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更新CameraX至v1.2.1

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Jenly
2023-03-04 20:54:37 +08:00
parent b2fa6aaec0
commit a85d793149
53 changed files with 1566 additions and 884 deletions
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596
zxing-lite/src/main/java/com/king/zxing/ViewfinderView.java
View File

@@ -1,30 +1,20 @@
package com.king.zxing;
/*
* 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.
*/
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.Drawable;
import android.text.Layout;
import android.text.StaticLayout;
import android.text.TextPaint;
@@ -32,28 +22,37 @@ import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import com.king.zxing.util.LogUtils;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.List;
import androidx.annotation.ColorInt;
import androidx.annotation.ColorRes;
import androidx.annotation.DrawableRes;
import androidx.annotation.IntDef;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.core.content.ContextCompat;
import static com.king.zxing.ViewfinderView.FrameGravity.*;
/**
* 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.
* 取景视图：主要用于渲染扫描效果
*
* @author dswitkin@google.com (Daniel Switkin)
* @author <a href="mailto:jenly1314@gmail.com">Jenly</a>
*/
public class ViewfinderView extends View {
private static final int CURRENT_POINT_OPACITY = 0xA0;
private static final int MAX_RESULT_POINTS = 20;
private static final int POINT_SIZE = 30;
/**
* 默认范围比例，之所以默认为 1.2 是因为内切圆半径和外切圆半径之和的二分之一（即：（1 + √2) / 2 ≈ 1.2）
*/
private final float DEFAULT_RANGE_RATIO = 1.2F;
private final float MAX_ZOOM_RATIO = 1.2F;
/**
* 画笔
@@ -186,25 +185,78 @@ public class ViewfinderView extends View {
*/
private FrameGravity frameGravity;
private Point point;
private int pointColor;
private int pointStrokeColor;
private Bitmap pointBitmap;
private boolean isShowPointAnim = true;
private float pointRadius;
private float pointStrokeRatio = 1.2f;
private float pointStrokeRatio;
private float pointStrokeRadius;
/**
* 当前缩放比例
*/
private float currentZoomRatio = 1.0f;
/**
* 最后一次缩放比例（即上一次缩放比例）
*/
private float lastZoomRatio;
/**
* 缩放速度
*/
private float zoomSpeed = 0.02f;
public enum LaserStyle{
NONE(0),LINE(1),GRID(2);
private int zoomCount;
/**
* 结果点有效点击范围半径
*/
private float pointRangeRadius;
private Bitmap laserBitmap;
private int viewfinderStyle = ViewfinderStyle.CLASSIC;
private List<Point> pointList;
private boolean isShowPoints = false;
private OnItemClickListener onItemClickListener;
private GestureDetector gestureDetector;
/**
* 取景框样式
*/
@IntDef({ViewfinderStyle.CLASSIC, ViewfinderStyle.POPULAR})
@Retention(RetentionPolicy.SOURCE)
public @interface ViewfinderStyle {
/**
* 经典样式：经典的扫码风格（带扫码框）
*/
int CLASSIC = 0;
/**
* 流行样式：类似于新版的微信全屏扫码（不带扫码框）
*/
int POPULAR = 1;
}
/**
* 扫描线样式
*/
public enum LaserStyle {
NONE(0), LINE(1), GRID(2), IMAGE(3);
private int mValue;
LaserStyle(int value){
LaserStyle(int value) {
mValue = value;
}
private static LaserStyle getFromInt(int value){
for(LaserStyle style : LaserStyle.values()){
if(style.mValue == value){
private static LaserStyle getFromInt(int value) {
for (LaserStyle style : LaserStyle.values()) {
if (style.mValue == value) {
return style;
}
}
@@ -212,18 +264,21 @@ public class ViewfinderView extends View {
}
}
/**
* 文字位置
*/
public enum TextLocation {
TOP(0),BOTTOM(1);
TOP(0), BOTTOM(1);
private int mValue;
TextLocation(int value){
TextLocation(int value) {
mValue = value;
}
private static TextLocation getFromInt(int value){
for(TextLocation location : TextLocation.values()){
if(location.mValue == value){
private static TextLocation getFromInt(int value) {
for (TextLocation location : TextLocation.values()) {
