I am trying to implement an activity with a button. This button, when pressed, will take you to the first page of a ViewPager. Sounds simple enough, right?
I'm a bit confused as to how the ViewPager and the FragmentStatePagerAdapter (FSPA) work, however.
In the android documentation for FragmentStatePageradapter, there is a very useful example which has taught me a lot but has left me with a couple questions. From what I can gather, in the example:
public class FragmentStatePagerSupport extends Activity {
static final int NUM_ITEMS = 10;
MyAdapter mAdapter;
ViewPager mPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_pager);
mAdapter = new MyAdapter(getFragmentManager());
mPager = (ViewPager)findViewById(R.id.pager);
mPager.setAdapter(mAdapter);
// Watch for button clicks.
Button button = (Button)findViewById(R.id.goto_first);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mPager.setCurrentItem(0);
}
});
button = (Button)findViewById(R.id.goto_last);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mPager.setCurrentItem(NUM_ITEMS-1);
}
});
}
public static class MyAdapter extends FragmentStatePagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return NUM_ITEMS;
}
#Override
public Fragment getItem(int position) {
return ArrayListFragment.newInstance(position);
}
}
public static class ArrayListFragment extends ListFragment {
int mNum;
/**
* Create a new instance of CountingFragment, providing "num"
* as an argument.
*/
static ArrayListFragment newInstance(int num) {
ArrayListFragment f = new ArrayListFragment();
// Supply num input as an argument.
Bundle args = new Bundle();
args.putInt("num", num);
f.setArguments(args);
return f;
}
/**
* When creating, retrieve this instance's number from its arguments.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNum = getArguments() != null ? getArguments().getInt("num") : 1;
}
/**
* The Fragment's UI is just a simple text view showing its
* instance number.
*/
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_pager_list, container, false);
View tv = v.findViewById(R.id.text);
((TextView)tv).setText("Fragment #" + mNum);
return v;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setListAdapter(new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
Log.i("FragmentList", "Item clicked: " + id);
}
}
}
the FragmentStatePagerAdapter is created to dynamically create a ListFragment for each list item in Cheeses.sCheeseStrings. This wasn't shown in the example but this Cheeses.sCheeseStrings is just a string array with multiple cheese types.
My questions:
How does the ViewPager actually change pages? Is this something that isn't shown?
From the example, I can see that the implemented buttons can take the user to the first or last page but what about everything else in between?
For the FSPA, it is only required to define the getCount method and the getItem() method. How does the ViewPager actually make use of these methods?
Pertaining to my app, I want to have a main activity with a viewpager which isn't active until you press a button which takes you to the first page. From here each page created will hold a different string. Is this method suitable for such a task?
Thank you for anyone willing to help :)
Related
I have a FRAGMENT with a viewpager with 7 other fragments. These fragments are used to enter user details. In the final fragment, there is a "submit" button where I need to get all the user details entered in the other fragments. How can I do this
I saw this question which didnt help. So please dont mark this question duplicate.
The base fragment:
public class Register_Layout extends Fragment implements ViewPager.OnPageChangeListener{
public Register_Layout(){}
static ViewPager viewPager1;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_register_layout, container, false);
viewPager1 = (ViewPager) view.findViewById(R.id.view_pager1);
viewPager1.setOffscreenPageLimit(7);
FragmentManager fragmentManager = getActivity().getSupportFragmentManager();
viewPager1.setAdapter(new MyAdapter(fragmentManager));
return view;
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
}
#Override
public void onPageScrollStateChanged(int state) {
}
}
class MyAdapter extends FragmentPagerAdapter{
public MyAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
Fragment fragment = null;
if(position==0)
{
fragment = new Register();
}
if(position==1)
{
fragment = new Register_Page2();
}
if(position==2)
{
fragment = new Register_Page3();
}
if(position==3)
{
fragment = new Register_Page4();
}
if(position==4)
{
fragment = new Register_Page5();
}
if(position==5)
{
fragment = new Register_Page6();
}
if(position==6)
{
fragment = new Register_Page7();
}
return fragment;
}
#Override
public int getCount() {
return 7;
}
}
The final fragment where I should get data of all other fragments:
public class Register_Page7 extends Fragment {
public Register_Page7(){
}
EditText editText;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_register_page7, container, false);
Button Previous = (Button) view.findViewById(R.id.Previous7);
Button Regiter = (Button) view.findViewById(R.id.Submit);
Regiter.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getActivity());
alertDialogBuilder.setMessage("Are you sure you want to submit?");
alertDialogBuilder.setPositiveButton("Yes",new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1) {
}
});
alertDialogBuilder.setNegativeButton("No,Let me check the details again", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
}
});
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}
});
Previous.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new Register_Layout().viewPager1.setCurrentItem(5);
}
});
return view;
}
}
You will probably want to use the fragment manager to get all of the instantiated fragments, and loop through them to get their relevant data.
