How do I display an alert dialog on Android

Question

I want to display a dialog popup window with a message to the user that shows  Are you sure you want to delete this entry   with one button that says  Delete   When Delete is touched  it should delete that entry  otherwise nothing   I have written a click listener for those buttons  but how do I invoke a dialog or popup and its functionality

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Kotlin Custom dialog  In Case if you want to create custom dialog Dialog activity    R style LoadingIndicatorDialogStyle           apply                  requestWindowFeature Window FEATURE NO TITLE              setCancelable true              setContentView R layout define your custom view id here                 access your custom view buttons editText like below z             val createBt   findViewById lt TextView gt  R id clipboard create project              val cancelBt   findViewById lt TextView gt  R id clipboard cancel project              val clipboard et   findViewById lt TextView gt  R id clipboard et              val manualOption                   findViewById lt TextView gt  R id clipboard manual add project option                 if you want to perform any operation on the button do like this              createBt setOnClickListener                     handle your button click here                 val enteredData   clipboard et text toString                   if  enteredData isEmpty                          Utils toast  quot Enter project details quot                     else                       navigateToAddProject enteredData  true                      dismiss                                                cancelBt setOnClickListener                   dismiss                             manualOption setOnClickListener                   navigateToAddProject  quot  quot   false                  dismiss                             show              Create LoadingIndicatorDialogStyle in style xml  lt style name  quot LoadingIndicatorDialogStyle quot  parent  quot Theme AppCompat Light Dialog Alert quot  gt   lt item name  quot android windowIsTranslucent quot  gt true lt  item gt   lt item name  quot android windowBackground quot  gt  android color transparent lt  item gt   lt item name  quot android windowContentOverlay quot  gt  null lt  item gt   lt item name  quot android windowNoTitle quot  gt true lt  item gt   lt item name  quot android statusBarColor quot  gt  color black transperant lt  item gt   lt item name  quot android layout gravity quot  gt center lt  item gt   lt item name  quot android background quot  gt  android color transparent lt  item gt   lt  -- lt item name  quot android windowAnimationStyle quot  gt  style MaterialDialogSheetAnimation lt  item gt -- gt

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new AlertDialog Builder context       setTitle  title        setMessage  message        setPositiveButton android R string ok  null       show

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you can try this          AlertDialog Builder dialog   new AlertDialog Builder MainActivity this   dialog setCancelable false   dialog setTitle  Dialog on Android    dialog setMessage  Are you sure you want to delete this entry      dialog setPositiveButton  Delete   new DialogInterface OnClickListener          Override     public void onClick DialogInterface dialog  int id              Action for  Delete                     setNegativeButton  Cancel    new DialogInterface OnClickListener                  Override             public void onClick DialogInterface dialog  int which                  Action for  Cancel                              final AlertDialog alert   dialog create    alert show      For more info check this link

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Try this code  AlertDialog Builder alertDialogBuilder   new AlertDialog Builder MainActivity this           set title     alertDialogBuilder setTitle  AlertDialog Title            set dialog message     alertDialogBuilder              setMessage  Some Alert Dialog message                 setCancelable false               setPositiveButton  OK   new DialogInterface OnClickListener                     public void onClick DialogInterface dialog  int id                                Toast makeText this   OK button click    Toast LENGTH SHORT  show                                                   setNegativeButton  CANCEL  new DialogInterface OnClickListener                     public void onClick DialogInterface dialog  int id                               Toast makeText this   CANCEL button click    Toast LENGTH SHORT  show                         dialog cancel                                              create alert dialog     AlertDialog alertDialog   alertDialogBuilder create            show it     alertDialog show

