntent.putExtra(Intent.EXTRA_TITLE, getIntent().getStringExtra(EXTRA_TITLE));
chooserIntent.putExtra(Intent.EXTRA_INTENT, intentList.get(0));
intentList.remove(0);
if (intentList.size() > 0) {
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentList.toArray(new Intent[0]));
}
startActivityForResult(chooserIntent, FILE_CHOOSER_REQUEST_CODE);
}
}
private Intent createGetContentIntent() {
Intent filesIntent = new Intent(Intent.ACTION_GET_CONTENT);
if (getIntent().getBooleanExtra(EXTRA_ALLOW_MULTIPLE_FILES, false)) {
filesIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
}
String[] acceptTypes = getIntent().getStringArrayExtra(EXTRA_ACCEPT_TYPES);
if (acceptTypes.length == 0 || (acceptTypes.length == 1 && acceptTypes[0].length() == 0)) {
// empty array or only 1 empty string? -> accept all types
filesIntent.setType("*/*");
} else if (acceptTypes.length == 1) {
filesIntent.setType(acceptTypes[0]);
} else {
// acceptTypes.length > 1
filesIntent.setType("*/*");
filesIntent.putExtra(Intent.EXTRA_MIME_TYPES, acceptTypes);
}
return (filesIntent.resolveActivity(getPackageManager()) != null) ? filesIntent : null;
}
private Intent createCaptureIntent(String type, String fileFormat) {
Intent captureIntent = new Intent(type);
if (captureIntent.resolveActivity(getPackageManager()) == null) {
return null;
}
// Create the File where the output should go
Uri captureOutputUri = getTempUri(fileFormat);
potentialCaptureOutputUris.add(captureOutputUri);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, captureOutputUri);
return captureIntent;
}
private File getStorageDirectory() {
File imageDirectory = new File(getCacheDir(), WEBVIEW_STORAGE_DIRECTORY);
if (!imageDirectory.exists() && !imageDirectory.mkdir()) {
Log.e("WEBVIEW", "Unable to create storage directory");
}
return imageDirectory;
}
private Uri getTempUri(String format) {
String fileName = "CAPTURE-" + simpleDateFormat.format(new Date()) + "." + format;
File file = new File(getStorageDirectory(), fileName);
return FileProvider.getUriForFile(
this, getApplicationContext().getPackageName() + ".generic.provider", file);
}
private String getFileNameFromUri(Uri uri) {
Cursor returnCursor = getContentResolver().query(uri, null, null, null, null);
assert returnCursor != null;
int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
returnCursor.moveToFirst();
String name = returnCursor.getString(nameIndex);
returnCursor.close();
return name;
}
private Uri copyToLocalUri(Uri uri) {
File destination = new File(getStorageDirectory(), getFileNameFromUri(uri));
try (InputStream in = getContentResolver().openInputStream(uri);
OutputStream out = new FileOutputStream(destination)) {
byte[] buffer = new byte[1024];
int len;
while ((len = in.read(buffer)) != -1) {
out.write(buffer, 0, len);
}
return FileProvider.getUriForFile(
this, getApplicationContext().getPackageName() + ".generic.provider", destination);
} catch (IOException e) {
Log.e("WEBVIEW", "Unable to copy selected image", e);
e.printStackTrace();
return null;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == FILE_CHOOSER_REQUEST_CODE) {
Intent fileChooserFinishedIntent = new Intent(ACTION_FILE_CHOOSER_FINISHED);
if (resultCode == Activity.RESULT_OK) {
if (data != null && (data.getDataString() != null || data.getClipData() != null)) {
if (data.getDataString() != null) {
// single result from file browser OR video from camera
Uri localUri = copyToLocalUri(data.getData());
if (localUri != null) {
fileChooserFinishedIntent.putExtra(
EXTRA_FILE_URIS, new String[] {localUri.toString()});
}
} else if (data.getClipData() != null) {
// multiple results from file browser
int uriCount = data.getClipData().getItemCount();
String[] uriStrings = new String[uriCount];
for (int i = 0; i < uriCount; i++) {
Uri localUri = copyToLocalUri(data.getClipData().getItemAt(i).getUri());
if (localUri != null) {
uriStrings[i] = localUri.toString();
}
}
fileChooserFinishedIntent.putExtra(EXTRA_FILE_URIS, uriStrings);
}
} else {
// image result from camera (videos from the camera are handled above, but this if-branch could handle them too if this varies from device to device)
for (Uri captureOutputUri : potentialCaptureOutputUris) {
try {
// just opening an input stream (and closing immediately) to test if the Uri points to a valid file
// if it's not a real file, the below catch-clause gets executed and we continue with the next Uri in the loop.