You could create a subclass of Fragment that all of the fragments would inherit from. This subclass would have a getText method(or some other type of public method), that gets the text from the EditText view.
For other types of data(like switches), you would have similar functions to get the data from the fragment.
Edited
So you could create a new fragment that is derived from Fragment.
public class BaseEntryFragment extends Fragment {
public BaseEntryFragment() {}
public String getEntryText() {}
}
Then you take your existing fragments and extend your new fragment..
public class Register_Page7 extends BaseEntryFragment {
private EditText _editText;
public Register_Page7() {}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
//other create view code
_editText = (EditText)FindViewById(R.id.edit_text);
}
#Override
public String getEntryText() {
return _editText.getText();
}
}
Then with your submit..
List<Fragment> fragments = getActivity().getSupportFragmentManager().getFragments();
for(Fragment frag : fragments) {
// do type checks here
BaseEntryFragment f = (BaseEntryFragment)frag;
String someValue = f.getEntryText();
}
Please note, my Java is really really rusty, so it may not be the perfect syntax. This is just some code to get you started and not intended to be copied and pasted.
i think it is easier in each fragment, you store the user data on a SharedPreference (the data structure can be a json string or whatever you like), at the end (last fragment) read the shared pref data, and perform the register
hope that helps
I recommend you to use an Activity to hold your ViewPager and declare there the variables or objects you want to save from Fragments.
In each Fragment you want to save data you have to use interface to pass the data to the Activity. Here is the way to do it: Passing data between a fragment and its container activity
Then in your last Fragment you can call (with generated getters for the variables I mentioned before) to your container Activity like this:
YourActivity yourActivity = ((YourActivity) getActivity());
int foo = yourActivity.getFooInt();
You can find fragments in your Activity and get data from each fragment by public method. Variable position is position of fragment in your viewpager
public Fragment getFragment(ViewPager container, int position) {
String name = makeFragmentName(container.getId(), position);
return mFragmentManager.findFragmentByTag(name);
}
private static String makeFragmentName(int viewId, int index) {
return "android:switcher:" + viewId + ":" + index;
}
I am trying to get some text from editTexts on different fragments. So what I do first is define my mPager and mPagerAdapter:
a_Atenuacion Activity
public class a_Atenuacion extends FragmentActivity{
private static final int NUM_PAGES = 3;
/**
* The pager widget, which handles animation and allows swiping horizontally to access previous
* and next wizard steps.
*/
private ViewPager mPager;
/**
* The pager adapter, which provides the pages to the view pager widget.
*/
private PagerAdapter mPagerAdapter;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.a_dat_viewpager);
// Instantiate a ViewPager and a PagerAdapter.
mPager = (ViewPager) findViewById(R.id.pager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
}
private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
public ScreenSlidePagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch(position){
case 0:
return new a_Dat_Inicio1();
case 1:
return new a_Dat_Inicio2();
case 2:
return new a_Dat_Inicio3();
}
return null;
}
#Override
public int getCount() {
return NUM_PAGES;
}
}
}
Then I get my 3 fragments classes (Both 1st and 2nd layouts have an editText, but the 3rd one has an editText and a button). The button function is that when I am in the last fragment (fragment3) it take info form (different editTexts) and send to another activity.
a_Dat_Inicio1 Fragment
public class a_Dat_Inicio1 extends Fragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.e("Test", "hello");
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.a_dat_inicio1, container, false);
return view;
}
}
a_Dat_Inicio3 Fragment
public class a_Dat_Inicio3 extends Fragment {
EditText edit3;
EditText edit2;
EditText edit1;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.e("Test", "hello");
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.a_dat_inicio3, container, false);
edit1 = (EditText)getActivity().findViewById(R.id.editText1);
final String edit11 = edit1.getText().toString();
edit2 = (EditText)getActivity().findViewById(R.id.editText2);
final String edit22 = edit2.getText().toString();
edit3 = (EditText)view.findViewById(R.id.editText3);
final String edit33 = edit3.getText().toString();
Button but=(Button) view.findViewById(R.id.button);
but.setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
//Creamos el bundle
Bundle bundle = new Bundle();
//Le ponemos la variable parametro con el contenido (key, valor)
bundle.putString("edit3", edit33);
bundle.putString("edit2", edit22);
bundle.putString("edit1", edit11);
Intent net= new Intent(v.getContext(),Prueba1.class);
net.putExtras(bundle);
startActivity(net);
}
});
return view;
}
}
Finally I get bundle on another activity (Prueba1.class) and it is curious that I only get result for editText1 (on 1st fragment) and rest are null.
