CODEWITHSUNDEEP
javaandroiddialogandroid-alertdialogandroid-theme
Samuel Owino
Samuel Owino

Reputation: 745

How to avoid AlertDialog Crash on Passing Context

I have noticed a trend with the AlertDialog in Android. It inconsistently crashes complaining of the type of Context passed to the AlertBuilder constructor.

Is this a known issue and how can I completely avoid this from happening in production.

    AlertDialog.Builder alertBuilder = new AlertDialog.Builder(getApplicationContext())
                                .setTitle("Title")
                                .setMessage("Your message that the user won't see cause this might just crash the app")
                                .setPositiveButton("Okay", new DialogInterface.OnClickListener() {
                                    @Override
                                    public void onClick(DialogInterface dialogInterface, int i) {
                                        dialogInterface.dismiss();
                                    }
                                });
                        alertBuilder.create().show();




    java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
            at androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor(AppCompatDelegateImpl.java:843)
            at androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor(AppCompatDelegateImpl.java:806)
            at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:693)
            at androidx.appcompat.app.AppCompatDialog.setContentView(AppCompatDialog.java:95)
            at androidx.appcompat.app.AlertController.installContent(AlertController.java:232)
            at androidx.appcompat.app.AlertDialog.onCreate(AlertDialog.java:279)
            at android.app.Dialog.dispatchOnCreate(Dialog.java:465)
            at android.app.Dialog.show(Dialog.java:333)
            at org.aplusscreators.com.views.onboarding.SubscriptionPlanActivity$4.onClick(SubscriptionPlanActivity.java:145)
            at android.view.View.performClick(View.java:6719)
            at android.view.View.performClickInternal(View.java:6677)
            at android.view.View.access$3400(View.java:797)
            at android.view.View$PerformClick.run(View.java:26475)
            at android.os.Handler.handleCallback(Handler.java:873)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:226)
            at android.app.ActivityThread.main(ActivityThread.java:7212)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:576)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:956)

Upvotes: 1

Views: 337

Answers (2)

Gabriele Mariotti
Gabriele Mariotti

Reputation: 363825

The issue is here:

new AlertDialog.Builder(getApplicationContext())

You have to pass Activity as context instead of getApplicationContext().
The ApplicationContext has not the app theme.

Upvotes: 1

SABANTO
SABANTO

Reputation: 1506

Set a theme for that activity either in the manifest or programmatically before onCreate in the class. You can also set it globally for the entire app inside application tag of manifest.

<application
    android:theme="@style/AppTheme">
....

Upvotes: 1

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