if (location.mValue == value) {
return location;
}
}
@@ -231,7 +286,9 @@ public class ViewfinderView extends View {
}
}
/**
* 扫码框对齐方式
*/
public enum FrameGravity {
CENTER(0), LEFT(1), TOP(2), RIGHT(3), BOTTOM(4);
@@ -252,65 +309,107 @@ public class ViewfinderView extends View {
}
public ViewfinderView(Context context) {
this(context,null);
this(context, null);
}
public ViewfinderView(Context context, @Nullable AttributeSet attrs) {
this(context, attrs,0);
this(context, attrs, 0);
}
public ViewfinderView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context,attrs);
init(context, attrs);
}
/**
* 初始化
*
* @param context
* @param attrs
*/
private void init(Context context, AttributeSet attrs) {
//初始化自定义属性信息
// 初始化自定义属性信息
TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.ViewfinderView);
maskColor = array.getColor(R.styleable.ViewfinderView_maskColor, ContextCompat.getColor(context,R.color.viewfinder_mask));
frameColor = array.getColor(R.styleable.ViewfinderView_frameColor, ContextCompat.getColor(context,R.color.viewfinder_frame));
cornerColor = array.getColor(R.styleable.ViewfinderView_cornerColor, ContextCompat.getColor(context,R.color.viewfinder_corner));
laserColor = array.getColor(R.styleable.ViewfinderView_laserColor, ContextCompat.getColor(context,R.color.viewfinder_laser));
maskColor = array.getColor(R.styleable.ViewfinderView_maskColor, ContextCompat.getColor(context, R.color.viewfinder_mask));
frameColor = array.getColor(R.styleable.ViewfinderView_frameColor, ContextCompat.getColor(context, R.color.viewfinder_frame));
cornerColor = array.getColor(R.styleable.ViewfinderView_cornerColor, ContextCompat.getColor(context, R.color.viewfinder_corner));
laserColor = array.getColor(R.styleable.ViewfinderView_laserColor, ContextCompat.getColor(context, R.color.viewfinder_laser));
labelText = array.getString(R.styleable.ViewfinderView_labelText);
labelTextColor = array.getColor(R.styleable.ViewfinderView_labelTextColor, ContextCompat.getColor(context,R.color.viewfinder_text_color));
labelTextSize = array.getDimension(R.styleable.ViewfinderView_labelTextSize, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,14f,getResources().getDisplayMetrics()));
labelTextPadding = array.getDimension(R.styleable.ViewfinderView_labelTextPadding,TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,24,getResources().getDisplayMetrics()));
labelTextWidth = array.getDimensionPixelSize(R.styleable.ViewfinderView_labelTextWidth,0);
labelTextLocation = TextLocation.getFromInt(array.getInt(R.styleable.ViewfinderView_labelTextLocation,0));
labelTextColor = array.getColor(R.styleable.ViewfinderView_labelTextColor, ContextCompat.getColor(context, R.color.viewfinder_text_color));
labelTextSize = array.getDimension(R.styleable.ViewfinderView_labelTextSize, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, 14f, getResources().getDisplayMetrics()));
labelTextPadding = array.getDimension(R.styleable.ViewfinderView_labelTextPadding, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 24, getResources().getDisplayMetrics()));
labelTextWidth = array.getDimensionPixelSize(R.styleable.ViewfinderView_labelTextWidth, 0);
labelTextLocation = TextLocation.getFromInt(array.getInt(R.styleable.ViewfinderView_labelTextLocation, 0));
frameWidth = array.getDimensionPixelSize(R.styleable.ViewfinderView_frameWidth,0);
frameHeight = array.getDimensionPixelSize(R.styleable.ViewfinderView_frameHeight,0);
frameWidth = array.getDimensionPixelSize(R.styleable.ViewfinderView_frameWidth, 0);
frameHeight = array.getDimensionPixelSize(R.styleable.ViewfinderView_frameHeight, 0);
laserStyle = LaserStyle.getFromInt(array.getInt(R.styleable.ViewfinderView_laserStyle,LaserStyle.LINE.mValue));
