Missing the android.os.handler object from Android Studio

Question

I'm attempting to create a Handler thread in my application however Android Studio marks my text as red and will only attempt to import the java.util version of a handler and not the Android SDK version. When attempting to import manually I'm able to find the HandlerThread just fine but the normal handler import seems to be missing.

Any ideas why?

those are part of the same jar. Probably you have misspelled the import — Blackbelt, Jun 15 '13 at 07:29
Android Studio will auto complete the import for you. So if I was to type android.os. it would then complete the import for me. In the list it does not show "Handler" as an available object. — b1kjsh, Jun 15 '13 at 07:32

score 32 · Accepted Answer · edited Jan 15 '19 at 22:09

32

I had to add import android.os.*; before I could get the android.os.Handler object working in my class.

edited Jan 15 '19 at 22:09

Community

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answered Jun 17 '13 at 00:29

b1kjsh

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score 5 · Answer 2 · answered May 27 '17 at 03:15

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Just import android.os.Handler, no need to import everything in android.os

answered May 27 '17 at 03:15

Peizhong Ju

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score 2 · Answer 3 · answered Jun 08 '18 at 05:42

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open : Settings -> Editor -> General -> Auto Import。

Exclude from Import

answered Jun 08 '18 at 05:42

imyyq.star

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score 1 · Answer 4 · edited Jul 01 '17 at 15:23

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import android.os.*;

solved the problem.

edited Jul 01 '17 at 15:23

Rob

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answered Jul 01 '17 at 15:16

Jupitor Apps

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score 0 · Answer 5 · answered Jun 15 '13 at 10:18

Make sure that your Android SDK is added properly to Android studio. To do this go to File -> Project Structure and check the SDKs item under Platform Settings. Also make sure that you have selected a Project SDK under the Project item.

See the IntellJ documentation for more information.

score -1 · Answer 6 · answered Jan 20 '18 at 05:26

It works because Android Studio and InteliJ usually import import android.os.Handler; instead of import android.os.Handler;

When you import the android version of Handler make sure you remove the Java version because the Java version is always compiled first over the Android version.

Missing the android.os.handler object from Android Studio

6 Answers6