Java tutorial
/* * Copyright 2011-2012 the original author or authors. * * This program 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 program 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 program. If not, see <http://www.gnu.org/licenses/>. */ package piuk.blockchain.android.ui.dialogs; import java.lang.ref.WeakReference; import java.util.ArrayList; import java.util.List; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.graphics.Color; import android.graphics.drawable.ColorDrawable; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentTransaction; import android.text.InputType; import android.view.ContextThemeWrapper; import android.view.LayoutInflater; import android.view.View; import android.view.WindowManager; import android.view.View.OnClickListener; import android.view.inputmethod.InputMethodManager; import android.widget.Button; import android.widget.TextView; import android.view.Gravity; import android.widget.Toast; import piuk.blockchain.android.EventListeners; import piuk.blockchain.android.MyRemoteWallet; import piuk.blockchain.android.R; import piuk.blockchain.android.WalletApplication; import piuk.blockchain.android.ui.AbstractWalletActivity; import piuk.blockchain.android.SuccessCallback; /** * @author Andreas Schildbach */ public final class RequestPasswordDialog extends DialogFragment { private static final String FRAGMENT_TAG = RequestPasswordDialog.class.getName(); private SuccessCallback callback = null; private static List<WeakReference<RequestPasswordDialog>> fragmentRefs = new ArrayList<WeakReference<RequestPasswordDialog>>(); public static final int PasswordTypeMain = 1; public static final int PasswordTypeSecond = 2; public static final int PasswordTypeMainNoValidate = 3; public static final int PasswordTypePrivateKey = 4; private int passwordType; private static String passwordResult; public static String getPasswordResult() { String t = passwordResult; passwordResult = null; return t; } public static void hide() { for (WeakReference<RequestPasswordDialog> fragmentRef : fragmentRefs) { RequestPasswordDialog ref = fragmentRef.get(); if (ref != null) { try { ref.dismissAllowingStateLoss(); } catch (Exception e) { e.printStackTrace(); } } } } public static DialogFragment show(final FragmentManager fm, SuccessCallback callback, int passwordType) { final DialogFragment prev = (DialogFragment) fm.findFragmentById(R.layout.password_dialog); final FragmentTransaction ft = fm.beginTransaction(); if (prev != null) { prev.dismiss(); ft.remove(prev); } ft.addToBackStack(null); final RequestPasswordDialog newFragment = instance(); if (passwordType == PasswordTypeMain || passwordType == PasswordTypeMainNoValidate) newFragment.setCancelable(false); else newFragment.setCancelable(true); newFragment.show(ft, FRAGMENT_TAG); newFragment.passwordType = passwordType; newFragment.callback = callback; return newFragment; } private static RequestPasswordDialog instance() { final RequestPasswordDialog fragment = new RequestPasswordDialog(); fragmentRefs.add(new WeakReference<RequestPasswordDialog>(fragment)); return fragment; } @Override public void onCancel(DialogInterface dialog) { callback.onFail(); } @Override public Dialog onCreateDialog(final Bundle savedInstanceState) { final FragmentActivity activity = (FragmentActivity) getActivity(); final WalletApplication application = (WalletApplication) activity.getApplication(); final LayoutInflater inflater = LayoutInflater.from(activity); final Builder dialog = new AlertDialog.Builder(new ContextThemeWrapper(activity, R.style.Theme_Dialog)); if (passwordType == PasswordTypeSecond) dialog.setTitle(R.string.second_password_title); else if (passwordType == PasswordTypePrivateKey) dialog.setTitle(R.string.private_key_password_title); else dialog.setTitle(R.string.main_password_title); final View view = inflater.inflate(R.layout.password_dialog, null); dialog.setView(view); final TextView passwordField = (TextView) view.findViewById(R.id.password_field); final TextView titleTextView = (TextView) view.findViewById(R.id.title_text_view); if (passwordType == PasswordTypeSecond) titleTextView.setText(R.string.second_password_text); else if (passwordType == PasswordTypePrivateKey) titleTextView.setText(R.string.private_key_password_text); else titleTextView.setText(R.string.main_password_text); final Button continueButton = (Button) view.findViewById(R.id.password_continue); continueButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { try { if (passwordType == PasswordTypeSecond) { if (passwordField.getText().toString().trim() == null || passwordField.getText().toString().trim().length() < 1) return; MyRemoteWallet wallet = application.getRemoteWallet(); String secondPassword = passwordField.getText().toString().trim(); if (wallet == null) { dismiss(); callback.onFail(); } if (wallet.validateSecondPassword(secondPassword)) { wallet.setTemporySecondPassword(secondPassword); dismiss(); callback.onSuccess(); } else { Toast.makeText(activity.getApplication(), R.string.password_incorrect, Toast.LENGTH_SHORT).show(); } } else if (passwordType == PasswordTypeMain) { if (passwordField.getText().toString().trim() == null || passwordField.getText().toString().trim().length() < 1) { callback.onFail(); } String localWallet = application.readLocalWallet(); if (!application.decryptLocalWallet(localWallet, passwordField.getText().toString().trim())) { callback.onFail(); return; } String password = passwordField.getText().toString().trim(); application.checkIfWalletHasUpdatedAndFetchTransactions(password, new SuccessCallback() { @Override public void onSuccess() { dismiss(); callback.onSuccess(); } @Override public void onFail() { dismiss(); callback.onFail(); } }); } else { if (passwordField.getText().toString().trim() == null || passwordField.getText().toString().trim().length() < 1) { callback.onFail(); } String localWallet = application.readLocalWallet(); if (!application.decryptLocalWallet(localWallet, passwordField.getText().toString().trim())) { callback.onFail(); return; } passwordResult = passwordField.getText().toString().trim(); dismiss(); callback.onSuccess(); } } catch (Exception e) { e.printStackTrace(); } } }); Dialog d = dialog.create(); WindowManager.LayoutParams lp = new WindowManager.LayoutParams(); lp.dimAmount = 0; lp.width = WindowManager.LayoutParams.FILL_PARENT; lp.height = WindowManager.LayoutParams.WRAP_CONTENT; // lp.gravity = Gravity.BOTTOM; d.show(); d.getWindow().setAttributes(lp); d.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); return d; } }