Java tutorial
/** * Copyright (C) 2013- Iordan Iordanov * * This is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this software; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, * USA. */ package com.iiordanov.bVNC.dialogs; import com.iiordanov.bVNC.R; import android.content.DialogInterface; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.text.Editable; import android.text.TextWatcher; import android.text.method.PasswordTransformationMethod; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class GetTextFragment extends DialogFragment { public static String TAG = "GetTextFragment"; public static final int Plaintext = 1; public static final int Password = 2; public static final int MatchingPasswordTwice = 3; public interface OnFragmentDismissedListener { public void onTextObtained(String obtainedString, boolean dialogCancelled); } private class TextMatcher implements TextWatcher { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { error.setVisibility(View.GONE); } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void afterTextChanged(Editable arg0) { } } private boolean wasCancelled = false; private TextView message; private TextView error; private EditText textBox; private EditText textBox2; private Button buttonConfirm; private Button buttonCancel; private OnFragmentDismissedListener dismissalListener; private String title; private int dialogType = 0; private int messageNum = 0; private int errorNum = 0; public GetTextFragment(OnFragmentDismissedListener dismissalListener) { this.dismissalListener = dismissalListener; } public static GetTextFragment newInstance(String title, OnFragmentDismissedListener dismissalListener, int dialogType, int messageNum, int errorNum) { android.util.Log.i(TAG, "newInstance called"); GetTextFragment f = new GetTextFragment(dismissalListener); Bundle args = new Bundle(); args.putString("title", title); args.putInt("dialogType", dialogType); args.putInt("messageNum", messageNum); args.putInt("errorNum", errorNum); f.setArguments(args); f.setRetainInstance(false); return f; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); android.util.Log.i(TAG, "onCreate called"); title = getArguments().getString("title"); dialogType = getArguments().getInt("dialogType"); messageNum = getArguments().getInt("messageNum"); errorNum = getArguments().getInt("errorNum"); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { android.util.Log.i(TAG, "onCreateView called"); wasCancelled = false; getDialog().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); // Set title for this dialog getDialog().setTitle(title); View v = null; switch (dialogType) { case Plaintext: v = inflater.inflate(R.layout.get_text, container, false); textBox = (EditText) v.findViewById(R.id.textBox); buttonConfirm = (Button) v.findViewById(R.id.buttonConfirm); buttonCancel = (Button) v.findViewById(R.id.buttonCancel); dismissOnCancel(buttonCancel); dismissOnConfirm(buttonConfirm); break; case Password: v = inflater.inflate(R.layout.get_text, container, false); textBox = (EditText) v.findViewById(R.id.textBox); hideText(textBox); buttonConfirm = (Button) v.findViewById(R.id.buttonConfirm); buttonCancel = (Button) v.findViewById(R.id.buttonCancel); dismissOnCancel(buttonCancel); dismissOnConfirm(buttonConfirm); break; case MatchingPasswordTwice: v = inflater.inflate(R.layout.get_text_twice, container, false); error = (TextView) v.findViewById(R.id.error); textBox = (EditText) v.findViewById(R.id.textBox); textBox2 = (EditText) v.findViewById(R.id.textBox2); hideText(textBox); hideText(textBox2); buttonConfirm = (Button) v.findViewById(R.id.buttonConfirm); buttonCancel = (Button) v.findViewById(R.id.buttonCancel); dismissOnCancel(buttonCancel); ensureMatchingDismissOnConfirm(buttonConfirm, textBox, textBox2, error); break; default: getDialog().dismiss(); break; } message = (TextView) v.findViewById(R.id.message); message.setText(messageNum); this.setRetainInstance(true); return v; } private void hideText(EditText textBox) { textBox.setTransformationMethod(new PasswordTransformationMethod()); } private void dismissOnCancel(Button cancelButton) { cancelButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { wasCancelled = true; getDialog().dismiss(); } }); } private void dismissOnConfirm(Button buttonConfirm) { buttonConfirm.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { getDialog().dismiss(); } }); } private void ensureMatchingDismissOnConfirm(Button buttonConfirm, final EditText textBox1, final EditText textBox2, final TextView error) { buttonConfirm.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (textBox1.getText().toString().equals(textBox2.getText().toString())) { getDialog().dismiss(); } else { error.setText(errorNum); error.setVisibility(View.VISIBLE); error.invalidate(); } } }); textBox1.addTextChangedListener(new TextMatcher()); textBox2.addTextChangedListener(new TextMatcher()); } @Override public void onDismiss(DialogInterface dialog) { android.util.Log.i(TAG, "onDismiss called: Sending data back to Activity"); String result = textBox.getText().toString(); if (wasCancelled || result.equals("")) { wasCancelled = true; result = ""; } if (textBox != null) { textBox.setText(""); } if (textBox2 != null) { textBox2.setText(""); } dismissalListener.onTextObtained(result, wasCancelled); } @Override public void onDestroyView() { if (getDialog() != null && getRetainInstance()) getDialog().setOnDismissListener(null); super.onDestroyView(); } }