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修复条形码显示文字宽度为2倍bug，新增TextViewConfig #8

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merged 1 commit into from
Mar 13, 2018
Merged

修复条形码显示文字宽度为2倍bug，新增TextViewConfig #8

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192 changes: 127 additions & 65 deletions zbarlibary/src/main/java/cn/bertsir/zbar/QRUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,8 @@
import android.graphics.Matrix;
import android.graphics.PointF;
import android.graphics.drawable.BitmapDrawable;
import android.support.annotation.ColorInt;
import android.text.TextUtils;
import android.view.Gravity;
import android.view.View;
import android.widget.ImageView;
Expand Down Expand Up @@ -39,36 +41,38 @@ public class QRUtils {


public static QRUtils getInstance() {
if(instance == null)
if (instance == null)
instance = new QRUtils();
return instance;
}


/**
* 生成二维码
*
* @param content
* @return
*/
public Bitmap createQRCode(String content){
return createQRCode(content,300,300);
public Bitmap createQRCode(String content) {
return createQRCode(content, 300, 300);
}

/**
* 生成二维码
*
* @param content
* @return
*/
public Bitmap createQRCode(String content,int width,int height){
public Bitmap createQRCode(String content, int width, int height) {
Bitmap bitmap = null;
BitMatrix result = null;
MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
try {
Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.Q);//这里调整二维码的容错率
hints.put(EncodeHintType.MARGIN, 1); //设置白边取值1-4，值越大白边越大
result = multiFormatWriter.encode(new String(content.getBytes("UTF-8"),"ISO-8859-1"), BarcodeFormat
.QR_CODE, width, height,hints);
result = multiFormatWriter.encode(new String(content.getBytes("UTF-8"), "ISO-8859-1"), BarcodeFormat
.QR_CODE, width, height, hints);
int w = result.getWidth();
int h = result.getHeight();
int[] pixels = new int[w * h];
Expand All @@ -89,39 +93,41 @@ public Bitmap createQRCode(String content,int width,int height){

/**
* 生成带logo的二维码
*
* @param content
* @param logo
* @return
*/
public Bitmap createQRCodeAddLogo(String content,Bitmap logo){
public Bitmap createQRCodeAddLogo(String content, Bitmap logo) {
Bitmap qrCode = createQRCode(content);
int qrheight = qrCode.getHeight();
int qrwidth = qrCode.getWidth();
int waterWidth = (int) (qrwidth * 0.3);//0.3为logo占二维码大小的倍数 建议不要过大，否则二维码失效
float scale = waterWidth / (float) logo.getWidth();
Bitmap waterQrcode = createWaterMaskCenter(qrCode, zoomImg(logo,scale));
Bitmap waterQrcode = createWaterMaskCenter(qrCode, zoomImg(logo, scale));
return waterQrcode;
}


public Bitmap createQRCodeAddLogo(String content,int width,int height,Bitmap logo){
Bitmap qrCode = createQRCode(content,width,height);
public Bitmap createQRCodeAddLogo(String content, int width, int height, Bitmap logo) {
Bitmap qrCode = createQRCode(content, width, height);
int qrheight = qrCode.getHeight();
int qrwidth = qrCode.getWidth();
int waterWidth = (int) (qrwidth * 0.3);//0.3为logo占二维码大小的倍数 建议不要过大，否则二维码失效
float scale = waterWidth / (float) logo.getWidth();
Bitmap waterQrcode = createWaterMaskCenter(qrCode, zoomImg(logo,scale));
Bitmap waterQrcode = createWaterMaskCenter(qrCode, zoomImg(logo, scale));
return waterQrcode;
}

/**
* 识别本地二维码
*
* @param url
* @return
*/
public String decodeQRcode(String url) throws Exception{
public String decodeQRcode(String url) throws Exception {
Bitmap obmp = BitmapFactory.decodeFile(url);
if(obmp != null){
if (obmp != null) {
int width = obmp.getWidth();
int height = obmp.getHeight();
int[] data = new int[width * height];
Expand All @@ -140,40 +146,40 @@ public String decodeQRcode(String url) throws Exception{
} else {
return re.getText();
}
}else {
} else {
return "";
}

