org.apache.cordova.plugin.AMImageDownloader.java Source code

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Here is the source code for org.apache.cordova.plugin.AMImageDownloader.java

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//
//  AMImageDownloader.java
//
//
//  Created by Ruben on 08/06/13.
//  Copyright (c) 2013 Ruben Domnguez. All rights reserved.
//  MIT Licensed
//

package org.apache.cordova.plugin;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Calendar;

import org.apache.cordova.api.CallbackContext;
import org.apache.cordova.api.CordovaPlugin;
import org.json.JSONArray;
import org.json.JSONException;

import android.annotation.TargetApi;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;

@TargetApi(Build.VERSION_CODES.FROYO)
public class AMImageDownloader extends CordovaPlugin {
    @Override
    public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
        try {
            if (action.equals("downloadAndSaveImage")) {
                String urlString = args.getString(0);
                Bitmap image = this.downloadAndSaveImage(urlString);
                if (image != null) {
                    savePhoto(image);
                    callbackContext.success("success");
                    return true;
                } else {
                    callbackContext.error("Expected one non-empty string argument.");
                    return false;
                }
            } else {
                callbackContext.error("Expected one non-empty string argument.");
                return false;
            }
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    private Bitmap downloadAndSaveImage(String urlString) {
        Bitmap bitmap = null;
        if (urlString != null && urlString.length() > 0) {
            try {
                InputStream input = new java.net.URL(urlString).openStream();
                bitmap = BitmapFactory.decodeStream(input);
            } catch (Exception e) {
                System.out.println("Exc=" + e);
                return null;
            }
        }
        return bitmap;
    }

    private void savePhoto(Bitmap bmp) {
        OutputStream fOut = null;
        Calendar c = Calendar.getInstance();
        String date = String.valueOf((c.get(Calendar.MONTH))) + String.valueOf((c.get(Calendar.DAY_OF_MONTH)))
                + String.valueOf((c.get(Calendar.YEAR))) + String.valueOf((c.get(Calendar.HOUR_OF_DAY)))
                + String.valueOf((c.get(Calendar.MINUTE))) + String.valueOf((c.get(Calendar.SECOND)));

        File file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
                date.toString() + ".png");
        try {
            fOut = new FileOutputStream(file);
            bmp.compress(Bitmap.CompressFormat.PNG, 85, fOut);
            fOut.flush();
            fOut.close();

            /**Update image to gallery**/
            Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
            Uri contentUri = Uri.fromFile(file);
            mediaScanIntent.setData(contentUri);
            this.cordova.getActivity().sendBroadcast(mediaScanIntent);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}