我与Tablayout开发了一个项目，包括3个viewpager项目，从每个edittext获取viewpager中的数据，我需要清除viewpager中的所有数据并将所有数据设置为空，当按钮点击事件发生时，这是在最后一个viewpager项目中设置的。
这是父fragment，Homefragment.class
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
view = inflater.inflate(R.layout.activity_main, container, false);
super.onCreate(savedInstanceState);
ButterKnife.bind(this, view);
ButterKnife.bind(this, view);
final ViewPager viewPager = ButterKnife.findById(view, R.id.viewpager2);
setupViewPager(viewPager);
TabLayout tabLayout = ButterKnife.findById(view, R.id.tabLayout);
tabLayout.setupWithViewPager(viewPager);
next = ButterKnife.findById(view, R.id.nxt_btn);
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
viewPager.setCurrentItem(viewPager.getCurrentItem() + 1, true);
}
});
return view;
}
private void setupViewPager(final ViewPager viewPager) {
final ViewPagerAdapter adapter = new ViewPagerAdapter(getChildFragmentManager());
adapter.addFragment(new Customer_details(), "Customer Details");
adapter.addFragment(new Order_details(), "Order Details");
adapter.addFragment(new Payment_details(), "Payment Details");
viewPager.setAdapter(adapter);
viewPager.setCurrentItem(0);
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
if (viewPager.getCurrentItem() == 2) {
next.setVisibility(View.INVISIBLE);
} else if (viewPager.getCurrentItem() == 0) {
next.setVisibility(View.VISIBLE);
} else if (viewPager.getCurrentItem() == 1) {
next.setVisibility(View.VISIBLE);
}
}
@Override
public void onPageSelected(int position) {
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
}
if (view instanceof ViewGroup) {
for (int i = 0; i < ((ViewGroup) view).getChildCount(); ++i) {
View innerview = ((ViewGroup) view).getChildAt(i);
setupUI(innerview);
}
}
}
@Override
public void onDestroyView() {
super.onDestroyView();
//unbinder.unbind();
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
public void onButtonPressed() {
startActivity(new Intent(null, MainActivity.class));
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
@Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
getView().setFocusableInTouchMode(true);
getView().requestFocus();
getView().setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_UP
&& keyCode == KeyEvent.KEYCODE_BACK) {
// handle back button
Intent i=new Intent(getActivity(),MainActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
getActivity().finish();
return true;
}
return false;
}
});
}
}
Customer.class
public class Customer_details extends Fragment {
public static int selectedid;
public static EditText cname, cnumber, cnumber2, caddress, cpincode, clandmark;
public static Spinner spinner, snum, snum1, sp1, sp2;
public static RadioGroup radioGroup;
public static RadioButton radioButton;
TextView ctype, name, contact1, contact2, dispatch, address, pincode, landmark, source;
private PayOrder_Interface pay;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
//return
final View view = inflater.inflate(R.layout.activity_cdetails, container, false);
cname = (EditText) view.findViewById(R.id.cname);
cnumber = (EditText) view.findViewById(R.id.cnumber1);
cnumber2 = (EditText) view.findViewById(R.id.cnumber2);
caddress = (EditText) view.findViewById(R.id.caddress);
cpincode = (EditText) view.findViewById(R.id.cpincode);
clandmark = (EditText) view.findViewById(R.id.clandmark);
String[] values = {"Select", "Retail", "Bulk"};
spinner = (Spinner) view.findViewById(R.id.spinner);
final String[] value = {"Select", "+91", "+64", "+355", "+213", "+214", "+54", "+374", "+43", "+994", "+1", "+973", "+880", "+32", "+1-(441)", "+591", "+387", "+267", "+55", "359", "+673"};
snum = (Spinner) view.findViewById(R.id.spinner3);
String[] val = {"Select", "+91", "+64", "+355", "+213", "+214", "+54", "+374", "+43", "+994", "+1", "+973", "+880", "+32", "+1-(441)", "+591", "+387", "+267", "+55", "359", "+673"};
snum1 = (Spinner) view.findViewById(R.id.spinner4);
String[] v = {"Select", "Online", "Existing", "Sales Team", "Store", "Zomato"};
sp1 = (Spinner) view.findViewById(R.id.spinner_2);
String[] b = {"Select", "GaarG Store 1", "PG Tech"};
sp2 = (Spinner) view.findViewById(R.id.spinner_bulk);
radioGroup = (RadioGroup) view.findViewById(R.id.radioGroup);
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
