android-edittext

问题 I set TextWatcher to EditText like below. But when I try to clear text, cursor is coming to start after clearing every letter. class MyInputWatcher 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) { et.removeTextChangedListener(watcher2); et.setText(s.toString().replaceAll("[^[:alpha:]]", "")); et.addTextChangedListener(watcher2); }

问题 I am working on a EditText which can take Bold, Italics and Underline characters as mentioned in this question. I have extended EditText and overrided the onTextChanged() method. My code works fine for the first occcurence of any bold, italics, underlined input but after my second occurence the first occurence gets changed to normal text. Here is a gif depecting the problem Here is the MainActivity.java package com.example.syed.andtexteditor; import android.os.Bundle; import android.support

问题 I'm developing an Calculator App. I wanna achieve the UI as like as Android default Calculator App. Please check my App's screenshot. I want to hide the underline of EditText and show the cursor in white color. I used transparent background at EditText (from here) also used background as @null . It hides EditText's underline and also hide the cursor. BUT... for calculator App cursor should not be hidden. Please give me a way to hide underline of EditText and show the EditText's cursor of

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . Ive tried to hunt down the tutorial for notepad on android developers but it appears to of gone offline with the recent change. What i need is a database thats created by the user using 3-4 edittext boxes and 2 date boxes and to store as 1 file i can look back on.. but i have no idea where to start with

问题 I'm trying to get it to if a user doesn't enter a value in the EditText boxes, the initial value is set to 0 (to prevent the crash error NumberFormatException Invalid int: "") which is thrown assuming because there is no integer value to read, since the user didn't input one in this case. I've tried a number of things most recently this: String boozeAmount = boozeConsumed.getText().toString(); if (boozeAmount == "" || boozeAmount == null){ boozeConsumed.setText("0"); boozeAmount =

问题 I have and android layout with two edittexts one for Qty and one for rate and a textview for total amount. now what i want to do is change/update the total amount whenever the user changes the rate or quantity fields. what is the edittext event i am looking for and can i set it from the layout xml properties like i can set OnClick? 回答1: For this you have to set addTextChangedListener() to editText . Just as below: editText.addTextChangedListener(this);// your activity has to implement

问题 I have displayed a gridview whose items are a textview and edittext.Now ,how to achieve function that I click the gridview item and the edittext get the focus? gridview.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { how to override this function? I try that before: ((EditText)gridview.getChildAt(position).findViewById(R.id.grid_edittext)).requestFocus(); and also: ((ViewGroup)gridview.getChildAt

问题 So to tell you exactly what's going on, let me explain the context first. I followed this tutorial : https://viksaaskool.wordpress.com/2014/11/16/using-auto-resize-to-fit-edittext-in-android/ which is basically a simple autoresizeEditText, based on the autoFitTextView library ( https://github.com/grantland/android-autofittextview ). What I want to achieve : When I click on a button, the entire layout is zoomed in, and I simulate a click on the editText to let the user enter some text. What I

问题 I know something similar has already been asked, but I'm having some trouble to get a decimal number that come from keyboard. My Java code in the onCreate method should be: textS0 = (EditText)findViewById(R.id.editS0); Button btn_S0 = (Button)findViewById(R.id.getS0); btn_S0.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { //how should I get here the number from keyboard? //I think I should be something like //double S0=textS0.getText().... } }); And that's what

问题 I was just wondering how to create an editText field on the click of a button. Is it possible? I cant find anything online. If anyone knows how to do this please answer! and if you know how to configure the size, placement ect also include that information. 回答1: import android.widget.Button; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.LinearLayout.LayoutParams; LinearLayout mLinearLayout = new LinearLayout(this); mLinearLayout = (LinearLayout