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How to save string written in EditText to string - android studio

I'm developing an application that allows user to add his own word, it's category. I start with a spinner that has the words available before in sqlite db and Add new word. When he clicks on Add new word, the spinner changes into EditText box that allows him to enter a new word. Whenever I try to save the text written in Edittext to string it shows that string is defined as "Add new word" and not the value entered by the user. What should I do?
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
if(parent.getId()==R.id.spinword)
{
editword=parent.getItemAtPosition(position).toString();
if(editword.equals("Add new word"))
{
spinwrd.setVisibility(spinwrd.INVISIBLE);
edtwrd.setVisibility(edtwrd.VISIBLE);
flag = 1;
}
if(flag == 1)
{
editword.replace(editword,edtcat.getText().toString());
}
}
if(parent.getId() == R.id.spincat) {
editcategory = parent.getItemAtPosition(position).toString();
if (editcategory.equals("Add new category")) {
spincat.setVisibility(spincat.INVISIBLE);
edtcat.setVisibility(edtcat.VISIBLE);
editcategory = edtcat.getText().toString();
}
}
}
I tried equals method and replace method but in vain.

Not sure of what you want to do but i think you should try changing
editword.replace(editword,edtcat.getText().toString()
for
editword.replace(editword,edtwrd.getText().toString())

The answer to this question is as follows: First, replacing, clearing, or any change depends on the position of the line meaning that: In the code above, I was trying to capture the text written by the user but at that point of execution when user chooses "Add new word" the text becomes it. The solution to this problem is to place the line of code editword.replace(editword,edtcat.getText().toString()); when this function is finished to be sure that the user has entered some text.

How to save list of edittext content changes?

I want to restore previous text content on pressing undo button. With code below I can see what how did String changed, save new string to stack. For restore I just pop stack to get previous text. However that approach does not consider any changes in spannable. How to track what was changed be it either text or its styling or both?
Stack<String> save = new Stack<>();
Runnable saveRunnable = new Runnable() {
#Override public void run() {
if (tvValueDesc != null) {
String text = tvValueDesc.getText().toString();
if (save.isEmpty()) save.push(text);
if (!save.peek().equals(text)) save.push(text);
handler.postDelayed(this, 1000);
}
}
};
#OnClick(R.id.btn_undo) void restore() {
handler.removeCallbacksAndMessages(null);
if (!save.empty()) save.pop();
if (!save.empty()) {
tvValueDesc.setText(save.peek());
} else {
tvValueDesc.setText(null);
}
handler.postDelayed(saveRunnable, 1000);
}

For this you need to create Custom textPojo that includes all text propertices which you want to store ,like typeFace, text,Text Style, text size, text color , Text Alignment etc,
And When you store text while pressing button store all this information into TextPojo and maintain TextPojo stack rather maintaining single String .

To save text with spannable we should take charsequence from spannable, not the string

Hiding edit text in onCreate, but then not storing values once values entered for EditText, clipEx has text data false

The app crashes when the button is selected which uses the values converted from edit texts. Tried multiple ways to move the part edittext = R.ids .. to try and make sure the edittexts picks new values after the oncreate first runs.
Think the calculation part causes the crash because its trying to perform a calculation with stored values from the edit text when the value is false from the first time the edit text gets the R.ids... in the onCreate method.
needed hide/display editText based off a radio button setonCheckedChangeListener in the onCreate method. So edittext = R.ids .. set in this method, the app does not crash at runtime like it would if I moved the edittext = R.ids .. to the testFunction method.
EditText editTextValue;
EditText editTextValue2;
double amount;
protected void onCreate(){...
//Get edittext field parameters
editTextValue = (EditText) findViewById(R.id.editText_weight_kg);
//listener to switch editTexts on which radio button selected in units group
unitsRG.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId == R.id.imperial) {
editTextValue2.setVisibility(View.VISIBLE);
editTextValue.setVisibility(View.GONE);
}
void testFunction(View view){
String stringValue = editTextValue..getText().toString();
//check value as long as its not empty for the edit text , save it
if (editTextValue.getText().length() > 0) {
amount = Integer.parseInt(stringValue);
Log.e("MainActivity", " " + amount);
}
}
but now when I run the app I get this error in the long cat
enter image description here
E/ClipboardServiceEx﹕ clipEx is android.sec.clipboard.ClipboardExManager#1f70b420
E/ClipboardServiceEx﹕ clipEx has text data : false
here is the xml for one of the edit texts
<EditText
android:id="#+id/editText_weight_lb"
style="#style/EditTextViewStyle"
android:visibility="visible"/>
In the editTextStyle , I set the textCursorDrawable to null to try and have different colors for the pointer and underline colors. Not sure if this could also be affecting the editTextView storing the value
<item name="android:textCursorDrawable">#null</item>
I also tried setting edittext = R.ids in the testfunction and in the onCreate method. See if the editTexts would store the values the user enters rather than keeping the empty values when onCreate initially run.
I still got the same clipEx has text data:false error after trying this.
I searched the logcat error "clipEx has text data: false" and found something regarding samsung memory leaks.
https://github.com/square/leakcanary/issues/133
I am using a samsung galaxy for testing. I feel the issue is more with where I'm setting the edittexts to the R.ids thats causing the issue.
I saw the post for checking to make sure valid value entered for edittext.
Issue with empty EditText
How to Check whether a value is entered in editexts before submitting?
will add the check after finding out why values are not getting stored/ still remaining false.
Thanks

