m2049r
7 years ago
parent
e0439a1359
commit
93025c5e1b
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/*
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* Copyright (c) 2017 m2049r
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.m2049r.xmrwallet;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.text.Editable;
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import android.text.InputType;
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import android.text.TextWatcher;
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import android.view.KeyEvent;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.inputmethod.EditorInfo;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.ImageView;
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import android.widget.TextView;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.EncodeHintType;
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import com.google.zxing.WriterException;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.qrcode.QRCodeWriter;
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import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
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import com.m2049r.xmrwallet.model.Wallet;
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import com.m2049r.xmrwallet.util.Helper;
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import java.util.HashMap;
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import java.util.Map;
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public class ReceiveFragment extends Fragment {
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static final String TAG = "ReceiveFragment";
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TextView tvAddress;
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EditText etPaymentId;
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EditText etAmount;
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Button bPaymentId;
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Button bGenerate;
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ImageView qrCode;
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.receive_fragment, container, false);
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tvAddress = (TextView) view.findViewById(R.id.tvAddress);
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etPaymentId = (EditText) view.findViewById(R.id.etPaymentId);
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etAmount = (EditText) view.findViewById(R.id.etAmount);
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bPaymentId = (Button) view.findViewById(R.id.bPaymentId);
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qrCode = (ImageView) view.findViewById(R.id.qrCode);
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bGenerate = (Button) view.findViewById(R.id.bGenerate);
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etPaymentId.setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
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Helper.showKeyboard(getActivity());
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etPaymentId.requestFocus();
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etPaymentId.setOnEditorActionListener(new TextView.OnEditorActionListener() {
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public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
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if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_NEXT)) {
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if (paymentIdOk()) {
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etAmount.requestFocus();
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} // otherwise ignore
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return true;
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}
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return false;
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}
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});
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etPaymentId.addTextChangedListener(new TextWatcher() {
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@Override
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public void afterTextChanged(Editable editable) {
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qrCode.setImageBitmap(null);
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if (paymentIdOk() && amountOk()) {
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bGenerate.setEnabled(true);
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} else {
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bGenerate.setEnabled(false);
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}
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}
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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}
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) {
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}
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});
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etAmount.setOnEditorActionListener(new TextView.OnEditorActionListener() {
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public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
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if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_NEXT)) {
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if (paymentIdOk() && amountOk()) {
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Helper.hideKeyboard(getActivity());
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generateQr();
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}
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return true;
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}
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return false;
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}
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});
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etAmount.addTextChangedListener(new TextWatcher() {
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@Override
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public void afterTextChanged(Editable editable) {
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qrCode.setImageBitmap(null);
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if (paymentIdOk() && amountOk()) {
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bGenerate.setEnabled(true);
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} else {
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bGenerate.setEnabled(false);
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}
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}
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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}
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) {
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}
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});
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bPaymentId.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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etPaymentId.setText((Wallet.generatePaymentId()));
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etPaymentId.setSelection(etPaymentId.getText().length());
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if (paymentIdOk() && amountOk()) {
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generateQr();
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}
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}
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});
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bGenerate.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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if (paymentIdOk() && amountOk()) {
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Helper.hideKeyboard(getActivity());
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generateQr();
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}
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}
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});
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Bundle b = getArguments();
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String address = b.getString("address", "");
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tvAddress.setText(address);
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return view;
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}
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private boolean amountOk() {
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String amountEntry = etAmount.getText().toString();
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if (amountEntry.isEmpty()) return true;
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long amount = Wallet.getAmountFromString(amountEntry);
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return (amount > 0);
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}
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private boolean paymentIdOk() {
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String paymentId = etPaymentId.getText().toString();
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return paymentId.isEmpty() || Wallet.isPaymentIdValid(paymentId);
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}
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private void generateQr() {
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String address = tvAddress.getText().toString();
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String paymentId = etPaymentId.getText().toString();
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String enteredAmount = etAmount.getText().toString();
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// that's a lot of converting ...
