Develop Reference

How to format single textview like below in android without using \n or html format?

This type of formatting i need i don't want to use \n or br because my string is dynamic and i want to fix any text in this this format
This is my first textview
This is my second
textview this
is my third
textview

You can do it programmatically using this function
val text = "This is my first text view this is my second textview this is my third textview"
textView.text = proxyWifi.textFormation(text)
copy/paste this code do your project :)
public String textFormation(String text){
String result = "";
String[] sentenceWords = text.split(" ");
List<String> newSentenceWords = new ArrayList<>();
textRec(sentenceWords, newSentenceWords, sentenceWords.length -1, 0, "");
int spacing = 0;
for(int i = newSentenceWords.size() -1 ; i >= 0 ; i--){
if(i == newSentenceWords.size() -1)
result = newSentenceWords.get(i);
else{
result += "\n";
spacing += (newSentenceWords.get(i + 1).length() - newSentenceWords.get(i).length())/2;
for(int j = 0 ; j < spacing ; j++){
result += " ";
}
result += newSentenceWords.get(i);
}
}
return result;
}
public void textRec(String[] words, List<String> newWords, int indexWords, int indexNewWords, String sentence){
Log.e("sentence", sentence);
if(indexWords >= 0){
if(indexNewWords == 0) {
newWords.add(words[indexWords]);
textRec(words, newWords, indexWords - 1, ++indexNewWords, "");
}else{
if(newWords.get(indexNewWords - 1).length() >= sentence.length())
if(sentence.isEmpty())
textRec(words, newWords, indexWords - 1, indexNewWords, words[indexWords]);
else
textRec(words, newWords, indexWords - 1, indexNewWords, words[indexWords] + " " + sentence);
else {
newWords.add(sentence);
textRec(words, newWords, indexWords , ++indexNewWords, "");
}
}
}else{
if(sentence.isEmpty()){
return;
}else{
newWords.set(indexNewWords - 1 ,sentence + " " + newWords.get(indexNewWords - 1)) ;
}
}
}
OUTPUT

There is no default implementation for this. Also, you can't find the line number to do this.
So you have to split the sentence into multi lines.Use \n for next line. Set gravity center to your textView.

if you use \n then your next line will be start from
This is my first textview
<here>
<not here>
So, basically you need multiple TextViews.
First devide your text String to multiple parts(Note:- (n+1)th part should be less than nth part and deff. should be both end space).
Second Create a LinearLayout with vertical orientation and center gravity.
Third loop on that array.
and in loop create a new textview with gravity center, and set the text to it.
and add this TV to linearLayout.
thats it.

I tried to give you result as you want
This may work
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
tools:context="com.ap.mytestingapp.MainActivity">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/strTV"
android:text="hello world!"
android:gravity="center" />
</RelativeLayout>
MainActivity.java
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private TextView tv;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = (TextView) findViewById(R.id.strTV);
//pass string whatever you want to show
String apStr = printString("This is my first textview This is my second textview this is my third textview");
//you need to define text size according to your requirement
// I took here 25
tv.setTextSize(25);
tv.setText(apStr);
}
private String printString(String responseString) {
String str = responseString;
String resultStr = "";
//you need to define cutLength Value according to your textView's textSize
// I took it 35 when textView's textSize is 25
int cutLength = 35;
int count = 0;
int from = 0;
for(int i = 0 ; i < str.length(); i++){
//increment of count
count++;
//check count value with cutLength so that we can add \n to string
if(count == cutLength){
// adding \n to substring
resultStr = resultStr + str.substring(from, i) + "\n";
// assigning from = i
from = i;
// reduce cutLength value
cutLength = cutLength-10;
// assigning count = 0
count = 0;
} else if(i == str.length()-1){
// adding \n to substring
resultStr = resultStr + str.substring(from) + "\n";
}
}
//return resulting string
return resultStr;
}
}

