How to use a spinner within a fragment in Android studio
I'm getting the error code I've printed below. I'm trying to use fragments and on my first fragment, i want to give users a choice of options using a spinner. To me it seems most logical to have this within my fragment1 class. However it doesn't seem to work. Furthermore at the moment my code works by calling the fragment 1 straight away, like my main activity.xml isn't shown (i'm not sure if this is correct or not, i'm a newb when it comes to android app development).
I'm getting the error on the ArrayAdapter call, marking 'this' as the culprate.
Fragment
public class Page1Fragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
savedInstanceState) {
View view = inflater.inflate(R.layout.page1_fragment, container, false);
Spinner spinner = (Spinner) view.findViewById(R.id.spinner);
// Create an ArrayAdapter using the string array and a default spinner layout
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, //this is where the error is called
R.array.planets_array, android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
spinner.setAdapter(adapter);
return view;
}
}
Main Activity
package provider.ac.stir.ac.uk.finallab;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText(R.string.tab_page1));
tabLayout.addTab(tabLayout.newTab().setText(R.string.tab_page2));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(),
tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new
TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {}
@Override
public void onTabReselected(TabLayout.Tab tab) {}
});
}
}
Error
Wrong 1st argument type. Found: 'provider.ac.tir.ac.uk.finallab.Page1Fragment', required: 'android.content.Context
java android
add a comment |
I'm getting the error code I've printed below. I'm trying to use fragments and on my first fragment, i want to give users a choice of options using a spinner. To me it seems most logical to have this within my fragment1 class. However it doesn't seem to work. Furthermore at the moment my code works by calling the fragment 1 straight away, like my main activity.xml isn't shown (i'm not sure if this is correct or not, i'm a newb when it comes to android app development).
I'm getting the error on the ArrayAdapter call, marking 'this' as the culprate.
Fragment
public class Page1Fragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
savedInstanceState) {
View view = inflater.inflate(R.layout.page1_fragment, container, false);
Spinner spinner = (Spinner) view.findViewById(R.id.spinner);
// Create an ArrayAdapter using the string array and a default spinner layout
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, //this is where the error is called
R.array.planets_array, android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
spinner.setAdapter(adapter);
return view;
}
}
Main Activity
package provider.ac.stir.ac.uk.finallab;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText(R.string.tab_page1));
tabLayout.addTab(tabLayout.newTab().setText(R.string.tab_page2));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(),
tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new
TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {}
@Override
public void onTabReselected(TabLayout.Tab tab) {}
});
}
}
Error
Wrong 1st argument type. Found: 'provider.ac.tir.ac.uk.finallab.Page1Fragment', required: 'android.content.Context
java android
Possible duplicate of Argument this doesn´t work. [required: 'android.content.context'
– Vladyslav Matviienko
Nov 23 '18 at 6:40
add a comment |
I'm getting the error code I've printed below. I'm trying to use fragments and on my first fragment, i want to give users a choice of options using a spinner. To me it seems most logical to have this within my fragment1 class. However it doesn't seem to work. Furthermore at the moment my code works by calling the fragment 1 straight away, like my main activity.xml isn't shown (i'm not sure if this is correct or not, i'm a newb when it comes to android app development).
I'm getting the error on the ArrayAdapter call, marking 'this' as the culprate.
Fragment
public class Page1Fragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
savedInstanceState) {
View view = inflater.inflate(R.layout.page1_fragment, container, false);
Spinner spinner = (Spinner) view.findViewById(R.id.spinner);
// Create an ArrayAdapter using the string array and a default spinner layout
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, //this is where the error is called
R.array.planets_array, android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
spinner.setAdapter(adapter);
return view;
}
}
Main Activity
package provider.ac.stir.ac.uk.finallab;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText(R.string.tab_page1));
tabLayout.addTab(tabLayout.newTab().setText(R.string.tab_page2));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(),
tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new
TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {}
@Override
public void onTabReselected(TabLayout.Tab tab) {}
});
}
}
Error
Wrong 1st argument type. Found: 'provider.ac.tir.ac.uk.finallab.Page1Fragment', required: 'android.content.Context
java android
I'm getting the error code I've printed below. I'm trying to use fragments and on my first fragment, i want to give users a choice of options using a spinner. To me it seems most logical to have this within my fragment1 class. However it doesn't seem to work. Furthermore at the moment my code works by calling the fragment 1 straight away, like my main activity.xml isn't shown (i'm not sure if this is correct or not, i'm a newb when it comes to android app development).
