Ho un CustomDialogFragment come questofinestre di dialogo personalizzate Frammento si blocca quando metodo setter viene chiamato
public class CustomDialogFragment extends DialogFragment {
private LinearLayout containerView;
public static CustomDialogFragment newInstance() {
CustomDialogFragment fragment = new EDActionSheet();
return fragment;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Dialog dialog = new Dialog(getActivity());
dialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
//MARK - containerView
LinearLayout.LayoutParams containerViewLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
containerView = new LinearLayout(dialog.getContext());
containerView.setLayoutParams(containerViewLayoutParams);
containerView.setOrientation(LinearLayout.VERTICAL);
dialog.setContentView(containerView);
DisplayMetrics displaymetrics = new DisplayMetrics();
dialog.getWindow().getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
WindowManager.LayoutParams params = dialog.getWindow().getAttributes();
params.width = (int) (displaymetrics.widthPixels * 0.95);
params.gravity = Gravity.BOTTOM;
dialog.getWindow().setAttributes(params);
return dialog;
}
public void setColor(int color) {
containerView.setBackgroundColor(color);
}
E da fuori, dove io chiamo il DialogFragment.
CustomDialogFragment fragment = CustomDialogFragment.newInstance();
fragment.setColor(ContextCompat.getColor(this, Color.BLUE));
fragment.show(getFragmentManager(), "Dialog");
ho avuto l'incidente dicendo
testapp.android.testapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: id.testapp.android.testapp, PID: 5749
java.lang.NullPointerException: Attempt to invoke virtual method 'void
id.testapp.android.testapp.controls.CustomDialogFragment.setColor(int)'
on a null object reference
at
id.testapp.android.testapp.controls.CustomDialogFragment.setColor(CustomDialogFragment.java:234)
Qualche idea?
Grazie per l'aiuto – JayVDiyk