ImagePickerActivity throws NullPointerException

[fotock]

My code: Intent intent = new Intent(view.getContext(), ImagePickerActivity.class); intent.putExtra(ImagePickerActivity.EXTRA_SELECTION_LIMIT, 9); startActivityForResult(intent, INTENT_REQUEST_GET_IMAGES);

exception thrown: Caused by: java.lang.NullPointerException at nl.changer.polypicker.ImagePickerActivity.setupActionBar(ImagePickerActivity.java:104) at nl.changer.polypicker.ImagePickerActivity.onCreate(ImagePickerActivity.java:83) at android.app.Activity.performCreate(Activity.java:5020) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)             at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2211)             at android.app.ActivityThread.access$600(ActivityThread.java:149)             at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1300)             at android.os.Handler.dispatchMessage(Handler.java:99)

Any help? Thanks.

[jaydeepw]

The crash is in your setupActionBar() method. Probably your theme has no ActionBar but you are trying to get a handle to it. Possible?

[anuragdadheech]

I was having the same issue. Turned out my application base theme was AppCompat, which was causing issues. Changed the theme for particular activity and it worked. Hope it helps someone else.

[azam3d]

This is step by step guide to change particular activity theme. In styles.xml, add this lines

<style name="HoloTheme" parent="@android:style/Theme.Holo.Light">

</style>

In AndroidManifest.xml change these lines to these

<activity android:name="nl.changer.polypicker.ImagePickerActivity"
          android:theme="@style/HoloTheme"/>

No more crash after that.

[HwanIk]

@azam3d Thanks!!!!!!!!!!! you save me!! :D

[fotock]

@anuragdadheech, @azam3d are both correct. In my case:

<activity android:name="nl.changer.polypicker.ImagePickerActivity"
          android:theme="@style/AppTheme"/>

[anand171]

Hi Jaydeepw,

I am using your library, and that is giving an error regarding classpath. my app classpath is ... classpath 'com.android.tools.build:gradle:3.0.1'

error is ..... Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve com.github.jaydeepw:poly-picker:1.0.23.

Could not resolve com.github.jaydeepw:poly-picker:1.0.23. Required by: project :app

Could not resolve com.github.jaydeepw:poly-picker:1.0.23. Could not get resource 'https://repo.commonsware.com.s3.amazonaws.com/com/github/jaydeepw/poly-picker/1.0.23/poly-picker-1.0.23.pom'. Could not GET 'https://repo.commonsware.com.s3.amazonaws.com/com/github/jaydeepw/poly-picker/1.0.23/poly-picker-1.0.23.pom'. Host name 'repo.commonsware.com.s3.amazonaws.com' does not match the certificate subject provided by the peer (CN=*.s3.amazonaws.com, O=Amazon.com Inc., L=Seattle, ST=Washington, C=US)

please help me as soon as possible.