I have a listview with elements, well, when clicking on one of them I should see a dialog or similar that gives two options in any way and says I accept or I do not accept and that from the code I can know which one has chosen one. How can I face this? What event should I modify and how do I add the dialog?
Add a listener, specifically OnItemClickListener to your ListView, when you click on an element of the ListView, you would call the dialog:
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
Log.i("Click", "click en el elemento " + position + " de mi ListView");
muestraDialogo();
}
});
The method to call would be the one that creates the confirmation dialog:
private void muestraDialogo(){
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Deseas realizar alguna acción?")
.setCancelable(false)
.setPositiveButton("Si", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// Aquí lo que deseas realizar
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
Here you can see the documentation on how to create a dialogue using Dialog.Builder
You can try
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("¿Quieres continuar?")
.setCancelable(false)
.setPositiveButton("Si", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// tu código
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();