gridColumn = array.getInt(R.styleable.ViewfinderView_gridColumn,20);
gridHeight = (int)array.getDimension(R.styleable.ViewfinderView_gridHeight,TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,40,getResources().getDisplayMetrics()));
laserStyle = LaserStyle.getFromInt(array.getInt(R.styleable.ViewfinderView_laserStyle, LaserStyle.LINE.mValue));
gridColumn = array.getInt(R.styleable.ViewfinderView_gridColumn, 20);
gridHeight = (int) array.getDimension(R.styleable.ViewfinderView_gridHeight, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 40, getResources().getDisplayMetrics()));
cornerRectWidth = (int) array.getDimension(R.styleable.ViewfinderView_cornerRectWidth, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources().getDisplayMetrics()));
cornerRectHeight = (int) array.getDimension(R.styleable.ViewfinderView_cornerRectHeight, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 16, getResources().getDisplayMetrics()));
scannerLineMoveDistance = (int) array.getDimension(R.styleable.ViewfinderView_scannerLineMoveDistance, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, getResources().getDisplayMetrics()));
scannerLineHeight = (int) array.getDimension(R.styleable.ViewfinderView_scannerLineHeight, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 5, getResources().getDisplayMetrics()));
frameLineWidth = (int) array.getDimension(R.styleable.ViewfinderView_frameLineWidth, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, getResources().getDisplayMetrics()));
scannerAnimationDelay = array.getInteger(R.styleable.ViewfinderView_scannerAnimationDelay, 20);
frameRatio = array.getFloat(R.styleable.ViewfinderView_frameRatio, 0.625f);
framePaddingLeft = array.getDimension(R.styleable.ViewfinderView_framePaddingLeft, 0);
framePaddingTop = array.getDimension(R.styleable.ViewfinderView_framePaddingTop, 0);
framePaddingRight = array.getDimension(R.styleable.ViewfinderView_framePaddingRight, 0);
framePaddingBottom = array.getDimension(R.styleable.ViewfinderView_framePaddingBottom, 0);
frameGravity = FrameGravity.getFromInt(array.getInt(R.styleable.ViewfinderView_frameGravity, FrameGravity.CENTER.mValue));
pointColor = array.getColor(R.styleable.ViewfinderView_pointColor, ContextCompat.getColor(context, R.color.viewfinder_point));
pointStrokeColor = array.getColor(R.styleable.ViewfinderView_pointStrokeColor, Color.WHITE);
pointRadius = array.getDimension(R.styleable.ViewfinderView_pointRadius, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 15, getResources().getDisplayMetrics()));
pointStrokeRatio = array.getFloat(R.styleable.ViewfinderView_pointStrokeRatio, DEFAULT_RANGE_RATIO);
isShowPointAnim = array.getBoolean(R.styleable.ViewfinderView_showPointAnim, true);
Drawable pointDrawable = array.getDrawable(R.styleable.ViewfinderView_pointDrawable);
Drawable laserDrawable = array.getDrawable(R.styleable.ViewfinderView_laserDrawable);
viewfinderStyle = array.getInt(R.styleable.ViewfinderView_viewfinderStyle, ViewfinderStyle.CLASSIC);
cornerRectWidth = (int)array.getDimension(R.styleable.ViewfinderView_cornerRectWidth,TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,4,getResources().getDisplayMetrics()));
cornerRectHeight = (int)array.getDimension(R.styleable.ViewfinderView_cornerRectHeight,TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,16,getResources().getDisplayMetrics()));
scannerLineMoveDistance = (int)array.getDimension(R.styleable.ViewfinderView_scannerLineMoveDistance,TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,2,getResources().getDisplayMetrics()));
scannerLineHeight = (int)array.getDimension(R.styleable.ViewfinderView_scannerLineHeight,TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,5,getResources().getDisplayMetrics()));
