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/*
* Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.thialfihar.android.apg.helper;
import java.net.URISyntaxException;
import org.thialfihar.android.apg.Constants;
import org.thialfihar.android.apg.R;
import org.thialfihar.android.apg.util.Log;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Environment;
import android.widget.Toast;
public class FileHelper {
/**
* Checks if external storage is mounted if file is located on external storage
*
* @param file
* @return true if storage is mounted
*/
public static boolean isStorageMounted(String file) {
if (file.startsWith(Environment.getExternalStorageDirectory().getAbsolutePath())) {
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
return false;
}
}
return true;
}
/**
* Opens the preferred installed file manager on Android and shows a toast if no manager is
* installed.
*
* @param activity
* @param filename
* default selected file, not supported by all file managers
* @param type
* can be text/plain for example
* @param requestCode
* requestCode used to identify the result coming back from file manager to
* onActivityResult() in your activity
*/
public static void openFile(Activity activity, String filename, String type, int requestCode) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setData(Uri.parse("file://" + filename));
intent.setType(type);
try {
activity.startActivityForResult(intent, requestCode);
} catch (ActivityNotFoundException e) {
// No compatible file manager was found.
Toast.makeText(activity, R.string.noFilemanagerInstalled, Toast.LENGTH_SHORT).show();
}
}
/**
* Get a file path from a Uri.
*
* from https://github.com/iPaulPro/aFileChooser/blob/master/aFileChooser/src/com/ipaulpro/
* afilechooser/utils/FileUtils.java
*
* @param context
* @param uri
* @return
*
* @author paulburke
*/
public static String getPath(Context context, Uri uri) {
Log.d(Constants.TAG + " File -",
"Authority: " + uri.getAuthority() + ", Fragment: " + uri.getFragment()
+ ", Port: " + uri.getPort() + ", Query: " + uri.getQuery() + ", Scheme: "
+ uri.getScheme() + ", Host: " + uri.getHost() + ", Segments: "
+ uri.getPathSegments().toString());
if ("content".equalsIgnoreCase(uri.getScheme())) {
String[] projection = { "_data" };
Cursor cursor = null;
try {
cursor = context.getContentResolver().query(uri, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow("_data");
if (cursor.moveToFirst()) {
return cursor.getString(column_index);
}
} catch (Exception e) {
// Eat it
}
}
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
}
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