Can anybody give me a help?
Thanks in advance.
finally I get over an interface, that is the only way I think to get soemthing on already defined fragments.
My code get like this:
1st define an interface
public interface OnEditTextChanged {
public void onEditPressed1(String edit1);
public void onEditPressed2(String edit1);
public void onEditPressed3(String edit1);
Then fragment activity:
public class a_Dat_Inicio1 extends Fragment {
EditText edit;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.e("Test", "hello");
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.a_1dat_inicio1, container, false);
init (view);
return view;
}
OnEditTextChanged editListener;
#Override
public void onAttach(Activity activity){
super.onAttach(activity);
try{
editListener=(OnEditTextChanged) getActivity();
}catch(ClassCastException e){
throw new ClassCastException(activity.toString()+"must implemnt onEditPressed");
}
}
private void init(View view) {
edit=(EditText) view.findViewById(R.id.editText1);
//cada vez que se modifique texto llamar
edit.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable s) {
final String edit11 = edit.getText().toString();
editListener.onEditPressed1(edit11);
}
});
And finally on our main activity, call the method:
public class a_Atenuacion extends FragmentActivity implements OnEditTextChanged {
String dat1;
String dat2;
String dat3;
private static final int NUM_PAGES = 3;
private PagerAdapter mPagerAdapter;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.a_1dat_viewpager);
// Instantiate a ViewPager and a PagerAdapter.
mPager = (ViewPager) findViewById(R.id.pager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
//HERE DO WHATEVER YOU WANT WITH THE DATA CAUGTH ON THE EDIT 1 METHOD
}
#Override
public void onEditPressed1(String edit1) {
if(mPager.getCurrentItem()==0){
dat1=edit1;
Toast bread = Toast.makeText(getApplicationContext(), "edit1", Toast.LENGTH_LONG);
bread.show();
}
}
HOPE this help someone!!!
In any way thanks!!!
Try this:
In your second fragment, pass the intent extras and your value. For example:
In you second fragment, do this :
Intent someintent = new Intent();
//Some first result
someintent.putExtra("your_value_one", your_value_one);
//Some Second result
someintent.putExtra("your_value_two", your_value_two);
//Some third result
someintent.putExtra("your_value_three", your_value_three);
getActivity().setResult(getActivity().RESULT_OK,someintent);
getActivity().finish();
In your other fragment, where you want this result, do this on your other fragment like this:
1) Make some method to get the info.
private void getInfo() {
//Note: The values are coming from a diff activity or fragment and so the strings should match.
Intent data = new Intent();
String first_value = data.getStringExtra("your_value_one");
String second_value = data.getStringExtra("your_value_two");
String third_value = data.getStringExtra("your_value_three");
Log.i("First Value: ", first_value);
Log.i("First Value: ", second_value);
Log.i("First Value: ", third_value);
}
After making this method, just call it on your onActivityCreated().
Now you can use those string however and wherever you want to. If you want to use those values anywhere else, make sure to define you strings at the very start so that you can use the values anywhere.
Hope this answer helps .. :)
I am trying to get some text from editTexts on different fragments. So what I do first is define my mPager and mPagerAdapter:
a_Atenuacion Activity
public class a_Atenuacion extends FragmentActivity{
private static final int NUM_PAGES = 3;
/**
* The pager widget, which handles animation and allows swiping horizontally to access previous
* and next wizard steps.
*/
private ViewPager mPager;
/**
* The pager adapter, which provides the pages to the view pager widget.
*/
private PagerAdapter mPagerAdapter;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.a_dat_viewpager);
// Instantiate a ViewPager and a PagerAdapter.
mPager = (ViewPager) findViewById(R.id.pager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
}
private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
public ScreenSlidePagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch(position){
case 0:
return new a_Dat_Inicio1();
case 1:
return new a_Dat_Inicio2();
case 2:
return new a_Dat_Inicio3();
}
return null;
}
#Override
public int getCount() {
return NUM_PAGES;
}
}
}
Then I get my 3 fragments classes (Both 1st and 2nd layouts have an editText, but the 3rd one has an editText and a button). The button function is that when I am in the last fragment (fragment3) it take info form (different editTexts) and send to another activity.
