The EditText is the standard text entry widget in Android apps. If the user needs to enter text into an app, this is the primary way for them to do that.

EditText

There are many important properties that can be set to customize the behavior of an EditText. Several of these are listed below. Check out the official text fields guide for even more input field details.

Usage

An EditText is added to a layout with all default behaviors with the following XML:

<EditText
    android:id="@+id/et_simple"
    android:layout_height="wrap_content"
    android:layout_width="match_parent">
</EditText>

Note that an EditText is simply a thin extension of the TextView and inherits all of the same properties.

Retrieving the Value

Getting the value of the text entered into an EditText is as follows:

EditText simpleEditText = (EditText) findViewById(R.id.et_simple);
String strValue = simpleEditText.getText().toString();

Further Entry Customization

We might want to limit the entry to a single-line of text (avoid newlines):

<EditText
  android:singleLine="true"
  android:lines="1"
/>

You can limit the characters that can be entered into a field using the digits attribute:

<EditText
  android:inputType="number"
  android:digits="01"
/>

This would restrict the digits entered to just "0" and "1". We might want to limit the total number of characters with:

<EditText
  android:maxLength="5"
/>

Using these properties we can define the expected input behavior for text fields.

Adjusting Colors

You can adjust the highlight background color of selected text within an EditText with the android:textColorHighlight property:

<EditText
    android:textColorHighlight="#7cff88"
/>

Displaying Placeholder Hints

You may want to set the hint for the EditText control to prompt a user for specific input with:

<EditText
    ...
    android:hint="@string/my_hint">
</EditText>

Hints

Changing the bottom line color

Assuming you are using the AppCompat library, you can override the styles colorControlNormal, colorControlActivated, and colorControlHighlight:

<style name="Theme.App.Base" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="colorControlNormal">#d32f2f</item>
    <item name="colorControlActivated">#ff5722</item>
    <item name="colorControlHighlight">#f44336</item>
</style>

If you do not see these styles applied within a DialogFragment, there is a known bug when using the LayoutInflater passed into the onCreateView() method.

The issue has already been fixed in the AppCompat v23 library. See this guide about how to upgrade. Another temporary workaround is to use the Activity's layout inflater instead of the one passed into the onCreateView() method:

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = getActivity().getLayoutInflater().inflate(R.layout.dialog_fragment, container);
  }

Listening for EditText Input

Check out the basic event listeners cliffnotes for a look at how to listen for changes to an EditText and perform an action when those changes occur.

Displaying Floating Label Feedback

Traditionally, the EditText hides the hint message (explained above) after the user starts typing. In addition, any validation error messages had to be managed manually by the developer.

With the TextInputLayout you can setup a floating label to display hints and error messages. You can find more details here.

Text fields can have different input types, such as number, date, password, or email address. The type determines what kind of characters are allowed inside the field, and may prompt the virtual keyboard to optimize its layout for frequently used characters.

By default, any text contents within an EditText control is displayed as plain text. By setting the inputType attribute, we can facilitate input of different types of information, like phone numbers and passwords:

<EditText
    ...
    android:inputType="phone">
</EditText>

Most common input types include:

Type	Description
textUri	Text that will be used as a URI
textEmailAddress	Text that will be used as an e-mail address
textPersonName	Text that is the name of a person
textPassword	Text that is a password that should be obscured
number	A numeric only field
phone	For entering a phone number
date	For entering a date
time	For entering a time
textMultiLine	Allow multiple lines of text in the field

The android:inputType also allows you to specify certain keyboard behaviors, such as whether to capitalize all new words or use features like auto-complete and spelling suggestions.
Here are some of the common input type values that define keyboard behaviors:

Type	Description
textCapSentences	Normal text keyboard that capitalizes the first letter for each new sentence
textCapWords	Normal text keyboard that capitalizes every word. Good for titles or person names
textAutoCorrect	Normal text keyboard that corrects commonly misspelled words

You can set multiple inputType attributes if needed (separated by '|').
Example:

<EditText
    android:id="@+id/postal_address"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:hint="@string/postal_address_hint"
    android:inputType="textPostalAddress|
                       textCapWords|
                       textNoSuggestions" />

You can see a list of all available input types here.

inputype attribute in EditText widget: (tested on Android 4.4.3 and 2.3.3)

<EditText android:id="@+id/et_test" android:inputType="?????"/>

textLongMessage= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: yes. Case: lowercase. Suggestion: yes. Add. chars: , and . and everything

textFilter= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: yes. Case: lowercase. Suggestion: no. Add. chars: , and . and everything

textCapWords= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: yes. Case: Camel Case. Suggestion: yes. Add. chars: , and . and everything

textCapSentences= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: yes. Case: Sentence case. Suggestion: yes. Add. chars: , and . and everything

time= Keyboard: numeric. Enter button: Send/Next. Emotion: no. Case: -. Suggestion: no. Add. chars: :

textMultiLine= Keyboard: alphabet/default. Enter button: nextline. Emotion: yes. Case: lowercase. Suggestion: yes. Add. chars: , and . and everything

number= Keyboard: numeric. Enter button: Send/Next. Emotion: no. Case: -. Suggestion: no. Add. chars: nothing

textEmailAddress= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: no. Case: lowercase. Suggestion: no. Add. chars: @ and . and everything

