Android app Twitter Login failed(not show webView login screen) if twitter app not installed

Question

Edit 1 I know this question is already asked but no one is answered stacktrace also not added into it so I asked again.

If I install twitter app ant try to login then app will successfully login with twitter but if I un-install twitter app from mobile and then try to login into app then I received below error and failed to get login with twitter

Failed to get request token
I didn't seen any webView. after click on login with twitter button.

below is stack trace which I received

E/Twitter: Invalid json: Callback URL not approved for this client application. Approved callback URLs can be adjusted in your application settings com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $ at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:224) at com.twitter.sdk.android.core.models.SafeListAdapter$1.read(SafeListAdapter.java:45) at com.twitter.sdk.android.core.models.SafeMapAdapter$1.read(SafeMapAdapter.java:45) at com.google.gson.Gson.fromJson(Gson.java:887) at com.google.gson.Gson.fromJson(Gson.java:852) at com.google.gson.Gson.fromJson(Gson.java:801) at com.google.gson.Gson.fromJson(Gson.java:773) at com.twitter.sdk.android.core.TwitterApiException.parseApiError(TwitterApiException.java:110) at com.twitter.sdk.android.core.TwitterApiException.readApiError(TwitterApiException.java:95) at com.twitter.sdk.android.core.TwitterApiException.(TwitterApiException.java:43) at com.twitter.sdk.android.core.Callback.onResponse(Callback.java:42) at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:70) at android.os.Handler.handleCallback(Handler.java:789) at android.os.Handler.dispatchMessage(Handler.java:98) at android.os.Looper.loop(Looper.java:172) at android.app.ActivityThread.main(ActivityThread.java:6637) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $ at com.google.gson.stream.JsonReader.beginObject(JsonReader.java:385) at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:213) at com.twitter.sdk.android.core.models.SafeListAdapter$1.read(SafeListAdapter.java:45)  at com.twitter.sdk.android.core.models.SafeMapAdapter$1.read(SafeMapAdapter.java:45)  at com.google.gson.Gson.fromJson(Gson.java:887)  at com.google.gson.Gson.fromJson(Gson.java:852)  at com.google.gson.Gson.fromJson(Gson.java:801)  at com.google.gson.Gson.fromJson(Gson.java:773)  at com.twitter.sdk.android.core.TwitterApiException.parseApiError(TwitterApiException.java:110)  at com.twitter.sdk.android.core.TwitterApiException.readApiError(TwitterApiException.java:95)  at com.twitter.sdk.android.core.TwitterApiException.(TwitterApiException.java:43)  at com.twitter.sdk.android.core.Callback.onResponse(Callback.java:42)  at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:70)  at android.os.Handler.handleCallback(Handler.java:789)  at android.os.Handler.dispatchMessage(Handler.java:98)  at android.os.Looper.loop(Looper.java:172)  at android.app.ActivityThread.main(ActivityThread.java:6637)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 

E/Twitter: Failed to get request token com.twitter.sdk.android.core.TwitterApiException: HTTP request failed, Status: 403 at com.twitter.sdk.android.core.Callback.onResponse(Callback.java:42) at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:70) at android.os.Handler.handleCallback(Handler.java:789) at android.os.Handler.dispatchMessage(Handler.java:98) at android.os.Looper.loop(Looper.java:172) at android.app.ActivityThread.main(ActivityThread.java:6637) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

E/Twitter: Authorization completed with an error com.twitter.sdk.android.core.TwitterAuthException: Failed to get request token at com.twitter.sdk.android.core.identity.OAuthController$1.failure(OAuthController.java:94) at com.twitter.sdk.android.core.internal.oauth.OAuth1aService$1.failure(OAuth1aService.java:191) at com.twitter.sdk.android.core.Callback.onResponse(Callback.java:42) at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:70) at android.os.Handler.handleCallback(Handler.java:789) at android.os.Handler.dispatchMessage(Handler.java:98) at android.os.Looper.loop(Looper.java:172) at android.app.ActivityThread.main(ActivityThread.java:6637) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

Answer 1

Finally I got answer here.

We need to set twittersdk:// inside callback URL as described in link like below.

Step 1: go to your twitter app setting https://apps.twitter.com/ >> Tab settings >> Fill this text "twittersdk://" to your callback URL field( I found it in lib class)
Step 2: Save your update
Step 3: check out your app again.

It worked just by setting twittersdk:// as one callback URL, without appending anything.