After spliting String into ArryList<String> i cannot read the text from any cell

I am an android noobie. What I am trying to do is to make this String an ArrayList. This is done. When i Print it On (with tv.setText) , the result is what i need but in this if i have right below i cannot find the "1".
The result i want to have is to store the text between the noumbers inside another ArrayList but to go there i have to be able to read the strings from the ArrayList.
public class MainActivity extends AppCompatActivity {
String text = "1Hello12People22Paul22Jackie21Anna12Fofo2";
TextView tv;
List<String> chars = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = (TextView)findViewById(R.id.tv);
PrinThemNow();
}
public void PrinThemNow(){
chars = Arrays.asList(text.split(""));
tv.setText(toString().valueOf(chars));
for(int i=0;i<chars.size();i++){
if(toString().valueOf(chars.get(i)) == " 1"){
Toast.makeText(this,"I found One",Toast.LENGTH_LONG).show();
//This if is not working while the TV's text shows " 1"
}
}
}
}

First, just a tip, from string to char[] you can use
char[] chars = myString.toCharArray();
because it has no sense to save a char array as a string ArrayList
but now the problem. you have your string and you wanna print the text between the numbers.
It's not really clear what is your goal but lets try.
I will suppose you used the char[] because it's 10 times better and easier
case 1) you wanna print text betweens "1"s
//lets loop the chars
bool firstOneFound = false;
int firstOccurrence = -1;
int secondOccurrence = -1;
int i = 0;
for(char c : chars){
//is it equals to 1?
if(c.equals('1')){
//check if we are already after the first 1
if(firstOneFound){
//if yes, we found the final one
secondOccurrence = i;
break;
}
else{
//this is the first occurrence
firstOccurrence = i;
firstOneFound = true;
}
}
i++;
}
if(firstOccurrence != -1 && secondOccurrence != -1){
String myFinalString = myString.subString(firstOccurrence, secondOccurrence);
}
case 2) you wanna print all text except numbers (maybe with a space instead)
for(char c : chars){
//check if it's a number
if(c >= '0' && c <= '9'){
//replace the number with anything else
c = ' '; //if you wanna have it as a space
}
}
//print the final string
String myFinalString = new String(chars);
NOTE:
You can also use ArrayList of string, just replace ' with "
hope it helps

Pop up Arabic/Urdu custom keyboard on Edittext Issue

I am working on app where i use Urdu Custom Keyboard its work fine but the problem is that when i type any-word e.g. (سلام), cursor become not works at mid character for example cut/copy/paste or deleting (ا) character from the mid from word are not work.
i uses rough technique just appending characters but is also work fine.
For taping any alphabetic
private void addText(View v) {
// String b = "";
// b = (String) v.getTag();
// urdu_word.setText(b);
if (isEdit == true) {
String b = "";
b = (String) v.getTag();
if (b != null) {
Log.i("buttonsOnclick", b);
// adding text in Edittext
mEt.append(b);
}
}
}
For back button tapping
private void isBack(View v) {
if (isEdit == true) {
CharSequence cc = mEt.getText();
if (cc != null && cc.length() > 0) {
{
mEt.setText("");
mEt.append(cc.subSequence(0, cc.length() - 1));
}
}
}
}
Here the screenshot clear my problem to you people
I used a lot of library and code from github but don't catch good idea
1) Keyboard-1
2) Keyboard-2
3) Keyboard-3
4) Keyboard-4
i checked all these keyboard and more from libs, have same cursor issue, how to manage fully my custom keyboard by deleting character from mid and copy my written text copy paste like normal keyboard with EditText, thanks in advance all of you :)

Thanks God i solved my issue using simple logic.
For back button
private void isBack(View v) {
// char[] tempChar = null;
if ((mEt.getText().toString().length() > 0)) {
int temp = mEt.getSelectionEnd() - 1;
if (temp >= 0) {
mEt.setText((mEt.getText().toString()
.substring(0, mEt.getSelectionEnd() - 1).concat(mEt
.getText()
.toString()
.substring(mEt.getSelectionEnd(),
mEt.getText().length()))));
mEt.setSelection(temp);
}
}
}
For adding any character
private void addText(View v) {
int temp = mEt.getSelectionEnd();
if (temp >= 0) {
String b = "";
b = (String) v.getTag();
mEt.setText((mEt.getText().toString()
.substring(0, mEt.getSelectionEnd()) + b.concat(mEt
.getText().toString()
.substring(mEt.getSelectionEnd(), mEt.getText().length()))));
mEt.setSelection(temp + 1);
}
}
for copy paste i added few lines code to EditText
<EditText
android:id="#+id/xEt"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:background="#drawable/edittextshape"
android:ems="10"
android:focusable="true"
android:focusableInTouchMode="true"
android:gravity="top"
android:imeOptions="actionDone"
android:padding="15dp"
android:singleLine="false"
android:visibility="visible" />

