AlertDialog error: You need to use a Theme.AppCompat theme (or descendant) with this activity

Question

I got this issue and dont know how to fix it. here my manifest

<activity
        android:name=".MainActivity"
        android:label="@string/title_activity_main"
        android:theme="@style/Theme.AppCompat.NoActionBar" />

here my onclick in listAdapter

holder.iconDelete.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //need to confirm it first
            new AlertDialog.Builder(context)
                    .setTitle("Delete Setcard")
                    .setMessage("Do you really want to delete setcard?")
                    .setIcon(android.R.drawable.ic_dialog_alert)
                    .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {

                        public void onClick(DialogInterface dialog, int whichButton) {
                            //run API volley
                            deleteSetcard(setcard_id);
                        }})
                    .setNegativeButton(android.R.string.no, null).show();
        }
    });

I tried other solution like changing the theme using Theme.AppCompat.Light

but none working

Possible duplicate of [You need to use a Theme.AppCompat theme (or descendant) with this activity. Change to Theme.AppCompat causes other error](https://stackoverflow.com/questions/30180052/you-need-to-use-a-theme-appcompat-theme-or-descendant-with-this-activity-chan) — Ramesh sambu, Dec 20 '17 at 09:35
Possible duplicate of [You need to use a Theme.AppCompat theme (or descendant) with this activity. Change to Theme.AppCompat causes other error](https://stackoverflow.com/questions/30180052/you-need-to-use-a-theme-appcompat-theme-or-descendant-with-this-activity-chan) — Vidhi Dave, Dec 20 '17 at 09:41

score 4 · Answer 1 · answered Dec 20 '17 at 09:32

4

I hope this one is help to you

 <style name="myDialog" parent="Theme.AppCompat.Dialog">
    <item name="android:windowNoTitle">true</item>
    ...
 </style>

new AlertDialog.Builder(new ContextThemeWrapper(this, R.style.myDialog));

answered Dec 20 '17 at 09:32

Nikunj Paradva

15,332
5
54
65

score 1 · Answer 2 · answered Oct 29 '18 at 07:16

I face such a case and I was managed to solve it. Here it is:

define your Alert Dialog in MainActivity class, example:

   public class MainActivity extends AppCompatActivity {

      AlertDialog.Builder alertDialog;

then initialize it on OnCreate() method just like below:
```
alertDialog = new AlertDialog.Builder(this);
```

then you can do the rest of alert Dialog customization like icon, title, message anywhere you like. in my case i used it in onFinish() of count down timer as shown below:

public void onFinish() {

            alertDialog.setIcon(android.R.drawable.alert_light_frame);
            alertDialog.setTitle("You are done");
            alertDialog.setMessage("you got it");
            alertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                    runTheCode();
                }
            });
            alertDialog.show();

score 0 · Answer 3 · answered Dec 20 '17 at 09:36

0

When using an AppCompat theme, you must ensure that your Activity extends AppCompatActivity, and that you import android.support.v7.app.AlertDialog from the Android Support Library instead of android.app.AlertDialog

answered Dec 20 '17 at 09:36

Headcracker

522
4
19

mehul chauhan · Answer 4 · 2017-12-20T10:45:46.650

Try this

     <style name="InvitationDialog" 
     parent="Theme.AppCompat.Light.Dialog.Alert">
    <item name="colorAccent">@color/blue</item>
    <item name="android:textColorPrimary">@color/gray</item>
    <item name="android:editTextColor">@color/gray</item>
    <item name="android:background">@color/white</item>
    </style>

Code

       new AlertDialog.Builder(context,R.style.InvitationDialog)
       .setTitle("Delete Setcard")
                .setMessage("Do you really want to delete setcard?")
                .setIcon(android.R.drawable.ic_dialog_alert)
                .setPositiveButton("Yes", new 
                DialogInterface.OnClickListener() {

                    public void onClick(DialogInterface dialog, int 
                   whichButton) {
                        //run API volley
                        deleteSetcard(setcard_id);
                    }})
                .setNegativeButton("No", null).show();
                }
});

AlertDialog error: You need to use a Theme.AppCompat theme (or descendant) with this activity

4 Answers4