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  1. F

    Send notification when the internet is disconnected

    Hello, how can I implement an event in my application to detect when the internet connection (wifi or mobile data) is disconnected automatically and send a notification?
  2. F

    String definition error

    public String SolicitudServidor(final Activity activity, final String Type, final String Name, final String Surname, final String Username, final String Password){ String URL, Response; if(Type.equals("Register")){...
  3. F

    Spinner Width

    Hello! How can I make the width of a Spinner sea equal to the width of the selected item?
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    View.Visibility(VISIBLE)

    Hi. My application displays a list (RelativeLayout) when a EditText is selected. password.setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { if(hasFocus){...
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    Change view position

    Hello! How can I change the position of the view when the user selects a TextInput?
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    How can I verify if a string contains at least one number?

    How can I verify if a string contains at least one number?
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    TextInputLayout crashes

    if (StringName.isEmpty()){ name.setError("Complete this."); }
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    JSONException

    Hello, I am new to this and I am developing a basic application in android studio: A registry of users with MySQL. When I start the application, I enter the data (Name, Surname, Email and Password) and I touch the registration button I get the following error: org.json.JSONException: Value <br...
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