}


public String decodeQRcode(ImageView iv) throws Exception{
public String decodeQRcode(ImageView iv) throws Exception {
Bitmap obmp = ((BitmapDrawable) (iv).getDrawable()).getBitmap();
int width = obmp.getWidth();
int height = obmp.getHeight();
int[] data = new int[width * height];
obmp.getPixels(data, 0, width, 0, 0, width, height);
RGBLuminanceSource source = new RGBLuminanceSource(width, height, data);
BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
QRCodeReader reader = new QRCodeReader();
Result re = null;
try {
re = reader.decode(bitmap1);
} catch (Exception e) {
e.printStackTrace();
}
if (re == null) {
return "";
} else {
return re.getText();
}
int width = obmp.getWidth();
int height = obmp.getHeight();
int[] data = new int[width * height];
obmp.getPixels(data, 0, width, 0, 0, width, height);
RGBLuminanceSource source = new RGBLuminanceSource(width, height, data);
BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
QRCodeReader reader = new QRCodeReader();
Result re = null;
try {
re = reader.decode(bitmap1);
} catch (Exception e) {
e.printStackTrace();
}
if (re == null) {
return "";
} else {
return re.getText();
}


}

public String decodeQRcode(Bitmap bm) throws Exception{
public String decodeQRcode(Bitmap bm) throws Exception {
Bitmap obmp = bm;
if(bm != null){
if (bm != null) {
int width = obmp.getWidth();
int height = obmp.getHeight();
int[] data = new int[width * height];
Expand All @@ -192,49 +198,71 @@ public String decodeQRcode(Bitmap bm) throws Exception{
} else {
return re.getText();
}
}else {
} else {
return "";
}

}

/**
* 生成条形码
*
* @param context
* @param contents
* @param desiredWidth
* @param desiredHeight
* @param displayCode
* @return
*/
public Bitmap creatBarcode(Context context, String contents, int desiredWidth, int desiredHeight, boolean displayCode) {
Bitmap ruseltBitmap = null;
public Bitmap createBarcode(Context context, String contents, int desiredWidth, int desiredHeight) {
if (TextUtils.isEmpty(contents)) {
throw new NullPointerException("contents not be null");
}
if (desiredWidth == 0 || desiredHeight == 0) {
throw new NullPointerException("desiredWidth or desiredHeight not be null");
}
Bitmap resultBitmap;
/**
* 图片两端所保留的空白的宽度
* 条形码的编码类型
*/
int marginW = 20;
BarcodeFormat barcodeFormat = BarcodeFormat.CODE_128;

resultBitmap = encodeAsBitmap(contents, barcodeFormat,
desiredWidth, desiredHeight);
return resultBitmap;
}

public Bitmap createBarCodeWithText(Context context, String contents, int desiredWidth,
int desiredHeight) {
return createBarCodeWithText(context, contents, desiredWidth, desiredHeight, null);
}

public Bitmap createBarCodeWithText(Context context, String contents, int desiredWidth,
int desiredHeight, TextViewConfig config) {
if (TextUtils.isEmpty(contents)) {
throw new NullPointerException("contents not be null");
}
if (desiredWidth == 0 || desiredHeight == 0) {
throw new NullPointerException("desiredWidth or desiredHeight not be null");
}
Bitmap resultBitmap;

