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
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questions
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How to use ThreeTenABP in Android Project
I'm using Android Studio 2.1.2 and my Java setup is the following:
>java -version
> openjdk version "1.8.0_91"
> OpenJDK Runtime Environment (build 1.8.0_91-8u91-b14-3ubuntu1~15.10....
- 6,675
885
votes
23
answers
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Unfortunately MyApp has stopped. How can I solve this?
I am developing an application, and everytime I run it, I get the message:
Unfortunately, MyApp has stopped.
What can I do to solve this?
About this question - obviously inspired by What is a ...
- 100k
2735
votes
65
answers
1.5m
views
How can I fix 'android.os.NetworkOnMainThreadException'?
I got an error while running my Android project for RssReader.
Code:
URL url = new URL(urlToRssFeed);
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory....
- 29.7k
1537
votes
53
answers
1.3m
views
How do I pass data between Activities in Android application?
I have a scenario where, after logging in through a login page, there will be a sign-out button on each activity.
On clicking sign-out, I will be passing the session id of the signed in user to sign-...
- 77.8k
320
votes
16
answers
138k
views
When does SQLiteOpenHelper onCreate() / onUpgrade() run?
I have created my tables in my SQLiteOpenHelper onCreate() but receive
SQLiteException: no such table
or
SQLiteException: no such column
errors. Why?
NOTE:
(This is the amalgamated summary ...
185
votes
3
answers
582k
views
1389
votes
44
answers
652k
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Strange OutOfMemory issue while loading an image to a Bitmap object
I have a ListView with a couple of image buttons on each row. When the user clicks the list row, it launches a new activity. I have had to build my own tabs because of an issue with the camera layout. ...
2084
votes
41
answers
579k
views
How to lazy load images in ListView in Android
I am using a ListView to display some images and captions associated with those images. I am getting the images from the Internet. Is there a way to lazy load images so while the text displays, the UI ...
- 70.9k
2871
votes
35
answers
910k
views
How can I save an activity state using the save instance state?
I've been working on the Android SDK platform, and it is a little unclear how to save an application's state. So given this minor re-tooling of the 'Hello, Android' example:
package com.android.hello;
...
- 45.5k
59
votes
6
answers
47k
views
How to return DataSnapshot value as a result of a method?
I don't have much experience with Java. I'm not sure if this question is stupid, but I need to get a user name from Firebase realtime database and return this name as a result of this method. So, I ...
- 751
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votes
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answers
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How to use SharedPreferences in Android to store, fetch and edit values [closed]
I want to store a time value and need to retrieve and edit it. How can I use SharedPreferences to do this?
190
votes
12
answers
124k
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Android permission doesn't work even if I have declared it
I'm trying to write code to send an SMS from an Android app, but when I try to send the SMS it sends me back the error:
09-17 18:37:29.974 12847-12847/**.**.****E/AndroidRuntime﹕ FATAL EXCEPTION: ...
- 2,056
1107
votes
14
answers
923k
views
How to manage startActivityForResult on Android
In my activity, I'm calling a second activity from the main activity by startActivityForResult. In my second activity, there are some methods that finish this activity (maybe without a result), ...
- 53.2k
701
votes
25
answers
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Sending Email in Android using JavaMail API without using the default/built-in app
I am trying to create a mail sending application in Android.
If I use:
Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
This will launch the built-in Android application; I'm ...
- 40.4k
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votes
54
answers
1.3m
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Is there a unique Android device ID?
Do Android devices have a unique ID, and if so, what is a simple way to access it using Java?
- 31.5k