How to make aws databse work in android? - android

so I'm trying to set up an aws database and im following the tutorial for set up here : http://docs.aws.amazon.com/mobile/sdkforandroid/developerguide/getting-started-store-query-app-data.html
But none of the imports work! When i import the following:
import com.amazonaws.services.dynamodbv2.*;
import com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.*;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBAttribute;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBHashKey;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBScanExpression;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBTable;
import com.amazonaws.services.dynamodbv2.datamodeling.PaginatedScanList;
All of them have a red line error!
Here is my dependencies.
compile 'com.amazonaws:aws-android-sdk-core:2.3.3'
compile 'com.amazonaws:aws-android-sdk-cognito:2.3.3'
compile 'com.amazonaws:aws-android-sdk-s3:2.3.3'
compile('com.amazonaws:aws-android-sdk-mobileanalytics:2.3.3')
compile('com.amazonaws:aws-android-sdk-apigateway-core:2.3.3')
compile 'com.amazonaws:aws-android-sdk-cognitoidentityprovider:2.3.3'
So because of this i cannot make the basic objects necessary to store data into my aws database... I get redline errors below. I hope you guys can help!
AmazonDynamoDBClient ddbClient = new AmazonDynamoDBClient(credentialsProvider);
DynamoDBMapper mapper = new DynamoDBMapper(ddbClient);

If you want to store data using DynamoDB, you need to give some permissions.
Set Permissions in Your Android Manifest
In AndroidManifest.xml, set the following permission, if it’s not already present
<uses-permission android:name="android.permission.INTERNET" />
A step by step storing data is given in the link: Store and Retrieve App Data in Amazon DynamoDB

Related

AWS amazon android firebase push notification

I have an issue with implementing Android AWS Amazon push notification using firebase, in Amazon sample, it shows you to add this line of code
link
AWSMobileClient.defaultMobileClient().getPinpointManager().getNotificationClient().registerGCMDeviceToken(refreshedToken);
But once you add it to the project AWSMobileClient class not initialized so I have added these SDK's
compile 'com.amazonaws:aws-android-sdk-core:2.4.5'
compile 'com.amazonaws:aws-android-sdk-cognito:2.4.5'
compile 'com.amazonaws:aws-android-sdk-pinpoint:2.4.5'
compile 'com.amazonaws:aws-android-sdk-mobileanalytics:2.4.5'
But they didn't initialize, after searching I found that you have to add the sample so I added it
Sample classes
but the classes didn't initialize.
So is there any straightforward example to Initializing this thank you.
Hopefully this helps. You'll need to fill in:
IDENTITY_POOL_ID
APP_ID
Adjust Regions.US_EAST_1 to whichever region you are using.
Code:
CognitoCachingCredentialsProvider cognitoCachingCredentialsProvider = new CognitoCachingCredentialsProvider(context,"IDENTITY_POOL_ID",Regions.US_EAST_1);
PinpointConfiguration config = new PinpointConfiguration(context, "APP_ID", Regions.US_EAST_1, cognitoCachingCredentialsProvider);
PinpointManager pinpointManager = new PinpointManager(config);
pinpointManager.getNotificationClient().registerGCMDeviceToken(refreshedToken);

How to Use the sheets API

Hi I am from a robotics team and trying to use the sheets API to put data into google sheets but at the competition we have no internet connection so we save the data locally then we want to upload it into a sheet that is stored on the tablet and then it will be in so that when the tablet connects to the internet the table is updated. So far we have the local save working but google sheets is proving confusing. We need to have this done by saturday preferably tuesday thanks for all the help
package com.scouting.corbin.frc_201415_scouting;
import java.net.URL;
import java.util.List;
import java.io.IOException;
import com.google.gdata.client.spreadsheet.*;
import com.google.gdata.data.TextConstruct;
import com.google.gdata.data.spreadsheet.*;
import com.google.gdata.util.*;
public class SheetSaver
{
SpreadsheetService service = new SpreadsheetService("test");
SpreadsheetEntry spreadsheet;
WorksheetEntry entry;
URL worksheetUrl;
ListFeed feed;
int length = 100;
int ind = 0;
public SheetSaver() throws Exception
{
spreadsheet = new SpreadsheetEntry();
spreadsheet.setTitle(TextConstruct.create(1, "TestSheet", null));
entry = spreadsheet.getDefaultWorksheet();
entry.setColCount(2);
entry.setRowCount(length);
worksheetUrl = entry.getCellFeedUrl();
feed = service.getFeed(worksheetUrl, ListFeed.class);
}
void save()
{
}
void add(int value) throws IOException, ServiceException
{
ListEntry row = new ListEntry();
row.getCustomElements().setValueLocal("test", String.valueOf(value));
service.insert(worksheetUrl, row);
}
}
When I was trying to do something similar I looked at the Google Sheets API and decided that it wasn't worth it - thankfully I found the Google Drive API to be much easier. Take a look at the resources here: https://developers.google.com/drive/android/files
With this you won't be able to directly write to a Google Sheets file but alternatively you can create a CSV file and write data as CSV (comma-separated-values) which is really easy. The Google Drive API handles all of the local sync and storage itself. I'm not quite sure how Google Sheets handles authentication but from what I saw it looked quite complicated.
With Google Drive you can use the Google Plus API and the built in permissions stuff to do it quite easily (Log in buttons, permission screen, etc) are all provided.
Having done FIRST myself (FTC) - you could just use one of the existing scouting apps here.
Unless this is for judging - then good luck :P.

