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Merge "Move the QrCodeGenerator from Settings to SettingsLib for Wifi and BT" am: e5a21d345d

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Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/2107794

Change-Id: I9fedeeaf397e15e8c6a9421604a0cf6def4c743c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Betty Chang
2022-05-27 14:47:51 +00:00
committed by Automerger Merge Worker
parent 1ab90f4640 e5a21d345d
commit e300781fb8
3 changed files with 3 additions and 64 deletions
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2
src/com/android/settings/wifi/dpp/WifiDppQrCodeGeneratorFragment.java
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@@ -43,7 +43,7 @@ import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.app.chooser.DisplayResolveInfo;
import com.android.internal.app.chooser.TargetInfo;
import com.android.settings.R;
import com.android.settings.wifi.qrcode.QrCodeGenerator;
import com.android.settingslib.qrcode.QrCodeGenerator;
import com.google.zxing.WriterException;

63
src/com/android/settings/wifi/qrcode/QrCodeGenerator.java
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@@ -1,63 +0,0 @@
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.settings.wifi.qrcode;
import android.graphics.Bitmap;
import android.graphics.Color;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import java.nio.charset.CharsetEncoder;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
public final class QrCodeGenerator {
/**
* Generates a barcode image with {@code contents}.
*
* @param contents The contents to encode in the barcode
* @param size The preferred image size in pixels
* @return Barcode bitmap
*/
public static Bitmap encodeQrCode(String contents, int size)
throws WriterException, IllegalArgumentException {
final Map<EncodeHintType, Object> hints = new HashMap<>();
if (!isIso88591(contents)) {
hints.put(EncodeHintType.CHARACTER_SET, StandardCharsets.UTF_8.name());
}
final BitMatrix qrBits = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE,
size, size, hints);
final Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.RGB_565);
for (int x = 0; x < size; x++) {
for (int y = 0; y < size; y++) {
bitmap.setPixel(x, y, qrBits.get(x, y) ? Color.BLACK : Color.WHITE);
}
}
return bitmap;
}
private static boolean isIso88591(String contents) {
CharsetEncoder encoder = StandardCharsets.ISO_8859_1.newEncoder();
return encoder.canEncode(contents);
}
}

2
tests/robotests/src/com/android/settings/wifi/qrcode/QrCameraTest.java
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@@ -32,6 +32,8 @@ import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.hardware.Camera.Size;
import com.android.settingslib.qrcode.QrCodeGenerator;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.LuminanceSource;
import com.google.zxing.RGBLuminanceSource;