/**
* 条形码的编码类型
*/
BarcodeFormat barcodeFormat = BarcodeFormat.CODE_128;

if (displayCode) {
Bitmap barcodeBitmap = encodeAsBitmap(contents, barcodeFormat,
desiredWidth, desiredHeight);
Bitmap codeBitmap = creatCodeBitmap(contents, desiredWidth + 2
* marginW, desiredHeight, context);
ruseltBitmap = mixtureBitmap(barcodeBitmap, codeBitmap, new PointF(
0, desiredHeight));
} else {
ruseltBitmap = encodeAsBitmap(contents, barcodeFormat,
desiredWidth, desiredHeight);
}
Bitmap barcodeBitmap = encodeAsBitmap(contents, barcodeFormat,
desiredWidth, desiredHeight);

return ruseltBitmap;
}
Bitmap codeBitmap = createCodeBitmap(contents, barcodeBitmap.getWidth(),
barcodeBitmap.getHeight(), context, config);

resultBitmap = mixtureBitmap(barcodeBitmap, codeBitmap, new PointF(
0, desiredHeight));
return resultBitmap;
}

private Bitmap encodeAsBitmap(String contents, BarcodeFormat format, int desiredWidth, int desiredHeight) {
private Bitmap encodeAsBitmap(String contents, BarcodeFormat format, int desiredWidth, int desiredHeight) {
final int WHITE = 0xFFFFFFFF;
final int BLACK = 0xFF000000;

Expand Down Expand Up @@ -267,45 +295,78 @@ private Bitmap encodeAsBitmap(String contents, BarcodeFormat format, int desire
}


private Bitmap creatCodeBitmap(String contents, int width, int height, Context context) {
private Bitmap createCodeBitmap(String contents, int width, int height, Context context,
TextViewConfig config) {
if (config == null) {
config = new TextViewConfig();
}
TextView tv = new TextView(context);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
tv.setLayoutParams(layoutParams);
tv.setText(contents);
tv.setTextSize(config.size == 0 ? tv.getTextSize() : config.size);
tv.setHeight(height);
tv.setGravity(Gravity.CENTER_HORIZONTAL);
tv.setGravity(config.gravity);
tv.setMaxLines(config.maxLines);
tv.setWidth(width);
tv.setDrawingCacheEnabled(true);
tv.setTextColor(Color.BLACK);
tv.setTextColor(config.color);
tv.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
tv.layout(0, 0, tv.getMeasuredWidth(), tv.getMeasuredHeight());

tv.buildDrawingCache();
Bitmap bitmapCode = tv.getDrawingCache();
return bitmapCode;
return tv.getDrawingCache();
}

public static class TextViewConfig {

private int gravity = Gravity.CENTER;
private int maxLines = 1;
private @ColorInt
int color = Color.BLACK;
private float size;

public TextViewConfig() {
}

public void setGravity(int gravity) {
this.gravity = gravity;
}

public void setMaxLines(int maxLines) {
this.maxLines = maxLines;
}

public void setColor(int color) {
this.color = color;
}

public void setSize(float size) {
this.size = size;
}
}

/**
* 将两个Bitmap合并成一个
*
* @param first
* @param second
* @param fromPoint
* 第二个Bitmap开始绘制的起始位置（相对于第一个Bitmap）
* @param fromPoint 第二个Bitmap开始绘制的起始位置（相对于第一个Bitmap）
* @return
*/
private Bitmap mixtureBitmap(Bitmap first, Bitmap second, PointF fromPoint) {
if (first == null || second == null || fromPoint == null) {
return null;
}
int marginW = 20;

int width = Math.max(first.getWidth(), second.getWidth());
Bitmap newBitmap = Bitmap.createBitmap(
first.getWidth() + second.getWidth() + marginW,
width,
first.getHeight() + second.getHeight(), Bitmap.Config.ARGB_4444);
Canvas cv = new Canvas(newBitmap);
cv.drawBitmap(first, marginW, 0, null);
cv.drawBitmap(first, 0, 0, null);
cv.drawBitmap(second, fromPoint.x, fromPoint.y, null);
cv.save(Canvas.ALL_SAVE_FLAG);
cv.restore();
Expand Down Expand Up @@ -343,6 +404,7 @@ private Bitmap createWaterMaskBitmap(Bitmap src, Bitmap watermark, int paddingLe

/**
* 缩放Bitmap
*
* @param bm
* @param f
* @return
Expand Down