GoogleJsonResponseException: 404 Not Found using google apps endpoint engine backend

I followed the tutorial below.
https://developers.google.com/eclipse/docs/running_and_debugging_2_0
which basically added a GAE backend to my existing app. I then try out the example below, run it on the local development server and I get the exception below which occurs after
Note result = endpoint.insertNote(note).execute();
is called.
com.google.api.client.googleapis.json.GoogleJsonResponseException: 404 Not Found
My code is below.
package com.cloudnotes;
import java.io.IOException;
import java.util.Date;
import android.os.AsyncTask;
import android.content.Context;
import com.cloudnotes.noteendpoint.Noteendpoint;
import com.cloudnotes.noteendpoint.model.Note;
import com.google.api.client.extensions.android.http.AndroidHttp;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.json.jackson.JacksonFactory;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new EndpointsTask().execute(getApplicationContext());
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
public class EndpointsTask extends AsyncTask<Context, Integer, Long> {
protected Long doInBackground(Context... contexts) {
Noteendpoint.Builder endpointBuilder = new Noteendpoint.Builder(
AndroidHttp.newCompatibleTransport(),
new JacksonFactory(),
new HttpRequestInitializer() {
public void initialize(HttpRequest httpRequest) { }
});
Noteendpoint endpoint = CloudEndpointUtils.updateBuilder(
endpointBuilder).build();
try {
Note note = new Note().setDescription("Note Description");
String noteID = new Date().toString();
note.setId(noteID);
note.setEmailAddress("E-Mail Address");
Note result = endpoint.insertNote(note).execute();
} catch (IOException e) {
e.printStackTrace();
}
return (long) 0;
}
}
}
Another possible cause for this problem is not setting the correct applicationId in appengine-web.xml:
<?xml version="1.0" encoding="utf-8"?>
<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">
<application>APPLICATION_ID_HERE</application>
...
</appengine-web-app>
Another possible reason for 404 if you call the method with a null parameter and the method does not accept null parameters.
I had a similar issue with a method with 4 String parameters and I sent null for one of them and all I got was a stupid 404.
Another possible reason for 404 on the development(local) server is that you have a parameter with some strange characters (like a url for example) that the development(local) server does not handle correctly event if it works fine on the app engine live servers. Possible solution: instead of multiple params use a simple java object.
I had the same problem and this is how I fixed it.
A little background
I had two versions of the API deployed to App Engine which I believe it should be OK. The admin console didn't show any problem and I was getting the 200 OK code after deploying version 2 of the API in log file.
/_ah/spi/BackendService.getApiConfigs 200 118ms 8kb
but no matter what I tried I was always getting the 404 Not Found error.
I am not sure what the problem was but I think Web Server at App Engine was redirecting all the requests to the version 1. It could be because both versions had the following settings in their web.xml.
<servlet-mapping>
<servlet-name>SystemServiceServlet</servlet-name>
<url-pattern>/_ah/spi/*</url-pattern>
</servlet-mapping>
Solution
I removed version 1 and redeployed version 2. Then everything just worked fine.
This comes down to the app engine default version being different from the one you've deployed. Go here:
https://appengine.google.com/deployment?app_id=s~your-project-id
and change your default version
this happen because your deploy back-end is not fully deployed. just re-deploy your back-end and make sure you got the message deploy succeed. you can check the detail deploy process on the top page header. also, you can test by visiting the url to check:
https://developers.google.com/apis-explorer/?base=https://[YOUR_PROJECT_ID].appspot.com/_ah/api#p/
Try to update your plugin and dependency libraries to the latest version. See https://stackoverflow.com/a/37639701/857346.
In build gradle do:
minifyEnabled false