public void onCheckedChanged(RadioGroup group, int checkedId) {
// checkedId is the RadioButton selected
switch (checkedId) {
case R.id.radioButton1:
// switch to fragment 1
break;
case R.id.radioButton2:
// Fragment 2
break;
}
selectedid = radioGroup.getCheckedRadioButtonId();
radioButton = (RadioButton) view.findViewById(selectedid);
}
});
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, values);
ArrayAdapter<String> a = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, val);
ArrayAdapter<String> adapt = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, value);
ArrayAdapter<String> adap = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, v);
ArrayAdapter<String> bulk = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, b);
adapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
adapt.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
a.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
adap.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
bulk.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
spinner.setAdapter(adapter);
snum1.setAdapter(a);
snum.setAdapter(adapt);
sp1.setAdapter(adap);
sp2.setAdapter(bulk);
getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
// String txt=(String)spinner.getSelectedItem();
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
Object item = parentView.getItemAtPosition(position);
/* if(item!=null){
Toast.makeText(getContext(),item.toString() + "Selected",Toast.LENGTH_SHORT).show();
}*/
//EventBus.getDefault().post(value);
switch (parentView.getSelectedItemPosition()) {
case (0): {
sp2.setVisibility(View.GONE);
//Do Nothing
}
break;
case (1): {
contact1.setVisibility(View.VISIBLE);
contact2.setVisibility(View.VISIBLE);
dispatch.setVisibility(View.VISIBLE);
address.setVisibility(View.VISIBLE);
pincode.setVisibility(View.VISIBLE);
landmark.setVisibility(View.VISIBLE);
source.setVisibility(View.VISIBLE);
cname.setVisibility(View.VISIBLE);
cnumber.setVisibility(View.VISIBLE);
cnumber2.setVisibility(View.VISIBLE);
caddress.setVisibility(View.VISIBLE);
cpincode.setVisibility(View.VISIBLE);
ctype.setVisibility(View.VISIBLE);
clandmark.setVisibility(View.VISIBLE);
spinner.setVisibility(View.VISIBLE);
sp1.setVisibility(View.VISIBLE);
snum.setVisibility(View.VISIBLE);
snum1.setVisibility(View.VISIBLE);
sp2.setVisibility(View.GONE);
radioGroup.setVisibility(View.VISIBLE);
// radioButton_1.setVisibility(View.VISIBLE);
//radioButton_2.setVisibility(View.VISIBLE);
}
break;
case (2): {
contact1.setVisibility(View.GONE);
contact2.setVisibility(View.GONE);
dispatch.setVisibility(View.GONE);
address.setVisibility(View.GONE);
pincode.setVisibility(View.GONE);
landmark.setVisibility(View.GONE);
source.setVisibility(View.GONE);
cname.setVisibility(View.GONE);
cnumber.setVisibility(View.GONE);
cnumber2.setVisibility(View.GONE);
caddress.setVisibility(View.GONE);
cpincode.setVisibility(View.GONE);
clandmark.setVisibility(View.GONE);
ctype.setVisibility(View.VISIBLE);
spinner.setVisibility(View.VISIBLE);
snum.setVisibility(View.GONE);
snum1.setVisibility(View.GONE);
sp1.setVisibility(View.GONE);
sp2.setVisibility(View.VISIBLE);
radioGroup.setVisibility(View.GONE);
// radioButton_1.setVisibility(View.GONE);
// radioButton_2.setVisibility(View.GONE);
}
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
return view;
}
public String getEditetxtValue() {
return cname.getText().toString();
}
@Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
getView().setFocusableInTouchMode(true);
getView().requestFocus();
getView().setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_UP
&& keyCode == KeyEvent.KEYCODE_BACK) {
// handle back button
Intent a = new Intent(getActivity(), MainActivity.class);
startActivity(a);
getActivity().finish();
return true;
}
return false;
}
});
}
Order.class
public class Order_details extends DialogFragment implements
DatePickerDialog.OnDateSetListener {
private static final String[] FLAVOURS = new String[]{"Venilla", "Stawberry", "Chocalate", "Mango", "Pineapple"};
public static EditText edittext, edmessage;
public static Spinner spinner, sp, select;
public static AutoCompleteTextView textView;
DatePickerDialog.OnDateSetListener ondate = new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
