I have an AlertDialog which displays an array into a single selected choice:
protected boolean blFrom, blTo;
protected void showSelectToDialog() {
boolean[] checkedDate = new boolean[toDate.length];
int count = toDate.length;
DialogInterface.OnClickListener setD2 = new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
//TODO Auto-generated method stub
onChangeSelectedTo(which);
}
};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select To Year");
builder.setSingleChoiceItems(toDate, count, setD2);
builder.setCancelable(true);
builder.setPositiveButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
dialog2 = builder.create();
dialog2.show();
}
protected void onChangeSelectedTo(int j) {
bTo.setText(toDate[j]);
sTo = ((AlertDialog)dialog2).getListView().getCheckedItemPosition();
blTo = true;
displayToast(String.valueOf(sTo));
to = j;
dialog.dismiss();
}
What I want to do is the first time it loads it should display the default. Once I select a choice and the dialog closes and I bring up the same dialog again it should show the previously selected choice I made and scroll to it.
How do I accomplish it?
As of right now, I can get the selected position but what next?
You can store the chosen value in a variable of your Activity or using SharedPreferences
Related
How do I set the max of how many characters can be entered. So now the user can enter a lot in the alertdialog While it should have the max. it's not like XML. That would have been easier, any tips for this alert dialog?
private void RequestNewGroup()
{
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this, R.style.AlertDialog);
builder.setTitle("Enter Group Name ");
final EditText groupNameField = new EditText(MainActivity.this);
groupNameField.setHint("");
builder.setView(groupNameField);
builder.setPositiveButton("Create", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i)
{
String groupName = groupNameField.getText().toString();
if (TextUtils.isEmpty(groupName))
{
Toast.makeText(MainActivity.this, "Please write Group Name...", Toast.LENGTH_SHORT).show();
}
else
{
CreateNewGroup(groupName);
}
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i)
{
dialogInterface.cancel();
}
});
builder.show();
}
You need to add a InputFilter to your EditText
final EditText groupNameField = new EditText(MainActivity.this);
groupNameField.setHint("");
// ### -> max length
groupNameField.setFilters(new InputFilter[]{ new InputFilter.LengthFilter(###) });
I have a button that open a dialog for change a number. The button is in activity, and generate a new class names dialogs, for storage different dialogs.
Dialog consigna: Dialogs.class
public String consigna(){
AlertDialog.Builder alert = new AlertDialog.Builder(ctxt);
alert.setTitle("Nueva temperatura");
alert.setMessage("Agrega una nueva temperatura");
final EditText input = new EditText(ctxt);
input.setInputType(InputType.TYPE_CLASS_NUMBER);
input.setRawInputType(InputType.TYPE_CLASS_NUMBER);
alert.setView(input);
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
data = input.getText().toString();
}
});
alert.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
//Put actions for CANCEL button here, or leave in blank
}
});
alert.show();
return data;
}
on click button: MainActivity
//I need change these two values:
final public double temperatura = 200.3;
String newData;
...
public void onClick(View v) {
switch (v.getId()){
case R.id.tempConsigna:
dialog = new Dialogs(MainActivity.this);
String data = dialog.consigna();
newData = data;
break;
...//other cases...
The issue is in newData = data; I doesn't have a data, because the dialog not are closed. The dialog work in other thread,no?
How to change newData var with the dialog result? It is posible into a dialogs class?
You need a callback method implemented via an interface:
public String consigna(final OnConfirm confirm){
final String[] data = new String[1];
AlertDialog.Builder alert = new AlertDialog.Builder(activity);
alert.setTitle("Nueva temperatura");
alert.setMessage("Agrega una nueva temperatura");
final EditText input = new EditText(activity);
input.setInputType(InputType.TYPE_CLASS_NUMBER);
input.setRawInputType(InputType.TYPE_CLASS_NUMBER);
alert.setView(input);
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
data[0] = input.getText().toString();
confirm.onConfirm(data[0]);
}
});
alert.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
//Put actions for CANCEL button here, or leave in blank
}
});
alert.show();
return data[0];
}
public interface OnConfirm {
void onConfirm(String s);
}
And in your Main Activity
Dialogs dialog = new Dialogs(MainActivity.this);
dialog.consigna(new Dialogs.OnConfirm() {
#Override
public void onConfirm(String s) {
Log.d("data", s);
}
});
It will not return result as you want but after click on dialog ok button then access data variable. no need to return.
I am trying to get a number of cards to pop up using alertdialog.builder. Even though I did .create().show(); the dialog does not show on my screen. I'm not sure what is causing this problem.
I have marked the place where I am getting nothing in the comments.
Java Code:
ImageView image_questionmark= new ImageView(this);
final ImageView image_pass = new ImageView(this);
final ImageView image_youpay = new ImageView(this);
image_questionmark.setImageResource(R.drawable.card_questionmark);
image_pass.setImageResource(R.drawable.card_pass);
image_youpay.setImageResource(R.drawable.card_youpay);
AlertDialog.Builder dialog = new AlertDialog.Builder(PayActivity.this);
for(int i=0; i<people; i++) {
/*PASS*/
if(array[i] == 0) {
dialog.setView(image_questionmark);
dialog.setPositiveButton("FLIP", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
new AlertDialog.Builder(PayActivity.this)
.setView(image_pass)
.setPositiveButton("NEXT", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish(); /*move on to next value in array*/
}
}).create().show(); /*HERE: Nothing showed on my screen when running debugger...*/
}
});
dialog.create().show();
/*If not the first card, show previous card*/
if(i!=0) {
dialog.setNegativeButton("PREVIOUS", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
i--; /*return to previous value in array*/
} /*First card*/
else {
dialog.setNegativeButton("PREVIOUS", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "No previous card", Toast.LENGTH_LONG).show();
}
});
}
}/*YOU PAY*/
else {
dialog.setView(image_questionmark);
dialog.setPositiveButton("FLIP", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
new AlertDialog.Builder(PayActivity.this)
.setView(image_youpay)
.setPositiveButton("NEXT", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish(); /*move on to next value in array*/
}
}).create().show();
}
});
dialog.create().show();
/*If not the first card, show previous card*/
if(i!=0) {
dialog.setNegativeButton("PREVIOUS", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
i--; /*return to previous value in array*/
} /*First card*/
else {
dialog.setNegativeButton("PREVIOUS", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "No previous card", Toast.LENGTH_LONG).show();
}
});
}
}
}
Thank you for your time :)
I did not try your code.But you can try it like -
First initilise your image object then assign to another final variable.
