android-edittext

问题 I want to allow users only to type certain characters based on the a regex in my android applications. How do I achieve it? 回答1: 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. 回答2: Try this: If the

问题 This question already has answers here : Focusable EditText inside ListView (12 answers) Closed 6 years ago . I have an EditText inside each row of a ListView . For some reason, when I tap the EditText, it briefly gains focus but then immediately loses it. I have tried these things: listView.setItemsCanFocus(true); editText.setFocusable(true); While the EditText is (briefly) focused, the Enter key says Next and the auto-correct bar is present. When it loses focus, the soft keyboard stays up,

问题 I have several EditText fields which I want to save to the SQLiteDatabase with setOnFocusChangeListener. Do I have to set an onFocusChangeListener on each one individually, or is there a catch-all of some sort? (getActivity().findViewByID because this is a fragment) final TextView txtName = (TextView)getActivity().findViewById(R.id.clientHeader); final TextView txtCompany = (TextView)getActivity().findViewById(R.id.txtContactCompany); final TextView txtPosition = (TextView)getActivity()

问题 I'm searching for a way to prevent the user from moving the cursor position anywhere. The cursor should always stay at the end of the current EditText value. In addition to that the user should not be able to select anything in the EditText. Do you have any idea how to realize that in Android using an EditText? To clarify: the user should be able to insert text, but only at the end. 回答1: I had the same problem. This ended up working for me: public class CustomEditText extends EditText {

问题 I have to set acceptable characters "0123456789" and "semicolon" in the EditText. Below is the code I'm using. android:digits="0123456789;" android:inputType="number|text The problem with that implementation is in HTC phones, semicolon can't be entered but in Samsung and Sony Ericsson, semicolon can be entered. Another problem is when I entered semicolon in Samsung and Sony Ericsson, semicolon can't be deleted. Is there any missing property in the above code? Thanks in advance. 回答1: Android

问题 This question already has answers here : What's the best way to limit text length of EditText in Android (20 answers) Closed last year . I set up a max length of text in an EditText field. <EditText android:id="@+id/courseDescriptionField" android:layout_width="fill_parent" android:layout_height="wrap_content" android:inputType="textMultiLine" android:lines="5" android:maxLength="@integer/max_course_description_limit" android:gravity="left|top" > </EditText> The problem for me however is,

问题 I recently used TextInputEditText and I got lint error that singleLine attribute is Deprecated <android.support.design.widget.TextInputEditText android:id="@+id/my_edit_text" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="@string/string_hint_dob" android:lines="5"/> </android.support.design.widget.TextInputLayout> Getting strike-through as below: Is there any alternative way for this? 回答1: The android:singleLine attribute has been deprecated since API

问题 I'm trying to force the numeric keypad to show when my activity and EditText load. It seems there's a pretty straightforward answer given here and elsewhere: you say EditText yourEditText= (EditText) findViewById(R.id.yourEditText); InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.showSoftInput(yourEditText, InputMethodManager.SHOW_IMPLICIT); Fine then. So I do this and I include the imports: import android.content.Context; import android.os

问题 I'm trying to change the style of the EditText? Is it possible to achieve that? If so I'll appreciate being told about it, otherwise what alternative ways are available. 回答1: You can use the attribute style="@style/your_style" that is defined for any widget. To define your style you have to create a file called style.xml in the values folder (i.e. \res\values\styles.xml ) and use the following syntax: <style name="You.EditText.Style" parent="@android:style/Widget.EditText"> <item name=

问题 How to restrict special characters from an Android EditText field? 回答1: Have you tried adding the android:digits="abcde.....0123456789" attribute? Although the android:digits specify that it is a numeric field, it does work for me to set it to accept letters as well, and special characters as well (tested on SDK-7). If this doesn't work then you'll have to implement KeyListener see: http://developer.android.com/reference/android/widget/TextView.html#setKeyListener(android.text.method