显示android tablayout viewpager的不正确片段

时间：2018-07-05 11:20:53

标签： android android-fragments android-viewpager android-tablayout

This is the 3rd screen but the same screen is shown on tab numbered as 2>滑动到下一个片段时，我在“ HomeActivity”上有4个片段，应该显示新片段。

  1. 当我第一次滑动时，我的第二个标签显示了要在第3个标签下显示的片段，第3个标签显示了正确的预期片段
  2. 但是当我到达第四个片段时，向后滑动它会显示第二个和第三个选项卡的预期正确片段
  3. 第二个和第三个选项卡之间的行为不一致，因为有时要在第三个选项卡下显示的片段会在第二个选项卡下显示
  4. 所以主要问题在于显示第二个标签片段的第二个标签
  5. 我已经尝试了StackOverflow上的所有解决方案，但没有一个对我有用
  

请检查以下代码段以供参考

ViewPageAdapter.java 

public class ViewPagerAdapter extends FragmentStatePagerAdapter{
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);
}

@Override
public CharSequence getPageTitle(int position) {
    return mFragmentTitleList.get(position);
}}

HomeActivity.java 

public class HomeActivity extends AppCompatActivity {
private TabLayout tabLayout;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_home);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    final ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
    tabLayout = (TabLayout) findViewById(R.id.tabs);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setTitle("PERSONAL INFORMATION");
    setupViewPager(viewPager);
    tabLayout.setupWithViewPager(viewPager);
    tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            //1 PERSONAL INFORMATION
            //2 PROFESSIONAL INFORMATION
            //3 FINANCIAL INFORMATION
            //4 DOCUMENT DETAILS
            if (tab.getPosition() == 0) {
                getSupportActionBar().setTitle("PERSONAL INFORMATION");
                viewPager.setCurrentItem(0);
            } else if (tab.getPosition() == 1) {
                getSupportActionBar().setTitle("PROFESSIONAL INFORMATION");
                viewPager.setCurrentItem(1);
            } else if (tab.getPosition() == 2) {
                getSupportActionBar().setTitle("FINANCIAL INFORMATION");
                viewPager.setCurrentItem(2);
            } else if (tab.getPosition() == 3) {
                getSupportActionBar().setTitle("DOCUMENT DETAILS");
                viewPager.setCurrentItem(3);
            }
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {
        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {
        }
    });
}


private void setupViewPager(ViewPager viewPager) {
    ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
    adapter.addFragment(AssignedCustomerFragment.getInstance(), getResources().getString(R.string.assigned_tab));
    adapter.addFragment(CompletedCustomerFragment.getInstance(), getResources().getString(R.string.completed_tab));
    adapter.addFragment(FinancialDetailsFragment.getInstance(), getResources().getString(R.string.finance_info_tab));
    adapter.addFragment(CustomerDocumentFragment.getInstance(), getResources().getString(R.string.document_info_tab));
    viewPager.setAdapter(adapter);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case android.R.id.home:
            onBackPressed();
            return (true);
    }
    return (super.onOptionsItemSelected(item));
}

@Override
public void onBackPressed() {
    super.onBackPressed();
}}

Fragment2代码

 public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    super.onCreateView(inflater, container, savedInstanceState);
    final View view = inflater.inflate(R.layout.customer_professional_information, container, false);
    final HorizontalScrollView horscroll = (HorizontalScrollView) view.findViewById(R.id.horscroll);
    final HorizontalScrollView horscroll1 = (HorizontalScrollView) view.findViewById(R.id.horscroll1);
    final HorizontalScrollView horscroll2 = (HorizontalScrollView) view.findViewById(R.id.horscroll2);
    final RadioGroup salarieddom = (RadioGroup) view.findViewById(R.id.rdgsalarieddomain);
    final RadioGroup nonsalarieddom = (RadioGroup) view.findViewById(R.id.rdgnonsalaried);
    final RadioGroup paymentmode = (RadioGroup) view.findViewById(R.id.rdgpaymentmode);
    final TextView txtpaymentmode = (TextView) view.findViewById(R.id.txtpaymentmode);

