How To Use Both AppCompatActivity and Activity Classes in OncreateMethod
49
What is a NullPointerException, and how do I fix it?
20020
NullPointerException accessing views in onCreate()
9714
Why does `instanceof` error rather than return `false` when used for 2 incompatible classes?
14096
How do I get the SharedPreferences from a PreferenceActivity in Android?
153909
Confirmation that (inner) classes are still not fully supported in @AuraEnabled methods?
84195
getApplication() vs. getApplicationContext()
88384
NoSuchMethodError error for getActionBar() (API-8)
129390
How to send an object from one Android Activity to another using Intents?
126809
PreferenceActivity Android 4.0 and earlier
77648
How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?
110636
Using Intent in an Android application to show another activity
73120
Nullpointerexception when trying to send data from activity to class
85964
Android: ClassNotFoundException when passing serializable object to Activity
72275
Adding Admob code to Android giving error: You must have AdActivity declared in AndroidManifest.xml
28797
"Unknown class  in Interface Builder file" error at runtime
20366
Actionbar not shown with AppCompat
73767
Need to display the result in new activity