Develop Reference

clean text in an edittext by pressing another edittext

I have a small problem with Edittext, I have two edittext and when I press an edittext the other must be cleaned, try to do it with isFocusable () but I can't, who can help me?
public void loadED(View view) {
if (edt4.isFocusable()) {
edt3.setText("");
} else {
if (edt3.isFocusable()) {
edt4.setText("");
}
}
}

Use an OnFocusChangeListener applied to each EditText:
edt4.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
edt3.getText().clear();
}
}
});
edt3.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
edt4.getText().clear();
}
}
});

How to display view in foreground based on focus?

JAVA CODE:
mEdtTextPickup.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if(hasFocus){
mLayoutDrop.invalidate();
mEdtTextPickup.bringToFront();
}
}
});
mEdtTextDrop.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if(hasFocus){
mLayoutPickup.invalidate();
mEdtTextDrop.bringToFront();
}
}
});
`
I have two layouts in my application Source and Destination in which one overlaps the other inside a FrameLayout.(just like the attached image)
Now how do i bring destination layout on top of source layout animated when it is focused. I googled a lot but found no solutions.

You can use a focus change listener to identify when the field is focused and then bringToFront to bring the view above the others.
destinationEditText.setOnFocusChangeListener(new OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
edittext.bringToFront();
}
}
});

Set focus on spinner when selected in android

I have a vertical scrolling layout with multiple EditText and Spinner controls.
Problem is when i choose any spinner option after selection the screen scrolls back to the last EditText is was editing before this spinner. The Focus remains with the last EditText i was editing. Is there a way i can keep focus with the current selected spinner.
I am looking for a solution that can be implemented on all spinners from layout XML or some generic method to apply to all spinners.

Here's my solution.
mSpinner.setFocusableInTouchMode(true);
mSpinner.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
if (mSpinner.getWindowToken() != null) {
mSpinner.performClick();
}
}
}
});

Use this to avoid EditText Focus :
scrollView = (ScrollView) findViewById(R.id.scrollView_id);
scrollView.setOnTouchListener(new OnTouchListener() {
// to solve foocus problem on scrolling
public boolean onTouch(View v, MotionEvent event) {
if (myEditText.hasFocus()) {
myEditText.clearFocus();
}
if (myEditText1.hasFocus()) {
myEditText1.clearFocus();
}
return false;
}
});

I solved the problem with the help of Ryderz answer. here is the code :
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
scrollView = (ScrollView) findViewById(R.id.sv_main);
scrollView.setOnTouchListener(new OnTouchListener() {
// to solve focus problem on scrolling
public boolean onTouch(View v, MotionEvent event) {
IBinder windowToken = null;
if (myEditText1.hasFocus()) {
myEditText1.clearFocus();
windowToken = myEditText1.getWindowToken();
}
if (myEditText2.hasFocus()) {
myEditText2.clearFocus();
windowToken = myEditText2.getWindowToken();
}
if (myEditText3.hasFocus()) {
myEditText3.clearFocus();
windowToken = myEditText3.getWindowToken();
}
if (windowToken != null) {
imm.hideSoftInputFromWindow(windowToken, 0);
}
scrollView.requestFocusFromTouch();
return false;
}
});
Then I set the android:focusable="true" for my textViews so that on scroll when focus is removed from editText then the Textviews can be picked for focus. In that way the user doesn't see any focused control on screen.

I had the same problem like you and I've resolved with this solution.
I've redefined OnItemSelectedListener and when the spinner changes the value, I take the focus and after that, I release again.
This is my class CustomOnItemSelectedListener:
public class CustomOnItemSelectedListener implements AdapterView.OnItemSelectedListener{
private Spinner mSpinner;
private int iCurrentSelection;
public CustomOnItemSelectedListener(Spinner s){
mSpinner = s;
iCurrentSelection = mSpinner.getSelectedItemPosition();
}
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
if (iCurrentSelection != arg2) {
mSpinner.setFocusableInTouchMode(true);
mSpinner.requestFocus();
mSpinner.setFocusableInTouchMode(false);
mSpinner.clearFocus();
}
iCurrentSelection = arg2;
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
//No hace falta hacer nada
}
}
In my code I do this
Spinner spinner = (Spinner) rootView.findViewById(R.id.spinner);
spinner.setOnItemSelectedListener(new CustomOnItemSelectedListener(spinner));
If you want to keep focus, don't do "clearFocus()".

