I have a class to create a fragment containing a map, but the following error is occurring:
Error inflating class fragment
My LayoutMap.axml file:
`<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
class="com.google.android.gms.maps.MapFragment" />`
My Activity_TabMap:
public override void OnActivityCreated(Bundle saveInstanceState)
{
base.OnActivityCreated (saveInstanceState);
_mapaFragment = SupportMapFragment.NewInstance ();
GoogleMap googleMap = ((SupportMapFragment)(FragmentManager.FindFragmentById (Resource.Id.map))).Map;
googleMap.MapType = GoogleMap.MapTypeNormal;
}
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
return inflater.Inflate (Resource.Layout.LayoutMap, container, false);
}
Related
Trying to add Fragment to my Activity, but it isn't showing up.
public class MainActivity extends AppCompatActivity {
private static final String TAG = MainActivity.class.getSimpleName();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WeatherFragment mainFragment = new WeatherFragment();
getFragmentManager()
.beginTransaction()
.add(R.id.main_weather_container, mainFragment)
.commit();
}
}
And there is my fragment:
public class WeatherFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
boolean isAttachedToParent = false;
View inflatedView = inflater.inflate(R.layout.main_weather_fragment, container, isAttachedToParent);
return inflatedView;
}
}
R.id.main_weather_container - FrameLayout in my MainActivity.
R.layout.main_weather_fragment - Fragment's layout
What am i doing wrong?
I've tried to use FragmentActivity + v4 support fragment and fragmentSupportManager, but it didn't make any difference.
MainActivity xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:id="#+id/main_weather_container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:padding="#dimen/padding_16_dp" />
<android.support.v7.widget.RecyclerView
android:id="#+id/words_recycler_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="3" />
</LinearLayout>
UPDATED: The problem wasn't in fragment transaction or whatever, i've used tools: namespace that's why fragment wasn't displayed. Sorry about that :(
try this way .in your activity call fragment
Fragment fragment = Video_fragment.newInstance();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.framecontainer, fragment).commit();
in fragment class.
public class Video_fragment extends Fragment{
View view;
public static Fragment newInstance() {
Video_fragment fragment = new Video_fragment();
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view= inflater.inflate(R.layout.video_frag, container, false);
return view;
}
}
Create a instance of Fragment in WeatherFragment:
public static WeatherFragment newInstance() {
Bundle args = new Bundle();
WeatherFragment weatherFragment = new WeatherFragment();
weatherFragment.setArguments(args);
return weatherFragment;
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_layout, container, false);
}
Inside your Activity in MainActivity :
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
WeatherFragment weatherFragment = WeatherFragment.newInstance();
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.flContainerId, weatherFragment)
.commit();
}
Your layout file will be:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/flContainerId"/>
public class WeatherFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View inflatedView = inflater.inflate(R.layout.main_weather_fragment, null, false);
return inflatedView;
}
}
As I can see, you are using AppCompatActivity but using getFragmentManager.
With AppCompatActivity you will need to use getSupportFragmentManager() rather than getFragmentManager()
public class MainActivity extends AppCompatActivity {
private static final String TAG = MainActivity.class.getSimpleName();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WeatherFragment mainFragment = new WeatherFragment();
getSupportFragmentManager()
.beginTransaction()
.add(R.id.main_weather_container, mainFragment)
.commit();
}
}
Your WeatherFragment should be extend android.support.v4.app.Fragment;
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="4"
android:orientation="vertical">
<FrameLayout
android:id="#+id/main_weather_container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:padding="#dimen/padding_16_dp" />
<android.support.v7.widget.RecyclerView
android:id="#+id/words_recycler_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="3" />
</LinearLayout>
Added WeightSum in the parent Layout.
Excuse me for any grammatical errors.
I followed a tutorial to view the google map in a fragment, but something has gone wrong.
this is my file .java that is hooked with the fragment:
public class MapFragment extends Fragment implements OnMapReadyCallback{
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_map, container, false);
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
MapFragment fragment = (MapFragment)getChildFragmentManager().findFragmentById(R.id.map);
fragment.getMapAsync(this); //Here i get the error
}
#Override
public void onMapReady(GoogleMap googleMap) {
}
}
This is the layout fragment:
<fragment
android:id="#+id/map"
android:layout_width="wrap_content"
android:layout_height="match_parent"
class="com.google.android.gms.maps.MapFragment"></fragment>
What did I do wrong?
Thank you!