    edtcompanyname = (EditText) view.findViewById(R.id.companyname);
    edtofficialid = (EditText) view.findViewById(R.id.txtofficialmailid);
    rdgprofession = (RadioGroup) view.findViewById(R.id.rdgprof);
    rdgsalariedoption = (RadioGroup) view.findViewById(R.id.rdgsalarieddomain);
    rdgsalarydrawnthrough = (RadioGroup) view.findViewById(R.id.rdgpaymentmode);
    rdgnonsalaried = (RadioGroup) view.findViewById(R.id.rdgnonsalaried);

    rdgprofession.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int i) {
            switch (i) {
                case R.id.rdbsalaried:
                    Toast.makeText(getActivity(), "Salaried", Toast.LENGTH_SHORT).show();
                    salariedornot = "Salaried";
                    break;
                case R.id.rdbnonsalaried:
                    Toast.makeText(getActivity(), "Non Salaried", Toast.LENGTH_SHORT).show();
                    salariedornot = "Non Salaried";
                    break;
            }
        }
    });


    rdgsalariedoption.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int i) {
            switch (i) {
                case R.id.rdbprivate:

                    salarysector = "Private";

                    break;
                case R.id.rdbpublic:

                    salarysector = "Public";

                    break;
                case R.id.rdbgovernment:

                    salarysector = "Government";

                    break;
            }
        }
    });

    rdgsalarydrawnthrough.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int i) {
            switch (i) {
                case R.id.rdbcash:

                    salarypaymentmode = "Cash";

                    break;
                case R.id.rdbcheque:

                    salarypaymentmode = "Cheque";

                    break;
                case R.id.rdbbanktranfer:

                    salarypaymentmode = "Direct Bank Transfer";

                    break;

            }
        }
    });


    rdgnonsalaried.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int i) {
            switch (i) {
                case R.id.rdbselfemployed:

                    salarysector = "Self employed";

                    break;
                case R.id.rdbbusiness:

                    salarysector = "Business";

                    break;
                case R.id.rdbretired:

                    salarysector = "Retired";

                    break;
                case R.id.rdbstudent:

                    salarysector = "Student";

                    break;
            }
        }
    });


    RadioGroup rdgGender = (RadioGroup) view.findViewById(R.id.rdgprof);
    rdgGender.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            switch (checkedId) {
                case R.id.rdbsalaried:
                    salarieddom.setVisibility(View.VISIBLE);
                    horscroll1.setVisibility(View.VISIBLE);
                    horscroll.setVisibility(View.INVISIBLE);
                    nonsalarieddom.setVisibility(View.INVISIBLE);
                    horscroll2.setVisibility(View.VISIBLE);
                    paymentmode.setVisibility(View.VISIBLE);
                    txtpaymentmode.setVisibility(View.VISIBLE);
                    break;
                case R.id.rdbnonsalaried:
                    nonsalarieddom.setVisibility(View.VISIBLE);
                    horscroll.setVisibility(View.VISIBLE);
                    horscroll1.setVisibility(View.INVISIBLE);
                    salarieddom.setVisibility(View.INVISIBLE);
                    horscroll2.setVisibility(View.INVISIBLE);
                    paymentmode.setVisibility(View.INVISIBLE);
                    txtpaymentmode.setVisibility(View.INVISIBLE);
                    break;
            }
        }
    });

    return view;
}

fragment3代码

public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    super.onCreateView(inflater, container, savedInstanceState);
    View view = inflater.inflate(R.layout.customer_financial_details_fragment, container, false);
    final SeekBar seekbarloanamt = (SeekBar) view.findViewById(R.id.sbloanamt);
    final EditText edtseekbarval = (EditText) view.findViewById(R.id.txtloanamt);

    edtseekbarval.addTextChangedListener(new TextWatcher() {
        public void afterTextChanged(Editable s) {

            if(s.length() >0){
                int i = Integer.parseInt(s.toString());
                if(i < 5000000) {
                    edtseekbarval.setSelection(edtseekbarval.getText().length());
                    seekbarloanamt.setProgress(i);
                }
            }
        }
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {}

        public void onTextChanged(CharSequence s, int start, int before, int count) {
        }
    });

    seekbarloanamt.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {
            // TODO Auto-generated method stub
        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {
        }

        @Override
        public void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {
            edtseekbarval.setText(String.valueOf(progress));
        }
    });
    return view;
}

0 个答案:

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