a_Dat_Inicio1 Fragment
public class a_Dat_Inicio1 extends Fragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.e("Test", "hello");
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.a_dat_inicio1, container, false);
return view;
}
}
a_Dat_Inicio3 Fragment
public class a_Dat_Inicio3 extends Fragment {
EditText edit3;
EditText edit2;
EditText edit1;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.e("Test", "hello");
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.a_dat_inicio3, container, false);
edit1 = (EditText)getActivity().findViewById(R.id.editText1);
final String edit11 = edit1.getText().toString();
edit2 = (EditText)getActivity().findViewById(R.id.editText2);
final String edit22 = edit2.getText().toString();
edit3 = (EditText)view.findViewById(R.id.editText3);
final String edit33 = edit3.getText().toString();
Button but=(Button) view.findViewById(R.id.button);
but.setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
//Creamos el bundle
Bundle bundle = new Bundle();
//Le ponemos la variable parametro con el contenido (key, valor)
bundle.putString("edit3", edit33);
bundle.putString("edit2", edit22);
bundle.putString("edit1", edit11);
Intent net= new Intent(v.getContext(),Prueba1.class);
net.putExtras(bundle);
startActivity(net);
}
});
return view;
}
}
Finally I get bundle on another activity (Prueba1.class) and it is curious that I only get result for editText1 (on 1st fragment) and rest are null.
Can anybody give me a help?
Thanks in advance.
finally I get over an interface, that is the only way I think to get soemthing on already defined fragments.
My code get like this:
1st define an interface
public interface OnEditTextChanged {
public void onEditPressed1(String edit1);
public void onEditPressed2(String edit1);
public void onEditPressed3(String edit1);
Then fragment activity:
public class a_Dat_Inicio1 extends Fragment {
EditText edit;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.e("Test", "hello");
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.a_1dat_inicio1, container, false);
init (view);
return view;
}
OnEditTextChanged editListener;
#Override
public void onAttach(Activity activity){
super.onAttach(activity);
try{
editListener=(OnEditTextChanged) getActivity();
}catch(ClassCastException e){
throw new ClassCastException(activity.toString()+"must implemnt onEditPressed");
}
}
private void init(View view) {
edit=(EditText) view.findViewById(R.id.editText1);
//cada vez que se modifique texto llamar
edit.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable s) {
final String edit11 = edit.getText().toString();
editListener.onEditPressed1(edit11);
}
});
And finally on our main activity, call the method:
public class a_Atenuacion extends FragmentActivity implements OnEditTextChanged {
String dat1;
String dat2;
String dat3;
private static final int NUM_PAGES = 3;
private PagerAdapter mPagerAdapter;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.a_1dat_viewpager);
// Instantiate a ViewPager and a PagerAdapter.
mPager = (ViewPager) findViewById(R.id.pager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
//HERE DO WHATEVER YOU WANT WITH THE DATA CAUGTH ON THE EDIT 1 METHOD
}
#Override
public void onEditPressed1(String edit1) {
if(mPager.getCurrentItem()==0){
dat1=edit1;
Toast bread = Toast.makeText(getApplicationContext(), "edit1", Toast.LENGTH_LONG);
bread.show();
}
}
HOPE this help someone!!!
In any way thanks!!!
Try this:
In your second fragment, pass the intent extras and your value. For example:
In you second fragment, do this :
Intent someintent = new Intent();
//Some first result
someintent.putExtra("your_value_one", your_value_one);
//Some Second result
someintent.putExtra("your_value_two", your_value_two);
//Some third result
someintent.putExtra("your_value_three", your_value_three);
getActivity().setResult(getActivity().RESULT_OK,someintent);
getActivity().finish();
In your other fragment, where you want this result, do this on your other fragment like this:
1) Make some method to get the info.
private void getInfo() {
//Note: The values are coming from a diff activity or fragment and so the strings should match.
Intent data = new Intent();
String first_value = data.getStringExtra("your_value_one");
String second_value = data.getStringExtra("your_value_two");
String third_value = data.getStringExtra("your_value_three");
Log.i("First Value: ", first_value);
Log.i("First Value: ", second_value);
Log.i("First Value: ", third_value);
}
After making this method, just call it on your onActivityCreated().
Now you can use those string however and wherever you want to. If you want to use those values anywhere else, make sure to define you strings at the very start so that you can use the values anywhere.
Hope this answer helps .. :)
I have a Fragment container and some buttons outside the fragment which interact with the content of the fragment. When I click on the button, I need to get the information inside the text elements. This is what I have right now, but it doesn't work.
The code comes from the fragment pager demos.