ListView not refreshing after updating object in the list

I've an ArrayList containing Cards. I'm trying to edit a Cards tag in the ArrayList and after editingit I want the ListView to refresh, so the user can see the updated Card, with the new tag.
I'm using cardslib for my Cards. And I'm using Android TagView Lib to tag my cards.
Here's the XML for the Card
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/colorBorder"
android:layout_width="10dp"
android:layout_height="#dimen/card_base_empty_height"
android:layout_marginTop="2dp"
android:background="#drawable/rectangle" />
<TextView
(...) />
<TextView
(...) />
<TextView
(...) />
<TextView
(...) />
<pl.charmas.android.tagview.TagView
android:id="#+id/tags_view"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_below="#id/card_main_inner_simple_total_contacts"
android:layout_marginLeft="10dp"
android:layout_alignParentRight="true"
android:textSize="12sp"/>
</RelativeLayout>
And here's when I try to edit and update the list view:
private final OnClickCardHeaderPopupMenuListener popupMenuListener = new OnClickCardHeaderPopupMenuListener() {
#Override
public void onMenuItemClick(BaseCard baseCard, MenuItem menuItem) {
final String backupId = baseCard.getId();
switch (menuItem.getItemId()) {
case R.id.action_restore:
BackupsIntentService.restoreCloudBackup(getActivity(), backupId);
Log.d(TAG, "Going to update the card");
setCurrentTask(backupId, "Restoring...", "");
break;
case R.id.action_download:
BackupsIntentService.downloadCloudBackup(getActivity(), backupId);
break;
case R.id.action_delete:
BackupsIntentService.removeCloudBackup(getActivity(), backupId);
break;
}
}
};
And here's the setCurrentTask method, where I update and refresh the list:
private void setCurrentTask(final String backupId, final String currentTaskDescription, final String separator)
{
int pos = -1;
for(int i = 0; i<cloudBackupCardList.size(); i++)
{
BackupCard backupCard = (BackupCard) cloudBackupCardList.get(i);
if(backupCard.getId().equals(backupId))
{
pos = i;
Log.d(TAG, "Found the card at position: " + i + " updating it now");
TagView.Tag[] tags = {new TagView.Tag(currentTaskDescription, Color.BLUE)};
backupCard.setCurrentTaskDescription(tags, separator);
}
}
if(pos == -1)
return;
BackupCard backupCard = (BackupCard) cloudBackupCardList.get(pos);
Log.d(TAG, "There should be: " + currentTaskDescription + " but found: " + backupCard.getCurrentTaskDescription() + " Thread: " + Thread.currentThread()
.getName());
cardListView.setAdapter(new RemoteCardArrayMultiChoiceAdapter(getActivity(), cloudBackupCardList));
// remoteCardArrayMultiChoiceAdapter.remove(remoteCardArrayMultiChoiceAdapter.getItem(pos));
// remoteCardArrayMultiChoiceAdapter.insert(backupCard, pos);
//
//// remoteCardArrayMultiChoiceAdapter.clear();
//// remoteCardArrayMultiChoiceAdapter.addAll(cloudBackupCardList);
// remoteCardArrayMultiChoiceAdapter.notifyDataSetChanged();
// cardListView.refreshDrawableState();
}
I've tried all those (the commented ones) different methods and the list is still not updated.
Here's my logcat output:
07-07 15:12:59.644: D/CardCloudBackupsFragment(24311): Going to update the card
07-07 15:12:59.644: D/CardCloudBackupsFragment(24311): Found the card at position: 8 updating it now
07-07 15:12:59.656: D/CardCloudBackupsFragment(24311): There should be: Restoring... but found: RESTORING... ThreaD: main
As you can see from the logcat, the object is updated but in the listview, on my terminal, it is not. Which leads me to conclude that the listview is not updated/refreshed. (Dont mind the all upper case letters in Restoring, it's expected.)
////////////////////// EDIT ////////////////////////////////
Here is my setupInnerViewElements method as requested in the comments box.
#Override
public void setupInnerViewElements(ViewGroup parent, View view) {
//Retrieve elements
titleTextView = (TextView) parent.findViewById(R.id.card_main_inner_simple_title);
subTitleTextView = (TextView) parent.findViewById(R.id.card_main_inner_simple_sub_title);
TextView descriptionTextView = (TextView) parent.findViewById(R.id.card_main_inner_simple_description);
TextView totalContactsTextView = (TextView) parent.findViewById(R.id.card_main_inner_simple_total_contacts);
tagView = (TagView) parent.findViewById(R.id.tags_view);
if(isLocal)
{
if (titleTextView != null)
titleTextView.setText(TIMESTAMP_TXT + titleCard); // 1st
if (subTitleTextView != null)
subTitleTextView.setText(CONTACTS_COUNT_TXT + subTitleCard); // 2nd
if(descriptionTextView != null)
descriptionTextView.setText(RESTORE_COUNT_TXT + description); // 3rd
if(tagView != null)
{
TagView.Tag[] tags = {new TagView.Tag("Wow", Color.TRANSPARENT)};
tagView.setTags( tags, "" );
}
return;
}
if (titleTextView != null)
titleTextView.setText(TIMESTAMP_TXT + titleCard); // 1st
if (subTitleTextView != null)
subTitleTextView.setText(PHONE_BRAND_TXT + subTitleCard); // 2nd
if(descriptionTextView != null)
descriptionTextView.setText(PHONE_MODEL_TXT + description); // 3rd
if(totalContactsTextView != null)
totalContactsTextView.setText(CONTACTS_COUNT_TXT + contactsNumber); // 4th
if(tagView != null)
{
TagView.Tag[] tags = {new TagView.Tag("Wow", Color.TRANSPARENT)};
tagView.setTags( tags, "" );
}
}

