I have in my program a scroll view with a linearlayout inside of it. I add dynamically TextView's to the linearlayout and I have no way to know how much TextView's I'll end up with. When a certain TextView is clicked I need to get it's text. Any idea what is the best way to do it?
Thanks in advance.
I've tried to add a listener to the text view but I am not sure how to get the text. I saw in some posts that you can do a listener to the LinearLayour/ScrollView though I am not sure what is the best option.
This happenes every time a message is added:
TextView messageText = new TextView(RecordedMessagesScreen.this);
messageText.setText(content);
messageText.setClickable(true);
messageText.setOnClickListener(RecordedMessagesScreen.this.textViewListener);
RecordedMessagesScreen.this.messagesLayout.addView(messageText);
this is the listener:
this.textViewListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent data = new Intent();
data.putExtra("message", ***NEED TO GET THE TEXT***)
}
};
At the class level declare a String variable:
private String text = "";
and a View.OnClickListener variable:
private View.OnClickListener listener;
Initialize the listener in onCreate() of your activity like this:
listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
TextView tv = (TextView) v;
text = tv.getText().toString();
}
};
and every time you create a new TextView set the listener:
textView.setOnClickListener(listener);
This way the variable text each time you click a TextView will get the clicked TextView's text.
You can customize the code inside onClick() yo suit your needs.
Related
What I need is for the textview to be added onto a linear layout where it will look organised and nice. Whenever the button is clicked again, it should replace the old textview and update it again.
At the moment, the button onclick listener will produce a textview, but I don't like it because it looks messy and unorganised.
I tried doing this:
varlinear.addView(varkebabTotal);
but it caused an error.
I have looked at other examples but they didn't explain how it will work with an onlick listener.
Here's the code for what happens when the button is clicked:
varKebab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String name = "Kebab Wrap";
if (menu.containsKey(name)) {
kebabquantity = list.get(name);
if (kebabquantity == null) {
kebabquantity = 0;
}
kebabquantity++;
list.put(name, kebabquantity);
//kebab qty calc
double kebabTotal = kebabquantity * menu.get(name);
overallTotal = overallTotal + menu.get(name);
varkebabTotal.setText(String.format("%s %s # £%s = £%.2f", kebabquantity.toString(), name, menu.get(name), kebabTotal));
varTotalPrice.setText(String.format("Total = £%.2f", overallTotal));
varlinear.addView(varkebabTotal); // this line caused an error
}
}
});
Edit:
The error I received is when I tested the app, and when I click the button, the app stops. It shuts itself down due to that one line: varlinear.addView(varkebabTotal);
The variables are as follows:
varkebabTotal = (TextView) findViewById(R.id.kebabTotal);
varTotal = (TextView) findViewById(R.id.TotalPrice);
varlinear = (LinearLayout) findViewById(R.id.myLinear);
one method you can try is to set varkebabTotal.setVisibility(View.GONE); when you initialize the TextView, and then on your onClick event, you can change it to varkebabTotal.setVisibility(View.VISIBLE);
Of late I was just trying to create a mems geneator app, yes I had been following the new bostons and in that buckey created them using 2 fragments and here i just want to do in a single main activity, but I just can't figure out how to retrieve the text from the edit text field and set the text of Text view to it. I know it's pretty a newbie question but still I don't know how to code it so please help...
I had just imported some widgets,views,etc and done some modified the on create function and my on create function is:
public class MainActivity extends AppCompatActivity {
public static EditText topText;
public static EditText bottomtext;
public static TextView top;
public static TextView bottom;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
topText = (EditText) findViewById(R.id.topedit);
bottomtext = (EditText) findViewById(R.id.bottomedit);
top = (TextView) findViewById(R.id.top);
bottom = (TextView) findViewById(R.id.bottom);
Button myButton = (Button) findViewById(R.id.button);
myButton.setOnClickListener(
new Button.OnClickListener() {
public void onClick(View V) {
top.setText((CharSequence) topText);
bottom.setText((CharSequence) bottomtext);
}
}
);
}
Simply do this:
if(topText.getText()!=null){
top.setText(topText.getText().toString());
}
if(bottomtext.getText()!=null){
bottom.setText(bottomtext.getText().toString());
}
Try this to get text of the EditText field:
CharSequence text = topText.getText();
And set the text above for the textView:
top.setText(text);
Use this short example to understand the concept
store=ret.getText().toString();
show.setText(store);
Explanation
ret: is the name of the edit text field;
store: is used to hold anything gotten from ret (text field)
show.setText(store) displays the result in the textview
This question has already been answered:
"Use getText() on your EditText object".