edittext.setText(String.valueOf(dayOfMonth) + "-" + String.valueOf(monthOfYear + 1)
+ "-" + String.valueOf(year));
}
};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate (R.layout.activity_odetails, container, false);
edmessage = (EditText) view.findViewById(R.id.ed_cake);
String[] egg = {"Select", "Egg", "Eggless", "N/A"};
spinner = (Spinner) view.findViewById(R.id.spinner_e);
String[] weight = {"Select", "0.5kg", "1kg", "1.5kg", "2kg", "2.5kg", "3kg", "6kg", "5kg", "4kg", "4.5kg", "3.5kg", "7kg", "8kg,", "7.5kg", "10kg"};
sp = (Spinner) view.findViewById(R.id.spinner_wt);
String[] time = {"Select", "8Am- 9Am", "11.30pm-11.45pm", "9am-10am", "10am-11am", "11AM=12PM", "12PM-1PM", "1PM-2PM", "2PM-3PM", "3PM-4PM", "4PM-5PM", "5PM-6PM", "6PM-7PM", "7PM-8PM", "8PM-9PM"};
select = (Spinner) view.findViewById(R.id.spinner_t);
textView = (AutoCompleteTextView) view.findViewById(R.id.au_flavour);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, egg);
ArrayAdapter<String> p = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, weight);
ArrayAdapter<String> d = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, time);
adapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
ArrayAdapter<String> au = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_dropdown_item_1line, FLAVOURS);
p.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
d.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
spinner.setAdapter(adapter);
sp.setAdapter(p);
textView.setAdapter(au);
select.setAdapter(d);
getActivity().getWindow().setSoftInputMode(WindowManager.
LayoutParams.SOFT_INPUT_ADJUST_PAN);
return view;
}
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
edittext = (EditText) view.findViewById(R.id.ed_date);
edittext.setInputType(InputType.TYPE_NULL);
edittext.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
showDatePicker();
}
});
}
public static void hideSoftKeyboard(Activity activity) {
InputMethodManager inputMethodManager =
(InputMethodManager) activity.getSystemService(
Activity.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(
activity.getCurrentFocus().getWindowToken(), 0);
}
public void setupUI(View view) {
if (!(view instanceof EditText)) {
view.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
hideSoftKeyboard(getActivity());
return false;
}
});
}
if (view instanceof ViewGroup) {
for (int i = 0; i < ((ViewGroup) view).getChildCount(); ++i) {
View innerview = ((ViewGroup) view).getChildAt(i);
setupUI(innerview);
}
}
}
private void showDatePicker() {
Bundle bundle=new Bundle();
Calendar calender = Calendar.getInstance();
Bundle args = new Bundle();
args.putInt("year", calender.get(Calendar.YEAR));
args.putInt("month", calender.get(Calendar.MONTH));
args.putInt("day", calender.get(Calendar.DAY_OF_MONTH));
date.setArguments(args);
date.setCallBack(ondate);
date.show(getFragmentManager(), "Date Picker");
}
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
}
@Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
getView().setFocusableInTouchMode(true);
getView().requestFocus();
getView().setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_UP
&& keyCode == KeyEvent.KEYCODE_BACK) {
startActivity(new Intent(getActivity(), MainActivity.class));
getActivity().finish();
return true;
}
return false;
}
});
}
Payment.class
public class Payment_details extends Fragment {
public static TextView payment, advance, balance, discount, extra, extra_amount, delivery;
public static EditText e_amount, e_advance, e_balance, e_discount, e_extra, e_extra_amount, e_delivery_charges, e_remark;
public static Spinner spinner;
Context context;
Button addextra, reset, save;
private LinearLayout laytype, layamount, laybalance, laydiscount, layexamt, laydelivery, layextra;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_payment_details, container, false);
e_amount = (EditText) view.findViewById(R.id.edtAmount);
e_advance = (EditText) view.findViewById(R.id.edtAdvance);
e_balance = (EditText) view.findViewById(R.id.edtBalance);
e_discount = (EditText) view.findViewById(R.id.e_discount);
e_extra = (EditText) view.findViewById(R.id.e_extra);
e_remark = (EditText) view.findViewById(R.id.e_remarks);
e_extra_amount = (EditText) view.findViewById(R.id.eextra_amount);