as3 android saving downloaded files from server

The following code WORKS when run on the Desktop but does not on the android device. I am thinking it has something to do with the FileStream below.
Any thoughts on how I can save this to an Android device too?
import flash.display.MovieClip;
import flash.display.Sprite;
import flash.events.MouseEvent;
import flash.events.ProgressEvent;
import flash.net.FileReference;
import flash.net.URLRequest;
import flash.events.Event;
import flash.filesystem.File;
import flash.filesystem.FileMode;
import flash.filesystem.FileStream;
var urlLoader:URLLoader = new URLLoader();
urlLoader.addEventListener(Event.COMPLETE, complete_handler);
urlLoader.dataFormat = URLLoaderDataFormat.BINARY;
urlLoader.load(new URLRequest("http://massmediamail.com/mp3s/Why%20a%20Protestant%20Pastor%20Beacame%20Catholic.mp3"));
//any file type;
function complete_handler(event:Event):void
{
var data:ByteArray = event.target.data;
var fr:FileReference = new FileReference();
trace(File.applicationDirectory.nativePath);
fr.save(data, 'Catholic.mp3');
var fileStream:FileStream = new FileStream();
trace(File.applicationDirectory.nativePath);
fileStream.open(new File (File.applicationStorageDirectory.nativePath+"\\Catholic.mp3"),FileMode.WRITE);
fileStream.writeBytes(data, 0, data.length);
}
HERE IS THE ERROR:
Error #2044: Unhandled IOErrorEvent:. text=Error #2038: File I/O Error.
at Untitled_fla::MainTimeline/complete_handler()[Untitled_fla.MainTimeline::frame1:25]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()
THIS IS THE LINE IT'S REFERRING TOO:
fileStream.open(new File (File.applicationStorageDirectory.nativePath+"\\Catholic.mp3"),FileMode.WRITE);
It works with Air for Android. Yes you can do more with it later but this is the basic start.
import flash.net.FileReference;
/// It can be an mp3,jpg, png, etc... just change the url
/// and the extension name. nice huh?
var yourFileLocation = "http://YourWeb.com/YourSong.mp3";
var yourFileName = "YourSong.mp3";
var daFile:FileReference = new FileReference();
daFile.download(new URLRequest(yourFileLocation), yourFileName);
I worked FOREVER... to find this. I hope it helps many. Why is this not more common knowledge? Somethings in action-script are impossible to find sometimes.
There is ONE question I have regarding this. How can I make the code download directly to a location on the device rather than the user having to choose the location. Thanks Much!
You'll definitely need to change to "/" over the "\", Android is a linux based system. Actually you should use File.separator property for this rather than a string, this will keep your code cross-platform.
Generally though you should be able to use this:
File.applicationStorageDirectory.resolvePath( "Catholic.mp3" );
Have you given the application permission to write to the filesystem?
To do this you need to add the following, in particular the "WRITE_EXTERNAL_STORAGE" line, to your application descriptor.
<android>
<manifestAdditions><![CDATA[
<manifest android:installLocation="auto">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
</manifest>
]]></manifestAdditions>
</android>
Also you should listen for these errors to get more information, and handle them in your code:
fileStream.addEventListener( IOErrorEvent.IO_ERROR, fileStream_errorHandler,

android jdbc odbc connection

i want to connect odbc connection to my android application. my database is oracle 10g. Here in my code my table name is world. After compiling my program and close the emulator open table in oracle database the values could not be stored
The same coding i compiled normal javac compiler in cmp prompt the values should be stored, if i compiling in android application in eclipse ide the values could not be stored.Pls give one solution or any changes in my code
Thanks in advance
package com.odbc;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import android.app.Activity;
import android.os.Bundle;
import android.R.id;
public class OdbcActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try
{
String country="india";
String city="delhi";
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:world","system","love");
PreparedStatement ps=con.prepareStatement("insert into world(country,city) values(?,?)");
ps.setString(1,country);
ps.setString(2,city);
ps.executeUpdate();
}
catch(Exception e)
{
System.out.println("Exception:"+e);
}
}
}
Android apps connecting directly to a DMBS isn't an architecture I'd recommend. Instead, I suggest setting an application on the server (using Java, Rails, whatever) that reads the database and exposes a simple HTTP web service for the Android app to get at the data. Not only is that a more sound architecture, I'm not even sure you can run JDBC drivers in an Android device. Using my architecture, you isolate the device from the structure and type of your database.

Categories

Resources