title: transition from edittext to button
body: <p>I need transition from edittext to button. When I writing password in edittext, "zaloguj" come up -> <a href="https://zapodaj.net/1166d338c3812.png.html" rel="nofollow noreferrer">https://zapodaj.net/1166d338c3812.png.html</a> but when I click it then application shut off. When I clicked button or 'tab' and next 'enter' then worked properly. But I need system keyboard support</p>
  
  <pre><code>import static android.Manifest.permission.READ_CONTACTS;
  
  /**
   * A login screen that offers login via NIU/password.
   */
  public class LoginActivity extends AppCompatActivity implements LoaderCallbacks&lt;Cursor&gt; {
  
      /**
       * Id to identity READ_CONTACTS permission request.
       */
      private static final int REQUEST_READ_CONTACTS = 0;
  
      /**
       * A dummy authentication store containing known user names and passwords.
       * TODO: remove after connecting to a real authentication system.
       */
      private static final String[] DUMMY_CREDENTIALS = new String[]{
              "95254:hello"
      };
      /**
       * Keep track of the login task to ensure we can cancel it if requested.
       */
      private UserLoginTask mAuthTask = null;
  
      // UI references.
      private AutoCompleteTextView mNIUView;
      private EditText mPasswordView;
      private View mProgressView;
      private View mLoginFormView;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_login);
          // Set up the login form.
          mNIUView = (AutoCompleteTextView) findViewById(R.id.NIU);
          populateAutoComplete();
  
  
          mPasswordView = (EditText) findViewById(R.id.password);
          mPasswordView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
              @Override
              public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) {
                  if (id == EditorInfo.IME_ACTION_DONE || id == EditorInfo.IME_NULL ) {
                      attemptLogin();
                      return true;
                  }
  
                  return false;
              }
          });
  
  
          final Button mNIUSignInButton = (Button) findViewById(R.id.NIU_sign_in_button);
          mNIUSignInButton.setOnClickListener(new OnClickListener() {
              @Override
              public void onClick(View view) {
                  attemptLogin();
                  if (checkLog()) {
                      Intent intent = new Intent(LoginActivity.this, MenuActivity.class);
                      startActivity(intent);
                  }else if(checkNIU()){
                      mPasswordView.setText("");
                  }else{
                      mNIUView.setText("");
                      mPasswordView.setText("");
                  }
              }
          });
  
          mLoginFormView = findViewById(R.id.login_form);
          mProgressView = findViewById(R.id.login_progress);
      }
  
      private void populateAutoComplete() {
          if (!mayRequestContacts()) {
              return;
          }
          getLoaderManager().initLoader(0, null, this);
      }
  
      private boolean mayRequestContacts() {
          if (Build.VERSION.SDK_INT &lt; Build.VERSION_CODES.M) {
              return true;
          }
          if (checkSelfPermission(READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
              return true;
          }
          if (shouldShowRequestPermissionRationale(READ_CONTACTS)) {
              Snackbar.make(mNIUView, R.string.permission_rationale, Snackbar.LENGTH_INDEFINITE)
                      .setAction(android.R.string.ok, new View.OnClickListener() {
                          @Override
                          @TargetApi(Build.VERSION_CODES.M)
                          public void onClick(View v) {
                              requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
                          }
                      });
          } else {
              requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
          }
          return false;
      }
  
      /**
       * Callback received when a permissions request has been completed.
       */
      @Override
      public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
                                             @NonNull int[] grantResults) {
          if (requestCode == REQUEST_READ_CONTACTS) {
              if (grantResults.length == 1 &amp;&amp; grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                  populateAutoComplete();
              }
          }
      }
  
  
      /**
       * Attempts to sign in or register the account specified by the login form.
       * If there are form errors (invalid NIU, missing fields, etc.), the
       * errors are presented and no actual login attempt is made.
       */
      private void attemptLogin() {
          if (mAuthTask != null) {
              return;
          }
  
          // Reset errors.
          mNIUView.setError(null);
          mPasswordView.setError(null);
  
          // Store values at the time of the login attempt.
          String NIU = mNIUView.getText().toString();
          String password = mPasswordView.getText().toString();
  
          boolean cancel = false;
          View focusView = null;
  
          if(!exist()){
              mNIUView.setError(getString(R.string.error_invalid_all));
              mPasswordView.setError(getString(R.string.error_invalid_all));
              focusView = mNIUView;
              cancel = true;
          }
  
