Here is the relevent code:
...
Resources res;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.variable);
res = getResources();
...
}
protected void setup() {
String text = res.getStringArray(R.array.categories)[4];
}
What could be causing this? Logcat:
07-01 13:37:01.988: E/AndroidRuntime(13905): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.centauri.equations/com.centauri.equations.activity.physics.WorkActivity}: java.lang.NullPointerException
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.app.ActivityThread.access$600(ActivityThread.java:123)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.os.Handler.dispatchMessage(Handler.java:99)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.os.Looper.loop(Looper.java:137)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.app.ActivityThread.main(ActivityThread.java:4424)
07-01 13:37:01.988: E/AndroidRuntime(13905): at java.lang.reflect.Method.invokeNative(Native Method)
07-01 13:37:01.988: E/AndroidRuntime(13905): at java.lang.reflect.Method.invoke(Method.java:511)
07-01 13:37:01.988: E/AndroidRuntime(13905): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
07-01 13:37:01.988: E/AndroidRuntime(13905): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
07-01 13:37:01.988: E/AndroidRuntime(13905): at dalvik.system.NativeStart.main(Native Method)
07-01 13:37:01.988: E/AndroidRuntime(13905): Caused by: java.lang.NullPointerException
07-01 13:37:01.988: E/AndroidRuntime(13905): at com.centauri.equations.activity.physics.WorkActivity.setup(WorkActivity.java:119)
07-01 13:37:01.988: E/AndroidRuntime(13905): at com.centauri.equations.activity.Categories.onCreate(Categories.java:95)
07-01 13:37:01.988: E/AndroidRuntime(13905): at com.centauri.equations.activity.physics.WorkActivity.onCreate(WorkActivity.java:34)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.app.Activity.performCreate(Activity.java:4465)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
07-01 13:37:01.988: E/AndroidRuntime(13905): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
07-01 13:37:01.988: E/AndroidRuntime(13905): ... 11 more
it seems that res is null for some reason
From what you have posted I'll wager the you are calling setup() for you initialize res... Change your code around to this:
res = getResources();
setup();
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