Stack Overflow
Stack Overflow

Questions tagged [android]

Android is Google's mobile operating system, used for programming or developing digital devices (Smartphones, Tablets, Automobiles, TVs, Wear, Glass, IoT). For topics related to Android, use Android-specific tags such as android-intent, android-activity, android-adapter, etc. For questions other than development or programming but related to the Android framework, use this link: https://android.stackexchange.com.

Android is a mobile operating system developed by a consortium of developers known as the Open Handset Alliance, with the main contributor and commercial marketer being Google. It is based on a modified version of the Linux kernel and other open source software and is designed primarily for touchscreen mobile devices such as smartphones and tablets. In addition, Google has further developed Android TV for televisions, Android Auto for cars, and Wear OS for wrist watches, each with a specialized user interface. Variants of Android are also used on game consoles, digital cameras, PCs, and other electronics.

Tag Usage

When asking about your app force closing or crashing, you have to include an MCVE, which has to include a stacktrace. See also: How to Ask

When adding additional tags to questions, please use the Android-specific tags such as , , , and not individual tags like , or .

For non-developer Android questions, see Android Enthusiasts Stack Exchange.

Manufacturer-Monitored Tags

These tags are used for developer assistance by Android device manufacturers for their specific devices:

ISV-Monitored Tags

These tags are meant for libraries, services, etc. for Android that are monitored by their respective developers:

( (now deprecated))

Resources

Android Versions

Official API Documentation

Applications

Source Code and Building

Developers

Playlist of videos for Google I/O.

  • Android Tools Project Site
    On this site, you will find information about the Developer Tools for Android (Dalvik Debug Monitor Server (DDMS), hierarchy viewer, lint) and various tips & how-to documents.

In addition, there are other Android developer support sites, operating in other languages.

For non-developer questions, see the Android Enthusiasts Stack Exchange site.

Android Programming Books

Android Loggers

  • logger - Simple, pretty and powerful logger for android
  • timber - A logger with a small, extensible API that provides utility on top of Android's normal Log class.
  • LoggingInterceptor - An OkHttp interceptor which pretty logs request and response data.
  • Bugfender - Upload your logs and check them online, specially made for mobile
  • EzyLogger - Simple Lightweight logger
  • Logback Android - Logback port to Android which provides a highly configurable logging framework for Android apps.

Chat Rooms

Chat about Android with other Stack Overflow users:

Stack Exchange

IRC:

Development IDEs

Tutorials & Examples

Online Courses

Online Specialization Verified Courses

Sites that list Android libraries

Open-sourced Android apps

Samples

Podcasts for Android

Weekly

Frequently Asked Questions

1409497 questions
1058
votes
27 answers

Place cursor at the end of text in EditText

I am changing the value of an EditText on keyListener. But when I change the text the cursor is moving to the beginning of the EditText. I need the cursor to be at the end of the text. How to move the cursor to the end of the text in a EditText.
Manu
  • 10,589
  • 3
  • 15
  • 3
1056
votes
23 answers

How to create RecyclerView with multiple view types

From Create dynamic lists with RecyclerView: When we create a RecyclerView.Adapter we have to specify ViewHolder that will bind with the adapter. public class MyAdapter extends RecyclerView.Adapter { private String[]…
Pongpat
  • 13,248
  • 9
  • 38
  • 51
1053
votes
23 answers

How do I rotate the Android emulator display?

How can I rotate the Android emulator display to see it in landscape mode?
mahdi
  • 16,257
  • 15
  • 52
  • 73
1051
votes
31 answers

How can I disable landscape mode in Android?

How can I disable landscape mode for some of the views in my Android app?
lostInTransit
  • 70,519
  • 61
  • 198
  • 274
1050
votes
34 answers

How to check if a service is running on Android?

How do I check if a background service is running? I want an Android activity that toggles the state of the service -- it lets me turn it on if it is off and off if it is on.
Bee
  • 14,277
  • 6
  • 35
  • 49
1044
votes
31 answers

Why doesn't RecyclerView have onItemClickListener()?

I was exploring RecyclerView and I was surprised to see that RecyclerView does not have onItemClickListener(). I've two question. Main Question I want to know why Google removed onItemClickListener()? Is there a performance issue or something…
T_V
  • 17,440
  • 6
  • 36
  • 48
1036
votes
44 answers

Can't start Eclipse - Java was started but returned exit code=13

I am trying to get my first taste of Android development using Eclipse. I ran into this problem when trying to run Eclipse, having installed version 4.2 only minutes ago. After first trying to start Eclipse without any parameters to specify the Java…
Ben E.
  • 10,550
  • 4
  • 15
  • 10
1026
votes
12 answers

What's "tools:context" in Android layout files?

Starting with a recent new version of ADT, I've noticed this new attribute on the layout XML files, for example:
android developer
  • 114,585
  • 152
  • 739
  • 1,270
1014
votes
24 answers

How do I create a transparent Activity on Android?

I want to create a transparent Activity on top of another activity. How can I achieve this?
UMAR-MOBITSOLUTIONS
  • 77,236
  • 95
  • 209
  • 278
1000
votes
15 answers

Ship an application with a database

If your application requires a database and it comes with built in data, what is the best way to ship that application? Should I: Precreate the SQLite database and include it in the .apk? Include the SQL commands with the application and have it…
Heikki Toivonen
  • 30,964
  • 11
  • 42
  • 44
986
votes
40 answers

onActivityResult is not being called in Fragment

The activity hosting this fragment has its onActivityResult called when the camera activity returns. My fragment starts an activity for a result with the intent sent for the camera to take a picture. The picture application loads fine, takes a…
Spidy
  • 39,723
  • 15
  • 65
  • 83
984
votes
35 answers

Auto Scale TextView Text to Fit within Bounds

I'm looking for an optimal way to resize wrapping text in a TextView so that it will fit within its getHeight and getWidth bounds. I'm not simply looking for a way to wrap the text- I want to make sure it both wraps and is small enough to fit…
Nathan Fig
  • 14,970
  • 9
  • 43
  • 57
956
votes
28 answers

How to set TextView textStyle such as bold, italic

How to set TextView style (bold or italic) within Java and without using the XML layout? In other words, I need to write android:textStyle with Java.
JustMe
  • 10,033
  • 5
  • 20
  • 12
950
votes
35 answers

Converting pixels to dp

I have created my application with the height and width given in pixels for a Pantech device whose resolution is 480x800. I need to convert height and width for a G1 device. I thought converting it into dp will solve the problem and provide the same…
Indhu
  • 9,806
  • 3
  • 18
  • 17
939
votes
38 answers

How to hide the title bar for an Activity in XML with existing custom theme

I want to hide the titlebar for some of my activities. The problem is that I applied a style to all my activities, therefore I can't simply set the theme to @android:style/Theme.NoTitleBar. Using the NoTitleBar theme as a parent for my style would…
Janusz
  • 187,060
  • 113
  • 301
  • 369
1 2 3
…
99 100