Replace below Line:
cardListView.setAdapter(new RemoteCardArrayMultiChoiceAdapter(getActivity(), cloudBackupCardList));
with
RemoteCardArrayMultiChoiceAdapter adapter=new RemoteCardArrayMultiChoiceAdapter(getActivity(), cloudBackupCardList));
cardListView.setAdapter(adapter);
adapter.notifyDataSetChanged();
Thats it...

The problem was a no problem at all, it was as simply as setting the tag and the TagsLibrary would take care of updating the CardView. I just didn't know this so I was trying to refresh the listview.
So I simply have this method on my card class:
public void setCurrentTaskDescription(TagView.Tag[] tags, String separator)
{
tagView.setTags(tags, separator);
}
and then on my listener I just do this:
switch ( menuItem.getItemId()) {
case R.id.action_restore:
BackupsIntentService.restoreCloudBackup(getActivity(), backupId);
EventBus.getDefault().post(new
setCurrentTask(backupCard, "Restoring...", "");
break;
}
private void setCurrentTask(final BackupCard backupCard, final String currentTaskDescription, final String separator)
{
TagView.Tag[] tags = {new TagView.Tag(currentTaskDescription, Color.GREEN)};
backupCard.setCurrentTaskDescription(tags, separator);
}
No need to refresh the list!
I was trying to make a thunderstorm inside a glass of water. Lesson learned.

Android: Is there a method equivalent to XML android:digits?

In my layout xml, I use the following to define an EditText that can display currency.
<EditText
android:id="#+id/et1"
android:layout_width="210dp"
android:layout_height="wrap_content"
android:imeOptions= "actionNext"
android:inputType="phone"
android:digits="0123456789.,$" >
However, this is not localized. I want to be able to use the symbol returned by NumberFormat.getCurrencyInstance().getCurrency().getSymbol(); in place of the $ in android:digits.
What I don't know is how to set android:digits from within my program.
Solved thanks to Agarwal. I just need to read the documentation more thoroughly.

Try this:
<EditText
android:inputType="number"
android:digits="0123456789."
/>
From Code:
weightInput.setKeyListener(DigitsKeyListener.getInstance("0123456789."));
But, it allows the user to include several "."
You can also do this for accepting on digits...
EditText input = new EditText(this);
input.setInputType(InputType.TYPE_CLASS_NUMBER);

Yes you can check here
http://developer.android.com/reference/android/widget/EditText.html
for almost every attribute there is equivalent method present.
setKeyListener(KeyListener)

