How to disable letters in keyboard (leave only digits)? - android

I'm developing Android application, and I need to disable letters for user's keyboard in order to allow user to input only digits in EditText. Please, tell me, is it possible?

add android:inputType="number" to the EditText in the layout xml.
More information on inputType's can be found at http://developer.android.com/reference/android/widget/TextView.html#attr_android:inputType
You can also go further and do something like:
<EditText
android:inputType="number"
android:digits="0123456789"
/>

EditText input = new EditText(this);
input.setInputType(InputType.TYPE_CLASS_NUMBER);
OR
Using XML
android:inputType="number"

Related

Can I use numberPassword input type and still see the input?

Can I use numberPassword as input type and still see the input?
My goal is to have a 0-9 keyboard with as few as possible other keys (that's why I prefered numberPassword over phone), but the user should still be able to see what he just typed.
This is what I have, but right now the passwords are hidden behind asterisks.
android:digits="1234567890"
android:inputType="numberPassword"
Note: I also tried setInputType(InputType.TYPE_NUMBER_VARIATION_PASSWORD), which made the input visible, but changed the keyboard from numbers-only to a regular keyboard. I need they keyboard to display numbers-only though.
In Java, just do this:
edittext.setTransformationMethod(PasswordTransformationMethod.getInstance());
If you wanted to hide the password later on, you would just do this:
editText.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
This did the job:
uEditText = (EditText) findViewById(R.id.editText);
uEditText.setTransformationMethod(null);
There are different ways you can solve this problem
You can use use TextInputEditText with TextInputLayout like below
<android.support.design.widget.TextInputLayout
android:id="#+id/etPasswordLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:passwordToggleEnabled="true"
android:layout_marginBottom="#dimen/login_spacing_bottom">
<android.support.design.widget.TextInputEditText
android:id="#+id/etPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/fragment_login_password_hint"
android:inputType="textPassword"/>
</android.support.design.widget.TextInputLayout>
With passwordToggleEnabled, you can toggle between asterisk and password values
You can use the Transformation class to toggle password asterisk and value like below
edittextObject.setTransformationMethod(PasswordTransformationMethod.getInstance());
You can create a custom keyboard with the values you want to display in your keyboard. You can see how to achieve this in this tutorial I wrote about custom keyboard

How show default keyboard number in Edittext?

I want to input EditText som characters:
android:digits="1234567890-_##."
If I don't set inputType keyboard input Text is default.
I want show number keyboard show default.
But:
If in EditText design ,i set:
android:inputType="number"
or
android:inputType="phone"
EditText don't show key (#,_)
How show default keyboard number (allow input digits="1234567890-_##.") in Edittext?
Use this :
<EditText
android:id="#+id/ed1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text=""
android:inputType="number"
android:digits="1234567890-_##."/>
It works for me and allow me to insert this characters "1234567890-_##." only.
Hope this will help you.
Thanks.

How to open numeric keyboard when click on EditText?

I read several other posts and using input.setInputType(TYPE_NUMBER_FLAG_DECIMAL); does open the keyboard but its not the numeric keyboard
add android:inputType="number" to your edittext in your xml, it will automatically open numeric keyboard when you will click inside edittext.
Add android:inputType="number" in xml will automatically open numeric keyboard when click on EditText, but this will allow you to enter characters only numbers, and if you wanna enter other characters, you may try this:
android:inputType="number"
android:digits="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
You can add the following to your EditText block in XML file:
android:inputType="phone"
android:digits="1234567890"
OR
android:inputType="number"
Add this line in your edittext xml, clean build and run it. It should works.
android:inputType="number"

Opening the numpad of the device [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Open a numeric keyboard without forcing the EditText to be numeric only
In my app i have an EditText field which accepts only integer values. so i thought it would be better to open the numpad automatically instead of the alphabetics when i click on this EditText.
How can i achieve this??
in your xml file when defining your EditText, you add your inputType as Number
android:inputType="number"
Using xml layout attributes
For this, you can use several xml attributes to your EditText xml definition (see android:inputType for available options)
Examples:
<EditText android:inputType="phone" ...
<EditText android:inputType="number" ...
<EditText android:inputType="numberSigned" ...
<EditText android:inputType="numberDecimal" ...
You can also both hint android to show digital keyboard and restrict input to acceptable characters with android:numeric
Examples:
<EditText android:numeric="integer" ...
<EditText android:numeric="signed" ...
<EditText android:numeric="decimal" ...
Programatically
Use EditText.setRawInputType(int) with constants such as TYPE_CLASS_NUMBER you will find in android:inputType
or
EditText editView = new EditText(this);
editView.setKeyListener(new NumberKeyListener())
EditText editView = new EditText(this);
editView.setKeyListener(new DigitsKeyListener());
Hope this help
See TextView Documentation as EditText extends from it :
http://developer.android.com/reference/android/R.styleable.html#AutoCompleteTextView_inputType

Warning on EditText

I'm trying to define an EditText but this warning is shown:
This text field does not specify an inputType or a hint.
The code in main.xml is:
<EditText android:id="#+id/input"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/textTest" />
How can I fix it?
You could add a hint :
android:hint="This will appear to the user if he didn't enter something yet in the EditText"
and a inputType so you could present to the user a better suited soft keyboard for the text he is suposed to enter in the EditText:
android:inputType="number"
will present a soft keyboard with only numbers and various signs.
Those are just warnings, you could ignore them but is better for the user to implement them.
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
>
I think You should add input type.......
This is a known issue. Sometimes it doest work with changing to:
android:inputType="text"
I got it to work by setting:
android:inputType="textNoSuggestions"
Hope this helps
Above all are the solutions but before that you should understand what does that warnig mean.
Hint:- Hint is the text shown to user before writing anything over.
For eg. if you are putting a edittext where you want user to add his
name then you can write
<Edittext
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:hint="Enter Name"/>
Input Type:- This is the xml tag that is to be used within edittext to let edittext to follow that particular restriction. if you are giving inputtype:number then user would be able to enter only numbers. There are several input type fields are there for that you can refer official developer site.

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