android-edittext interview questions
Top android-edittext frequently asked interview questions
I'm showing an input box using AlertDialog. The EditText inside the dialog itself is automatically focused when I call AlertDialog.show(), but the soft keyboard is not automatically shown.
How do I make the soft keyboard automatically show when the dialog is shown? (and there is no physical/hardware keyboard). Similar to how when I press the Search button to invoke the global search, the soft keyboard is automatically shown.
Source: (StackOverflow)
I want to have 5 lines for the height of the text area. I am using the following code.
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:singleLine="false"
android:lines="5"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip" />
The text area looks fine, but the problem is that the cursor is blinking in the middle of the text field. I want it to blink at first line, at the first character of the text field.
Source: (StackOverflow)
I need to do form input validation on a series of EditTexts. I'm using OnFocusChangeListeners to trigger the validation after the user types into each one, but this doesn't behave as desired for the last EditText.
If I click on the "Done" button while typing into the final EditText then the InputMethod is disconnected, but technically focus is never lost on the EditText (and so validation never occurs).
What's the best solution?
Should I be monitoring when the InputMethod unbinds from each EditText rather than when focus changes? If so, how?
Source: (StackOverflow)
Can anyone tell me how to make an EditText not editable via XML? I tried setting android:editable to false, but
- it is deprecated; and
- it didn't work.
Source: (StackOverflow)
I have an Android Activity, with two elements:
EditText ListView
When my Activity starts, the EditText immediately has input focus (flashing cursor). I don't want any control to have input focus at startup. I tried:
EditText.setSelected(false);
No luck. How can I convince the EditText to not select itself when the Activity starts?
Source: (StackOverflow)
I am changing the value of an EditText on keyListener.
But when I change the text the cursor is moving to the beginning of the EditText.
I need the cursor to be at the end of the text.
How to move the cursor to the end of the text in a EditText.
Source: (StackOverflow)
What's the best way to limit the text length of an EditText in Android?
Is there a way to do this via xml?
Source: (StackOverflow)
I am learning how to create UI elements. I have created a few EditText input fields. On the click of a Button I want to capture the content typed into that input field.
<EditText android:id="@+id/name" android:width="220px" />
That's my field. How can I get the content?
Source: (StackOverflow)
I am having this issue where I am using the Android's Holo theme on a tablet project. However, I have a fragment on screen which has a white background. I am adding an EditText component on this fragment. I've tried to override the theme by setting the background of the Holo.Light theme resources. However, my text cursor (carat) remains white and hence, invisible on screen (I can spot it faintly in the edittext field..).
Does anyone know how I can get EditText to use a darker cursor color? I've tried setting the style of the EditText to "@android:style/Widget.Holo.Light.EditText" with no positive result.
Source: (StackOverflow)
In my project I have an EditText. I want to count the characters in the EditText, and show that number it in a TextView. I have written the following code and it works fine. However, my problem is when I click Backspace it counts up, but I need to decrement the number. How can I consider Backspace?
tv = (TextView)findViewById(R.id.charCounts);
textMessage = (EditText)findViewById(R.id.textMessage);
textMessage.addTextChangedListener(new TextWatcher(){
public void afterTextChanged(Editable s) {
i++;
tv.setText(String.valueOf(i) + " / " + String.valueOf(charCounts));
}
public void beforeTextChanged(CharSequence s, int start, int count, int after){}
public void onTextChanged(CharSequence s, int start, int before, int count){}
});
Source: (StackOverflow)
I want to automatically show the soft-keyboard when an EditText is focused (if the device does not have a physical keyboard) and I have two problems:
When my Activity is displayed, my EditText is focused but the keyboard is not displayed, I need to click again on it to show the keyboard (it should be displayed when my Activity is displayed).
And when I click done on the keyboard, the keyboard is dissmissed but the EditText stays focused and y don't want (because my edit is done).
To resume, my problem is to have something more like on the iPhone: which keep the keyboard sync with my EditText state (focused / not focused) and of course does not present a soft-keyboard if there is a physical one.
Source: (StackOverflow)
I'm working on a little personal todo list app and so far everything has been working quite well. There is one little quirk I'd like to figure out. Whenever I go to add a new item, I have a Dialog with an EditText view showing inside. When I select the EditText view, the keyboard comes up to enter text, as it should. In most applications, the default seems to be that the shift key is held for the first letter... although it does not do this for my view. There has to be a simple way to fix, but I've searched the reference repeatedly and cannot find it. I'm thinking there has to be an xml attribute for the reference loaded by the Adapter, but I can't find out what it is.
Source: (StackOverflow)
This question already has an answer here:
I would like to be able to remove the focus from the EditText. For example if the Keyboard appears, and the user hides it with the back button, I would like the focus and the cursor to disappear. How can it be done?
Source: (StackOverflow)
I am trying to add a text field onto my Android app in Eclipse, but then I drag the Plain text option on to the graphical layout, a message at the bottom comes up. It reads
Exception raised during rendering: java.lang.System.arraycopy([CI[CII)V
Exception details are logged in Window > Show View > Error Log
Even when I go to Window > Show View there is no error log option. The whole designer is useless now, because I can not use it anymore until I delete the EditText directly from the xml. What is causing this error, and how do I fix it? I am running the latest version (as of today, 6-30-14), and Windows 8 Pro x64.
Here is my full layout code:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="${relativePackage}.${activityClass}" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="18dp"
android:text="@string/welcome_text" />
<EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:ems="10"
android:inputType="text">
<requestFocus />
</EditText>
</RelativeLayout>
Source: (StackOverflow)