Develop Reference

How to open only Google Drive with SAF or without SAF?

I have following code to open the storage access framework:
private void startDialog()
{
Intent intent= new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("text/plain");
startActivityForResult(intent, 1);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent resultData)
{
super.onActivityResult(requestCode, resultCode, resultData);
}
But in in the SAF, I can select all places on my device. How can I open directly only my Google Drive Account? One way maybe is of the SAF and another way is over the google drive rest api v3. I can authenticate me with them, but i don't know how to open files with the api. With api v2 i could open file via: Drive.DriveApi but the DriveApi is deprecated.

UPI integration in android: How to use onActivityResult?

UPI (Unified Payment Interface) is a payment interface for Indian banks.
In UPI transactions are links. Just like bitcoin transactions are messages
Those links are passed to UPI payment apps and the payer has to login to the app and click the pay button.
Our app has to start an intent and pass link to the UPI payment app and after payer clicks the pay button we need to call onActivityResult.
I dont know anything about android development in java.
I use python kivy for android development. I want to know what should my onActivityResult should do.
Sample code :
UPI App Deep linking using Intent - inconsistent and buggy behavior
I can use java code in python using pyjnius.
Some reference link:
https://blog.deazzle.in/enable-upi-payments-in-your-app-without-the-need-to-integrate-with-a-bank-c911019f3b2d

you have not any need to do it manually. I have developed a library for it.
Just have to do a simple process.
final EasyUpiPayment easyUpiPayment = new EasyUpiPayment.Builder()
.with(this)
.setPayeeVpa("EXAMPLE#VPA")
.setPayeeName("PAYEE_NAME")
.setTransactionId("UNIQUE_TRANSACTION_ID")
.setTransactionRefId("UNIQUE_TRANSACTION_REF_ID")
.setDescription("DESCRIPTION_OR_SMALL_NOT")
.setAmount("AMOUNT_IN_DECIMAL_XX.XX")
.build();
easyUpiPayment.startPayment();
For more info, you can visit below site.
https://github.com/PatilShreyas/EasyUpiPayment-Android

Activity A:
Intent start = new Intent(MainActivity.this, PurchaseActivity.class);
startActivityForResult(start, 1);
And add this result listener:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
if (requestCode == 1) {
if (resultCode == RESULT_OK) {
//payment was successful
}else if (resultCode == RESULT_CANCELED) {
//payment was canceled
}
}
}
And Activity B:
If payment was successful:
setResult(RESULT_OK, new Intent());
finish();
or if it was canceled:
setResult(RESULT_CANCELED, new Intent());
finish();

Twitter Android-FirebaseUI auth: How to post on user's behalf once I have the access Token and the access secret on Android App??are those enough?

I logged in successfully and got the twitter access token and the twitter access secret using firebase-ui-auth [https://github.com/firebase/FirebaseUI-Android/blob/master/auth/README.md][1]:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RC_SIGN_IN && resultCode == RESULT_OK) {
IdpResponse response = IdpResponse.fromResultIntent(data);
//twitter access token
response.getIdpToken();
//twitter access token secret
response.getIdpSecret();
}
}
I want to post on user's behalf(to their accounts, not to mine) using these two tokens that I will save on shared preferences.
1) Are these two tokens enough to post to user's account?
2) How do I do to post something using these two tokens?. I can't seem to find the proper docs for my particular case, the twitter api handling for android is really poor.

I already solved it myself by using fabric and its TweetComposer class.....
first you need to initialize fabric on the bootstrap Class of your app
Fabric.with(this, new Twitter(authConfig));
then on the class you want to make the tweet you get the firebase instance to get the logged in user and then you set the twitter consumer key and secret that you got when you log in to firebase UI https://github.com/firebase/FirebaseUI-Android/blob/master/auth/README.md, for future reference to get the two tokens needed to tweet on user's behalf you can do it like the link specifies:
To retrieve the ID token that the IDP returned, you can extract an IdpResponse from the result Intent.
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
IdpResponse idpResponse = IdpResponse.fromResultIntent(data);
startActivity(new Intent(this, WelcomeBackActivity.class)
.putExtra("my_token", idpResponse.getIdpToken()));
}
}
Twitter also returns an AuthToken Secret which can be accessed with idpResponse.getIdpSecret().
and now you have everything you need:
mAuth = FirebaseAuth.getInstance();
if (mAuth.getCurrentUser() != null) {
// already signed in
twitter_consumer_key= preferences.getString("TWITTER_CONSUMER_KEY","");
twitter_consumer_secret= preferences.getString("TWITTER_CONSUMER_SECRET","");
TwitterAuthConfig authConfig = new TwitterAuthConfig(twitter_consumer_key, twitter_consumer_secret);
//setting up fabric
Fabric.with(this, new TwitterCore(authConfig), new TweetComposer());
}
and then let's say I want to tweet from a custom button onClick:
ImageButton tweetButton= (ImageButton) findViewById(R.id.tweet_button);
tweetButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
TweetComposer.Builder builder = new TweetComposer.Builder(mContext)
.text("just setting up my Fabric.");
builder.show();
}
});
the app will redirect you to the twitter app with the preseted message "just setting up my Fabric.". You can add pictures and videos too!
Hope that this helps someone in the future cause there is little info about fabric....

