Develop Reference

How to get the selected cursor position in EditText?

There is an EditText, what I want is when I select it ,I should get the cursor position. The maximum length of the edittext is 13.
Also in my edittext, the first three character's type is text and the other character's type is number. If the first three characters are selected, the input type of keyboard should show text. And if any other characters are selected ,then the input type should be number. How to do this?

I think this code can help you ❤ :
Class Code :
edittext = (EditText) findViewById(R.id.edtxt);
edittext.setInputType(InputType.TYPE_CLASS_TEXT);
edittext.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(final CharSequence s, int start, int before, int count) {
if (edittext.getText().length() < 3 ) {
edittext.setInputType(InputType.TYPE_CLASS_TEXT);
}
else if (edittext.getText().length() == 3 ) {
edittext.setInputType(InputType.TYPE_CLASS_NUMBER);
}}
#Override
public void afterTextChanged(Editable s) {
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
});}}
Xml Code :
<EditText
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:maxLength="13"
android:id="#+id/edtxt"
android:ems="10"/>

Calculation with textWatcher android

In my project I have 7 EditText field.
User will only need to fill their own value in first two EditText.
I need a series calculation like this...
(after user input) subtract ed1-ed2 the result automatically show in ed3 field.
multiply ed3*2 = result show in ed4 field automatically.
multiply ed3*3= result will show in ed5 field.
multiply ed3*4=result will show in ed6 field.
Finally sum of ed4+ed5+ed6= result will show in ed7 field automatically.
So how to do it any one please help.
Thank you in Advance.

All EditText use a same TextWatcher. A simple solution like this.
EditText et1;
EditText et2;
TextWatcher textWatcher = new 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) {
int num1 = Integer.valueOf(et1.getText().toString()); // Make sure you get a number
int num2 = Integer.valueOf(et2.getText().toString());
// do your calculation
}
#Override
public void afterTextChanged(Editable s) {
}
};
et1.addTextChangedListener(textWatcher);
et2.addTextChangedListener(textWatcher);

Changing textview on edittext ( when possible without a button)

I'm kinda new to java programming for android, so if i make stupid mistakes, i'm sorry.
So basically, what i wanna make is an app where if you type in the answer correctly, the next textview is gonna be displayed. And when the next textView is displayed, you're needing to give a answer to that textView, when the answer is given correctly. The textview changes again. And so on.
Does anybody have an idea how to do this?
If you don't undarstand what im saying, here is a example:
public class Game extends AppCompatActivity {
public static EditText editText_ans;
public static TextView textView_1;
String enteredText = editText.getText().toString();
If(enteredText = 3 && textView_1 = #string/1+2){
setText.textView_1(#string/3+4)
}
If(enteredText = 7 && textView_1 = #string/3+4){
setText.textView_1("100 - 23")
I'm really stuck and i hope that you guys wanna help me.

If you wanted to change the view without button you can use method addTextChangeListner() which will notify you when when the text hasbeen change for particular edittext.
edittext.addTextChangedListener(textWatcher);
private final TextWatcher textWatcher = new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
textView.setVisibility(View.VISIBLE);
}
public void afterTextChanged(Editable s) {
if (s.length() == 0) {
textView.setVisibility(View.GONE);
} else{
textView.setText("You have entered : " + editText.getText());
}
}
};

int x=0; //to keep track of qustions
private List<String> mQuestionList=new ArrayList<>(); //array of question
private List<String> mAnswerList=new ArrayList<>(); //array of question answer
displayquestion.settext(mQuestionList.get(x);//displayquestion is textview
//nextquestion is the button when user click it will first check answer and than move to next question if answer is correct
nextquestion.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String answer=editText.getText().toString();
if(answer.equal(mAnswerList.get(x)){
x=x+1;
displayquestion.settext(mQuestionList.get(x); //answer is correct display next quesion
}else{
//wrong answer
}
}
});

Android when my text exceeded the width horizontal programatically [duplicate]

This question already has answers here:
How to adjust text font size to fit textview
(23 answers)
Closed 7 years ago.
I need to know how I can get the condition in the onclick, my edittext is a singleline and I want to know when the text is exceeded, for example my edittext has 6 characters "HOLAHI" I add a new character and this show "HOL...".
I want to know until to set the 7th character to change the size font.

Look here: How to adjust text font size to fit textview
Overview:
Create a CustomTextView
Extend TextView
override method onMeasure()
Do your calculations on the text width [Hint: get width by calling this.getWidth()]
Set calculated text size [Hint: use this.setTextSize()]

You can check the content of your EditText should ellipsize by the method provided in TextUtils, the following code is a simple example.
EditText editText = new EditText(this);
editText.addTextChangedListener(new 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) {
String ellipseString = TextUtils.ellipsize(s, editText.getPaint(), editText.getWidth(), TextUtils.TruncateAt.END, false, new TextUtils.EllipsizeCallback() {
#Override
public void ellipsized(int start, int end) {
}
}).toString();
if (ellipseString.contains("\u2026")) {
Log.d(TAG, "ellipse");
}
}
});

Issue Formatting EditText for Currency

All- I have been struggling with this for a while and have looked at all the other questions about this sort of thing but I just can't figure it out: I have an edttext field that needs to be formatted for currency. I have tried the code in all of the other questions relating to this but no matter what I try it just doesn't work. Here is my code:
EditText text = (EditText)findViewById(R.id.edit_bill);
text.setRawInputType(Configuration.KEYBOARD_12KEY);
text.addTextChangedListener(new TextWatcher(){
EditText text = (EditText)findViewById(R.id.edit_bill);
DecimalFormat dec = new DecimalFormat("0.00");
public void afterTextChanged(Editable arg0) {
}
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
}
public void onTextChanged(CharSequence s, int start,
int before, int count) {
if(!s.toString().matches("^\\$(\\d{1,3}(\\,\\d{3})*|(\\d+))(\\.\\d{2})?$"))
{
String userInput= ""+s.toString().replaceAll("[^\\d]", "");
if (userInput.length() > 0) {
Float in=Float.parseFloat(userInput);
float percen = in/100;
text.setText("$"+dec.format(percen));
text.setSelection(text.getText().length());
}
}
}
});
This code is inside of an onClick method. Does that make a difference (eg. the text will only be formatted when the user clicks the button)?. Thanks in advance!

I have used this method in the past for formatting money.
static public String customFormat(String pattern, double s ) {
DecimalFormat myFormatter = new DecimalFormat(pattern);
String stringFormatOutput = myFormatter.format(s);
return stringFormatOutput;
}
it can be used like this:
String strPrice = customFormat("$###,##0.00", 300.2568);
mTxt.setText(strPrice);
just change the "300.2568" to be your price. This probably could work just as well for floats instead of doubles.