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showDialog MainActivity this   title    message    OK    Cancel                    Kotlin  fun showDialog context  Context  title  String  msg  String                 positiveBtnText  String  negativeBtnText  String                  positiveBtnClickListener  DialogInterface OnClickListener                 negativeBtnClickListener  DialogInterface OnClickListener    AlertDialog       val builder   AlertDialog Builder context               setTitle title               setMessage msg               setCancelable true               setPositiveButton positiveBtnText  positiveBtnClickListener      if  negativeBtnText    null          builder setNegativeButton negativeBtnText  negativeBtnClickListener      val alert   builder create       alert show       return alert     Java  public static AlertDialog showDialog  NonNull Context context   NonNull String title   NonNull String msg                                        NonNull String positiveBtnText   Nullable String negativeBtnText                                        NonNull DialogInterface OnClickListener positiveBtnClickListener                                        Nullable DialogInterface OnClickListener negativeBtnClickListener        AlertDialog Builder builder   new AlertDialog Builder context               setTitle title               setMessage msg               setCancelable true               setPositiveButton positiveBtnText  positiveBtnClickListener       if  negativeBtnText    null          builder setNegativeButton negativeBtnText  negativeBtnClickListener       AlertDialog alert   builder create        alert show        return alert

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With Anko  official library from developers of Kotlin   you can simple use  alert  Alert title   show     or more complex one   alert  Hi  I m Roy    Have you tried turning it off and on again          yesButton   toast  Oh            noButton      show     To import Anko   implementation  org jetbrains anko anko 0 10 8

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This is definitely help for you  Try this code  On click of a button  you can put one  two or three buttons with an alert dialog     SingleButtton setOnClickListener new View OnClickListener          public void onClick View arg0               Creating alert Dialog with one Button          AlertDialog alertDialog   new AlertDialog Builder AlertDialogActivity this  create                Setting Dialog Title         alertDialog setTitle  Alert Dialog                Setting Dialog Message         alertDialog setMessage  Welcome to Android Application                Setting Icon to Dialog         alertDialog setIcon R drawable tick               Setting OK Button         alertDialog setButton  OK   new DialogInterface OnClickListener                  public void onClick DialogInterface dialog int which                                   Write your code here to execute after dialog    closed                 Toast makeText getApplicationContext    You clicked on OK   Toast LENGTH SHORT  show                                          Showing Alert Message         alertDialog show               btnAlertTwoBtns setOnClickListener new View OnClickListener          public void onClick View arg0               Creating alert Dialog with two Buttons          AlertDialog Builder alertDialog   new AlertDialog Builder AlertDialogActivity this               Setting Dialog Title         alertDialog setTitle  Confirm Delete                   Setting Dialog Message         alertDialog setMessage  Are you sure you want delete this                 Setting Icon to Dialog         alertDialog setIcon R drawable delete               Setting Positive  Yes  Button         alertDialog setPositiveButton  YES                   new DialogInterface OnClickListener                         public void onClick DialogInterface dialog int which                               Write your code here to execute after dialog                         Toast makeText getApplicationContext     You clicked on YES   Toast LENGTH SHORT  show                                                          Setting Negative  NO  Button         alertDialog setNegativeButton  NO                   new DialogInterface OnClickListener                         public void onClick DialogInterface dialog     int which                               Write your code here to execute after dialog                         Toast makeText getApplicationContext     You clicked on NO   Toast LENGTH SHORT  show                            dialog cancel                                                          Showing Alert Message         alertDialog show               btnAlertThreeBtns setOnClickListener new View OnClickListener          public void onClick View arg0               Creating alert Dialog with three Buttons          AlertDialog Builder alertDialog   new AlertDialog Builder                  AlertDialogActivity this               Setting Dialog Title         alertDialog setTitle  Save File                   Setting Dialog Message         alertDialog setMessage  Do you want to save this file                 Setting Icon to Dialog         alertDialog setIcon R drawable save               Setting Positive Yes Button         alertDialog setPositiveButton  YES               new DialogInterface OnClickListener                      public void onClick DialogInterface dialog                          int which                           User pressed Cancel button  Write Logic Here                     Toast makeText getApplicationContext                                 You clicked on YES                               Toast LENGTH SHORT  show                                                  Setting Negative No Button    Neutral means in between yes and cancel button         alertDialog setNeutralButton  NO               new DialogInterface OnClickListener                      public void onClick DialogInterface dialog                          int which                           User pressed No button  Write Logic Here                     Toast makeText getApplicationContext                                 You clicked on NO   Toast LENGTH SHORT                               show                                                  Setting Positive  Cancel  Button         alertDialog setNegativeButton  Cancel               new DialogInterface OnClickListener                      public void onClick DialogInterface dialog                          int which                           User pressed Cancel button  Write Logic Here                     Toast makeText getApplicationContext                                 You clicked on Cancel                               Toast LENGTH SHORT  show                                                 Showing Alert Message         alertDialog show