How can I detect focused EditText in android?

I have a number of EditText elements in my page along with two buttons. I want the user to touch on any one EditText field and click any button to insert a certain value into that very EditText field they touched. Giving input using the keypad is not allowed. Please help me to do this.

You can use View.OnFocusChangeListener to detect if any view (edittext) gained or lost focus.
for (EditText view : editList){
view.setOnFocusChangeListener(focusListener);
}
....
private OnFocusChangeListener focusListener = new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus){
focusedView = v;
} else {
focusedView = null;
}
}
}
This goes in your activity or fragment or wherever you have the EditTexts. The .... is just saying that you can put it anywhere else in the class. And obviously you would need to create an array with them in it, thus the editList.

This works for me. It returns a boolean.
myEditText.hasFocus()

One thing that you can do is declare a global variable evalue which will tell you which is the last selected EditText by using onTouchListener and then based on the value of evalue, you can set the text value to the edittext by button click. hope you understood.
the code for it can be as follow:
EditText e1,e2;
Button b1,b2;
String evalue;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
e1=(EditText)findViewById(R.id.editText1);
e2=(EditText)findViewById(R.id.editText2);
b1=(Button)findViewById(R.id.button1);
b2=(Button)findViewById(R.id.button2);
e1.setOnTouchListener(new View.OnTouchListener()
{
public boolean onTouch(View arg0, MotionEvent arg1)
{
evalue="1";
return false;
}
});
e2.setOnTouchListener(new View.OnTouchListener()
{
public boolean onTouch(View arg0, MotionEvent arg1)
{
evalue="2";
return false;
}
});
b1.setOnClickListener(new View.OnClickListener()
{
public void onClick(View arg0) {
if(evalue=="1")
{
e1.setText("yes");
}
if(evalue=="2")
{
e2.setText("yes");
}
}
});
b2.setOnClickListener(new View.OnClickListener()
{
public void onClick(View arg0) {
if(evalue=="1")
{
e1.setText("No");
}
if(evalue=="2")
{
e2.setText("No");
}
}
});
}
Its a logical coding.. not upto the mark.. if you find a better one. then use it. thank you.

This worked for me.
e1 = (EditText) findViewById(R.id.editText1);
e1.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View arg0, boolean hasfocus) {
if (hasfocus) {
Log.e("TAG", "e1 focused")
} else {
Log.e("TAG", "e1 not focused")
}
}
});

With Java 8 lambdas:
EditText editTextTo = findViewById(R.id.editTextTo);
editTextTo.setOnFocusChangeListener((view, b) -> {
if (view.isFocused()) {
// Do whatever you want when the EditText is focused
// Example:
editTextFrom.setText("Focused!");
}
});
Note that the view inside the lambda function is actually an instance of an EditText.

Have your Fragment implement OnTouchListener & OnFocusChangeListener:
public class AttributesFragment extends Fragment
implements OnTouchListener, OnFocusChangeListener {
Then implement using:
#Override
public boolean onTouch(View view, MotionEvent event) {
if (view instanceof EditText) {
view.setOnFocusChangeListener(this); // User touched edittext
}
return false;
}
#Override
public void onFocusChange(View v, boolean hasFocus) {
}
Don't forget to set your listener after creating your EditText
editText.setOnTouchListener(this);
This way if an EditText box is focused by default but user has not changed the field it will not fire the onFocusChange event.