          // Check for a valid NIU
          if (TextUtils.isEmpty(NIU)) {
              mNIUView.setError(getString(R.string.error_field_required));
              focusView = mNIUView;
              cancel = true;
          } else if(!isNIUValid(NIU)){
              mNIUView.setError(getString(R.string.error_invalid_NIU));
              focusView = mNIUView;
              cancel = true;
          } else if (!checkNIU() &amp;&amp; checkPassword()) {
              mNIUView.setError(getString(R.string.error_invalid_one));
              mPasswordView.setError(getString(R.string.error_invalid_one));
              focusView = mNIUView;
              cancel = true;
          }
  
          if(TextUtils.isEmpty(password)){
              mPasswordView.setError(getString(R.string.error_field_required));
              focusView = mPasswordView;
              cancel = true;
          }else if(!checkPassword() &amp;&amp; checkNIU()){
              mNIUView.setError(getString(R.string.error_invalid_one));
              mPasswordView.setError(getString(R.string.error_invalid_one));
              focusView = mPasswordView;
              cancel = true;
          }
  
          if (cancel) {
              // There was an error; don't attempt login and focus the first
              // form field with an error.
              focusView.requestFocus();
          } else {
              // Show a progress spinner, and kick off a background task to
              // perform the user login attempt.
              showProgress(true);
              mAuthTask = new UserLoginTask(NIU, password);
              mAuthTask.execute((Void) null);
          }
          mAuthTask = null;
      }
      private boolean isNIUValid(String NIU) {
          try {
              double d = Double.parseDouble(NIU);
          }catch(NumberFormatException nfe){
              return false;
          }
          return true;
      }
  
      private boolean exist(){
          if(checkLog()) {
              return true;
          }
          return false;
      }
  
      /**
       * Shows the progress UI and hides the login form.
       */
      @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
      private void showProgress(final boolean show) {
          // On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
          // for very easy animations. If available, use these APIs to fade-in
          // the progress spinner.
          if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.HONEYCOMB_MR2) {
              int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
  
              mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
              mLoginFormView.animate().setDuration(shortAnimTime).alpha(
                      show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
                  @Override
                  public void onAnimationEnd(Animator animation) {
                      mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
                  }
              });
  
              mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
              mProgressView.animate().setDuration(shortAnimTime).alpha(
                      show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
                  @Override
                  public void onAnimationEnd(Animator animation) {
                      mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
                  }
              });
          } else {
              // The ViewPropertyAnimator APIs are not available, so simply show
              // and hide the relevant UI components.
              mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
              mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
          }
      }
  
      @Override
      public Loader&lt;Cursor&gt; onCreateLoader(int i, Bundle bundle) {
          return new CursorLoader(this,
                  // Retrieve data rows for the device user's 'profile' contact.
                  Uri.withAppendedPath(ContactsContract.Profile.CONTENT_URI,
                          ContactsContract.Contacts.Data.CONTENT_DIRECTORY), ProfileQuery.PROJECTION,
  
                  // Select only email addresses.
                  ContactsContract.Contacts.Data.MIMETYPE +
                          " = ?", new String[]{ContactsContract.CommonDataKinds.Email
                  .CONTENT_ITEM_TYPE},
  
                  // Show primary email addresses first. Note that there won't be
                  // a primary email address if the user hasn't specified one.
                  ContactsContract.Contacts.Data.IS_PRIMARY + " DESC");
      }
  
      @Override
      public void onLoadFinished(Loader&lt;Cursor&gt; cursorLoader, Cursor cursor) {
          List&lt;String&gt; NIUs = new ArrayList&lt;&gt;();
          cursor.moveToFirst();
          while (!cursor.isAfterLast()) {
              NIUs.add(cursor.getString(ProfileQuery.ADDRESS));
              cursor.moveToNext();
          }
          addEmailsToAutoComplete(NIUs);
      }
  
      @Override
      public void onLoaderReset(Loader&lt;Cursor&gt; cursorLoader) {}
  
  
  
      private interface ProfileQuery {
          String[] PROJECTION = {
                  ContactsContract.CommonDataKinds.Email.ADDRESS,
                  ContactsContract.CommonDataKinds.Email.IS_PRIMARY,
          };
  
          int ADDRESS = 0;
          int IS_PRIMARY = 1;
      }
  
  
      private void addEmailsToAutoComplete(List&lt;String&gt; NIUAddressCollection) {
          //Create adapter to tell the AutoCompleteTextView what to show in its dropdown list.
          ArrayAdapter&lt;String&gt; adapter =
                  new ArrayAdapter&lt;&gt;(LoginActivity.this,
                          android.R.layout.simple_dropdown_item_1line, NIUAddressCollection);
  
          mNIUView.setAdapter(adapter);
      }
  
      private boolean checkLog(){
          String email = mNIUView.getText().toString();
          String password = mPasswordView.getText().toString();
          for (String credential : DUMMY_CREDENTIALS) {
              String[] pieces = credential.split(":");
              if (pieces[0].equals(email)) {
                  // Account exists, return true if the password matches.
                  return pieces[1].equals(password);
              }
          }
          return false;
      }
  
      private boolean checkNIU(){
          String email = mNIUView.getText().toString();
          for (String credential : DUMMY_CREDENTIALS) {
              String[] pieces = credential.split(":");
              if (pieces[0].equals(email))
                  return true;
          }
          return false;
      }
  
      private boolean checkPassword(){
          String password = mPasswordView.getText().toString();
          for (String credential : DUMMY_CREDENTIALS) {
              String[] pieces = credential.split(":");
              if (pieces[1].equals(password))
                  return true;
          }
          return false;
      }
  
