Develop Reference

How to properly get & set text to editText in expandable recycler view

i'm working with expandable recycler view from bignerdranch. Inside my child view, i placed a edit text where user can leave a comment regarding an issue shown on the parent view.
My problem is that, i wanted the user input to be save after the edit text loose focus. (In this case, i have 3 parents, and each parent has 1 editText). But when i input edit text 1 and focus on edit text 2 without inputing... edit text 2 would take up edit text 1 input after it loose focus.
I try using text watcher, and put the codes inside after text changes.. but the app freezes and stopped working after a while. If there a better way for me to save accordingly?
mCatatan is my editText.
#Override
public void onBindChildViewHolder(final ATPChildViewHolder atpChildViewHolder, int i, Object childObject) {
final ATPChild atpChild = (ATPChild) childObject;
final String text = atpChildViewHolder.mCatatanInput.getText().toString();
if(!text.equals("")) {
atpChild.setDetail(text);
atpChildViewHolder.mCatatanInput.setText(atpChild.getDetail());
} else {
atpChildViewHolder.mCatatanInput.setText(atpChild.getDetail());
}
// todo: fixed catatan being saved to another catatan
atpChildViewHolder.mCatatanInput.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if (!hasFocus) {
Log.d(TAG, "onFocusChange: ");
atpChild.setDetail(atpChildViewHolder.mCatatanInput.getText().toString());
atpChildViewHolder.mCatatanInput.setText(atpChild.getDetail());
}
}
});
}

How to make clickable and editable Textfield in Android?

I am working on Android application in which I want to make my textfield editable and clickable. It has multiple TextFields and EditTexts on my screen. I have "EDIT" TextField for which I want to make it clickable and after clicking I want to make other field editable and enable. Without clicking edit Textfield all of them should not be enable.
My code snippet is given below:
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_profile);
fName = (TextView) findViewById(R.id.fnametxt);
lName = (TextView) findViewById(R.id.lastnameTxt);
mailText = (TextView) findViewById(R.id.mailTxt);
mobileText = (TextView) findViewById(R.id.mobileTxt);
dobText = (TextView) findViewById(R.id.dobTxt);
fName.setText(currentUserFirstName);
lName.setText(currentUserLastName);
dobText.setText("");
mobileText.setText(currentUserContactNumber);
mailText.setText(currentUserEmail);
}

You can't convert TextView to EditText, but you can rather use setEnabled property for EditText
You can use editText.setEnabled(true); to make the EditText editable.
Say you are having two edittexts as follows. And on entering data in first edittext, you need to make edittext2 editable, then you can do this:
EditText edittext1, edittext2;
//findViewByIds for both views
editText1.addTextChangedListener(new TextWatcher() {
public void onTextChanged(CharSequence s, int start,
int before, int count) {
if(s.length() != 0)
editText2.setEnabled(true);
else
editText2.setEnabled(false);
}
});
Hope this gives a clue how to use it.
EDIT:
Don't get confused between TextField, Button, EditText.
In Android, simple read only field is TextView. Editable textbox is called EditText, and Button is plain Button.
So as per what you are saying, you want tomake EditTexts editable upon clicking of a Button.
Use this:
EditText edittext1, edittext2;
Button button;
//findViewByIds for all views.
buton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
editText1.setEnabled(true);
editText2.setEnabled(true);
}
});

In my opinion, if you want to edit your textfield, then its better to go with EditText. The reason is as follows
The TextView's editable param does make it editable (with some restrictions).
If you set
android:editable="true"
you can access the TextView via the D-pad, or you could add
android:focusableInTouchMode="true"
to be able to gain focus on touch.
The problem is you cannot modify the existing text, and you cannot move the cursor. The text you write just gets added before the existing text.