I'm getting the error on the ArrayAdapter call, marking 'this' as the culprate.
Fragment
public class Page1Fragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
savedInstanceState) {
View view = inflater.inflate(R.layout.page1_fragment, container, false);
Spinner spinner = (Spinner) view.findViewById(R.id.spinner);
// Create an ArrayAdapter using the string array and a default spinner layout
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, //this is where the error is called
R.array.planets_array, android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
spinner.setAdapter(adapter);
return view;
}
}
Main Activity
package provider.ac.stir.ac.uk.finallab;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText(R.string.tab_page1));
tabLayout.addTab(tabLayout.newTab().setText(R.string.tab_page2));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(),
tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new
TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {}
@Override
public void onTabReselected(TabLayout.Tab tab) {}
});
}
}
Error
Wrong 1st argument type. Found: 'provider.ac.tir.ac.uk.finallab.Page1Fragment', required: 'android.content.Context
java android
java android
asked Nov 23 '18 at 0:32
user9730036
Possible duplicate of Argument this doesn´t work. [required: 'android.content.context'
– Vladyslav Matviienko
Nov 23 '18 at 6:40
add a comment |
Possible duplicate of Argument this doesn´t work. [required: 'android.content.context'
– Vladyslav Matviienko
Nov 23 '18 at 6:40
Possible duplicate of Argument this doesn´t work. [required: 'android.content.context'
– Vladyslav Matviienko
Nov 23 '18 at 6:40
Possible duplicate of Argument this doesn´t work. [required: 'android.content.context'
– Vladyslav Matviienko
Nov 23 '18 at 6:40
add a comment |
1 Answer
1
active
oldest
votes
ArrayAdapter.createFromResource expects a Context
, and Fragment
is not a Context, so try with its Activity
. Simply change:
ArrayAdapter.createFromResource(this, R.array.planets_array, android.R.layout.simple_spinner_item);`
To:
ArrayAdapter.createFromResource(getActivity(), R.array.planets_array, android.R.layout.simple_spinner_item);`
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
ArrayAdapter.createFromResource expects a Context
, and Fragment
is not a Context, so try with its Activity
. Simply change:
ArrayAdapter.createFromResource(this, R.array.planets_array, android.R.layout.simple_spinner_item);`
To:
ArrayAdapter.createFromResource(getActivity(), R.array.planets_array, android.R.layout.simple_spinner_item);`
add a comment |
ArrayAdapter.createFromResource expects a Context
, and Fragment
is not a Context, so try with its Activity
. Simply change:
ArrayAdapter.createFromResource(this, R.array.planets_array, android.R.layout.simple_spinner_item);`
To:
ArrayAdapter.createFromResource(getActivity(), R.array.planets_array, android.R.layout.simple_spinner_item);`
add a comment |
ArrayAdapter.createFromResource expects a Context
, and Fragment
is not a Context, so try with its Activity
. Simply change:
ArrayAdapter.createFromResource(this, R.array.planets_array, android.R.layout.simple_spinner_item);`
To:
ArrayAdapter.createFromResource(getActivity(), R.array.planets_array, android.R.layout.simple_spinner_item);`
ArrayAdapter.createFromResource expects a Context
, and Fragment
is not a Context, so try with its Activity
. Simply change:
ArrayAdapter.createFromResource(this, R.array.planets_array, android.R.layout.simple_spinner_item);`
To:
ArrayAdapter.createFromResource(getActivity(), R.array.planets_array, android.R.layout.simple_spinner_item);`
answered Nov 23 '18 at 0:56
AaronAaron
1,7132212
1,7132212
add a comment |
add a comment |
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Possible duplicate of Argument this doesn´t work. [required: 'android.content.context'
– Vladyslav Matviienko
Nov 23 '18 at 6:40