Table of Contents
How do you get the value from edit text?
getText(); demo. setText(); In below code, we took four EditText name, lastname, mobile and address and then use findviewbyid to looks through XML layout and returns reference to a view (In this case this is an EditText) and after that get text from all these EditText and set them in a TextView in a form of string.
What is edit text in Android Studio?
A EditText is an overlay over TextView that configures itself to be editable. It is the predefined subclass of TextView that includes rich editing capabilities.
How do you edit a text box on Android?
Step 1: Create a new project in Android Studio and name it EditTextExample. Step 2: Now Open res -> layout -> xml (or) activity_main. xml and add following code. In this code we have added multiple edittext and a button with onclick functionality.
How can you tell if an edit text is empty?
Check EMPTY = new Check>() { @Override public boolean checkViewProperty(EditText view, int index) { return TextUtils. isEmpty(view. getText()); } };
Which method is used to get the String value from an EditText?
We have used getText() method to get the text entered in the EditText views. But getText() method returns an Editable instance and therefore we have typecasted it to convert it into String for further use. This can be done by using the toString() method.
What is the use of TextWatcher in Android?
EditText uses TextWatcher interface to watch change made over EditText. For doing this, EditText calls the addTextChangedListener() method.
How do I get kotlin from EditText value?
Android EditText in Kotlin
- Add a EditText in activity_main. xml file.
- Add a Button in activity_main. xml file.
- Open MainActivity. kt file and set OnClickListner for the button to get the user input from EditText and show the input as Toast message.
What are the attributes of edit text?
Android EditText Attributes
| Attribute | Description |
|---|---|
| android:text | It is used to set the text. |
| android:hint | It is used to display the hint text when text is empty |
| android:textColor | It is used to change the color of the text. |
| android:textColorHint | It is used to change the text color of hint text. |
What is an editable android?
Editable items in an app allow users to enter text. Android offers several ways for developers to label Views in an app’s user interface. For editable items in an interface, some of these ways of labeling can improve accessibility.
What is a TextView in android?
In android, TextView is a user interface control that is used to set and display the text to the user based on our requirements. In android, we can create a TextView control in two ways either in XML layout file or create it in Activity file programmatically.
How do you check if an edit text is empty or not in android?
“android studio check if edittext is empty” Code Answer
- if (TextUtils. isEmpty(editText. getText(). toString())) {
- Toast. makeText(MainActivity. this, “Empty field not allowed!”,
- Toast. LENGTH_SHORT). show(); }
- Toast. makeText(MainActivity. this, “Proceed..”,
- Toast. LENGTH_SHORT). show(); }
How do you convert a string to a double in Kotlin?
The toDouble() method converts the string to a Double, It returns NumberFormatException if it sees the string is not a valid representation of a Double. The toDoubleOrNull() method parses the string to a Double, It returns a null value if it finds the string is not a valid representation of a Double.