EarthquakeApp | Earthquake Signal Precursors , ESP , detection and forecast
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kandi X-RAY | EarthquakeApp Summary
Magnetic Field Data Anomaly Detection Analysis Sandbox.
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Trending Discussions on EarthquakeApp
QUESTION
Here's my problem. I have RootMapFragment
in viewPager
which is a container where I will have in future 2 different maps. RootMapFragment
contain simple FrameLayout
and with FragmentTransaction
I want to replace frame_layout
with marker_map in onCreateView
. At first creation of marker_map everything is ok and the map is filled with markers which are got from eventBus
. When in viewPager
I have 3 tabs. Maps are in the first tab. When I get to second tab and back to the first tab, my app remembers earlier state of the map with markers, but when I go to the third tab, and back to first, app is creating new Instance of the map and it's empty. Is there a solution, where my app will remember the first state instead of creating new Instance of the map?
RootMapFragment.xml
...ANSWER
Answered 2017-Apr-16 at 19:22Try using setOffscreenPageLimit
method of viewpager
From documentation:
Set the number of pages that should be retained to either side of the current page in the view hierarchy in an idle state. Pages beyond this limit will be recreated from the adapter when needed.
code:
QUESTION
I have NullPointerException during downloading data from my API using retrofit2. I extricated inner callback in my DataService
class and I call it in fragment ListFragment
to download the data. ListFragment
has implemented RecyclerView
and will be displaying that data. For now, I want to display only two textViews. Layout for them has name single_data_layout
. List features
is my DataResponse
. Anyone any ideas what am I doing wrong?
Maybe you know some examples with existing callbacks from retrofits equeue()? There aren't many online.
You can find the whole project on GitHub
Stacktrace:
...ANSWER
Answered 2017-Mar-08 at 11:16You haven't initialized DataService
in which apiClient
variable is initialized in its constructor. so Direct call will not invoke its constructor.
Use this.
QUESTION
I've created an app where first of three fragment tabs contains a map. Only first tab is now implemented. You can find whole app at repository: https://github.com/lwach87/EarthquakeApp
The app is building normally and works when I'm shifting tabs from 1 to 3. The crash appears when I'm trying back to previous tabs from tab 3. I get a runtime exception:
...ANSWER
Answered 2017-Mar-03 at 19:59This is most likely due to using a SupportMapFragment nested inside a Fragment that is used in a ViewPager.
The easiest solution is to just have the Fragment that is used in the ViewPager extend SupportMapFragment directly. This eliminates the use of nested Fragments. Also note that inflating an xml layout is not needed with this solution.
Replace your MapFragment with this code:
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