frameLineWidth = (int)array.getDimension(R.styleable.ViewfinderView_frameLineWidth,TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,1,getResources().getDisplayMetrics()));
scannerAnimationDelay = array.getInteger(R.styleable.ViewfinderView_scannerAnimationDelay,20);
frameRatio = array.getFloat(R.styleable.ViewfinderView_frameRatio,0.625f);
framePaddingLeft = array.getDimension(R.styleable.ViewfinderView_framePaddingLeft,0);
framePaddingTop = array.getDimension(R.styleable.ViewfinderView_framePaddingTop,0);
framePaddingRight = array.getDimension(R.styleable.ViewfinderView_framePaddingRight,0);
framePaddingBottom = array.getDimension(R.styleable.ViewfinderView_framePaddingBottom,0);
frameGravity = FrameGravity.getFromInt(array.getInt(R.styleable.ViewfinderView_frameGravity, CENTER.mValue));
array.recycle();
pointColor = laserColor;
pointStrokeColor = Color.WHITE;
if (pointDrawable != null) {
pointBitmap = getBitmapFormDrawable(pointDrawable);
pointRangeRadius = (pointBitmap.getWidth() + pointBitmap.getHeight()) / 4 * DEFAULT_RANGE_RATIO;
} else {
pointStrokeRadius = pointRadius * pointStrokeRatio;
pointRangeRadius = pointStrokeRadius * DEFAULT_RANGE_RATIO;
}
if (laserDrawable != null) {
laserBitmap = getBitmapFormDrawable(laserDrawable);
}
pointRadius = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,10,getResources().getDisplayMetrics());
paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setAntiAlias(true);
textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
if (isShowPoints && checkSingleTap(e.getX(), e.getY())) {
return true;
}
return super.onSingleTapUp(e);
}
});
}
private DisplayMetrics getDisplayMetrics(){
private Bitmap getBitmapFormDrawable(@NonNull Drawable drawable) {
Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, bitmap.getWidth(), bitmap.getHeight());
drawable.draw(canvas);
return bitmap;
}
private DisplayMetrics getDisplayMetrics() {
return getResources().getDisplayMetrics();
}
@@ -322,48 +421,52 @@ public class ViewfinderView extends View {
this.labelTextColor = color;
}
public void setLabelTextColorResource(@ColorRes int id){
this.labelTextColor = ContextCompat.getColor(getContext(),id);
public void setLabelTextColorResource(@ColorRes int id) {
this.labelTextColor = ContextCompat.getColor(getContext(), id);
}
public void setLabelTextSize(float textSize) {
this.labelTextSize = textSize;
}
public void setLaserStyle(LaserStyle laserStyle) {
this.laserStyle = laserStyle;
}
public void setPointImageResource(@DrawableRes int drawable) {
setPointBitmap(BitmapFactory.decodeResource(getResources(), drawable));
}
public void setPointBitmap(Bitmap bitmap) {
pointBitmap = bitmap;
pointRangeRadius = (pointBitmap.getWidth() + pointBitmap.getHeight()) / 4 * DEFAULT_RANGE_RATIO;
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
LogUtils.d("onLayout" + getWidth() + "," + getHeight());
initFrame(getWidth(),getHeight());
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
LogUtils.d("onSizeChanged" + w + "," + h);
private void initFrame(int width, int height) {
}
int size = (int) (Math.min(width, height) * frameRatio);
private void initFrame(int width,int height){
int size = (int)(Math.min(width,height) * frameRatio);
if(frameWidth <= 0 || frameWidth > width){
if (frameWidth <= 0 || frameWidth > width) {
frameWidth = size;
}
if(frameHeight <= 0 || frameHeight > height){
if (frameHeight <= 0 || frameHeight > height) {
frameHeight = size;
}
if(labelTextWidth <= 0){
if (labelTextWidth <= 0) {
labelTextWidth = width - getPaddingLeft() - getPaddingRight();
}
float leftOffsets = (width - frameWidth) / 2 + framePaddingLeft - framePaddingRight;