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Code to delete an entry from the list     --dialog for delete entry--   private void cancelBookingAlert         AlertDialog dialog      final AlertDialog Builder alertDialog   new AlertDialog Builder MainActivity this  R style AlertDialogCustom       alertDialog setTitle  Delete Entry        alertDialog setMessage  Are you sure you want to delete this entry         alertDialog setCancelable false        alertDialog setPositiveButton  Delete   new DialogInterface OnClickListener             public void onClick DialogInterface dialog  int which                 code to delete entry                        alertDialog setNegativeButton  Cancel   new DialogInterface OnClickListener              Override         public void onClick DialogInterface dialog  int which                dialog dismiss                           dialog   alertDialog create        dialog show        Call above method on delete button click

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Use AlertDialog Builder    AlertDialog alertDialog   new AlertDialog Builder this    set icon    setIcon android R drawable ic dialog alert    set title  setTitle  Are you sure to Exit     set message  setMessage  Exiting will call finish   method     set positive button  setPositiveButton  Yes   new DialogInterface OnClickListener          Override     public void onClick DialogInterface dialogInterface  int i         set what would happen when positive button is clicked             finish               set negative button  setNegativeButton  No   new DialogInterface OnClickListener          Override     public void onClick DialogInterface dialogInterface  int i         set what should happen when negative button is clicked         Toast makeText getApplicationContext    Nothing Happened  Toast LENGTH LONG  show              show      You will get the following output     To view alert dialog tutorial use the link below   Android Alert Dialog Tutorial

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Just a simple one  Create a dialog method  something like this anywhere in your Java class   public void openDialog         final Dialog dialog   new Dialog context      Context  this  etc      dialog setContentView R layout dialog demo       dialog setTitle R string dialog title       dialog show        Now create Layout XML dialog demo xml and create your UI design  Here is a sample one I created for demo purposes    lt  xml version  1 0  encoding  utf-8   gt   lt RelativeLayout     xmlns android  http   schemas android com apk res android      android layout width  match parent      android layout height  wrap content  gt        lt TextView         android id    id dialog info          android layout width  match parent          android layout height  wrap content          android padding  10dp          android text   string dialog text   gt        lt LinearLayout         android layout width  match parent          android layout height  40dp          android layout below   id dialog info  gt            lt Button             android id    id dialog cancel              android layout width  0dp              android layout height  match parent              android layout weight  0 50              android background   color dialog cancel bgcolor              android text  Cancel   gt            lt Button             android id    id dialog ok              android layout width  0dp              android layout height  match parent              android layout weight  0 50              android background   color dialog ok bgcolor              android text  Agree   gt       lt  LinearLayout gt   lt  RelativeLayout gt    Now you can call openDialog   from anywhere you like    Here is the screenshot of above code     Note that text and color are used from strings xml and colors xml  You can define your own

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Dialog box  public void dialogBox         AlertDialog Builder alertDialogBuilder   new AlertDialog Builder this       alertDialogBuilder setMessage  Click on Image for tag        alertDialogBuilder setPositiveButton  Ok           new DialogInterface OnClickListener                   Override             public void onClick DialogInterface arg0  int arg1                           alertDialogBuilder setNegativeButton  cancel           new DialogInterface OnClickListener               Override         public void onClick DialogInterface arg0  int arg1                            AlertDialog alertDialog   alertDialogBuilder create        alertDialog show

