validation – How to restrict TextView to allow only alpha-numeric characters in Android-ThrowExceptions

Exception or error: I have a TextView in my app that i want a user to be able to only enter alpha-numeric characters in. How can this be done? Thanks! How to solve: In the XML, put this: android:digits=”abcdefghijklmnopqrstuvwxyz1234567890 ” ### Here is a better solution……… https://groups.google.com/forum/?fromgroups=#!topic/android-developers/hS9Xj3zFwZA InputFilter filter = new InputFilter() { public CharSequence …

Android Email Validation on EditText-ThrowExceptions

Exception or error: I have one edittext and I would to to write email validation in my Editttext this is a xml code <EditText android:id=”@+id/mail” android:layout_width=”match_parent” android:layout_height=”48dp” android:layout_alignLeft=”@+id/phone” android:layout_below=”@+id/phone” android:layout_marginRight=”33dp” android:layout_marginTop=”10dp” android:background=”@drawable/edit_background” android:ems=”10″ android:hint=”E-Mail” android:inputType=”textEmailAddress” android:paddingLeft=”20dp” android:textColor=”#7e7e7e” android:textColorHint=”#7e7e7e” > </EditText> and this is a java code emailInput = mail.getText().toString().trim(); emailPattern = “^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$”; if (emailInput.matches(emailPattern)) { …

Validation allow only number and characters in edit text in android-ThrowExceptions

Exception or error: In my application i have to validate the edittext. It should only allow character, digits, underscore and hypen. Here is my code: edittext.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { // TODO Auto-generated method stub } @Override public void beforeTextChanged(CharSequence s, int start, int count, …

Email and phone Number Validation in android-ThrowExceptions

Exception or error: I have a registration form in my application which I am trying to validate. I’m facing some problems with my validation while validating the phone number and email fields. Here is my code: private boolean validate() { String MobilePattern = “[0-9]{10}”; //String email1 = email.getText().toString().trim(); String emailPattern = “[a-zA-Z0-9._-]+@[a-z]+\\.+[a-z]+”; if (name.length() > …

java – Android Email EditText Validation-ThrowExceptions

Exception or error: This question already has answers here: How should I validate an e-mail address? (32 answers) Closed 6 years ago. I have this EditText definition: <EditText android:layout_height=”wrap_content” android:layout_width=”fill_parent” android:inputType=”textEmailAddress” android:id=”@+id/EmailText”/> Notice the EditText has the inputType defined with an email address specification. Does Android have anything built in to validate an email address …