e_delivery_charges = (EditText) view.findViewById(R.id.e_delivery);
addextra = (Button) view.findViewById(R.id.add_extra);
reset = (Button) view.findViewById(R.id.btn_reset);
save = (Button) view.findViewById(R.id.save2);
String[] ptype = {"Select", "Cash", "EDC", "Online", "NEFT", "Cheque", "Not Paid"};
spinner = (Spinner) view.findViewById(R.id.spinner_pt);
laydiscount.setVisibility(View.GONE);
layextra.setVisibility(View.GONE);
layexamt.setVisibility(View.GONE);
laydelivery.setVisibility(View.GONE);
if (Customer_details.spinner.getSelectedItem().toString().equalsIgnoreCase("Bulk")) {
payment.setVisibility(View.GONE);
advance.setVisibility(View.GONE);
balance.setVisibility(View.GONE);
e_advance.setVisibility(View.GONE);
e_balance.setVisibility(View.GONE);
spinner.setVisibility(View.GONE);
}
textWatcher(e_advance);
textWatcher(e_discount);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, ptype);
adapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
spinner.setAdapter(adapter);
getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
addextra.setOnClickListener(new View.OnClickListener() {
int click = 0;
//int i=0;
@Override
public void onClick(View v) {
// int count =++_clicks;
if (click == 0) {
click = 1;
laydiscount.setVisibility(View.VISIBLE);
layextra.setVisibility(View.VISIBLE);
layexamt.setVisibility(View.VISIBLE);
laydelivery.setVisibility(View.VISIBLE);
} else {
click = 0;
laydiscount.setVisibility(View.GONE);
layextra.setVisibility(View.GONE);
layexamt.setVisibility(View.GONE);
laydelivery.setVisibility(View.GONE);
}
}
});
reset.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
clear();
Toast.makeText(getActivity(), "Working", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
e.printStackTrace();
}
}
});
save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
private void textWatcher(final EditText edit) {
edit.addTextChangedListener(new TextWatcher() {
int result,r=0;
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
result = 0;
//r=0;
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
int e = parse(e_amount) - parse(e_advance);
if (edit == e_discount && parse(e_discount) == 0) {
result = e;
}
else{
result = e - parse(e_discount);
}
}
@Override
public void afterTextChanged(Editable s) {
e_balance.setText(String.valueOf(result));
}
});
}
private int parse(EditText edt) {
String s = edt.getText().toString();
if (s.matches(""))s = "0";
return Integer.parseInt(s);
}
public void clear() {
Customer_details.spinner.setSelection(0);
Log.v(Customer_details.cname.getText().toString(), "name");
try {
Customer_details.cname.setText("");
Customer_details.snum.setSelection(0);
Customer_details.cnumber.setText("");
Customer_details.snum1.setSelection(0);
Customer_details.sp2.setSelection(0);
Customer_details.cnumber2.getText().clear();
Customer_details.caddress.getText().clear();
Customer_details.cpincode.getText().clear();
Customer_details.clandmark.getText().clear();
// Customer_details.radioButton.setChecked(false);
Customer_details.sp1.setSelection(0);
Customer_details.spinner.setSelection(0);
Customer_details.cnumber.setText("");
Order_details.spinner.setSelection(0);
Order_details.textView.setText("");
Order_details.sp.setSelection(0);
Order_details.edmessage.setText("");
Order_details.edittext.getText().clear();
Order_details.select.setSelection(0);
e_amount.setText("");
spinner.setSelection(0);
e_advance.setText("");
e_balance.setText("");
e_remark.setText("");
e_discount.setText("");
e_extra.setText("");
e_extra_amount.setText("");
e_delivery_charges.setText("");
spinner.setSelection(0);
e_amount.setText("");
e_advance.setText("");
e_balance.setText("");
e_remark.setText("");
} catch (Exception e) {
Log.i("MYLOG", "Message was not handled " + e.getMessage());
}
Toast.makeText(getActivity(), "Cleared ", Toast.LENGTH_SHORT).show();
}
}
我试图用这种方法清除这些物品，
edittext.setText(" ");edittext.getText().clear();仅清除订单和付款类数据客户数据无法清除。如何解决我的问题？
尝试在mViewPager.setOffscreenPageLimit(3);方法中设置此setUpViewPager()
理解
默认情况下，setOffscreenPageLimit()将设置为1，这意味着您将同时激活2个片段页面。由于您需要清除所有三个片段页面的EditText文本，然后设置setOffscreenPageLimit(3)（因为您使用的是3个片段）将使所有3个片段页面处于活动状态，并有助于对所有这些片段进行必要的更改。有关更多信息，请参阅Docs
void setOffscreenPageLimit（int limit）设置在空闲状态下视图层次结构中应保留到当前页面任一侧的页数。超出此限制的页面将在需要时从适配器重新创建。