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I was using this AlertDialog in button onClick method   button setOnClickListener v - gt        AlertDialog Builder builder   new AlertDialog Builder this       LayoutInflater layoutInflaterAndroid   LayoutInflater from this       View view2   layoutInflaterAndroid inflate R layout cancel dialog  null       builder setView view2       builder setCancelable false       final AlertDialog alertDialog   builder create        alertDialog show         view2 findViewById R id yesButton  setOnClickListener v1 - gt  onBackPressed         view2 findViewById R id nobutton  setOnClickListener v12 - gt  alertDialog dismiss           dialog xml   lt androidx constraintlayout widget ConstraintLayout xmlns android  http   schemas android com apk res android  xmlns app  http   schemas android com apk res-auto  android layout width  match parent  android layout height  match parent  android orientation  vertical  gt    lt TextView     android id    id textmain      android layout width  match parent      android layout height  wrap content      android layout margin  5dp      android gravity  center      android padding  5dp      android text   string warning      android textColor   android color black      android textSize  18sp      android textStyle  bold      app layout constraintEnd toEndOf  parent      app layout constraintStart toStartOf  parent      app layout constraintTop toTopOf  parent    gt     lt TextView     android id    id textpart2      android layout width  match parent      android layout height  wrap content      android layout margin  5dp      android gravity  center      android lines  2      android maxLines  2      android padding  5dp      android singleLine  false      android text   string dialog cancel      android textAlignment  center      android textColor   android color black      android textSize  15sp      app layout constraintEnd toEndOf  parent      app layout constraintStart toStartOf  parent      app layout constraintTop toBottomOf    id textmain    gt     lt TextView     android id    id yesButton      android layout width  match parent      android layout height  wrap content      android layout marginStart  40dp      android layout marginTop  5dp      android layout marginEnd  40dp      android layout marginBottom  5dp      android background   87cefa      android gravity  center      android padding  10dp      android text   string yes      android textAlignment  center      android textColor   android color black      android textSize  15sp      app layout constraintEnd toEndOf  parent      app layout constraintStart toStartOf  parent      app layout constraintTop toBottomOf    id textpart2    gt     lt TextView     android id    id nobutton      android layout width  match parent      android layout height  wrap content      android layout marginStart  40dp      android layout marginTop  5dp      android layout marginEnd  40dp      android background   87cefa      android gravity  center      android padding  10dp      android text   string no      android textAlignment  center      android textColor   android color black      android textSize  15sp      app layout constraintEnd toEndOf  parent      app layout constraintStart toStartOf  parent      app layout constraintTop toBottomOf    id yesButton    gt     lt TextView     android layout width  match parent      android layout height  20dp      android layout margin  5dp      android padding  10dp      app layout constraintEnd toEndOf  parent      app layout constraintStart toStartOf  parent      app layout constraintTop toBottomOf    id nobutton    gt   lt  androidx constraintlayout widget ConstraintLayout gt

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you may try this way also  it will provide you material style dialogs  private void showDialog         String text2     lt font color  212121 gt Medi Notification lt  font gt     for custom title color      AlertDialog Builder builder   new AlertDialog Builder this  R style AppCompatAlertDialogStyle       builder setTitle Html fromHtml text2         String text3     lt font color  A4A4A4 gt You can complete your profile now or start using the app and come back later lt  font gt     for custom message     builder setMessage Html fromHtml text3         builder setPositiveButton  DELETE   new DialogInterface OnClickListener                  Override         public void onClick DialogInterface dialog  int which                        toast   Toast makeText getApplicationContext     DELETE   Toast LENGTH SHORT               toast setGravity Gravity CENTER  0  0               toast show                                         builder setNegativeButton  CANCEL   new DialogInterface OnClickListener                  Override         public void onClick DialogInterface dialog  int which                        toast   Toast makeText getApplicationContext     CANCEL   Toast LENGTH SHORT               toast setGravity Gravity CENTER  0  0               toast show                          builder show

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new AlertDialog Builder v getContext    setMessage  msg to display    show

