android-edittext

How to return to default style on EditText if I apply a background?

我是研究僧i 提交于 2019-11-28 10:42:21
I just encountered with a problem that I don't know how to solve. It looks silly but I cannot find a way to fix it. I have a form in android with several EditText and when you submit the form it checks those EditText and if they have wrong data I change the EditText to red border (applying a ninepatch image). myEditText.setBackgroundResource(R.drawable.edittext_red); The problem is, I want to restore android's default style when the user change the EditText, but I don't know how to do it. if I do: myEditText.setBackgroundResource(0); It will just remove everything and that's not what I want.

Issue with empty EditText

半世苍凉 提交于 2019-11-28 10:41:19
问题 I have an Activity with an EditText, Button and TextView. If I write some numbers and click the button, the TextView shows the result of the calculation. If the EditText is empty (i.e. there are no numbers entered) and I click the Button I have the a dialog saying: "The application has stopped unexpectedly. Please try again". Please help me. I want to show a window with some comments (for example "Insert numbers"), if the user does not write any numbers. How should I program the EditText

programmatically set edit text hint in android?

﹥>﹥吖頭↗ 提交于 2019-11-28 10:40:00
is there a way to set the text hint displayed inside of an android edittext with java? I would like for my app to be able to display different things in the edittext at different times, thanks in advance Did you try the setHint ? myTextView.setHint("My conditional hint"); Hope it helps.. If you are using simple Editext without TextInputLayout : EditText etUsername; etUsername = (EditText) findViewById(R.id.etUsername); etUsername.setHint("Your Hint"); If you are using Editext within TextInputLayout then you need to change property of TextInputLayout not Edittext : TextInputLayout layoutUser;

Android: Different colours for different characters in EditText

情到浓时终转凉″ 提交于 2019-11-28 10:33:37
问题 Thank you in advance for any responses. I am trying to have an EditText in my Android application which has different colours for different characters which are typed in. For e.g. Alphabet "A" should always be blue, alphabet "b" should always be green... so on. So far, I have no been able to find a solution for it. Please be kind enough to guide me in the right direction. 回答1: As was pointed out, you can apply Spannables to the text as it is entered. Something like this: colorEdit

Allow only selected charcters based on regex in an EditText

感情迁移 提交于 2019-11-28 10:31:07
I want to allow users only to type certain characters based on the a regex in my android applications. How do I achieve it? Ragunath Jawahar Used a TextWatcher as @Matt Ball suggested. @Override public void afterTextChanged(Editable s) { String text = s.toString(); int length = text.length(); if(length > 0 && !Pattern.matches(PATTERN, text)) { s.delete(length - 1, length); } } Edit Although the TextWatcher works, it would be cleaner to use an InputFilter . Check this example . Try this: If the character to type matches /[a-zA-Z0-9{insert valid characters here}]/ then allow it, otherwise don't.

Android - Checking if editText is >3 before and after user input

断了今生、忘了曾经 提交于 2019-11-28 10:18:48
问题 I have some code where I need a "Create Account" button to be disabled if an editText field has less than 3 char in it. If the User enters 3 chars, then the button should enable itself so that it can be used. I have constructed the if else statement that disables the button if there are less than 3 char in the editText field, BUT on input, when the user inserts 3 char, it does not re-evaluate to see if the statement is true so the button of course stays disabled. Once the user enters 3 char

How to change TextView's text on change of EditText's text?

妖精的绣舞 提交于 2019-11-28 10:14:56
I have a EditText box where the user can enter input. I need to display the input text in a TextView (which is placed below the Edittext) while the user inputting the text. For Ex: If the user is entering any characters in Edittext box, i need to display the same characters in TextView. In the same way, If the user deletes any character from editetext, i need to remove the same character from TextView. (Ultimtely, I want to change textview's text on change of editext's text). I hope my requirement is clear now. How can i achieve this ? Please guide me Azhar Shaikh Add TextWatcher to your

Android - get selection of text from EditText

筅森魡賤 提交于 2019-11-28 10:12:27
I'm trying to implement a copy/paste function. How can I get a selection of text from an EditText? EditText et=(EditText)findViewById(R.id.title); blabla onclicklistener on a button: int startSelection=et.getSelectionStart(); int endSelection=et.getSelectionEnd(); Then I'm stuck. Any ideas? Seems like you've already done the hard part by finding what the selected area is. Now you just need to pull that substring out of the full text. Try this: String selectedText = et.getText().substring(startSelection, endSelection); It's just a basic Java String operation. You should use a special function

Android: Set Edit text or text view id Programmatically

≡放荡痞女 提交于 2019-11-28 10:09:51
I am developing an application in which i am creating an Edittext programmatically as : EditText edText = new EditText(this); edText.setId(1); edText .setLayoutParams(new TableLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,0f)); edText .setInputType(InputType.TYPE_CLASS_NUMBER); edText.setHint("dsgsdgsgs"); tableLayout.addView(edText); Here I am setting the id of the Edit text as "1" by the line edText.setId(1); in integer. But what i need is - I want to set the ID in character as for example: edText.setId("edittext_hello"); So that i can access it via that id. How

Edittext in Listview android

[亡魂溺海] 提交于 2019-11-28 09:45:01
I have Listview with editext and textview. When i touch on edittext then edittext lost focus! I resolved this problem by setting android:windowSoftInputMode="adjustPan"(AndroidManifest.xml) . Now i touch on edittext than editext get focus but application label and some raw of listview disappear(top part). I want to get focus when user touch on edittext without loss application label and some raw of listview. Code that i have implemented : Below coding get focus when user touch on edittext but application label and some raw of listview disappear when soft keypad pop up.I want to get focus when