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.tuxpan.foregroundvideocapture; import java.io.File; import java.io.IOException; import org.apache.cordova.CallbackContext; import org.apache.cordova.CordovaPlugin; import org.apache.cordova.PluginResult; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Environment; public class CaptureFG extends CordovaPlugin { private static final String VIDEO_3GPP = "video/3gpp"; private static final String LOG_TAG = "CaptureFG"; // private static final int CAPTURE_APPLICATION_BUSY = 1; // private static final int CAPTURE_INVALID_ARGUMENT = 2; private static final int CAPTURE_NO_MEDIA_FILES = 3; private CallbackContext callbackContext; // The callback context from which // we were invoked. private int duration; // optional max duration of video recording in seconds private JSONArray results; // The array of results to be returned to the // user // private CordovaInterface cordova; // public void setContext(Context mCtx) // { // if (CordovaInterface.class.isInstance(mCtx)) // cordova = (CordovaInterface) mCtx; // else // LOG.d(LOG_TAG, // "ERROR: You must use the CordovaInterface for this to work correctly. Please implement it in your activity"); // } @Override public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException { this.callbackContext = callbackContext; this.duration = 0; this.results = new JSONArray(); JSONObject options = args.optJSONObject(0); if (options != null) { duration = options.optInt("duration", 0); } this.captureVideo(duration); return true; } private String getTempDirectoryPath() { File cache = null; // SD Card Mounted if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) { cache = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/" + cordova.getActivity().getPackageName() + "/cache/"); } // Use internal storage else { cache = cordova.getActivity().getCacheDir(); } // Create the cache directory if it doesn't exist cache.mkdirs(); return cache.getAbsolutePath(); } /** * Sets up an intent to capture video. Result handled by onActivityResult() */ private void captureVideo(int duration) { // Intent intent = new // Intent(android.provider.MediaStore.ACTION_VIDEO_CAPTURE); // // if(Build.VERSION.SDK_INT > 7){ // intent.putExtra("android.intent.extra.durationLimit", duration); // } Intent intent = new Intent(this.cordova.getActivity().getApplicationContext(), RecorderActivity.class); intent.putExtra("android.intent.extra.durationLimit", duration); File video = new File(getTempDirectoryPath(), "video.3gp"); intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, Uri.fromFile(video)); this.cordova.startActivityForResult((CordovaPlugin) this, intent, 0); } /** * Called when the video view exits. * * @param requestCode * The request code originally supplied to * startActivityForResult(), allowing you to identify who this * result came from. * @param resultCode * The integer result code returned by the child activity through * its setResult(). * @param intent * An Intent, which can return result data to the caller (various * data can be attached to Intent "extras"). * @throws JSONException */ public void onActivityResult(int requestCode, int resultCode, final Intent intent) { // Result received okay if (resultCode == Activity.RESULT_OK) { // An audio clip was requested final CaptureFG that = this; Runnable captureVideo = new Runnable() { @Override public void run() { Uri data = null; if (intent != null) { // Get the uri of the video clip data = intent.getData(); } if (data == null) { File movie = new File(getTempDirectoryPath(), "video.3gp"); data = Uri.fromFile(movie); } // create a file object from the uri if (data == null) { that.fail(createErrorObject(CAPTURE_NO_MEDIA_FILES, "Error: data is null")); } else { results.put(createMediaFile(data)); // Send Uri back to JavaScript for viewing video that.callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, results)); } } }; this.cordova.getThreadPool().execute(captureVideo); } // If canceled else if (resultCode == Activity.RESULT_CANCELED) { // If we have partial results send them back to the user if (results.length() > 0) { this.callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, results)); } // user canceled the action else { this.fail(createErrorObject(CAPTURE_NO_MEDIA_FILES, "Canceled.")); } } // If something else else { // If we have partial results send them back to the user if (results.length() > 0) { this.callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, results)); } // something bad happened else { this.fail(createErrorObject(CAPTURE_NO_MEDIA_FILES, "Did not complete!")); } } } /** * Creates a JSONObject that represents a File from the Uri * * @param data * the Uri of the audio/image/video * @return a JSONObject that represents a File * @throws IOException */ private JSONObject createMediaFile(Uri data) { File fp = webView.getResourceApi().mapUriToFile(data); JSONObject obj = new JSONObject(); try { // File properties obj.put("name", fp.getName()); obj.put("fullPath", "file://" + getTempDirectoryPath() + "/video.3gp"); // Because of an issue with MimeTypeMap.getMimeTypeFromExtension() // all .3gpp files // are reported as video/3gpp. I'm doing this hacky check of the URI // to see if it // is stored in the audio or video content store. obj.put("type", VIDEO_3GPP); obj.put("lastModifiedDate", fp.lastModified()); obj.put("size", fp.length()); } catch (JSONException e) { // this will never happen e.printStackTrace(); } return obj; } private JSONObject createErrorObject(int code, String message) { JSONObject obj = new JSONObject(); try { obj.put("code", code); obj.put("message", message); } catch (JSONException e) { // This will never happen } return obj; } /** * Send error message to JavaScript. * * @param err */ public void fail(JSONObject err) { this.callbackContext.error(err); } }