EditText - change background color of text (and only text - not the whole view)

When a user enters information in an EditText, and moves to the next EditText, the information is highlighted as shown below:
The code for this:
edittext.setOnFocusChangeListener(new OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
v.setBackgroundColor(Color.WHITE);
((EditText) v).setTextColor(Color.BLACK);
} else {
//v.setBackgroundColor(Color.LTGRAY); //also works like this
((EditText) v).setBackgroundColor(Color.LTGRAY);
((EditText) v).setTextColor(Color.BLACK);
}
}
});
Which is called in the onCreate method like this:
edittext = (EditText) findViewById(R.id.editText1);
However, It would be much better if the background color only applied to the text itself, rather than the view, like this (from the gmail app):
Does anybody have any suggestions on how to apply the background color to the text only (not the whole EditText view) as above?
Thanks.

You can achieve what you want by using a BackgroundColorSpan. You can find more information here:
http://developer.android.com/reference/android/text/style/BackgroundColorSpan.html
To use spans you need to build a SpannableString which you can do using a SpannableStringBuilder:
http://developer.android.com/reference/android/text/SpannableStringBuilder.html

How to check value entered in the Second EditText is Smaller or not in Android

I have two Edit Text fields in my application,if i enter 50 in first edit Text then in the second edit text i want to give permission to enter values less than 50 when the user enters a value in the second edit text, i want to give alert to the user if it is bigger than first edit text value.
How can i do this,means i need to check and show the alert when he enter the values i don't want to show the alert when we press any other fields...
For example:in field 1 if user enter 35
in field2 he has enter value less than 35 only...

initialize both edittext's, lets called them myEditText1 and myEditText2
in myEditText2 set a listener, there should be some kind of listener for when the text changes. Look for something like setOnTextChangedListener, here is how it would be used (this is pseudocode)
myEditText2.setOnTextChangedListener(new OnTextChangedListener(){
#Override
public void OnTextChanged(View v)
{
int i = Integer.valueOf(myEditText1.getText().toString());
int j = Integer.valueOf(myEditText2.getText().toString());
if(j >= i)
{
myEditText2.setText(""); //this automatically sets the editText2 field back to empty
}
}
});
this will only allow the user to enter numerical values lower than the value in the first edit text.
But you need to make sure that the inputType: of both of your editText fields is set to numeric.

You can compare numbers onFocuseChange of second edit text.
editText2.setOnFocusChangeListener(new OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if(!hasFocus) {
// here place code for comparison and calling alert
}
}
});

editbox lostfocus fires on the wrong edittext box

I have a simple app with 2 edittext boxes. When input is typed into the 1st box one set of calculations are performed. If input is put into the other instead, a different set of calc's occurs.
So, if a number is typed into the first box etBox1, and the user leaves the box, the data from the first box is used to calculate a reesult and put it into the second box. If a number is typed into the second box etBox2, the data is used to calculate a value for the first box.
I tried:
final EditText etBox1 = (EditText) findViewById(R.id.etBox1)
final EditText etBox2 = (EditText) findViewById(R.id.etBox2)
etBox1.setOnFocusChangeListener(new View.OnFocusChangeListener()
{
#override
public void onFocusChange(View v, boolean lostfocus)
{
if (lostFocus == true)
{ //do my calculations....}
This fires when the focus given to etBox1 instead of waiting for the box to loose focus. This crashes the app because the user hasn't had the chance to input a number into the box. Any ideas why this behaves as a "hasFocus" instead of a "lostFocus"? There is no documentation available on lostFocus at Android's site.

In your question, you have this.
final EditText etBox1 = (EditText) findViewById(R.id.etBox1);
final EditText etBox1 = (EditText) findViewById(R.id.etBox1);
You are using the same ID when mapping the text boxes. I guess it should look like this:
final EditText etBox1 = (EditText) findViewById(R.id.etBox1);
final EditText etBox2 = (EditText) findViewById(R.id.etBox2);
Not to mention that you should also get a compilation error with your code, as you define etBox1 two times...
(Unless this is only a typo in your question, and your code actually looks different...)

According to http://developer.android.com/reference/android/view/View.OnFocusChangeListener.html
onFocusChange is defined as public abstract void onFocusChange (View v, boolean hasFocus), so your boolean called lostFocus is named backwards and so confusing you, I'd recommend to change it to something like hasFocus.
now you should see that for if statement is the wrong way round, you should be checking if == false