integrating with intents for ocr and zxing

I have an app, i used this code to integrate zxing
public Button.OnClickListener mScan = new Button.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
startActivityForResult(intent, 0);
}
};
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == 0) {
if (resultCode == RESULT_OK) {
String contents = intent.getStringExtra("SCAN_RESULT");
String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
// Handle successful scan
} else if (resultCode == RESULT_CANCELED) {
// Handle cancel
}
}
I have both zxing scanner as well as google goggles installed in my mobile phone. When i start the app and try to scan, I get the option to choose either the barcode scanner or the goggle app. I thought, hey let's try and use the goggle app for doing other stuff as well like OCR. I select the goggle option but the app does not have the take picture option within it. How do I integrate goggles also with my app? with full functionality?

I have no idea about how to integrate your app with Google Goggles. However, if you looking for an app that provide OCR function, you may use my app:
https://play.google.com/store/apps/details?id=sunbulmh.ocr
Here is a sample code that you can use in your app to get OCR service:
PackageManager pm = getPackageManager();
try {
pm.getPackageInfo("sunbulmh.ocr", PackageManager.GET_ACTIVITIES);
Intent LaunchIntent = pm.getLaunchIntentForPackage("sunbulmh.ocr");
LaunchIntent.setFlags(0);
startActivityForResult(LaunchIntent,5);
} catch (NameNotFoundException e) {
Uri URLURI = Uri.parse("http://play.google.com/store/apps/details?id=sunbulmh.ocr");
Intent intent = new Intent(Intent.ACTION_VIEW,URLURI);
startActivity(intent);
}
Then, get the result in onActivityResult():
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if(requestCode == 5){
String ocr_txt = data.getStringExtra(Intent.EXTRA_TEXT);
// ocr_txt contains the recognized text.
}
}
}

Unable to speak languages except English

In my android TTS application, I tried to speak out Japanese. So, I set the language to Japanese.
result = tts.setLanguage(Locale.JAPAN);
finalText = textField.getText().toString();
tts.speak(finalText , TextToSpeech.QUEUE_ADD, null);
This didn't work. So I set to
result = tts.setLanguage(Locale.JAPANESE);
finalText = textField.getText().toString();
tts.speak(finalText , TextToSpeech.QUEUE_ADD, null);
This also didn't work.
The wonderful case is, any other language except English is not working!!!!!!!!!!!!!!!
This is the text I tried to speak
私は英雄です。だから問題は何ですか？
So my question is, what is happening here? Can't it speak out other languages?
UPDATE
This started working as soon as I set the language in onInit() . Previously, I tried to set on user request, which means, onInit() is not called when the user manually change the language from US to Japanese. So, how can I call the OnInit() manually, without restarting the activity?

Write code as
in onCreate()
String Text = text.getText().toString();
tts.speak(Text, TextToSpeech.QUEUE_ADD, null);
Intent checkIntent = new Intent();
checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkIntent, MY_DATA_CHECK_CODE);
then
public void onInit(int status) {
// TODO Auto-generated method stub
if(status== TextToSpeech.SUCCESS){
int result= tts.setLanguage(Locale.US);
if(result==TextToSpeech.LANG_MISSING_DATA||result== TextToSpeech.LANG_NOT_SUPPORTED){
Log.e("TTS", "This Language is not Supported");
}else{
talk.setEnabled(true);
speakOut();
}
}
else{
Log.e("TTS", "Initialization Falied");
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == MY_DATA_CHECK_CODE) {
if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
// success, create the TTS instance
tts = new TextToSpeech(this, this);
}
else {
// missing data, install it
Intent installIntent = new Intent();
installIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
startActivity(installIntent);
}
}
}
this will give you the option of selecting the voice service there you can Download the Japnese language

Check the return value;
http://developer.android.com/reference/android/speech/tts/TextToSpeech.html#setLanguage(java.util.Locale)
It appears that if the locale you're trying to set is not available (on your phone) it will set the nearest available Locale which in your case might be only english

it not working because your default language select in your phone is English, you need to change it to your desired language or if the package is not available of the desired language you need to download it.
phone setting->language &input->google voice typing->languages.
yet your problem not solve than commenting me your problem.