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I have created a dialog for asking a Person whether he wants to call a Person or not   import android app Activity  import android app AlertDialog  import android content DialogInterface  import android content Intent  import android net Uri  import android os Bundle  import android view View  import android view View OnClickListener  import android widget ImageView  import android widget Toast   public class Firstclass extends Activity         Override     protected void onCreate Bundle savedInstanceState             super onCreate savedInstanceState            setContentView R layout first            ImageView imageViewCall    ImageView  findViewById R id ring mig            imageViewCall setOnClickListener new OnClickListener                  Override             public void onClick View v                                try                                       showDialog  0728570527                                      catch  Exception e                                        e printStackTrace                                                           public void showDialog final String phone  throws Exception               AlertDialog Builder builder   new AlertDialog Builder Firstclass this            builder setMessage  Ring      phone            builder setPositiveButton  Ring   new DialogInterface OnClickListener                          Override             public void onClick DialogInterface dialog  int which                                Intent callIntent   new Intent Intent ACTION DIAL      Intent ACTION CALL                    callIntent setData Uri parse  tel     phone                     startActivity callIntent                    dialog dismiss                                       builder setNegativeButton  Avbryt   new DialogInterface OnClickListener                          Override             public void onClick DialogInterface dialog  int which                                dialog dismiss                                       builder show

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In past few days my co-workers keep asking me about using AlertDialog in Xamarin Android and almost all of them sent this question as the ref which they read before asking me  and didn t find the answer   so here is Xamarin Android  C   version   var alertDialog   new AlertDialog Builder this     this  Activity      SetTitle  Hello         SetMessage  Are you sure         SetPositiveButton  Ok    sender  e    gt       ok things            SetNegativeButton  Cancel    sender  e    gt       cancel things            Create     alertDialog Show        you can customize your AlertDialog  like so var tvMessage   alertDialog FindViewById lt TextView gt  Android Resource Id Message   tvMessage TextSize   13

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public void showSimpleDialog View view           Use the Builder class for convenient dialog construction     AlertDialog Builder builder   new AlertDialog Builder MainActivity this       builder setCancelable false       builder setTitle  AlertDialog Title        builder setMessage  Simple Dialog Message        builder setPositiveButton  OK      new DialogInterface OnClickListener              Override         public void onClick DialogInterface dialog  int id                                         setNegativeButton  Cancel    new DialogInterface OnClickListener              Override         public void onClick DialogInterface dialog  int which                               Create the AlertDialog object and return it     builder create   show        Also check out my blog on Dialogs in Android  you will find all the details here  http   www fahmapps com 2016 09 26 dialogs-in-android-part1

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Just be careful when you want to dismiss the dialog - use dialog dismiss    In my first attempt I used dismissDialog 0   which I probably copied from some place  which sometimes works  Using the object the system supplies sounds like a safer choice

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AlertDialog Builder builder   new AlertDialog Builder this       builder setTitle  This is Title        builder setMessage  This is message for Alert Dialog        builder setPositiveButton  Positive Button    dialog  which  - gt  onBackPressed         builder setNegativeButton  Negative Button    dialog  which  - gt  dialog cancel         builder show      This is a way which alike to create the Alert dialog with some line of code

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This is done in kotlin  val builder  AlertDialog Builder   if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                AlertDialog Builder this  android R style Theme Material Dialog Alert            else               AlertDialog Builder this                    builder setTitle  Delete Alert                     setMessage  Are you want to delete this entry                     setPositiveButton  YES     dialog  which - gt                                      setNegativeButton  NO     dialog  which - gt                                      setIcon R drawable ic launcher foreground                   show

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Alert dialog with edit text  AlertDialog Builder builder   new AlertDialog Builder context    Context is activity context final EditText input   new EditText context   builder setTitle getString R string remove item dialog title            builder setMessage getString R string dialog message remove item     builder setTitle getString R string update qty                builder setMessage                  LinearLayout LayoutParams lp   new LinearLayout LayoutParams                      LinearLayout LayoutParams MATCH PARENT                      LinearLayout LayoutParams MATCH PARENT               input setLayoutParams lp               input setHint getString R string enter qty                input setTextColor ContextCompat getColor context  R color textColor                input setInputType InputType TYPE CLASS NUMBER               input setText  String in edit text you want                builder setView input      builder setPositiveButton getString android R string ok                    dialog  which  - gt       Positive button click event         builder setNegativeButton getString android R string cancel                    dialog  which  - gt      Negative button click event                             AlertDialog dialog   builder create            dialog show

