Get current Activity with Android

Question

I have a method that scans the position and gets called on every activity I have, everytime an actions trigger I need to show an alertDialog, this is the code:

AlertDialog.Builder builder = new AlertDialog.Builder(mMainActivity.this);
                        builder.setMessage("test")
                           .setCancelable(false)
                           .setPositiveButton("go", new DialogInterface.OnClickListener() {
                               public void onClick(DialogInterface dialog, int id) {
                                   Intent intent = new Intent(mMainActivity.this,LocationDetails.class);
                                    intent.putExtra("placeId",1);
                                    startActivity(intent);

                               }
                           })
                           .setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                               public void onClick(DialogInterface dialog, int id) {

                                    dialog.cancel();
                               }
                           });
                        AlertDialog alert = builder.create();
                        alert.show();

But How can I create the alert on the current activity? Because now it only gets created on AlertDialog.Builder(mMainActivity.this);

score 1 · Answer 1 · answered May 28 '15 at 15:49

1

Have this AlertDialog logic in a public class and make call using a method with passing context .

For example:

showAlert(youractivitycontext);

Use the Context as your current activity.

answered May 28 '15 at 15:49

Gowtham Kumar

534
8
22

score 1 · Answer 2 · edited May 23 '17 at 11:51

1

You have various options... what you have to know:

You can show AlertDialogs from Activity only

You have various options

Pass your activity instance as parameter in constructor of other classes... then you can call activity from everywhere
Use notifications (class does not need to be an Activity)
Check this question. otherwise

edited May 23 '17 at 11:51

Community

1
1

answered May 28 '15 at 15:49

Jordi Castilla

26,609
8
70
109

score 0 · Answer 3 · answered May 28 '15 at 15:57

create class vis static method in vich you transfer "link" yours activitis 
for example from MainActivity call :
DialogUtils.createSomeDialog(MainActivity.this); 
or from SecondActivity:
DialogUtils.createSomeDialog(SecondActivity.this);


    public class DialogUtils
{
    public static void createSomeDialog(final Context context){
        AlertDialog.Builder builder = new AlertDialog.Builder(context);
        builder.setMessage("test")
                .setCancelable(false)
                .setPositiveButton("go", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        Intent intent = new Intent(context,LocationDetails.class);
                        intent.putExtra("placeId",1);
                        context.startActivity(intent);

                    }
                })
                .setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {

                        dialog.cancel();
                    }
                });
        AlertDialog alert = builder.create();
        alert.show();
    }
}

Get current Activity with Android

3 Answers3