Button bm = (Button) findViewById(R.id.bm);
bm.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
EditText editTextIn1 = (EditText) v.findViewById(R.id.editTextIn1);
}
});
edit
I use this sample:
http://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter.html
public class FragmentStatePagerSupport extends FragmentActivity {
static final int NUM_ITEMS = 10;
MyAdapter mAdapter;
ViewPager mPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_pager);
mAdapter = new MyAdapter(getSupportFragmentManager());
mPager = (ViewPager)findViewById(R.id.pager);
mPager.setAdapter(mAdapter);
// Watch for button clicks.
Button button = (Button)findViewById(R.id.goto_first);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mPager.setCurrentItem(0);
}
});
button = (Button)findViewById(R.id.goto_last);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mPager.setCurrentItem(NUM_ITEMS-1);
}
});
}
public static class MyAdapter extends FragmentStatePagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return NUM_ITEMS;
}
#Override
public Fragment getItem(int position) {
return ArrayListFragment.newInstance(position);
}
}
public static class ArrayListFragment extends ListFragment {
int mNum;
/**
* Create a new instance of CountingFragment, providing "num"
* as an argument.
*/
static ArrayListFragment newInstance(int num) {
ArrayListFragment f = new ArrayListFragment();
// Supply num input as an argument.
Bundle args = new Bundle();
args.putInt("num", num);
f.setArguments(args);
return f;
}
/**
* When creating, retrieve this instance's number from its arguments.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNum = getArguments() != null ? getArguments().getInt("num") : 1;
}
/**
* The Fragment's UI is just a simple text view showing its
* instance number.
*/
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_pager_list, container, false);
View tv = v.findViewById(R.id.text);
((TextView)tv).setText("Fragment #" + mNum);
return v;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setListAdapter(new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
Log.i("FragmentList", "Item clicked: " + id);
}
}
}
The v in your onCLickListener is referring to the Button itself, and calling findViewByID on the button means that the button is looking through its children (it doesn't have any) to find an EditText element. if this code is running in an activity, you may be able to do:
Button bm = (Button) findViewById(R.id.bm);
bm.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
EditText editTextIn1 = (EditText) findViewById(R.id.editTextIn1);
}
});
alternately, if you have a reference to the fragment's container (like a framelayout or something), you can do
Button bm = (Button) findViewById(R.id.bm);
bm.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
EditText editTextIn1 = (EditText) myFragmentContainer.findViewById(R.id.editTextIn1);
}
});
Any idea on how to set separate activity on each page on ViewPager. I try compatibility package by using FragmentActivity, but on the sample given, it just one type which is ListFragment.
The code I copied from sample of compatibility v4:
public class ViewPagerListActivity extends FragmentActivity {
static final int NUM_ITEMS = 10;
MyAdapter mAdapter;
ViewPager mPager;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_pager);
mAdapter = new MyAdapter(getSupportFragmentManager());
mPager = (ViewPager)findViewById(R.id.pager);
mPager.setAdapter(mAdapter);
// Watch for button clicks.
Button button = (Button)findViewById(R.id.goto_first);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mPager.setCurrentItem(0);
}
});
button = (Button)findViewById(R.id.goto_last);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mPager.setCurrentItem(NUM_ITEMS-1);
}
});
}
public static class MyAdapter extends FragmentPagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return NUM_ITEMS;
}
#Override
public Fragment getItem(int position) {
return ArrayListFragment.newInstance(position);
}
}
public static class ArrayListFragment extends ListFragment {
int mNum;
/**
* Create a new instance of CountingFragment, providing "num"
* as an argument.
*/
static ArrayListFragment newInstance(int num) {
ArrayListFragment f = new ArrayListFragment();
// Supply num input as an argument.
Bundle args = new Bundle();
args.putInt("num", num);
f.setArguments(args);
return f;
}
/**
* When creating, retrieve this instance's number from its arguments.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNum = getArguments() != null ? getArguments().getInt("num") : 1;
}
/**
* The Fragment's UI is just a simple text view showing its
* instance number.
*/
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_pager_list, container, false);
View tv = v.findViewById(R.id.text);
((TextView)tv).setText("Fragment #" + mNum);
return v;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setListAdapter(new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
Log.i("FragmentList", "Item clicked: " + id);
}
}
}
The following execution:
I would like to put activity or view with specific UI and process on each ViewPager, not just one type ListView like on above code sample. for example page 1 is map information; page 2 is combination TextView, EditView and button, Page 3 is Gallery; and so on. Any idea to implement it? or is there any tutorial for this?