I'm needing to get an integer from the user for one of my apps and I have tried using a text edit but it didn't seem to work, so I'm wanting to know another way of getting an integer from the user. The int will be positive numbers only and no more than 2 digits.
Use EditText
You can limit the number of digits like this
Update:
Then you need to add a listener
http://developer.android.com/reference/android/widget/TextView.html#addTextChangedListener(android.text.TextWatcher)
a relevant question:
android edittext onchange listener
You have to use EditText.. then from in Your Activity
String s = ed.getText().ToString();
int i = 0;
if(s!=null)
i= Integer.valueOf(s);
To make sure keyboard only show numbers,
make sure you add
android:input="number"
to your EditText in the XML
UPDATE
yourEditText.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
String s = yourEditText.getText().ToString();
int i = 0;
if(s!=null)
i= Integer.valueOf(s);
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
public void onTextChanged(CharSequence s, int start, int before, int count) {}
});
you can use properties in your XML .
use this line to limit input text in numbers in XML :
android:inputType="number"
and use this line to set your specific character:
android:digits="1234567890"
i think it is the best way for this purpose.
Related
I am working in an Android application.In my application there is a edit text. in that
edit text if user enters 12, it has to change dynamically as 12.00. which means it only
accept decimal values. if user enters as 12.3 then it should become 12.30.and if 12.35
then it should be 12.35 only. it will not allow user to enter more than two after dot.
Please help in this scenario?
Use a TextWatcher to handle dinamically the input, then inside the TextWatcher use something like DecimalFormat to change the text.
yourEditText.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
#Override
public void afterTextChanged(Editable s) {
// do something here
DecimalFormat form = new DecimalFormat("0.00");
String FormattedText=form.format(s.toString());
}
});
I have a Number Picker that allow user to enter some number within a fixed range.
By default the number will not allow the user to enter a number larger than the max set for the number picker.
However i would like to display a message when that happens. Is there a way to access the edittext in the number picker ? Thanks.
You can implement TextChangedListener that will register every change in the field so that you can act accordingly on it.
for example.
yourEditText = (EditText) findViewById(R.id.yourEditTextId);
yourEditText.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
// you can call or do what you want with your EditText here
yourEditText. ...
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
public void onTextChanged(CharSequence s, int start, int before, int count) {}
});
In Edittext Android :
How to implement this feature if user entered any valid numeric value it should get displayed in the form of decimal value.
e.g If user enters 4 then it should get displayed as 4.000 instead of only 4.
Also can be done using DONE button click handler of virtual keypad.
You can use like this
EditText et = (EditText)findViewById(R.id.myEditText);
et.addTextChangedListener(new TextWatcher(){
public void afterTextChanged(Editable s) {}
public void beforeTextChanged(CharSequence s, int start, int count, int after){}
public void onTextChanged(CharSequence s, int start, int before, int count){
//Check your et value and set it back.
// Retrieve 4.. set it to 4.000
}
});
Have you tried this on your XML?
android:inputType="numberDecimal"
Parse the string you are getting from editext to double or float in the click of a done button or wherever you want.
I have an application where user inputs text into EditText field. After user clicks OK (in keyboard input mode), a correct value is in the EditText (lets say "Smile").
if (answers.get(counter).getText().equals(opponentAnswers.get(counter)))
But this if statement fails, because the same EditText has the values that were suggested by T9 option, when user was inputing his answer (for example values of EditText would be "Smile Smiling Smiled"), while it should only have a value "Smile".
Any ideas how to solve this issue?
That's really weird. These are kind of guesses, but this is what I'd try next if I were you:
A. Instead of doing an equals against getText(), try doing a toString on getText(), so:
if (answers.get(counter).getText().toString().equals(opponentAnswers.get(counter)))
B. If that doesn't work then you could try adding a TextWatcher using addTextChangedListener on the EditText, and getting the value from that. Calling toString() on the editable returned in afterTextChanged might give you the value you want.
private class SearchTextWatcher implements TextWatcher {
#Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
}
#Override
public void afterTextChanged(Editable s) {
//Get the text the user sees
String textShownToUser = s.toString();
}
}
Hope this helps! Best of luck!
I am making an edittext, and I would like to force the user to enter a number less than 200, I have seen people showing how to limit the number of characters, but does anyone know how to limit the user input without using an 800 section if statement? ie. The user can enter any number between 1- 199 but they cannot enter the number 201.
first set ur edit text input type number and after that
edittext.addTextChangedListener(new TextWatcher(){
public void afterTextChanged(Editable s) {}
public void beforeTextChanged(CharSequence s, int start, int count, int after){}
public void onTextChanged(CharSequence s, int start, int before, int count){
String strEnteredVal = edittext.getText().toString();
if(!strEnteredVal.equals("")){
int num=Integer.parseInt(strEnteredVal);
if(num<200){
edittext.setText(""+num);
}else{
edittext.setText("");
}
}
});
I'm not clear whether you mean to limit the field to less than 200 characters, or to a number value less than 200 (e.g. "199"). If the latter, set the property android:inputType="number", and then add an OnFocusChangeListener to the EditText, implementing the onFocusChange() method to check the value of the EditText and change/alert/remove if not valid.
Number Spinner/Picker for Android
Found a handy number spinner for Android based on the Google internal number spinner (not yet made public) used in the Android Time Picker Dialog.
It is released under the Apache 2.0 and can be found
http://www.quietlycoding.com/?p=5
have
mStart = DEFAULT_MIN;
mEnd = DEFAULT_MAX;
At the top of the java file I have declared the DEFAULT_MAX and DEFAULT_MIN as such:
private static final int DEFAULT_MAX = 200;
private static final int DEFAULT_MIN = 0;