well I tried a different approach to implement the method.
I placed a button in the OnCreate method to define the event handlers against the buttons:
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button calculate = (Button)findViewById(R.id.calculate);
calculate.setOnClickListener(new View.OnClickListener(){
String stringValue = editTextValue.getText().toString();
//check value as long as its not empty for the edit text , save it
if (editTextValue.getText().length() > 0) {
amount = Integer.parseInt(stringValue);
Log.e("MainActivity", " " + amount);
}
.....
.....
}
}
By using the button method in the OnCreate, when I ran the app, errors would actually come up on the Integer.parseInt() method call. Turns out that even though the editTexts that I was entering text for did not have text values, the other editTexts still had strings for the text, so this would cause the app to crash.
<EditText...
android:text="kg"/>
I took out the text values. It worked again.
I also took out this line in the style sheet for the editText. This was to change the editText border color, cursor color, or line.
<item name="android:textCursorDrawable">#null</item>
I tried the public void testFunction() approach which I had used before, the app works, but the clipEx has text data : false continues to show up.
But the app works now with either the Button method in onCreate or as a public void testFunction() approach.

How to use the Edittext in android

So I have 6 edit texts and a button as shown below:
My question is how do I use the input from the EditTexts (which I have stored in content_main.xml) to do mathematical operations like calculating an average which I want to show up in a toast when the calculate button is pressed. I have already written some code in the MainActivity.java file that brings up a toast when the calculate button is pressed (also in content_main.xml), I just need to figure out how to use the inputs from the EditTexts in the toast.

EditText myText // = findViewById...
String text = myText.getText().toString();

What you should do first is to give each of its elements ID to also recognize from the Activity.
Then you should use the click event of the button
//Here it is referring to the id that gave his element in its layout
Button button = (Button) findViewById(R.id.button_id);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
}
});
And finally, like the button, get their input values EditText
//Here it is referring to the id that gave his element in its layout
EditText text = (EditText)findViewById(R.id.editText01);
And in order to do math, parse the string value remaining on a double (double for decimals can give the exact calculation if you want something, if you want to be an int approximately)
try{
Double value = Double.parseDouble(text);
}catch(NumberFormatException e){
//Message for error parse
}

Make a custom keyboard in Android having the same behavior as the soft keyboard

So, today I decided to try out Android, so please understand that I am a beginner in it.
What I want to achieve right now is to have a EditText, and a set of buttons to be used to enter data into the EditText.
What I've done currently is stick a set of button widgets in the XML layout, and I use this code to make the buttons insert stuff into the EditText:
final EditText inputline = (EditText) findViewById(R.id.textentry);
final Button my_button = (Button) findViewById(R.id.my_btn);
my_button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
inputline.append("a");
}
});
This kind of works, but I need help with a few issues:
it always appends the character at the end of the string, not at the current cursor position
similarly, when I call inputline.selectAll() and press my button, it inserts the text at the end of the string again; whereas I want it to delete the text first (as it's selected) and then insert the character
it seems tedious to write all that code for each of the buttons I have. Is there a better way to do this altogether?
Thanks for your help!

I have now pretty much solved by replacing inputline.append("a"); etc. with my custom function, lineInsert(), which you can see below.
public void lineInsert(CharSequence text) {
final EditText inputline = (EditText) findViewById(R.id.textentry);
int start = inputline.getSelectionStart();
int end = inputline.getSelectionEnd();
inputline.getText().replace(Math.min(start,end), Math.max(start,end), text, 0, text.length());
inputline.setSelection(inputline.getSelectionEnd());
}
This has the same behavior as the soft keyboard.