getContentResolver().openInputStream(captureOutputUri).close();
fileChooserFinishedIntent.putExtra(
EXTRA_FILE_URIS, new String[] {captureOutputUri.toString()});
// leave the loop, as only one of the potentialCaptureOutputUris is valid and we just found it
break;
} catch (IOException ignored) {
}
}
}
}
sendBroadcast(fileChooserFinishedIntent);
finish();
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
}
packages/webview_flutter/android/src/main/res/values/strings.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="webview_file_chooser_title">Choose a file</string>
<string name="webview_image_chooser_title">Choose an image</string>
<string name="webview_video_chooser_title">Choose a video</string>
</resources>
packages/webview_flutter/android/src/main/res/xml/provider_paths.xml:
<?xml version="1.0" encoding="utf-8"?>
<paths>
<cache-path name="storage"/>
</paths>
The app is crashing with this error:
I/Timeline(26709): Timeline: Activity_launch_request time:162255045 intent:Intent { flg=0x10000000 cmp=com.XXXX(Package)/io.flutter.plugins.webviewflutter.FileChooserActivity (has extras) }
D/OneSignal(26709): curActivity is NOW: null
W/ActivityThread(26709): handleWindowVisibility: no activity for token android.os.BinderProxy@1811995
D/AndroidRuntime(26709): Shutting down VM
E/AndroidRuntime(26709): FATAL EXCEPTION: main
E/AndroidRuntime(26709): Process: com.XXXX, PID: 26709
E/AndroidRuntime(26709): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.XXXX/io.flutter.plugins.webviewflutter.FileChooserActivity}: java.lang.IllegalArgumentException: Failed to find configured root that contains /data/data/com.XXXX(Package)/cache/storage/CAPTURE-20210426_203521.jpg
E/AndroidRuntime(26709): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2946)
E/AndroidRuntime(26709): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3081)
E/AndroidRuntime(26709): at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
E/AndroidRuntime(26709): at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
E/AndroidRuntime(26709): at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
E/AndroidRuntime(26709): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1831)
E/AndroidRuntime(26709): at android.os.Handler.dispatchMessage(Handler.java:106)
E/AndroidRuntime(26709): at android.os.Looper.loop(Looper.java:201)
E/AndroidRuntime(26709): at android.app.ActivityThread.main(ActivityThread.java:6810)
E/AndroidRuntime(26709): at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime(26709): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
E/AndroidRuntime(26709): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
E/AndroidRuntime(26709): Caused by: java.lang.IllegalArgumentException: Failed to find configured root that contains /data/data/com.XXXX(Package)/cache/storage/CAPTURE-20210426_203521.jpg
E/AndroidRuntime(26709): at androidx.core.content.FileProvider$SimplePathStrategy.getUriForFile(FileProvider.java:744)
E/AndroidRuntime(26709): at androidx.core.content.FileProvider.getUriForFile(FileProvider.java:418)
E/AndroidRuntime(26709): at io.flutter.plugins.webviewflutter.FileChooserActivity.getTempUri(FileChooserActivity.java:138)
E/AndroidRuntime(26709): at io.flutter.plugins.webviewflutter.FileChooserActivity.createCaptureIntent(FileChooserActivity.java:119)
E/AndroidRuntime(26709): at io.flutter.plugins.webviewflutter.FileChooserActivity.showFileChooser(FileChooserActivity.java:54)
E/AndroidRuntime(26709): at io.flutter.plugins.webviewflutter.FileChooserActivity.onCreate(FileChooserActivity.java:46)
E/AndroidRuntime(26709): at android.app.Activity.performCreate(Activity.java:7224)
E/AndroidRuntime(26709): at android.app.Activity.performCreate(Activity.java:7213)
E/AndroidRuntime(26709): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1272)
E/AndroidRuntime(26709): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2926)
E/AndroidRuntime(26709): ... 11 more
D/libcrashlytics(26709): Initializing libcrashlytics version 3.0.0
D/libcrashlytics(26709): Initializing native crash handling successful.
Can you help me with what I may be missing?