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String amount = (enteredAmount.isEmpty()?enteredAmount:Helper.getDisplayAmount(Wallet.getAmountFromString(enteredAmount)));
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StringBuffer sb = new StringBuffer();
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sb.append(ScannerFragment.QR_SCHEME).append(address);
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boolean first = true;
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if (!paymentId.isEmpty()) {
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if (first) {
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sb.append("?");
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first = false;
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}
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sb.append(ScannerFragment.QR_PAYMENTID).append('=').append(paymentId);
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}
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if (!amount.isEmpty()) {
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if (first) {
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sb.append("?");
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} else {
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sb.append("&");
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}
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sb.append(ScannerFragment.QR_AMOUNT).append('=').append(amount);
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}
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String text = sb.toString();
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Bitmap qr = generate(text, 500, 500);
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if (qr != null) {
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qrCode.setImageBitmap(qr);
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}
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}
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public Bitmap generate(String text, int width, int height) {
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Map<EncodeHintType, Object> hints = new HashMap<>();
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hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
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try {
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BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, width, height, hints);
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int[] pixels = new int[width * height];
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for (int i = 0; i < height; i++) {
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for (int j = 0; j < width; j++) {
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if (bitMatrix.get(j, i)) {
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pixels[i * width + j] = 0x00000000;
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} else {
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pixels[i * height + j] = 0xffffffff;
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}
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}
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}
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Bitmap bitmap = Bitmap.createBitmap(pixels, 0, width, width, height, Bitmap.Config.RGB_565);
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bitmap = addLogo(bitmap);
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return bitmap;
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} catch (WriterException e) {
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e.printStackTrace();
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}
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return null;
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}
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private Bitmap addLogo(Bitmap qrBitmap) {
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Bitmap logo = getMoneroLogo();
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int qrWidth = qrBitmap.getWidth();
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int qrHeight = qrBitmap.getHeight();
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int logoWidth = logo.getWidth();
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int logoHeight = logo.getHeight();
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Bitmap logoBitmap = Bitmap.createBitmap(qrWidth, qrHeight, Bitmap.Config.ARGB_8888);
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Canvas canvas = new Canvas(logoBitmap);
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canvas.drawBitmap(qrBitmap, 0, 0, null);
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canvas.save(Canvas.ALL_SAVE_FLAG);
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// figure out how to scale the logo
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float scaleSize = 1.0f;
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while ((logoWidth / scaleSize) > (qrWidth / 5) || (logoHeight / scaleSize) > (qrHeight / 5)) {
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scaleSize *= 2;
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}
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float sx = 1.0f / scaleSize;
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canvas.scale(sx, sx, qrWidth / 2, qrHeight / 2);
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canvas.drawBitmap(logo, (qrWidth - logoWidth) / 2, (qrHeight - logoHeight) / 2, null);
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canvas.restore();
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return logoBitmap;
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}
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private Bitmap logo = null;
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private Bitmap getMoneroLogo() {
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if (logo == null) {
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logo = Helper.getBitmap(getContext(), R.drawable.ic_monero_qr);
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}
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return logo;
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}
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}
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@ -0,0 +1,20 @@
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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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android:width="32dp"
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android:height="32dp"
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android:viewportHeight="75.0"
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android:viewportWidth="75.0">
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<path
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android:fillColor="#ffffff"
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android:pathData=" M 37.3, 37.3
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m -36.9, 0
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a 36.9,36.9 0 1,0 73.8,0
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a 36.9,36.9 0 1,0 -73.8,0" />
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<path
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android:fillColor="#ff6600"
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android:pathData="m 37.3,0.35329395 c -20.377,0 -36.903,16.524 -36.903,36.902 0,4.074 0.66,7.992 1.88,11.657 l 11.036,0 0,-31.049 23.987,23.987 23.987,-23.987 0,31.049 11.037,0 c 1.22,-3.665 1.88,-7.583 1.88,-11.657 0,-20.378 -16.526,-36.902 -36.904,-36.902" />
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<path
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android:fillColor="#4c4c4c"
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android:pathData="m 21.3164,36.895994 0,19.537 -15.55,0 c 6.478,10.628 18.178,17.726 31.533,17.726 13.355,0 25.056,-7.098 31.533,-17.726 l -15.549,0 0,-19.537 -15.984,15.984 z" />
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</vector>
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@ -0,0 +1,20 @@
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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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android:width="50dp"
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android:height="50dp"