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You could use an AlertDialog for this and construct one using its Builder class  The example below uses the default constructor that only takes in a Context since the dialog will inherit the proper theme from the Context you pass in  but there s also a constructor that allows you to specify a specific theme resource as the second parameter if you desire to do so   new AlertDialog Builder context       setTitle  Delete entry        setMessage  Are you sure you want to delete this entry            Specifying a listener allows you to take an action before dismissing the dialog         The dialog is automatically dismissed when a dialog button is clicked       setPositiveButton android R string yes  new DialogInterface OnClickListener             public void onClick DialogInterface dialog  int which                    Continue with delete operation                           A null listener allows the button to dismiss the dialog and take no further action       setNegativeButton android R string no  null       setIcon android R drawable ic dialog alert       show

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Nowadays it s better to use DialogFragment instead of direct AlertDialog creation    How  See  https   stackoverflow com a 21032871 1390874 Why  See  https   stackoverflow com a 13765411 1390874

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You can use this code   AlertDialog Builder alertDialog2   new AlertDialog Builder      AlertDialogActivity this       Setting Dialog Title alertDialog2 setTitle  Confirm Delete           Setting Dialog Message alertDialog2 setMessage  Are you sure you want delete this file         Setting Icon to Dialog alertDialog2 setIcon R drawable delete       Setting Positive  Yes  Btn alertDialog2 setPositiveButton  YES       new DialogInterface OnClickListener             public void onClick DialogInterface dialog  int which                   Write your code here to execute after dialog             Toast makeText getApplicationContext                                You clicked on YES   Toast LENGTH SHORT                       show                          Setting Negative  NO  Btn alertDialog2 setNegativeButton  NO       new DialogInterface OnClickListener             public void onClick DialogInterface dialog  int which                   Write your code here to execute after dialog             Toast makeText getApplicationContext                                You clicked on NO   Toast LENGTH SHORT                       show                dialog cancel                          Showing Alert Dialog alertDialog2 show

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This is a basic sample of how to create an Alert Dialog    AlertDialog Builder dialog   new AlertDialog Builder MainActivity this   dialog setCancelable false   dialog setTitle  Dialog on Android    dialog setMessage  Are you sure you want to delete this entry      dialog setPositiveButton  Delete   new DialogInterface OnClickListener          Override     public void onClick DialogInterface dialog  int id              Action for  Delete                     setNegativeButton  Cancel    new DialogInterface OnClickListener                  Override             public void onClick DialogInterface dialog  int which                  Action for  Cancel                              final AlertDialog alert   dialog create    alert show

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for me  new AlertDialog Builder this       setTitle  Closing application        setMessage  Are you sure you want to exit         setPositiveButton  Yes   new DialogInterface OnClickListener                Override           public void onClick DialogInterface dialog  int which                         setNegativeButton  No   null  show

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Make this static method and use it where ever you want        public static void showAlertDialog Context context  String title  String message  String posBtnMsg  String negBtnMsg                AlertDialog Builder builder   new AlertDialog Builder context               builder setTitle title               builder setMessage message               builder setPositiveButton posBtnMsg  new DialogInterface OnClickListener                      Override                 public void onClick DialogInterface dialog  int which                        dialog cancel                                                  builder setNegativeButton negBtnMsg  new DialogInterface OnClickListener                      Override                 public void onClick DialogInterface dialog  int which                        dialog cancel                                                  AlertDialog dialog   builder create                dialog show

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Simplest Solution For Kotln Developers val alertDialogBuilder  AlertDialog Builder   AlertDialog Builder requireContext        alertDialogBuilder setMessage msg      alertDialogBuilder setCancelable true       alertDialogBuilder setPositiveButton          getString android R string ok          dialog    - gt          dialog cancel              val alertDialog  AlertDialog   alertDialogBuilder create       alertDialog show