I think it will work.
ImageView image_pas1 = new ImageView(this);
final ImageView image_youpay = new ImageView(this);
image_questionmark.setImageResource(R.drawable.card_questionmark);
image_pass1.setImageResource(R.drawable.card_pass);
image_youpay.setImageResource(R.drawable.card_youpay);
final ImageView image_pass=image_pass;
You need to set LayoutParams for your ImageView in order to know how to draw itself. Maybe something like this:
image_questionmark.setLayoutParams(new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT, // width
LayoutParams.WRAP_CONTENT)); // height
And do this as well for your other 2 ImageViews
First of all, Dialogs need
buildervariablename.create();
only.
Second, every single Dialog has to be in a seperate class, like this:
public class TestDialog extends DialogFragment
{
// Put your dialog code in here
}
And then you just call your dialog there, where it is needed. Inside another method, or even another dialog, by using the following:
DialogFragment fragment = new TestDialog();
fragment.show(getFragmentManager(),"testdialog");
Hope this helped you, if you have further questions, just comment this answer.
I try to display a RatingBar in a AlertDialog (It is regularly called from a Handler).
My problem is that I can't change the number of stars. I know there is a lot of answers ot there, but always passing through the xml, which I don't want.
Can anyone help ?
public void taskRatingPopup() {
final AlertDialog.Builder popDialog = new AlertDialog.Builder(this);
final RatingBar rating = new RatingBar(this);
rating.setMax(5);
rating.setNumStars(5);
rating.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
popDialog.setIcon(android.R.drawable.btn_star_big_on);
popDialog.setTitle("BlaBla");
popDialog.setView(rating);
// Button OK
popDialog.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
writeRatingFile(rating.getProgress());
//Remove the dialog
dialog.dismiss();
}
})
// Button Cancel
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
popDialog.create();
popDialog.show();
}
Thanks a lot for any help !
//code block
public void itemRatingPopup() {
final AlertDialog.Builder popDialog = new AlertDialog.Builder(
mainScreen);
final RatingBar rating = new RatingBar(mainScreen);
rating.setNumStars(5);
rating.setStepSize(0.1f);
rating.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
LinearLayout parent = new LinearLayout(mainScreen);
parent.setGravity(Gravity.CENTER);
parent.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
parent.addView(rating);
// popDialog.setIcon(android.R.drawable.btn_star_big_on);
popDialog.setTitle(mainScreen.getResources().getString(
R.string.user_ratings));
popDialog.setView(parent);
// Button OK
popDialog.setPositiveButton(R.string.submit,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
String fanid = StorageManager.getInstance()
.getSharedPrefs(mainScreen)
.getString(AppConstants.PREFS_FAN_ID, "0");
if (fanid != null) {
new SubmitUserRatingAsyncTask("Item", ""
+ item.getId(), fanid, rating.getRating())
.execute();
}
dialog.dismiss();
}
}).setNegativeButton(R.string.cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
popDialog.create();
popDialog.show();
}
your dialog UI will not show exactly 5 stars, it will may show any number of start because you have assign RatingBar as a root view of Dialog, for reference see the above code:
you can change rating programatically by below code:
float myRating=0f;
rating.setRating(myRating)
For adding the no. of Stars in your Rating bar,
just get the that number and use this tag.
rb_rate.setNumStars(<no.of stars,integer value>);
Alright, this might be kinda simple, but I cannot figure out how to do this. How can I change this function to return the String class_name? I know that I need to change the function from void to String, but what else do I need to do?
Much appreciated!
public void addClass() {
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Add Class");
final EditText input = new EditText(this);
alert.setView(input);
alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String class_name = input.getText().toString();
}
});
alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
});
alert.show();
}
Returning the class_name value doesn't help. You have to implement a callback method that takes the value and performs the required action:
public void addClass() {
AlertDialog.Builder alert = new AlertDialog.Builder(this);
// ...
alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
setClassName(input.getText().toString());
}
});
// ...
}
protected void setClassName(String class_name) {
// do what ever has to be done with class_name
}
The behavior (a synchronous dialog) you are trying to get deliberately does not exist in android. Whatever you want to happen when the dialog button is clicked has to be placed in the OnClickListener.OnClick method.
Assuming alert.show does not return until input.getText() contains the entered value, you could try:
public void addClass() {
final Vector<String> retval = new Vector<String>();
retval.add("");
...
...
alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String class_name = input.getText().toString();
retval.set(0,class_name);
}
});
...
...
return retval.get(0);
}
AlertDialog is asynchronous and therefore what you want to achieve is not possible through that code.
you could set String class_name as global ad then initialize it to
class_name = input.getText().toString();
inside the onClick method of alert Button.