Android-activity tutorials, questions, and resources -

java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.pm.PackageManager

December 22nd, 2022

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Flutter not creating Java Classes only Kotlin Instead

December 14th, 2022

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Changing the TaskDescription bar color with Flutter

December 12th, 2022

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Get Current Activity Context in a non activity class

September 15th, 2022

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Android: How to draw free on top of anything (any activity)

October 12th, 2022

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Defining android activity as dialog with light theme

October 15th, 2022

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Android app start and end event

September 15th, 2022

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android - EditText height resize based on keyboard

September 16th, 2022

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Android Fragment getActivity() = null

September 14th, 2022

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Updating textview on activity once data in adapter class is changed

September 16th, 2022

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Sending Intent from BroadcastReceiver class to currently running activity

June 8th, 2022

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How to send large byte arrays between activities in Android?

September 15th, 2022

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How to open or launch a Fragment from another Activity?

September 15th, 2022

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Can I use greenrobot EventBus for Communication between Activity and Service?

September 16th, 2022

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Communicate from Activity to Fragment using Interface

September 15th, 2022

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How to change indicator of tablayout to top from bottom?

September 15th, 2022

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AppCompat Toolbar not Showing

June 4th, 2022

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How to extends ListActivity where AppCompatActivity in Android Activity

October 22nd, 2022

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Activity life cycle methods : onPostResume significance

October 31st, 2022

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Android checking whether the app is closed

September 16th, 2022

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How to center vertically the ConstraintLayout content in Android Studio?

August 29th, 2022

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Android: how to create splash screen with text

September 16th, 2022

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Android: manual screen orientation without restarting the activity?

June 4th, 2022

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How to stop Service from another activity in Android?

June 17th, 2022

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How to pass spinner data from one activity to another ?

June 9th, 2022

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Need android activity to wait until GPS location obtained

June 17th, 2022

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Hiding keyboard after calling new Activity that shows a ProgressDialog

June 4th, 2022

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Restart Activity with onResume method

September 15th, 2022

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How to move to another activity in a few seconds?

September 16th, 2022

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Creating a link to an Activity with a TextView

September 6th, 2022

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