-4
我正在構建一個帶有兩個選項卡的選項卡式活動（「加入美國」）的應用程序，一個用於登錄，另一個用於註冊。選項卡式活動，登錄並註冊片段
JoinUs.java
public class JoinUs extends AppCompatActivity {
/**
* The {@link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a
* {@link FragmentPagerAdapter} derivative, which will keep every
* loaded fragment in memory. If this becomes too memory intensive, it
* may be best to switch to a
* {@link android.support.v4.app.FragmentStatePagerAdapter}.
*/
private SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {@link ViewPager} that will host the section contents.
*/
private ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.join_us);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.addOnTabSelectedListener(new TabLayout.ViewPagerOnTabSelectedListener(mViewPager));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_join_us, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
public PlaceholderFragment() {
}
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (getArguments().getInt(ARG_SECTION_NUMBER) == 1) {
View rootView = inflater.inflate(R.layout.tab_signin, container, false);
return rootView;
}
else {
View rootView = inflater.inflate(R.layout.tab_signup, container, false);
return rootView;
}
//View rootView = inflater.inflate(R.layout.fragment_join_us, container, false);
//TextView textView = (TextView) rootView.findViewById(R.id.section_label);
//textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
//return rootView;
}
}
/**
* A {@link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
return PlaceholderFragment.newInstance(position + 1);
}
@Override
public int getCount() {
// Show 3 total pages.
return 2;
}
}
tabSignUp.java
public class tabSignUp extends Fragment {
DatabaseHelper helper = new DatabaseHelper(getContext());
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.tab_signup, container, false);
return rootView;
}
public void onSignUpClick(View v)
{
if (v.getId() == R.id.signmeup) {
EditText name = getActivity().findViewById(R.id.fname);
EditText email = getActivity().findViewById(R.id.email);
EditText username = getActivity().findViewById(R.id.username);
EditText pass = getActivity().findViewById(R.id.password);
EditText pass2 = getActivity().findViewById(R.id.confpassword);
String nameStr = name.getText().toString();
String emailStr = email.getText().toString();
String usernameStr = username.getText().toString();
String passStr = pass.getText().toString();
String pass2Str = pass2.getText().toString();
if (!passStr.equals(pass2Str)) {
Toast.makeText(getActivity(), "Passwords don't match", Toast.LENGTH_SHORT).show();
} else {
//insert details in database
Contact c = new Contact();
c.setName(nameStr);
c.setEmail(emailStr);
c.setUsername(usernameStr);
c.setPass(passStr);
helper.insertContact(c);
}
}
}
}
tabSignIn.java
public class tabSignIn extends Fragment {
DatabaseHelper helper = new DatabaseHelper(getContext());
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.tab_signin, container, false);
return rootView;
}
public void onButtonClick(View v)
{
if (v.getId() == R.id.signmein){
EditText username = (EditText) getActivity().findViewById(R.id.usernamein);
String str = username.getText().toString();
EditText passwrd = getActivity().findViewById(R.id.passwordin);
String pass = passwrd.getText().toString();
String password = helper.searchPass(str);
if (pass.equals(password))
{
//take me to homepage
Intent i = new Intent (getActivity(),MainActivity.class);
i.putExtra("Username",str);
startActivity(i);
}
else
{
Toast.makeText(getActivity(),"Username and password don't match",Toast.LENGTH_SHORT).show();
}
}
}
}
眼下米y代碼不會標記任何錯誤，但是一旦我運行它，請填寫我的詳細信息並按下注冊或登錄按鈕，沒有任何反應。請我需要某人解釋原因。先謝謝你。
'什麼都沒有發生'而且會發生什麼？ – sudo