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android:viewportHeight="75.0"
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android:viewportWidth="75.0">
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<path
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android:fillColor="#ffffff"
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android:pathData=" M 37.3, 37.3
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m -36.9, 0
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a 36.9,36.9 0 1,0 73.8,0
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a 36.9,36.9 0 1,0 -73.8,0" />
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<path
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android:fillColor="#ff6600"
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android:pathData="m 37.3,0.35329395 c -20.377,0 -36.903,16.524 -36.903,36.902 0,4.074 0.66,7.992 1.88,11.657 l 11.036,0 0,-31.049 23.987,23.987 23.987,-23.987 0,31.049 11.037,0 c 1.22,-3.665 1.88,-7.583 1.88,-11.657 0,-20.378 -16.526,-36.902 -36.904,-36.902" />
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<path
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android:fillColor="#4c4c4c"
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android:pathData="m 21.3164,36.895994 0,19.537 -15.55,0 c 6.478,10.628 18.178,17.726 31.533,17.726 13.355,0 25.056,-7.098 31.533,-17.726 l -15.549,0 0,-19.537 -15.984,15.984 z" />
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</vector>
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Before Width: | Height: | Size: 1.7 KiB |
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Before Width: | Height: | Size: 8.8 KiB |
@ -0,0 +1,107 @@
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical">
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<TextView
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android:id="@+id/tvAddress"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_marginBottom="4sp"
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android:layout_marginTop="4sp"
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android:hint="@string/send_address_hint"
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android:textAlignment="center"
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android:textSize="16sp" />
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<LinearLayout
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_marginBottom="4sp"
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android:layout_marginTop="4sp"
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android:orientation="horizontal"
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android:weightSum="10">
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<TextView
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android:layout_width="0sp"
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android:layout_height="wrap_content"
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android:layout_marginRight="8sp"
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android:layout_weight="3"
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android:text="@string/receive_paymentid_hint"
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android:textAlignment="textEnd"
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android:textColor="@color/colorAccent"
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android:textSize="16sp" />
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<EditText
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android:id="@+id/etPaymentId"
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android:layout_width="0sp"
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android:layout_height="wrap_content"
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android:layout_weight="5"
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android:hint="@string/send_paymentid_hint"
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android:imeOptions="actionNext"
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android:inputType="textMultiLine"
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android:textAlignment="textStart"
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android:textSize="16sp" />
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<Button
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android:id="@+id/bPaymentId"
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android:layout_width="0sp"
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android:layout_height="wrap_content"
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android:layout_gravity="center"
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android:layout_weight="2"
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android:background="@color/colorPrimary"
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android:enabled="true"
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android:minHeight="36sp"
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android:text="@string/receive_paymentid_button"
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android:textSize="12sp" />
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</LinearLayout>
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<LinearLayout
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:orientation="horizontal"
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android:layout_marginBottom="4sp"
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android:layout_marginTop="4sp"
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android:weightSum="10">
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<TextView
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android:layout_width="0sp"
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android:layout_height="wrap_content"
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android:layout_marginRight="8sp"
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android:layout_weight="3"
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android:text="@string/send_amount_label"
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android:textAlignment="textEnd"
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android:textColor="@color/colorAccent"
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android:textSize="24sp" />
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<EditText
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android:id="@+id/etAmount"
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android:layout_width="0sp"
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android:layout_height="wrap_content"
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android:hint="@string/send_amount_hint"
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android:imeOptions="actionNext"
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android:inputType="numberDecimal"
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android:layout_weight="7"
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android:textAlignment="textStart"
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android:textSize="24sp" />
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</LinearLayout>
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<Button
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android:id="@+id/bGenerate"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_marginBottom="4sp"
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android:layout_marginTop="4sp"
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android:minHeight="36sp"
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android:background="@color/colorPrimary"
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android:text="@string/receive_generate_hint" />
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<ImageView
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android:id="@+id/qrCode"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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android:layout_margin="16sp"
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android:adjustViewBounds="true"
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android:src="@drawable/ic_monero_32dp" />
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</LinearLayout>
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Reference in new issue