android-fragments

问题 I am trying to implement a twitter login button in a fragment in Android using Fabric. I got it to work in an activity, but cannot get it working in a fragment. Here is my TwitterFragment class (extends fragment) @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { TwitterAuthConfig authConfig = new TwitterAuthConfig(mTWITTER_KEY, mTWITTER_SECRET); Fabric.with(super.getActivity(), new Twitter(authConfig)); View view = inflater.inflate(R

问题 I am trying to implement a twitter login button in a fragment in Android using Fabric. I got it to work in an activity, but cannot get it working in a fragment. Here is my TwitterFragment class (extends fragment) @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { TwitterAuthConfig authConfig = new TwitterAuthConfig(mTWITTER_KEY, mTWITTER_SECRET); Fabric.with(super.getActivity(), new Twitter(authConfig)); View view = inflater.inflate(R

问题 I have used the tabbed activity template provided by android studio but i can't happen to find the id for the different fragments used. the template had only one .xml and .java for all three fragments. I made a few changes and made three separate .xml and .java for the three fragments. But I can't figure out how to set the id for the different fragments either from .xml or in .java and without the id I can't perform inter fragment communication. 回答1: Now for retrieving a fragment Fragment f =

问题 I have used the tabbed activity template provided by android studio but i can't happen to find the id for the different fragments used. the template had only one .xml and .java for all three fragments. I made a few changes and made three separate .xml and .java for the three fragments. But I can't figure out how to set the id for the different fragments either from .xml or in .java and without the id I can't perform inter fragment communication. 回答1: Now for retrieving a fragment Fragment f =

问题 This question already has answers here : How to update RecyclerView Adapter Data? (13 answers) Closed yesterday . I have a RecyclerView horizontal image slider at the bottom of a fragment. The top of the fragment shows some details. Once the user clicks on the images at the bottom, the idea is to remove that image from the image slider and display its information in the fragment. Now the information shows up but the image does not gets removed from the RecyclerView . Here is what I have coded

问题 This question already has answers here : How to update RecyclerView Adapter Data? (13 answers) Closed yesterday . I have a RecyclerView horizontal image slider at the bottom of a fragment. The top of the fragment shows some details. Once the user clicks on the images at the bottom, the idea is to remove that image from the image slider and display its information in the fragment. Now the information shows up but the image does not gets removed from the RecyclerView . Here is what I have coded

问题 This question already has answers here : How to update RecyclerView Adapter Data? (13 answers) Closed yesterday . I have a RecyclerView horizontal image slider at the bottom of a fragment. The top of the fragment shows some details. Once the user clicks on the images at the bottom, the idea is to remove that image from the image slider and display its information in the fragment. Now the information shows up but the image does not gets removed from the RecyclerView . Here is what I have coded

问题 I have a View pager inside of Fragment Activity and the View pager Contain two fragment at the start of the activity i have a rest request and when i get the response i want to update the Views inside of each fragment and in each one i'm using getActivity but my problem is the i always get null pointer exception on getActivity just on tablet Devices but i didn't get this issue on mobile phones that's my pager adapter public class Guide_ViewPager_adapter extends FragmentStatePagerAdapter {

问题 I'm trying to implement a basic settings activity in an Android app and either get a blank white screen or a crash. The documentation and samples I've seen aren't helping because they're either old or inconsistent. For example, depending on where you look, the settings activity should either extend Activity, PreferenceActivity, or AppCompatPreferenceActivity (part of the File>New>Activity>Settings Activity). developer.android.com says you should implement the following: public class

问题 I'm doing some background work and showing a DialogFragment while I do that. Once my work is done and the relevant callback is invoked, I dismiss the dialog. When I do, I get a crash caused by a NPE in the android source, here: void dismissInternal(boolean allowStateLoss) { if (mDialog != null) { mDialog.dismiss(); mDialog = null; } mRemoved = true; if (mBackStackId >= 0) { getFragmentManager().popBackStack(mBackStackId, FragmentManager.POP_BACK_STACK_INCLUSIVE); mBackStackId = -1; } else {