二维码 扫描框的 处理 美化功能 喜欢的 自己直接替换和修改
我的代码总结：链接: http://pan.baidu.com/s/1bpgI8Ar 密码: h3re；
谁会将粗糙的二维码，能够有效处理的；分享下给我；谢谢
还有谁会增加 二维码的解码库，也分享下给我，万分感谢；
下面是color.xml 文件
#3F51B5
#303F9F
#FF4081
#EDEDED
#ff000000
#ffffffff
#ffcccccc
#ff404040
#c00000ff
#ffffffff
#ffc0c0c0
#c000ff00
#ffffffff
#b0000000
#ff808080
#ffffffff
#fffff0e0
#ffffffff
#ff000000
#ff4b4b4b
#ff000000
#ffffffff
#50000000
#ffffffff
#00000000
#ff000000
#ff0000ff
#ff00ccff
#ff0000ff
#ff00ccff
#ff0000ff
#ffffffff
#60000000
#58567D
#686868
/*
* Copyright (C) 2008 ZXing authors
*
* 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.example.zxing_update.zxing.view;
import java.util.Collection;
import java.util.HashSet;
import android.R.integer;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.GradientDrawable;
import android.util.AttributeSet;
import android.view.View;
import com.example.zxing_update.R;
import com.example.zxing_update.zxing.camera.CameraManager;
import com.google.zxing.ResultPoint;
/**
* This view is overlaid on top of the camera preview. It adds the viewfinder
* rectangle and partial transparency outside it, as well as the laser scanner
* animation and result points.
*/
public final class ViewfinderView extends View {
private static final int[] SCANNER_ALPHA = { 0, 64, 128, 192, 255, 192,
128, 64 };
private static final long ANIMATION_DELAY = 100L;
private static final int OPAQUE = 0xFF;
private final Paint paint;
private Bitmap resultBitmap;
private final int maskColor;
private final int resultColor;
private final int frameColor;
private final int laserColor;
private final int resultPointColor;
private int scannerAlpha;
private Collection possibleResultPoints;
private Collection lastPossibleResultPoints;
// 二维码 美化功能 添加处
private boolean laserLinePortrait = true;
Rect mRect;
int i = 0;
GradientDrawable mDrawable;
Paint textPaint;
private int textColor;
private int rectCorner_color;
private int laserColor_left;
private int laserColor_center;
private int laserColor_right;
// This constructor is used when the class is built from an XML resource.
public ViewfinderView(Context context, AttributeSet attrs) {
super(context, attrs);
// Initialize these once for performance rather than calling them every
// time in onDraw().
paint = new Paint();
// 二维码 美化功能 添加处
textPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mRect = new Rect();
// int laserColor_left = Color.parseColor("#CACACA");
// int laserColor_center = Color.RED;
// int laserColor_right = Color.parseColor("#CACACA");
Resources resources = getResources();
laserColor_left = resources.getColor(R.color.viewfinder_laser_left);// 设置 扫描线的 的颜色
laserColor_center = resources.getColor(R.color.viewfinder_laser_center);// 设置 扫描线的 的颜色
laserColor_right = resources.getColor(R.color.viewfinder_laser_right);// 设置 扫描线的 的颜色
mDrawable = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT, new int[] { laserColor_left, laserColor_center, laserColor_right });
maskColor = resources.getColor(R.color.viewfinder_mask);
resultColor = resources.getColor(R.color.result_view);
frameColor = resources.getColor(R.color.viewfinder_frame);
laserColor = resources.getColor(R.color.viewfinder_laser);// 设置 扫描线的 的颜色
textColor = resources.getColor(R.color.viewfinder_text);// 设置 扫描 框下面的的 的颜色
resultPointColor = resources.getColor(R.color.possible_result_points);// 设置闪点的 颜色
rectCorner_color= resources.getColor(R.color.viewfinder_4_corner);//设置 扫描框的 四个角的颜色
scannerAlpha = 0;
possibleResultPoints = new HashSet(5);
}
@Override
public void onDraw(Canvas canvas) {
// 中间的扫描框，你要修改扫描框的大小，去CameraManager里面修改
Rect frame = CameraManager.get().getFramingRect();
if (frame == null) {
return;
}
// 获取屏幕的宽和高
int width = canvas.getWidth();
int height = canvas.getHeight();
// Draw the exterior (i.e. outside the framing rect) darkened
//画出扫描框外面的阴影部分，共四个部分，扫描框的上面到屏幕上面，扫描框的下面到屏幕下面
// 扫描框的左边面到屏幕左边，扫描框的右边到屏幕右边
paint.setColor(resultBitmap != null ? resultColor : maskColor);
canvas.drawRect(0, 0, width, frame.top, paint);
canvas.drawRect(0, frame.top, frame.left, frame.bottom + 1, paint);
canvas.drawRect(frame.right + 1, frame.top, width, frame.bottom + 1,paint);
canvas.drawRect(0, frame.bottom + 1, width, height, paint);
if (resultBitmap != null) {
// Draw the opaque result bitmap over the scanning rectangle
paint.setAlpha(OPAQUE);
canvas.drawBitmap(resultBitmap, frame.left, frame.top, paint);
} else {
// 二维码 美化功能 替换处
// //画扫描框边上的角，总共8个部分
// // Draw a two pixel solid black border inside the framing rect
// paint.setColor(frameColor);
// canvas.drawRect(frame.left, frame.top, frame.right + 1,frame.top + 2, paint);
//
// canvas.drawRect(frame.left, frame.top + 2, frame.left + 2,frame.bottom - 1, paint);