float topOffsets = (height - frameHeight) / 2 + framePaddingTop - framePaddingBottom;
switch (frameGravity){
switch (frameGravity) {
case LEFT:
leftOffsets = framePaddingLeft;
break;
@@ -374,57 +477,74 @@ public class ViewfinderView extends View {
leftOffsets = width - frameWidth + framePaddingRight;
break;
case BOTTOM:
topOffsets = height - frameHeight + framePaddingBottom;
topOffsets = height - frameHeight + framePaddingBottom;
break;
}
frame = new Rect((int)leftOffsets, (int)topOffsets, (int)leftOffsets + frameWidth, (int)topOffsets + frameHeight);
frame = new Rect((int) leftOffsets, (int) topOffsets, (int) leftOffsets + frameWidth, (int) topOffsets + frameHeight);
}
@Override
public void onDraw(Canvas canvas) {
if (isShowPoints) {
// 显示结果点
drawMask(canvas, getWidth(), getHeight());
drawResultPoints(canvas, pointList);
if (isShowPointAnim && pointBitmap == null) {
// 显示动画并且结果点标记的图片为空时，支持缩放动画
calcZoomPointAnim();
}
return;
}
if (frame == null) {
return;
}
if(scannerStart == 0 || scannerEnd == 0) {
if (scannerStart == 0 || scannerEnd == 0) {
scannerStart = frame.top;
scannerEnd = frame.bottom - scannerLineHeight;
}
int width = canvas.getWidth();
int height = canvas.getHeight();
if (viewfinderStyle == ViewfinderStyle.CLASSIC) {// CLASSIC样式：经典样式（带扫码框）
// 绘制模糊区域
drawExterior(canvas, frame, getWidth(), getHeight());
// 绘制扫描动画
drawLaserScanner(canvas, frame);
// 绘制取景区域框
drawFrame(canvas, frame);
// 绘制取景区域边角
drawCorner(canvas, frame);
// 绘制提示信息
drawTextInfo(canvas, frame);
// 间隔更新取景区域
postInvalidateDelayed(scannerAnimationDelay, frame.left, frame.top, frame.right, frame.bottom);
} else if (viewfinderStyle == ViewfinderStyle.POPULAR) {// POPULAR样式：类似于新版的微信全屏扫码（不带扫码框）
// 绘制扫描动画
drawLaserScanner(canvas, frame);
postInvalidateDelayed(scannerAnimationDelay);
}
// 绘制模糊区域
drawExterior(canvas,frame,width,height);
// 绘制扫描动画
drawLaserScanner(canvas,frame);
// 绘制取景区域框
drawFrame(canvas, frame);
// 绘制取景区域边角
drawCorner(canvas, frame);
//绘制提示信息
drawTextInfo(canvas, frame);
// 间隔更新取景区域
postInvalidateDelayed(scannerAnimationDelay, frame.left, frame.top, frame.right, frame.bottom);
}
/**
* 绘制文本
*
* @param canvas
* @param frame
*/
private void drawTextInfo(Canvas canvas, Rect frame) {
if(!TextUtils.isEmpty(labelText)){
if (!TextUtils.isEmpty(labelText)) {
textPaint.setColor(labelTextColor);
textPaint.setTextSize(labelTextSize);
textPaint.setTextAlign(Paint.Align.CENTER);
StaticLayout staticLayout = new StaticLayout(labelText,textPaint,labelTextWidth, Layout.Alignment.ALIGN_NORMAL,1.2f,0.0f,true);
if(labelTextLocation == TextLocation.BOTTOM){
canvas.translate(frame.left + frame.width() / 2,frame.bottom + labelTextPadding);
}else{
canvas.translate(frame.left + frame.width() / 2,frame.top - labelTextPadding - staticLayout.getHeight());
StaticLayout staticLayout = new StaticLayout(labelText, textPaint, labelTextWidth, Layout.Alignment.ALIGN_NORMAL, 1.2f, 0.0f, true);
if (labelTextLocation == TextLocation.BOTTOM) {
canvas.translate(frame.left + frame.width() / 2, frame.bottom + labelTextPadding);
} else {
canvas.translate(frame.left + frame.width() / 2, frame.top - labelTextPadding - staticLayout.getHeight());
}
staticLayout.draw(canvas);
}
@@ -433,39 +553,65 @@ public class ViewfinderView extends View {
/**
* 绘制边角
*
* @param canvas
* @param frame
*/
private void drawCorner(Canvas canvas, Rect frame) {
paint.setColor(cornerColor);
//左上
// 左上
canvas.drawRect(frame.left, frame.top, frame.left + cornerRectWidth, frame.top + cornerRectHeight, paint);
canvas.drawRect(frame.left, frame.top, frame.left + cornerRectHeight, frame.top + cornerRectWidth, paint);
//右上
// 右上
canvas.drawRect(frame.right - cornerRectWidth, frame.top, frame.right, frame.top + cornerRectHeight, paint);