(No type)= Keyboard: alphabet/default. Enter button: nextline. Emotion: yes. Case: lowercase. Suggestion: yes. Add. chars: , and . and everything

textPassword= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: no. Case: lowercase. Suggestion: no. Add. chars: , and . and everything

text= Keyboard: Keyboard: alphabet/default. Enter button: Send/Next. Emotion: yes. Case: lowercase. Suggestion: yes. Add. chars: , and . and everything

textShortMessage= Keyboard: alphabet/default. Enter button: emotion. Emotion: yes. Case: lowercase. Suggestion: yes. Add. chars: , and . and everything

textUri= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: no. Case: lowercase. Suggestion: no. Add. chars: / and . and everything

textCapCharacters= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: yes. Case: UPPERCASE. Suggestion: yes. Add. chars: , and . and everything

phone= Keyboard: numeric. Enter button: Send/Next. Emotion: no. Case: -. Suggestion: no. Add. chars: *** # . - / () W P N , +**

textPersonName= Keyboard: alphabet/default. Enter button: Send/Next. Emotion: yes. Case: lowercase. Suggestion: yes. Add. chars: , and . and everything


Note: Auto-capitalization setting will change the default behavior.

Note 2: In the Numeric keyboard, ALL numbers are English 1234567890.

Note 3: Correction/Suggestion setting will change the default behavior.

Hiding Softkeyboard is a basic requirement usually when working with EditText. The softkeyboard by default can only be closed by pressing back button and so most developers use InputMethodManager to force Android to hide the virtual keyboard calling hideSoftInputFromWindow and passing in the token of the window containing your focused view. The code to do the following:

public void hideSoftKeyboard()    
{
        InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
        inputMethodManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 0);    
}

The code is direct, but another major problems that arises is that the hide function needs to be called when some event occurs. What to do when you need the Softkeyboard hidden upon pressing anywhere other than your EditText? The following code gives a neat function that needs to be called in your onCreate() method just once.

public void setupUI(View view) 
{
        String s = "inside";
        //Set up touch listener for non-text box views to hide keyboard.
        if (!(view instanceof EditText)) {

            view.setOnTouchListener(new View.OnTouchListener() {

                public boolean onTouch(View v, MotionEvent event) {
                    hideSoftKeyboard();
                    return false;
                }

            });
        }

        //If a layout container, iterate over children and seed recursion.
        if (view instanceof ViewGroup) {

            for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {

                View innerView = ((ViewGroup) view).getChildAt(i);

                setupUI(innerView);
            }
        }    
}

This example will help to have the Edit text with the icon at the right side.

Note: In this just I am using setCompoundDrawablesWithIntrinsicBounds, So if you want to change the icon position you can achieve that using setCompoundDrawablesWithIntrinsicBounds in setIcon.

public class MKEditText extends AppCompatEditText {

    public interface IconClickListener {
        public void onClick();
    }

    private IconClickListener mIconClickListener;

    private static final String TAG = MKEditText.class.getSimpleName();

    private final int EXTRA_TOUCH_AREA = 50;
    private Drawable mDrawable;
    private boolean touchDown;

    public MKEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public MKEditText(Context context) {
        super(context);
    }

    public MKEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public void showRightIcon() {
        mDrawable = ContextCompat.getDrawable(getContext(), R.drawable.ic_android_black_24dp);

        setIcon();
    }

    public void setIconClickListener(IconClickListener iconClickListener) {
        mIconClickListener = iconClickListener;
    }

    private void setIcon() {
        Drawable[] drawables = getCompoundDrawables();

        setCompoundDrawablesWithIntrinsicBounds(drawables[0], drawables[1], mDrawable, drawables[3]);

        setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
        setSelection(getText().length());
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        final int right = getRight();
        final int drawableSize = getCompoundPaddingRight();
        final int x = (int) event.getX();
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                if (x + EXTRA_TOUCH_AREA >= right - drawableSize && x <= right + EXTRA_TOUCH_AREA) {
                    touchDown = true;
                    return true;
                }
                break;
            case MotionEvent.ACTION_UP:
                if (x + EXTRA_TOUCH_AREA >= right - drawableSize && x <= right + EXTRA_TOUCH_AREA && touchDown) {
                    touchDown = false;
                    if (mIconClickListener != null) {
                        mIconClickListener.onClick();
                    }
                    return true;
                }
                touchDown = false;
                break;

        }
        return super.onTouchEvent(event);
    }
}

If you want to change the touch area you can change the EXTRA_TOUCH_AREA values default I gave as 50.

And for Enable the button and click listener you can call from your Activity or Fragment like this,

MKEditText mkEditText = (MKEditText) findViewById(R.id.password);
mkEditText.showRightIcon();
mkEditText.setIconClickListener(new MKEditText.IconClickListener() {
            @Override
            public void onClick() {
              // You can do action here for the icon.
               
            }
        });