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I'm a bit new with the AsyncTask and ProgressDialog and i'm getting a null pointer exceptio… Read more Progress Dialog And Asynctask Error

I have a Fragment activity that contains 6 fragments. Every fragment is instance of the same class … Read more Android: Onitemclicklistener Event Not Fired When Page Is Swiped (fragmentactivity And Listfragment)

I'm trying to execute some OpenGL commands for my GLSurfaceView from my main activity. As the O… Read more Glsurfaceview.queueevent Does Not Execute In The Gl Thread

I can't for the life of me figure out why my ExpandableListView doesn't expand... I have us… Read more Android Expandablelistview Does Not Expand Or Receive Click Events

I searched a lot about backup/restore Sqlite database i found code to copy sqlite file to SD card t… Read more How To Restore Sqlite Database After Backup Android

I have simple recycler view here, what I want is: when list is short: stick the button below the re… Read more Androidx Recycler View Match Constraint (0dp) With Wrap Content Behaviour

This seems to be a strange issue. I am using AlarmManager to set a alarm with custom audio track. T… Read more No Sound When The Activity Starts From Lock Screen

I am trying out Firebase Realtime Database. I have a created a node users, In that I have created a… Read more Will Firebase Realtime Database Sync When The Device Comes Online, But The Application Is Not Opened?

I have a 10x10 array in Java, some of the items in array which are not used, and I need to traverse… Read more Array Access Optimization

Is there a way to reset the default gradle and plugin, without resetting all my settings, so I don… Read more Reset Default Gradle And Plugin For Android Studio To Be Up To Date When Creating New Projects?

Case: I am using Async Task for showing some list. When I click on any item of listview another act… Read more Disabling Re-execution Of Async Task On Finishing Of Foreground Activity

Hi im trying to use a searchable activity in my application but when the search button is pressed n… Read more Android Searchable Not Opening

I am trying to update ADT Plugin from version 22.3.0 to 23.0.3. But I'm getting this message ev… Read more Cannot Update My Adt Plugin To V23.0.3

I'm doing my BlogApp. It gets all data from the Internet. I added three TextViews, but I have p… Read more How To Get Images From Internet And Past It In A Listview?

i'm trying create notification jelly bean (api 16) and have get issue with my notification, thi… Read more Notification Android Does Not Close After Click

I am trying to integrate Admob to android, i end up with no success. The Document says Need to Prov… Read more Integrate Admob To Android Problem

I am developing an application for Android, and part of the application has to takes pictures and s… Read more Android/java: Saving A Byte Array To A File (.jpeg)

I'm reading Beginning Android 4 Development and in chapter 5 it talks about Gallery and ImageVi… Read more Can Someone Explain Me Declare-styleable Xml Tag In This Example And The Theory Behind Its Use?

I am Trying to implement like feature in the app, here is the snippet from the Viewholder in the re… Read more Android.content.res.resources$notfoundexception: Resource Id #0x7f07007e

I have added coordinatorlayout+viewpager+TabLayout and have added three tabs with viewpager but scr… Read more Coordinatorlayout Not Scrolling With Swiperefreshlayout