android studio – How to put a spacing every 4 characters in an EditText?

I am doing the bank card registration interface and I want that when the user writes his card number every 4 characters of an automatic spacing, without the user having to give the spacing. Something like this: 1234 5678 9012 3456 This in an EditText, using Android Studio I hope you can help me

How to reproduce this edittext attribute in Java on Android

How would you get the same effect of having a phone keypad with only digits that you would get using these xml attributes?

android:inputType="phone"
android:digits="0123456789"

using java and setInput or setRawInput?

java – How can I paste the result of the Zxing scan into my two editText?

I am developing a simple project**enter image description here**t that QR code scanning is an alternative option to log in. I am trying to use Zxing. I tried almost all the tutorials on YouTube, but I can't find my answer. What I want is that when I scan a QR code I can paste the result in my editTextUser and editTextPass. Thank you very much for your help. I don't know where to ask, so I hope you can help. I really appreciate your help.

ScanResult public class extends AppCompatActivity implements ZXingScannerView.ResultHandler {

private ZXingScannerView mScannerView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_scan_result);

    mScannerView = new ZXingScannerView(this);   // Programmatically initialize the scanner view
    setContentView(mScannerView);                // Set the scanner view as the content view
}

@Override
public void onResume() {
    super.onResume();
    mScannerView.setResultHandler(this); // Register ourselves as a handler for scan results.
    mScannerView.startCamera();          // Start camera on resume
}

@Override
public void onPause() {
    super.onPause();
    mScannerView.stopCamera();           // Stop camera on pause
}

@Override
public void handleResult(Result rawResult) {
    // Do something with the result here
    // Log.v("tag", rawResult.getText()); // Prints scan results
    // Log.v("tag", rawResult.getBarcodeFormat().toString()); // Prints the scan format (qrcode, pdf417 etc.)


    Intent returnIntent = new Intent();
    returnIntent.putExtra("scanned",rawResult.getText());
    setResult(Activity.RESULT_OK,returnIntent);
    finish();

    //LoginScan.textView4.setText(rawResult.getText());
    //LoginScan.textView6.setText(rawResult.getText());
    //onBackPressed();


    // If you would like to resume scanning, call this method below:
    //mScannerView.resumeCameraPreview(this);
}



}

applications: onKeyPreIme is not called in Custom EditText

For an EditText, I wanted to prevent the virtual keyboard from closing when the Back button is pressed and I only have the default behavior of returning to the previous activity. For this, I created a custom EditText in which I implemented the following code in onKeyPreIme.

So far, what I have works fine, but when I try to change the background color of the editing text in the xml or programmatically or change the visibility, onKeyPreIme no longer captures the back button and just closes the keyboard.

public class MyEditText extends AppCompatEditText {


    public void setHandleDismissingKeyboard(
            handleDismissingKeyboard handleDismissingKeyboard) {
        this.handleDismissingKeyboard = handleDismissingKeyboard;
    }

    private handleDismissingKeyboard handleDismissingKeyboard;

    public interface handleDismissingKeyboard {
        public void dismissKeyboard();
    }

    public MyEditText(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
    }

    public MyEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub
    }

    public MyEditText(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        // TODO Auto-generated constructor stub
    }


    @Override
    public boolean onKeyPreIme(int keyCode, KeyEvent event) {
        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK
                && event.getAction() == KeyEvent.ACTION_UP) {
            handleDismissingKeyboard.dismissKeyboard();
            return true;
        }
        return super.dispatchKeyEvent(event);
    }
}

and in my fragment, in onViewCreated I have the following code:

final MyEditText input = (MyEditText) view.findViewById(R.id.input_card);
input.requestFocus();

input.setHandleDismissingKeyboard(new MyEditText.handleDismissingKeyboard() {
            @Override
            public void dismissKeyboard() {
                getActivity().onBackPressed();
            }
});

text entry: perform the action in EditText press and hold on android while keeping the icon enter the keyboard?

I want to perform an action when you press enter in android editText. I have tried several ways using EditorInfo.IME_ACTION_DONE, they work, but the problem is that it shows a tic icon, which I do not want. I want it to look like the default input button on the keyboard.

How do I manage the event pressed and keep the way of entering?

Is there something like EditorInfo.IME_ACTION_ENTER to do my job?