//
// canvas.drawRect(frame.right - 1, frame.top, frame.right + 1,frame.bottom - 1, paint);
//
// canvas.drawRect(frame.left, frame.bottom - 1, frame.right + 1,frame.bottom + 1, paint);
//
//
// // Draw a red "laser scanner" line through the middle to show
// // decoding is active
// //画扫描框下面的字
// paint.setColor(laserColor);
// paint.setAlpha(SCANNER_ALPHA[scannerAlpha]);
// scannerAlpha = (scannerAlpha + 1) % SCANNER_ALPHA.length;
// int middle = frame.height() / 2 + frame.top;
// canvas.drawRect(frame.left + 2, middle - 1, frame.right - 1,
// middle + 2, paint);
// 二维码 美化功能 替换处
paint.setColor(rectCorner_color);
//画出四个角：以屏幕左上角 为原点进行画边-画矩形：遵守 左-上-右-下原则
canvas.drawRect(frame.left - 10, frame.top - 10, frame.left + 20, frame.top, paint);
canvas.drawRect(frame.left - 10, frame.top - 10, frame.left, frame.top + 20, paint);
canvas.drawRect(frame.right - 20, frame.top - 10, frame.right + 10, frame.top, paint);
canvas.drawRect(frame.right, frame.top - 10, frame.right + 10, frame.top + 20, paint);
// 这个 美化下面四个角有错：下边 不能再上边的 上边 ，画不出来； 一定要遵循上面的原则
// canvas.drawRect(frame.left - 10, frame.bottom + 10, frame.left + 20, frame.bottom, paint);
// canvas.drawRect(frame.left - 10, frame.bottom + 10, frame.left, frame.bottom - 20, paint);
// canvas.drawRect(frame.right - 20, frame.bottom + 10, frame.right + 10, frame.bottom, paint);
// canvas.drawRect(frame.right, frame.bottom + 10, frame.right + 10, frame.bottom - 20, paint);
// 这个 美化下面四个角 更正
canvas.drawRect(frame.left - 10,frame.bottom, frame.left + 20,frame.bottom + 10, paint);
canvas.drawRect(frame.left - 10, frame.bottom - 20, frame.left,frame.bottom + 10 , paint);
canvas.drawRect(frame.right - 20, frame.bottom, frame.right + 10, frame.bottom + 10, paint);
canvas.drawRect(frame.right, frame.bottom - 20, frame.right + 10,frame.bottom + 10, paint);
int middle = frame.width() / 2;
textPaint.setTextSize(25);//字体的大小
textPaint.setColor(textColor);//字体颜色
String text = getResources().getString(R.string.dimension_content);
int textLen=(int) textPaint.measureText(text);//获得文本的长度
canvas.drawText(text, frame.width() / 2 + frame.left-textLen/2, frame.bottom + 60, textPaint);
// 画一个红色的线
// Draw a red "laser scanner" line through the middle to show
// decoding is active
paint.setColor(laserColor);// 这句话 似乎没有用
paint.setStrokeWidth(2);//
paint.setAlpha(SCANNER_ALPHA[scannerAlpha]);
scannerAlpha = (scannerAlpha + 1) % SCANNER_ALPHA.length;
//上下走的线 ：实现线 上下走
if (laserLinePortrait) {
if ((i += 5) < frame.bottom - frame.top) {
/*
* canvas.drawRect(frame.left + 2, frame.top - 2 + i, frame.right - 1, frame.top + 2 + i,
* paint);
*/
int r = 8;
// shap 样式可以自己自定义 ，使用getResources().getDrawable(id) 进行调用
mDrawable.setShape(GradientDrawable.RECTANGLE);//设置 矩形线
mDrawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);//LINEAR_GRADIENT 设置线的颜色渐变
setCornerRadii(mDrawable, r, r, r, r);
mRect.set(frame.left + 2, frame.top - 3 + i, frame.right - 1, frame.top + 3 + i);
mDrawable.setBounds(mRect);
mDrawable.draw(canvas);
invalidate();
} else {
i = 0;
}
} else {
float left = frame.left + (frame.right - frame.left) / 2 - 2;
canvas.drawRect(left, frame.top, left + 2, frame.bottom - 2, paint);
}
Collection currentPossible = possibleResultPoints;
Collection currentLast = lastPossibleResultPoints;
if (currentPossible.isEmpty()) {
lastPossibleResultPoints = null;
} else {
possibleResultPoints = new HashSet(5);
lastPossibleResultPoints = currentPossible;
paint.setAlpha(OPAQUE);
paint.setColor(resultPointColor);// 设置扫描 亮点的颜色
for (ResultPoint point : currentPossible) {
canvas.drawCircle(frame.left + point.getX(), frame.top
+ point.getY(), 6.0f, paint);
}
}
if (currentLast != null) {
paint.setAlpha(OPAQUE / 2);
paint.setColor(resultPointColor);
for (ResultPoint point : currentLast) {
canvas.drawCircle(frame.left + point.getX(), frame.top
+ point.getY(), 3.0f, paint);
}
}
// Request another update at the animation interval, but only
// repaint the laser line,
// not the entire viewfinder mask.
//只刷新扫描框的内容，其他地方不刷新
postInvalidateDelayed(ANIMATION_DELAY, frame.left, frame.top,
frame.right, frame.bottom);
}
}
public void setCornerRadii(GradientDrawable drawable, float r0, float r1, float r2, float r3) {
drawable.setCornerRadii(new float[] { r0, r0, r1, r1, r2, r2, r3, r3 });
}
public void drawViewfinder() {
resultBitmap = null;
invalidate();
}
/**
* Draw a bitmap with the result points highlighted instead of the live
* scanning display.
*
* @param barcode
* An image of the decoded barcode.
*/
public void drawResultBitmap(Bitmap barcode) {
resultBitmap = barcode;
invalidate();
}
public void addPossibleResultPoint(ResultPoint point) {
possibleResultPoints.add(point);
}
}