android-edittext

问题 I have an activity with 20 EditTexts on it. I want to display a message if anything has been entered. Instead of attaching 20 listeners to each field, is there a way to know if input has been supplied(data changed)? 回答1: Here is an example of a base class that takes care of notifying subclasses if any of their EditText widgets is being used(if any exist). Depending on what you want to do when the user inputs something you may need to change my example to suit your particular case. Base

问题 I am facing issue with the multiline editTextView.I am adding single line edittext views and multiline edittext views to linearlayout(Please refer in customlayout linearlayout from below xml) programetically and also setting background.Everything working works fine but when the text is entered inside multiline edittextview the background of multiline edittextview is shrinking and further entering texts in in 2nd or 3rd line background disoriening and also background of all single line

问题 I have created custom ListView which is having two TextViews , Two Buttons and one EditText , My problem is: 1) Edit text is loosing control even after adding android:descendantFocusability="beforeDescendants" to root layout and beforeDescendants blocks onItemClick and onClick of buttons 2) If I add android:descendantFocusability="BlocksDescendants" in root layout then onItemClick of list and onClick of buttons start working but EditText become untouchable even after touching edittext

问题 I have EditText view like this: <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:inputType="none" android:background="@drawable/writting_field" android:text="@string/test" /> But it stretches and fills parent. What is the problem? 回答1: The problem may be Image size will be bigger enough so it occupying like FILL_PARENT. To get override this , use 9Patch images. So that it takes as much size as of the Text. 回答2: If image size is same or bigger than

问题 I am try to make my login page like facebook login. everything done but one thing that not yet done is when I click the Email the keyboard was cover my Password so I can't type my password. how to make my Email Password Signin button push up when click in Email? this is my xml. <?xml version="1.0" encoding="utf-8"?> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <LinearLayout android:layout

问题 I want to initialize a compose field with a listener for the return key. In the documentation it says that actionId will be EditorInfo.IME_NULL if it is being called due to the enter key being pressed. I compared actionId for that value. It also says that if triggered by a returnkey we receive KeyEvent object so i test it for KeyEvent.ACTION_UP which is the value corresponding for the release of a key. When i run the code it works for fine for a device running KitKat but in the other running

问题 I tried to display User Input from my main activity to my second activity, but when I typed in and click the send button on the main activity the whole app just crashes. Please help! crash solved! Thanks a lot! However, I can't get the message to display on the second activity. MainActivity.java package com.example.dell_inspiron.sendmessage; import android.content.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget

问题 I'm trying to make an activity that take the value of the EditText and put it in the TextView in another activity. This is the code for the first activity which contains a Textview and option menu to edit it public class Saturday extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.saturday); Intent i = getIntent(); String txt = i.getExtras().getString("txtData",""); final TextView Tclass1; Tclass1 =

问题 I'm completely at a loss for implementing an action listener for the imeOption setting "actionSearch" on an EditText control. I have looked at the Android Documentation for doing this, but I can't find support for it in Mono. I've tried implementing a TextView.IOnEditorActionListener, but I can't find the OnEditorAction method to override. This is the code I'm trying to use: EditText editText = (EditText) findViewById(R.id.search); editText.setOnEditorActionListener(new OnEditorActionListener

问题 If I want to enter a message into an editText, I enter some digits and my keyboard looks like that: but after I add some text from code by clicking the button ( et.setText(et.getText().toString() + " " + "abc") ), keyboard changes to: is there a way to prevent this happening? 回答1: I've used editable.append instead of et.setText() and this works 回答2: You should set input type in your EditText (for example by using "android:inputType" in xml file containing the layout). See: http://developer