  
      /**
       * Represents an asynchronous login/registration task used to authenticate
       * the user.
       */
      public class UserLoginTask extends AsyncTask&lt;Void, Void, Boolean&gt; {
  
          private final String mNIU;
          private final String mPassword;
  
          UserLoginTask(String NIU, String password) {
              mNIU = NIU;
              mPassword = password;
          }
  
          @Override
          protected Boolean doInBackground(Void... params) {
              // TODO: attempt authentication against a network service.
              try {
                  // Simulate network access.
                  Thread.sleep(2000);
              } catch (InterruptedException e) {
                  return false;
              }
  
              for (String credential : DUMMY_CREDENTIALS) {
                  String[] pieces = credential.split(":");
                  if (pieces[0].equals(mNIU)) {
                      // Account exists, return true if the password matches.
                      return pieces[1].equals(mPassword);
                  }
              }
  
              // TODO: register the new account here.
              return true;
          }
  
          @Override
          protected void onPostExecute(final Boolean success) {
              mAuthTask = null;
              showProgress(false);
  
              if (success) {
                  finish();
              } else {
                  mPasswordView.setError(getString(R.string.error_invalid_one));
                  mPasswordView.requestFocus();
              }
          }
  
          @Override
          protected void onCancelled() {
              mAuthTask = null;
              showProgress(false);
          }
      }
  }
  </code></pre>
  
  <p>and my .xml -></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:gravity="center_horizontal"
      android:orientation="vertical"
      android:paddingBottom="@dimen/activity_vertical_margin"
      android:paddingLeft="@dimen/activity_horizontal_margin"
      android:paddingRight="@dimen/activity_horizontal_margin"
      android:paddingTop="@dimen/activity_vertical_margin"
      tools:context=".LoginActivity"&gt;
  
      &lt;!-- Login progress --&gt;
      &lt;ProgressBar
          android:id="@+id/login_progress"
          style="?android:attr/progressBarStyleLarge"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_marginBottom="8dp"
          android:visibility="gone"/&gt;
  
      &lt;ImageView
          android:id="@+id/imageView"
          android:layout_width="257dp"
          android:layout_height="127dp"
          app:srcCompat="@drawable/pk" /&gt;
  
      &lt;TextView
          android:id="@+id/textView"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:text="@string/name_pk"
          android:textSize="30dp"
          android:gravity="center_horizontal"
          android:textColor="@color/colorPrimaryDark"/&gt;
  
      &lt;TextView
          android:id="@+id/textView2"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:text="@string/name_of_pk"
          android:textSize="15dp"
          android:gravity="center_horizontal"
          android:textColor="@color/colorPrimaryDark"
          /&gt;
  
      &lt;ScrollView
          android:id="@+id/login_form"
          android:layout_width="match_parent"
          android:layout_height="match_parent"&gt;
  
          &lt;LinearLayout
              android:id="@+id/NIU_login_form"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:orientation="vertical"&gt;
  
              &lt;android.support.design.widget.TextInputLayout
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"&gt;
  
                  &lt;AutoCompleteTextView
                      android:id="@+id/NIU"
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:hint="@string/prompt_NIU"
                      android:inputType="textEmailAddress"
                      android:imeOptions="actionNext"
                      android:maxLines="1"
                      android:singleLine="true" /&gt;
  
              &lt;/android.support.design.widget.TextInputLayout&gt;
  
              &lt;android.support.design.widget.TextInputLayout
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"&gt;
  
                  &lt;EditText
                      android:id="@+id/password"
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:hint="@string/prompt_password"
                      android:imeActionId="6"
                      android:imeActionLabel="@string/action_sign_in"
                      android:inputType="textPassword"
                      android:maxLines="1"
                      android:singleLine="true"
                      /&gt;
  
              &lt;/android.support.design.widget.TextInputLayout&gt;
  
              &lt;Button
                  android:id="@+id/NIU_sign_in_button"
                  style="?android:textAppearanceSmall"
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:layout_marginTop="16dp"
                  android:text="@string/action_sign_in"
                  android:textSize="25dp"
                  android:textStyle="bold"
                  android:background="@color/colorPrimaryDark"
                  android:textColor="@color/white"/&gt;
  
          &lt;/LinearLayout&gt;
      &lt;/ScrollView&gt;
  &lt;/LinearLayout&gt;
  </code></pre>