My approach (showing the tick icon):

editorEditText.setOnEditorActionListener (new TextView.OnEditorActionListener () {
@Cancel
public boolean onEditorAction (TextView textView, int actionId, KeyEvent keyEvent) {
if ((actionId == EditorInfo.IME_ACTION_DONE) {
Toast.makeText (EditorActivity.this, "working", Toast.LENGTH_SHORT) .show ();

true returns
}


false return;
}
});

Note:

I want it to look like getting in shape because I'm doing a text editor, I'm trying to change to another edit text by pressing enter and I do not want it to look unnatural with a check mark. That's why I do not want the tick symbol.

android – Validate EditText within AlertDialog

I have one AlertDialog and inside of him I have one EditText and I need to validate and after validating execute the method send email (), as I do?

my AlertDialog :

AlertDialog.Builder boxDialog = new AlertDialog.Builder (getContext ());
caixaDialog.setCancelable (false);
View vView = getLayoutInflater (). Inflate (R.layout.envio_satisfacción_ruim, null);

txtMensageSatEmail = (TextView) vView.findViewById (R.id.txt_Mensage_sat_email);
txtMensagemSatEmail.setFocusable (true);

cuadroDialog.setPositiveButton ("Send", new DialogInterface.OnClickListener () {
(in the event of an error)

(txtMensageSatEmail.getText (). length () == 0) {
txtMessageEmail.setError ("required field");
txtMensagemSatEmail.setFocusable (true);
txtMensagemSatEmail.requestFocus ();
}

send email ();
}
})

.setNegativeButton ("Cancel", new DialogInterface.OnClickListener () {
(in the event of an error)
dialog.cancel ();
}
});

caixaDialog.setView (vview);
AlertDialog dialog = cuadroDialog.create ();
Dialog.Show ();

Android in a simple activity (Edittext, image) data is not displayed

I am very new to Android and with this name is a very basic error. From the start menu a very basic activity, get the name and the image of the user. The data is saved in the room without problem, when we call again the activity appears empty. When running in Debug mode I can see that the data is read from the database and when I get to the key that closes inCreate the data are loaded into the variables, but pressing F7 again the design appears empty. If I execute it step by step, sometimes the name and the image appear before I finish arriving at the end. The data is but is not made as it appears. I already appreciate any help you can give me.

Design


android: id = "@ + id / edtcontrol"
Android: layout_width = "match_parent"
Android: layout_height = "match_parent"
tools: context = ". activity.mysetting">







Code.java

                @Cancel
public void onCreate (@Nullable Bundle savedInstanceState) {
super.onCreate (savedInstanceState);
setContentView (R.layout.mysetting);

submit = (Button) findViewById (R.id.submit);
edttextname = (EditText) findViewById (R.id.edittext_name);

img_user = (RoundRectCornerImageView) findViewById (R.id.imguser);

setVdata ();

submit.setOnClickListener (new View.OnClickListener () {
@Cancel
public vacuum onClick (see v) {
addvnow ();
Toast.makeText (mysetting.this, "Saved", Toast.LENGTH_SHORT) .show ();
}
});

img_user.setOnClickListener (new View.OnClickListener () {
@Cancel
public vacuum onClick (see v) {

selectimguser = true;
EasyImage.openChooserWithDocuments (mysetting.this,
"Choose your image", 0);
}
});

}


@Cancel
public void onActivityResult (int requestCode, int resultCode, Intent data) {
super.onActivityResult (requestCode, resultCode, data);

EasyImage.handleActivityResult (requestCode, resultCode, data, mysetting.this, new DefaultCallback () {

@Cancel
Public void onImagesPicked (List imagesFiles, source EasyImage.ImageSource, int type) {
// Handle images
if (selectimgvet) {
imguser = imagesFiles.get (0);
displaySelectedImage2 (false);

img_user.setFocusable (true);
}
}

@Cancel
public void onImagePickerError (Exception e, source EasyImage.ImageSource, int type) {
// Some error handling
}
});
}

private void displaySelectedImage2 (Boolean compression) {
try {

Bitmap myBitmap = BitmapFactory.decodeFile (imgvet.getAbsolutePath ());
if (compress) {
myBitmap = CompressAndSaveImage.ScaledPhotoBitmapToFile (myBitmap, new ByteArrayOutputStream ());
}
if (myBitmap == null) {
img_user.setImageResource (R.drawable.placeholder);

} else {
img_user.setImageBitmap (myBitmap);
}

} catch (exception e) {
img_user.setImageResource (R.drawable.placeholder);

}

}


public void setVdata () {
new AsyncTask <Void, Void, List> () {
@Cancel
Protected list doInBackground (Void ... voids) {
try {
vetdataModel = AppDatabase.getInstance (mysetting.this) .vetdataDao (). loadset ();


} catch (exception e) {
}
zero return

}
}.run();

if (vetdataModel == null) {
// mysetting.this.finish ();
he came back;
}

edttextname.setText (vetdataModel.getname ());

try {
System.out.println ("IMAGE2ES:" + vetdataModel.getImguser (). Length);
if (vetdataModel.getImguser (). length> 0) {
imguser = Methods.byteArrayToFile (mysetting.this, vetdataModel.getImguser (), "2");

} else {
imguser = null;
}
System.out.println ("IMAGE2ES @:" + imguser);
} catch (exception e) {
}
displaySelectedImage2 (false);

}

Android Send text to EditText of another Application for the package and id

I have difficulties, I search the internet for something that will help me send a text from my application to another application.
Let's say I'm going to use facebook as an example:

1 Send Email to EditText on facebook where is this E-mail
2 Send Password to EditText of facebook where is the Password
3 Click on the registration button.

Help please