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私はAndroidアプリを作成しています。 2つのアクティビティが含まれています。 1つはログイン用、もう1つは登録用です。両方とも別々のタブにあり、スワイプでスムーズに切り替えることができます。アンドロイドのボタンをクリックしてフラグメントを切り替えるにはどうすればいいですか？
ログインが必要な場合は、両方のタブの下部にボタンがあります。ボタンをクリックすると登録タブに移動し、ログインタブに戻るには別のボタンに移動する必要があります。
どうすればonclickリスナーイベントを使用して実装できますか？
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() {
}
private static final String lTAG = RegisterActivity.class.getSimpleName();
private Button btnLogin;
private Button btnLinkToRegister;
private EditText linputEmail;
private EditText linputPassword;
private ProgressDialog lpDialog;
private SessionManager lsession;
private SQLiteHandler ldb;
private static final String rTAG = RegisterActivity.class.getSimpleName();
private Button btnRegister;
private Button btnLinkToLogin;
private EditText rinputFullName;
private EditText rinputEmail;
private EditText rinputPassword;
private ProgressDialog rpDialog;
private SessionManager rsession;
private SQLiteHandler rdb;
public static Context context;
/**
* 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.activity_login, container, false);
linputEmail = (EditText) rootView.findViewById(R.id.email);
linputPassword = (EditText) rootView.findViewById(R.id.password);
btnLogin = (Button) rootView.findViewById(R.id.btnLogin);
btnLinkToRegister = (Button) rootView.findViewById(R.id.btnLinkToRegisterScreen);
// Progress dialog
lpDialog = new ProgressDialog(getActivity());
lpDialog.setCancelable(false);
// SQLite database handler
context=getContext();
ldb = new SQLiteHandler(context);
// Session manager
lsession = new SessionManager(context);
// Check if user is already logged in or not
if (lsession.isLoggedIn()) {
// User is already logged in. Take him to main activity
Intent intent = new Intent(context, MainActivity.class);
startActivity(intent);
getActivity().finish();
}
// Login button Click Event
btnLogin.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String email = linputEmail.getText().toString().trim();
String password = linputPassword.getText().toString().trim();
// Check for empty data in the form
if (!email.isEmpty() && !password.isEmpty()) {
// login user
checkLogin(email, password);
} else {
// Prompt user to enter credentials
Toast.makeText(context,
"Please enter the credentials!", Toast.LENGTH_LONG)
.show();
}
}
});
// Link to Register Screen
btnLinkToRegister.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent i = new Intent(context,
RegisterActivity.class);
startActivity(i);
getActivity().finish();
}
});
return rootView;
}
else if (getArguments().getInt(ARG_SECTION_NUMBER)==2){
View rootView = inflater.inflate(R.layout.activity_register, container, false);
rinputFullName = (EditText) rootView.findViewById(R.id.name);
rinputEmail = (EditText) rootView.findViewById(R.id.email);
rinputPassword = (EditText) rootView.findViewById(R.id.password);
btnRegister = (Button) rootView.findViewById(R.id.btnRegister);
btnLinkToLogin = (Button) rootView.findViewById(R.id.btnLinkToLoginScreen);
// Progress dialog
rpDialog = new ProgressDialog(getActivity());
rpDialog.setCancelable(false);
// Session manager
context=getContext();
rsession = new SessionManager(context);
// SQLite database handler
rdb = new SQLiteHandler(context);
// Check if user is already logged in or not
if (rsession.isLoggedIn()) {
// User is already logged in. Take him to main activity
Intent intent = new Intent(context,
MainActivity.class);
startActivity(intent);
getActivity().finish();
}
// Register Button Click event
btnRegister.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String name = rinputFullName.getText().toString().trim();
String email = rinputEmail.getText().toString().trim();
String password = rinputPassword.getText().toString().trim();
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
if(isEmailValid(email)) {
registerUser(name, email, password);
}else{
Toast.makeText(context,
"Please enter valid email!", Toast.LENGTH_LONG)
.show();
}
} else {
Toast.makeText(context,
"Please enter your details!", Toast.LENGTH_LONG)
.show();
}
}
});
// Link to Login Screen
btnLinkToLogin.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent i = new Intent(context,
LoginActivity.class);
startActivity(i);
getActivity().finish();
}
});
return rootView;
}
return null;
}
``
/**
* 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;
}
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "LOGIN";
case 1:
return "REGISTER";
}
return null;
}
}
でのボタンのクリック時
あなたはとても簡単だろう、それviewpager使用して、私があまりにもコードをお持ちの場合 – HsRaja