[Android] App crashs when activity extends FragmentActivity

[BharathMG]

Steps to reproduce

1. Extend Activity with FragmentActivity and use MapView in one of the Acitivities in MapboxSDKTestApp.

Expected behavior

Activity should not crash.

Actual behavior

Crashes currently because of srcCompat not giving drawable when accessing through getDrawable in https://github.com/mapbox/mapbox-gl-native/blob/master/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/utils/ColorUtils.java#L114

10-29 14:19:44.546 8982-8982/com.mapbox.mapboxsdk.testapp E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.mapbox.mapboxsdk.testapp, PID: 8982
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.graphics.drawable.Drawable.setTintList(android.content.res.ColorStateList)' on a null object reference
        at android.support.v4.graphics.drawable.DrawableCompat.setTintList(DrawableCompat.java:149)
        at com.mapbox.mapboxsdk.utils.ColorUtils.setTintList(ColorUtils.java:114)
        at com.mapbox.mapboxsdk.maps.UiSettings.setAttributionTintColor(UiSettings.java:605)
        at com.mapbox.mapboxsdk.maps.UiSettings.initialiseAttribution(UiSettings.java:227)
        at com.mapbox.mapboxsdk.maps.UiSettings.initialise(UiSettings.java:86)
        at com.mapbox.mapboxsdk.maps.MapboxMap.initialise(MapboxMap.java:96)
        at com.mapbox.mapboxsdk.maps.MapView.initialiseMap(MapView.java:216)
        at com.mapbox.mapboxsdk.maps.MapView.access$900(MapView.java:75)
        at com.mapbox.mapboxsdk.maps.MapView$6.run(MapView.java:345)
        at android.os.Handler.handleCallback(Handler.java:815)
        at android.os.Handler.dispatchMessage(Handler.java:104)
        at android.os.Looper.loop(Looper.java:207)
        at android.app.ActivityThread.main(ActivityThread.java:5737)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)

Replacing FragmentActivity with AppCompatActivity works. But it was not evident when debugging it.

Configuration

Mapbox SDK versions: >= v6.6.1

[philemonmerlet]

Just stumbled on it too. Fixed by replacing ImageViews by v7 AppCompatImageView in mapbox_mapview_internal.xml. I'll add the pull request when I have 2 seconds.

[tobrun]

@BharathMG thanks for the insights and @philemonmerlet for providing a patch!
Finalizing this issue in #13222.