Simple Coding:
if(EditText1.isFocused()){
//EditText1 is focused
}else if(EditText2.isFocused()){
//EditText2 is focused
}

This worked for me using Java 8 (lambdas):
EditText myEditText = findViewById(R.id.editText);
myEditText.setOnFocusChangeListener((view, hasFocus) -> {
if(hasFocus){
Log.e("TAG", "myEditext has focus")
}else{
Log.e("TAG", "myEditext has no focus")
}
});

In your activity or fragment implement OnFocusChangeListener.
edittextNeme= (EditText) findViewById(R.id.edittextNeme);
edittextNeme.setOnFocusChangeListener(this);
You will have to check which view changed focus by getting the view id with view.getId() and handle accordingly.
#Override
public void onFocusChange(View view, boolean hasfocus) {
switch(view.getId()){
case R.id.edittextNeme:
//Do something
break;
...etc
}
}

val currentFocusView = activity.currentFocus
if (currentFocusView is EditText){
currentFocusView.appendText("Has Focus!")
}

EditText setOnFocusChangeListener on all EditTexts

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().findViewById(R.id.txtContactPosition);
txtName.setOnFocusChangeListener(new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if(!hasFocus) {
saveThisItem(txtClientID.getText().toString(), "name", txtName.getText().toString());
}
}
});
txtCompany.setOnFocusChangeListener(new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if(!hasFocus) {
saveThisItem(txtClientID.getText().toString(), "company", txtCompany.getText().toString());
}
}
});
txtPosition.setOnFocusChangeListener(new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if(!hasFocus) {
saveThisItem(txtClientID.getText().toString(), "position", txtPosition.getText().toString());
}
}
});
Like... is there some way to have a ArrayList < EditText > of EditText Views, assign a pointer (sorry, not sure how) to the existing editTexts and set the onFocusChangeListener to the whole arraylist? Or, even, iterate through the ArrayList and set the onFocusChangeListener to each member?
Or a way to detect ANY onFocusChangeListener events, and just save all data to the database, regardless of what EditText the even occurred on?

Well, you could have your activity implement OnFocusChangeListener. That way, all your changes will be on that one metho,d but you will have to check which view changed focus by getting the view id with v.getId() and handle accordingly.
#Override
public void onFocusChange(View v, boolean hasFocus) {
switch(v.getId()){
case r.id.editText1:
break;
...etc
}
}

There's plenty of ways you could make this simpler. For one, how about abstracting this into a method and calling it for each TextView you want to add the event for:
private void setOnFocusChangeListener(TextView textView, String name){
textView.setOnFocusChangeListener(new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if(!hasFocus) {
saveThisItem(txtClientID.getText(), name,
textView.getText());
}
}
});
}
Then you can call this method for each of your TextView instances:
setOnFocusChangeListener(txtName, "name");
setOnFocusChangeListener(txtCompany, "company");
setOnFocusChangeListener(txtPosition, "position");

My suggestion would be to use a custom EditText to handle this for you:
public class SaveEditText extends EditText implements View.OnFocusChangeListener {
private String mDataKey;
private String mClient;
public SaveEditText (Context context) {
super(context);
setOnFocusChangeListener(this);
}
public SaveEditText (Context context, AttributeSet attrs) {
super(context, attrs);
setOnFocusChangeListener(this);
}
public void setDataKey (String dataKey) {
mDataKey = dataKey;
}
public void setClient (String client) {
mClient = client;
}
#Override
public void onFocusChange (View v, boolean hasFocus) {
saveThisItem(mClient, mDataKey, getText().toString());
}
}
You might decide to handle the client and data keys differently, but the idea is that you use a custom base class that will handle it automatically.

Or even simpler
OnFocusChangeListener listener;
listener = new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
//Do something
}
};
textbox1. setOnFocusChangeListener(listener);
textbox2. setOnFocusChangeListener(listener);
textbox3. setOnFocusChangeListener(listener);
Since onFocusChange(View v, boolean hasFocus) has the parameter View you can use that to tell which view called it