Get Value of a Edit Text field
Next time do a quick search ;)
My problem is I have a button and that button is doing create new textview but that textviews removing when i click back button. How I saved textviews in activity?
My java sourcecodes here
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.notlar);
Button btnNotEkle = (Button) findViewById(R.id.btnNotEkle);
final EditText etNot = new EditText(NotEkle.this);
final LinearLayout layoutNotlar = (LinearLayout) findViewById(R.id.layoutNotlar);
final TextView tv1 = (TextView) findViewById(R.id.tvnotOrtalama);
etNot.setInputType(InputType.TYPE_CLASS_NUMBER);
AlertDialog.Builder notEkle = new AlertDialog.Builder(NotEkle.this);
notEkle.setTitle("Notunuz");
notEkle.setView(etNot);
//Positive button
notEkle.setPositiveButton("Tamam", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
tvNot = new TextView(NotEkle.this);//girelen not burdaki textview e yazdırılacak.
girilenNot = etNot.getText().toString();//Girilen notu alıyoruz
tvNot.setText(girilenNot);//girilen notu textviewa veriyoruz
notTopla += Integer.parseInt(girilenNot);//Notları topluyoruz
layoutNotlar.addView(tvNot);
count = layoutNotlar.getChildCount();
dersOrtalamaYazdir=String.valueOf(dersOrtalama());
tv1.setText("Ders Ortalamanız : "+dersOrtalamaYazdir);
dialog.cancel();
}
});
final AlertDialog notEkleCreate = notEkle.create();
btnNotEkle.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
notEkleCreate.show();
}
});
}
}
Try giving your TextView objects ids.
You need to know that when you click back button - by default your activity is destroyed so all views are removed.
When you are adding new TextView you should add information about this TextView (like the text itself) to some list declared as field in your activity.
Then you can save this list when activity is recreated see: onSaveInstanceState/nRestoreInstanceState
You can also pass this list back or to new activity so that they can take actions based on this list.
Following my understanding your TextView had been created inside Dialog and after you press back button the dialog dismisses and all views you created inside will be removed and you can't access it from your Activity.
You may try to create TextView in onCreate, pass and in Dialog just call setText. I hope this is the answer you're looking for.
Cheers.
I have in my layout, a TextView, the id is textView1. In my java class I have
this piece of code:
TextView link1 = (TextView) findViewById(R.id.tJabalEnlace1);
link1.setText("https://stackoverflow.com/");
Linkify.addLinks(link1, Linkify.ALL);
What this does is, initialize the textView, set the text of it, and linkifies it. It works just fine, but what I would like to do is, make the textView be "Link" and the direction to be the link in the code, but I don't know how.
UPDATE:
I wanted to do it with linkify, I found another way of doing it:
-Set the text View Clickable in the layout file.
-Java:
TextView link1 = (TextView) findViewById(R.id.tJabalEnlace1);
link1.setPaintFlags(Paint.UNDERLINE_TEXT_FLAG);
link1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Uri uri = Uri.parse("https://stackoverflow.com/");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);}});
}
I am adding textviews dynamically to a linear layout and want to get the name of the textview clicked in OnClickListener of linear layout.This is the code:
m_lvSideIndex = (LinearLayout)ShowTheContacts1.this.findViewById(R.id.sideIndex);
TextView l_tempText = null;
for(int l_a = 0;l_a < m_arrayOfAlphabets.length;l_a++)
{
l_tempText = new TextView(ShowTheContacts1.this);
l_tempText.setGravity(Gravity.CENTER);
l_tempText.setTextSize(15);
l_tempText.setTextColor(getResources().getColor(R.color.black));
LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1);
l_tempText.setLayoutParams(params);;
l_tempText.setText(m_arrayOfAlphabets[l_a]);
m_lvSideIndex.addView(l_tempText);
m_lvSideIndex.setTag(l_a);
}
m_lvSideIndex.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
String l_itemSelected = (String)v.toString(); //Want to get the name of textview selected here
});
Please help me.Thanks in advance.
You can do with it the help of getTag()
first setTag() the value i.e TextName
m_lvSideIndex.setTag(m_arrayOfAlphabets[l_a]);
m_lvSideIndex.setTag(l_a, R.id.sideIndex);
and get the value via getTag()
m_lvSideIndex.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
String l_itemSelected = (String)v.getTag();
Integer l_position = (Integer)v.getTag(R.id.sideIndex);
});
Add your click listener to each text view, you will then receive the view as parameter in onClick.
OnClickListener works on TextView. Make sure you set Clickable property of TextView to true.
((TextView)v.findviewbyTag(R.id.label)).getText();
I hope this work