Java tutorial
/* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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 com.guinatal.refreshgallery; import java.io.File; import org.apache.cordova.CallbackContext; import org.json.JSONArray; import org.json.JSONException; import android.content.Context; import android.content.Intent; import android.net.Uri; import org.apache.cordova.*; /** * @author Guilherme Natal de Mello (guinatal.com) * */ public class PluginRefreshGallery extends CordovaPlugin { public CallbackContext callbackContext; /** * Executes the request and returns PluginResult. * * @param action The action to execute. * @param args JSONArry of arguments for the plugin. * @param callbackContext The callback id used when calling back into JavaScript. * @return A PluginResult object with a status and message. */ @Override public boolean execute(String action, JSONArray args, CallbackContext callbackContext) { this.callbackContext = callbackContext; try { if (action.equals("refresh")) { String filePath = checkFilePath(args.getString(0)); if (filePath.equals("")) { PluginResult r = new PluginResult(PluginResult.Status.ERROR); callbackContext.sendPluginResult(r); return true; } File file = new File(filePath); Intent scanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); scanIntent.setData(Uri.fromFile(file)); Context context = webView.getContext(); context.sendBroadcast(scanIntent); } PluginResult r = new PluginResult(PluginResult.Status.OK); callbackContext.sendPluginResult(r); return true; } catch (JSONException e) { PluginResult r = new PluginResult(PluginResult.Status.JSON_EXCEPTION); callbackContext.sendPluginResult(r); return true; } catch (Exception e) { PluginResult r = new PluginResult(PluginResult.Status.ERROR); callbackContext.sendPluginResult(r); return true; } } private String checkFilePath(String filePath) { String return_value = ""; try { return_value = filePath.replaceAll("^file://", ""); } catch (Exception e) { System.out.println("Error with the filePath"); } return return_value; } }