null pointer exception

[wizardkhinz18]

xml code

<ImageView
    android:id="@+id/imageView"
    android:layout_width="200dp"
    android:layout_height="200dp"
    android:layout_centerHorizontal="true"
    android:elevation="4dp"
    android:src="@mipmap/ic_image_placeholder"
    tools:ignore="ContentDescription"/>

<com.kevalpatel.passcodeview.PinView
    android:id="@+id/pinView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@id/imageView"
    app:dividerColor="@color/colorPrimaryDark"
    app:fingerprintDefaultText="Scan your finger to unlock application"
    app:fingerprintEnable="true"
    app:fingerprintTextColor="@color/colorAccent"
    app:fingerprintTextSize="16dp"
    app:giveTactileFeedback="true"
    app:titleTextColor="@android:color/white"/>

---

java code

public class AuthPINFragment extends MainFragment{

private final String TAG = AuthPINFragment.class.getSimpleName();

@BindView(R.id.pinView)PinView pinView;

@Override
protected int getLayoutResource() {
    return R.layout.auth_pin_fragment;
}

@Override
protected void initWidget(View view) {
    ButterKnife.bind(this, view);
}

@Override
protected void initListener() {

}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
    return super.onCreateView(inflater, container, savedInstanceState);
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    final int[] correctPin = new int[]{1, 2, 3,4};
    pinView.setPinAuthenticator(new PasscodeViewPinAuthenticator(correctPin));
    pinView.setKey(new RoundKey.Builder(pinView)
            .setKeyPadding(10f)
            .setKeyStrokeColorResource(R.color.colorAccent)
            .setKeyStrokeWidth(3f)
            .setKeyTextColorResource(R.color.colorAccent)
            .setKeyTextSize(18f));
    pinView.setIndicator(new CircleIndicator.Builder(pinView)
            .setIndicatorRadius(10f)
            .setIndicatorFilledColorResource(R.color.colorAccent)
            .setIndicatorStrokeColorResource(R.color.colorAccent)
            .setIndicatorStrokeWidth(3f));
    pinView.setPinLength(PinView.DYNAMIC_PIN_LENGTH);
    pinView.setTitle("Enter the PIN");
    pinView.setAuthenticationListener(new AuthenticationListener() {
        @Override
        public void onAuthenticationSuccessful() {
            CommonUtil.showDialog(getActivity(), "Success");
        }

        @Override
        public void onAuthenticationFailed() {
            CommonUtil.showDialog(getActivity(), "Failed");
        }
    });
}

}

---

error log

09-03 14:07:10.359 4539-4539/ph.com.sdsolutions.networkmonks E/AndroidRuntime: FATAL EXCEPTION: main
Process: ph.com.sdsolutions.networkmonks, PID: 4539
java.lang.NullPointerException: Attempt to read from null array
at com.kevalpatel.passcodeview.internal.BoxKeypad.measureView(BoxKeypad.java:181)
at com.kevalpatel.passcodeview.PinView.measureView(PinView.java:182)
at com.kevalpatel.passcodeview.internal.BasePasscodeView.onMeasure(BasePasscodeView.java:212)
at android.view.View.measure(View.java:18855)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:716)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:462)
at android.view.View.measure(View.java:18855)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:716)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:462)
at android.view.View.measure(View.java:18855)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6107)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:141)
at android.view.View.measure(View.java:18855)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6107)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18855)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6107)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18855)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6107)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18855)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6107)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2780)
at android.view.View.measure(View.java:18855)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2139)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1236)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1472)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1127)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6156)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:892)
at android.view.Choreographer.doCallbacks(Choreographer.java:704)
at android.view.Choreographer.doFrame(Choreographer.java:640)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:878)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5628)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:853)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:737)

[rt1shnik]

Answered here