Develop Reference

To get results in EditText

I want to know is there any chance to get our result in an edittext not in textview without using any button. That is when we place cursor on the edittext field, the result we want to print should be in the field. Is there anyone who could help vth this.?

This is untested but it should work I think
editText.setOnFocusChangeListener(new OnFocusChangeListener() {
#Override
public void onFocusChange(View view, boolean hasFocus) {
if (hasFocus) {
editText.setText("whatever")
}
}
});

How to disappear the hint in TextInputEditText on receiving focus

I am using a TextInputEditText as suggested here to let the user add text up to a specific length.
However, I want that when the TextInputEditText view receives focus, the hint should disappear instead of going above the view, as shown in the aforementioned tutorial. In this answer, the solution described is for a EditText and it just makes the hint go transparent. However, for a TextInputEditText, even if I make the hint transparent on receiving focus, it will still occupy space above the view.
Is there a way to just remove it on receiving focus in the TextInputEditText, statically ? It is easy to do it through OnFocusChangeListener, but I was looking to do it at compile-time.

Try to set focus change listener on EditText and hide hint programmatically when focus is true and show again hint if focus is false and text is empty.

try this from the following post
how to make hint disappear when edittext is touched?
myEditText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus)
myEditText.setHint("");
else
myEditText.setHint("Your hint");
}
});

Try this if you want to disappear on focus:
textInputEditText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View view, boolean hasfocus) {
if (hasfocus) {
textInputLayout.setHint("test");
} else {
textInputLayout.setHint(null);
}
}
});
Try below code if you want to disappear on typing (in case you are looking for something like this):
textInputEditText.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
#Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
if (TextUtils.isEmpty(textInputEditText.getText().toString())) {
textInputLayout.setHint("test");
} else {
textInputLayout.setHint(null);
}
}
#Override
public void afterTextChanged(Editable editable) {
}
});

Simply add:-
try this from the following post how to make hint disappear when edittext is touched?
edittxt.setOnFocusChangeListener(new View.OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus)
edittxt.setHint("");
else
edittxt.setHint("hint");
}
});

try to set EditText hint in java and it will automatically hide when you click on the EditText.
edtPassword.setHint(getString(R.string.YOUR_HINT));

For those who have double hint in TextInputLayout, see TextInputLayout and EditText double hint issue. We need to set hint to TextInputLayout, not TextInputEditText.
editText.setOnFocusChangeListener { _, hasFocus ->
inputLayout.hint = if (hasFocus) {
""
} else {
getString(R.string.some_text)
}
}

EditText for price

I would like to have an EditText like that :
With the currency (on the left or on the right, it depend of the local currency).
When the user edit the EditText, the "box" have to be only with the decimal (15), and after editing, It would be great to see "$15" or "15€".
I try a lot of way but to do that nothing is working.

This code works fine!!
//metFirstName is a edittext variable name
metFirstName.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
// TODO Auto-generated method stub
if (!hasFocus) {
metFirstName.setText(metFirstName.getText().toString()+"your special char");
}
}
});

Is there a way to cancel the next field being focused on Android?

Basically, I am validating a field when the the field loses focus. When an error occurs when we check at the OnFocusChangeListener, I want it to cancel the focus and stay on the same field. Is there a way to cancel the focus on it?
public void onFocusChange(View v, boolean hasFocus)
{
if (!hasFocus)
{
if(checkError(v))
{
// Cancel focus here
}
}
}

I think requestFocus() should do the trick, see this answer for usage: https://stackoverflow.com/a/8077842/1173391
Update:
I think you are missing the check for the view id, because the onFocusChange method is implemented via interface in your class:
try setting this:
if (v.getId() == myEditText.id)
as first check on the focus change method; you have to do it for every edit-field (or use a switch instead of if) ....
OR
attach an OnFocusChangeListener to every single field:
edittext1.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
}
});

Android soft keyboard and Enter action

I have a EditText in my app which is supposed to take only numeric values; this is why I set the inputType property this way:
android:inputType="number|numberSigned|numberDecimal"
It works properly, except when the user presses enter, because it losts focus; is there any property to set to avoid this? Thank you for your answers.

What do you want to do? Keep the focus?
You can implement this method and check the value... if the value is not what you expect, you put back the focus.
public void onFocusChange(View v, boolean hasFocus) {
// ...
}
Regarding your comment:
public void onFocusChange(View v, boolean hasFocus) {
if (!hasFocus && (v instanceof EditText)) {
((EditText) v).requestFocus();
}