You have to use SupportMapFragment rather than MapFragment
in XML
<fragment
android:id="#+id/map"
android:layout_width="wrap_content"
android:layout_height="match_parent"
class="com.google.android.gms.maps.SupportMapFragment"></fragment>
in Fragment
SupportMapFragment fragment = (SupportMapFragment)getChildFragmentManager().findFragmentById(R.id.map);
fragment.getMapAsync(this);
#EFragment(R.layout.main_map)
public class MapActivity extends Fragment {
private GoogleMap map;
static final LatLng DURG = new LatLng(21.1900,81.2800);
#Override
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.main_map, container, false);
map.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
return view;
}
}
Null pointer exception error occure at map.setMapType(GoogleMap.MAP_TYPE_SATELLITE).
R.layout.main_map:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<fragment
android:id="#+id/map_fragment_id"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
You need to add MapFragment Dynamically when you want to inflate a MapFragment inside a Fragment.
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.main_map, container, false);
SupportMapFragmentmf = SupportMapFragment.newInstance();
FragmentManager fm = getChildFragmentManager();
fm.beginTransaction().replace(R.id.mapView, mf, "normal_map").commit();
mf.getMapAsync(new OnMapReadyCallback() {
#Override
public void onMapReady(GoogleMap arg0) {
map = arg0;
map.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
}
});
return view;
}
where your main_map should be like below
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
I hope that helps. Please let me know if you have any doubts.
you should use
getMapAsync(OnMapReadyCallback callback)
then in the callback you can set the map to satellite view
I have an xml like this
activity_loginscreen.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="android.arin.LoginScreen"
tools:ignore="MergeRootFrame" />
and then gragment_loginscreen.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
style="#style/LoginView"
tools:context="android.arin.LoginScreen$PlaceholderFragment" >
<ImageView
android:id="#+id/bubbles"
android:contentDescription="#string/bubbles_cd"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"
android:alpha=".75"
android:src="#drawable/bubbles" />
</RelativeLayout>
In my java file I have
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login_screen);
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
ImageView bubbles = (ImageView) findViewById(R.id.bubbles);
}
But bubbles ends up being null because it can't find it because its looking in the activity xml one, but really the imageview is in the fragment one, how can I get it to look there?
Thanks
Make your PlaceholderFragment fragment onCreateView(....) like
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.gragment_loginscreen, container, false);
ImageView bubbles = (ImageView)view.findViewById(R.id.bubbles);
return view;
}
and used getActivity() as a Context in Fragment like
Animation animContentUp = AnimationUtils.loadAnimation(getActivity(), R.anim.slide_up_service);
Place the imageView in your PlaceholderFragment onCreateView and in the PlaceholderFragment inflate the layout gragment_loginscreen which will generate a view..
example:
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.gragment_loginscreen, container, false);
ImageView bubbles = (ImageView)view.findViewById(R.id.bubbles);
return view;
}
I'm attempting to customize the fragment layout by returning my own view hierarchy from onCreateView(LayoutInflater, ViewGroup, Bundle). This inflates my custom view, but seems to stack the views instead of inflating within, I see everything at once. Any help is appreciated.
MyActivity.java:
public class MyActivity extends FragmentActivity{
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getSupportFragmentManager().findFragmentById(android.R.id.content) == null) {
ArrayListFragment list = new ArrayListFragment();
getSupportFragmentManager().beginTransaction().add(android.R.id.content, list).commit();
}
}
public static class ArrayListFragment extends ListFragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
inflater.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.main, container);
return super.onCreateView(inflater, container, savedInstanceState);
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
String List[] = {"Larry", "Moe", "Curly"};
setListAdapter(new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, List));
}
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="8dp"
android:paddingRight="8dp">
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="THIS IS A BUTTON" />
<ListView
android:id="#android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00FF00"
android:layout_weight="1"
android:drawSelectorOnTop="false" />
<TextView
android:id="#android:id/empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FF0000"
android:text="No data" />
</LinearLayout>
I wasn't returning the new view within the onCreateView method of the ListFragment class. For instance:
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.main, null);
return view;
}
All works well now in the land of Android!
I think you'd better
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.main, container, false);
return root;
}
optimized way and shot code
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.list_alphabet, container, false);
}
getSupportFragmentManager().beginTransaction().add(android.R.id.content, list).commit();
List is not accepted, it's looking for a fragment.
use this pattern, works perfectly!
inflater.inflate(R.layout.list_layout, container, false);
public View inflate (XmlPullParser parser, ViewGroup root, boolean attachToRoot)
attachToRoot Whether the inflated hierarchy should be attached to the root parameter? If false, root is only used to create the correct subclass of LayoutParams for the root view in the XML.