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LayoutInflater inflater   LayoutInflater from HistoryActivity this       final View vv   inflater inflate R layout dialog processing tts  null       final AlertDialog Builder alert   new AlertDialog Builder              HistoryActivity this       alert setTitle  Delete        alert setView vv       alert setCancelable false               setPositiveButton  Delete   new DialogInterface OnClickListener                      Override                 public void onClick DialogInterface dialog  int which                        databaseHelperClass deleteHistory list get position  getID                         list clear                        setAdapterForList                                                   setNegativeButton  Cancel                       new DialogInterface OnClickListener                             public void onClick DialogInterface dialog  int id                                dialog cancel                                                           final AlertDialog dialog   alert create        dialog show

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You can create the dialog box using AlertDialog Builder  Try this   AlertDialog Builder builder   new AlertDialog Builder this           builder setMessage  Are you sure you want to delete this entry              builder setPositiveButton  Yes  please   new DialogInterface OnClickListener                  Override             public void onClick DialogInterface dialog  int which                      perform any action                 Toast makeText getApplicationContext     Yes clicked   Toast LENGTH SHORT  show                                       builder setNegativeButton  No   new DialogInterface OnClickListener                  Override             public void onClick DialogInterface dialog  int which                      perform any action                 Toast makeText getApplicationContext     No clicked   Toast LENGTH SHORT  show                                         creating alert dialog         AlertDialog alertDialog   builder create            alertDialog show      To change the color of the positive  amp  negative buttons of Alert dialog you can write the below two lines after alertDialog show     alertDialog getButton AlertDialog BUTTON POSITIVE  setTextColor getResources   getColor R color colorPrimary    alertDialog getButton AlertDialog BUTTON NEGATIVE  setTextColor getResources   getColor R color colorPrimaryDark

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I d like to add on David Hedlund great answer by sharing a more dynamic method than what he posted so it can be used when you do have a negative action to perform and when you don t  i hope it helps   private void showAlertDialog  NonNull Context context   NonNull String alertDialogTitle   NonNull String alertDialogMessage   NonNull String positiveButtonText   Nullable String negativeButtonText   NonNull final int positiveAction   Nullable final Integer negativeAction   NonNull boolean hasNegativeAction        AlertDialog Builder builder      if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP            builder   new AlertDialog Builder context  android R style Theme Material Dialog Alert         else           builder   new AlertDialog Builder context             builder setTitle alertDialogTitle               setMessage alertDialogMessage               setPositiveButton positiveButtonText  new DialogInterface OnClickListener                     public void onClick DialogInterface dialog  int which                        switch  positiveAction                                                case 1                                TODO Do your positive action here                              break                                                                      if hasNegativeAction    negativeAction  null    negativeButtonText  null                            builder setNegativeButton negativeButtonText  new DialogInterface OnClickListener                     public void onClick DialogInterface dialog  int which                        switch  negativeAction                                                case 1                                TODO Do your negative action here                             break                            TODO  add cases when needed                                                                                   builder setIcon android R drawable ic dialog alert               builder show

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Try this code   AlertDialog Builder builder1   new AlertDialog Builder context   builder1 setMessage  Write your message here     builder1 setCancelable true    builder1 setPositiveButton       Yes       new DialogInterface OnClickListener             public void onClick DialogInterface dialog  int id                dialog cancel                       builder1 setNegativeButton       No       new DialogInterface OnClickListener             public void onClick DialogInterface dialog  int id                dialog cancel                       AlertDialog alert11   builder1 create    alert11 show

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The code which David Hedlund has posted gave me the error      Unable to add window     token null is not valid   If you are getting the same error use the below code  It works    runOnUiThread new Runnable          Override     public void run              if   isFinishing                 new AlertDialog Builder YourActivity this                 setTitle  Your Alert                  setMessage  Your Message                  setCancelable false                 setPositiveButton  ok   new OnClickListener                        Override                   public void onClick DialogInterface dialog  int which                             Whatever                                         show

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You can create Activity and extends AppCompatActivity  Then in the Manifest put next style    lt activity android name   YourCustomDialog              android theme  Theme AppCompat Light Dialog  gt   lt  activity gt    Inflate it by Buttons and TextViews  Then use this like a dialog   For example  in the linearLayout I fill next parameters   android layout width  300dp  android layout height  wrap content

[android] How do I display an alert dialog on Android?

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