For those interested, here is how I solved the original question. It is the complete implementation of a currency edit text that can handle multiple locales. Still may be some problems (Doesn't seem to display Japanese currency symbol correctly, and I can't get the keyboard I want (12_KEY)), but otherwise, some may find this helpful.
public class CurrencytestActivity extends Activity
{
private static final Integer MAX_VALUE_DIGITS = 9;
EditText et1;
NumberFormat mCurrencyFormatter;
CurrencyTextWatcher tw;
#Override public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Get info about local currency
mCurrencyFormatter = NumberFormat.getCurrencyInstance();
int fractionDigits = mCurrencyFormatter.getCurrency().getDefaultFractionDigits();
et1 = (EditText)findViewById(R.id.et1); // Get a handle to the TextEdit control
// Add local currency symbol to digits allowed for EditText display and use
// DigitsKeyListener to tell the control. Unfortunately, this also resets the inputType
// that is specified in the XML layout file. Don't know how to fix that yet.
// Also, this doesn't seem to work for Japanese (probably due to UNICODE or something).
// The symbol gets added to displayCharacters, but the EditText doesn't use it.
String displayCharacters = "0123456789.," + mCurrencyFormatter.getCurrency().getSymbol();
et1.setKeyListener(DigitsKeyListener.getInstance( displayCharacters ));
// Add a text watcher to the EditText to manage currency digit entry. The TextWatcher
// won't allow the symbol or decimal or comma to be entered by the user, but they are
// still displayed when the result is formatted in afterTextChanged().
tw = new CurrencyTextWatcher( MAX_VALUE_DIGITS, fractionDigits );
et1.addTextChangedListener( tw );
et1.setCursorVisible( false );
((Button)findViewById(R.id.button1)).setOnClickListener(onButtonClick);
}
public class CurrencyTextWatcher implements TextWatcher
{
boolean mEditing; // Used to prevent recursion
Double mAmount;
int mDigitCount, mMaxDigits, mFractionDivisor;
public CurrencyTextWatcher( int maxDigits, int fractionDigits )
{
mEditing = false;
mFractionDivisor = (fractionDigits == 0) ? 1 : ((fractionDigits == 1) ? 10 : 100);
mAmount = 0.0;
mDigitCount = 0;
mMaxDigits = maxDigits;
}
public synchronized void afterTextChanged(Editable s)
{
// Don't update EditText display if we are editing
if ( !mEditing )
{
// Under cover of mEditing, update the EditText display with
// the newly formatted value
mEditing = true;
s.replace( 0, s.length(), mCurrencyFormatter.format( mAmount ));
mEditing = false;
}
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
public double GetAmount() { return( mAmount ); }
public void onTextChanged(CharSequence s, int start, int before, int count)
{
if ( !mEditing )
{
// Added a digit to the value
if (( count == 1 ) && ( mDigitCount < mMaxDigits ))
{
// Obtain the added character
CharSequence x = s.subSequence( start, start + count );
// Ignore any characters other than number digits for addition to value
if (( x.charAt( 0 ) >= '0') && ( x.charAt( 0 ) <= '9'))
{
// Multiply by ten to shift existing digits to the left and
// add in the new digit as the decimal place appropriate to this currency
mAmount = (mAmount * 10) + (Double.parseDouble( x.toString() ) / mFractionDivisor);
mDigitCount += 1;
}
}
// Delete last digit from the value
else if (( count == 0 ) && ( mDigitCount > 0))
{
// Subtract the amount of the last digit and divide by ten to
// effectively delete the last character entered
mAmount -= (mAmount % (0.001 * mFractionDivisor) );
mAmount /= 10;
mDigitCount -= 1;
}
}
}
}
private View.OnClickListener onButtonClick = new View.OnClickListener()
{
#Override public void onClick(View v)
{
if (v.getId() == R.id.button1 )
{
// Get the value from the textwatcher and display it.
double mAmountTest = tw.GetAmount();
((TextView)findViewById(R.id.tv1)).setText(mCurrencyFormatter.format( mAmountTest ));
}
}
};
}
And the accompanying XML layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center|top"
android:orientation="vertical" >
<EditText
android:id="#+id/et1"
android:layout_width="210dp"
android:layout_height="wrap_content"
android:imeOptions= "actionNext"
android:inputType="phone" >
<requestFocus />
</EditText>
<TextView
android:id="#+id/tv1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Extract from TextWatcher" />
</LinearLayout>