120 lines
4.1 KiB
Java
120 lines
4.1 KiB
Java
/*
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* Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.helper;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.util.Log;
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import android.app.Activity;
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import android.content.ActivityNotFoundException;
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import android.content.Context;
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import android.content.Intent;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Environment;
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import android.widget.Toast;
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public class FileHelper {
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/**
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* Checks if external storage is mounted if file is located on external storage
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*
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* @param file
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* @return true if storage is mounted
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*/
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public static boolean isStorageMounted(String file) {
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if (file.startsWith(Environment.getExternalStorageDirectory().getAbsolutePath())) {
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if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
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return false;
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}
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}
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return true;
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}
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/**
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* Opens the preferred installed file manager on Android and shows a toast if no manager is
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* installed.
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*
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* @param activity
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* @param filename
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* default selected file, not supported by all file managers
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* @param type
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* can be text/plain for example
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* @param requestCode
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* requestCode used to identify the result coming back from file manager to
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* onActivityResult() in your activity
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*/
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public static void openFile(Activity activity, String filename, String type, int requestCode) {
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Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
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intent.addCategory(Intent.CATEGORY_OPENABLE);
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intent.setData(Uri.parse("file://" + filename));
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intent.setType(type);
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try {
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activity.startActivityForResult(intent, requestCode);
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} catch (ActivityNotFoundException e) {
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// No compatible file manager was found.
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Toast.makeText(activity, R.string.noFilemanagerInstalled, Toast.LENGTH_SHORT).show();
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}
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}
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/**
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* Get a file path from a Uri.
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*
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* from https://github.com/iPaulPro/aFileChooser/blob/master/aFileChooser/src/com/ipaulpro/
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* afilechooser/utils/FileUtils.java
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*
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* @param context
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* @param uri
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* @return
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*
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* @author paulburke
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*/
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public static String getPath(Context context, Uri uri) {
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Log.d(Constants.TAG + " File -",
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"Authority: " + uri.getAuthority() + ", Fragment: " + uri.getFragment()
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+ ", Port: " + uri.getPort() + ", Query: " + uri.getQuery() + ", Scheme: "
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+ uri.getScheme() + ", Host: " + uri.getHost() + ", Segments: "
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+ uri.getPathSegments().toString());
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if ("content".equalsIgnoreCase(uri.getScheme())) {
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String[] projection = { "_data" };
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Cursor cursor = null;
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try {
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cursor = context.getContentResolver().query(uri, projection, null, null, null);
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int column_index = cursor.getColumnIndexOrThrow("_data");
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if (cursor.moveToFirst()) {
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return cursor.getString(column_index);
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}
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} catch (Exception e) {
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// Eat it
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}
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}
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else if ("file".equalsIgnoreCase(uri.getScheme())) {
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return uri.getPath();
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}
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return null;
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}
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}
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