canvas.drawRect(frame.right - cornerRectHeight, frame.top, frame.right, frame.top + cornerRectWidth, paint);
//左下
// 左下
canvas.drawRect(frame.left, frame.bottom - cornerRectWidth, frame.left + cornerRectHeight, frame.bottom, paint);
canvas.drawRect(frame.left, frame.bottom - cornerRectHeight, frame.left + cornerRectWidth, frame.bottom, paint);
//右下
// 右下
canvas.drawRect(frame.right - cornerRectWidth, frame.bottom - cornerRectHeight, frame.right, frame.bottom, paint);
canvas.drawRect(frame.right - cornerRectHeight, frame.bottom - cornerRectWidth, frame.right, frame.bottom, paint);
}
/**
* 绘制扫码动画
*
* @param canvas
* @param frame
*/
private void drawImageScanner(Canvas canvas, Rect frame) {
if (laserBitmap != null) {
paint.setColor(Color.WHITE);
canvas.drawBitmap(laserBitmap, frame.left, scannerStart, paint);
if (scannerStart < scannerEnd) {
scannerStart += scannerLineMoveDistance;
} else {
scannerStart = frame.top;
}
} else {
drawLineScanner(canvas, frame);
}
}
/**
* 绘制激光扫描线
*
* @param canvas
* @param frame
*/
private void drawLaserScanner(Canvas canvas, Rect frame) {
if(laserStyle != null){
if (laserStyle != null) {
paint.setColor(laserColor);
switch (laserStyle){
case LINE://线
drawLineScanner(canvas,frame);
switch (laserStyle) {
case LINE:// 线
drawLineScanner(canvas, frame);
break;
case GRID://网格
drawGridScanner(canvas,frame);
case GRID:// 网格
drawGridScanner(canvas, frame);
break;
case IMAGE:// 图片
drawImageScanner(canvas, frame);
break;
}
paint.setShader(null);
@@ -474,11 +620,12 @@ public class ViewfinderView extends View {
/**
* 绘制线性式扫描
*
* @param canvas
* @param frame
*/
private void drawLineScanner(Canvas canvas,Rect frame){
//线性渐变
private void drawLineScanner(Canvas canvas, Rect frame) {
// 线性渐变
LinearGradient linearGradient = new LinearGradient(
frame.left, scannerStart,
frame.left, scannerStart + scannerLineHeight,
@@ -487,8 +634,8 @@ public class ViewfinderView extends View {
Shader.TileMode.MIRROR);
paint.setShader(linearGradient);
if(scannerStart <= scannerEnd) {
//椭圆
if (scannerStart < scannerEnd) {
// 椭圆
RectF rectF = new RectF(frame.left + 2 * scannerLineHeight, scannerStart, frame.right - 2 * scannerLineHeight, scannerStart + scannerLineHeight);
canvas.drawOval(rectF, paint);
scannerStart += scannerLineMoveDistance;
@@ -499,34 +646,35 @@ public class ViewfinderView extends View {
/**
* 绘制网格式扫描
*
* @param canvas
* @param frame
*/
private void drawGridScanner(Canvas canvas,Rect frame){
private void drawGridScanner(Canvas canvas, Rect frame) {
int stroke = 2;
paint.setStrokeWidth(stroke);
//计算Y轴开始位置
// 计算Y轴开始位置
int startY = gridHeight > 0 && scannerStart - frame.top > gridHeight ? scannerStart - gridHeight : frame.top;
LinearGradient linearGradient = new LinearGradient(frame.left + frame.width()/2, startY, frame.left + frame.width()/2, scannerStart, new int[]{shadeColor(laserColor), laserColor}, new float[]{0,1f}, LinearGradient.TileMode.CLAMP);
//给画笔设置着色器
LinearGradient linearGradient = new LinearGradient(frame.left + frame.width() / 2, startY, frame.left + frame.width() / 2, scannerStart, new int[]{shadeColor(laserColor), laserColor}, new float[]{0, 1f}, LinearGradient.TileMode.CLAMP);
// 给画笔设置着色器
paint.setShader(linearGradient);
float wUnit = frame.width() * 1.0f/ gridColumn;
float wUnit = frame.width() * 1.0f / gridColumn;
float hUnit = wUnit;
//遍历绘制网格纵线
// 遍历绘制网格纵线
for (int i = 1; i < gridColumn; i++) {
canvas.drawLine(frame.left + i * wUnit, startY,frame.left + i * wUnit, scannerStart,paint);
canvas.drawLine(frame.left + i * wUnit, startY, frame.left + i * wUnit, scannerStart, paint);
}
int height = gridHeight > 0 && scannerStart - frame.top > gridHeight ? gridHeight : scannerStart - frame.top;
//遍历绘制网格横线
for (int i = 0; i <= height/hUnit; i++) {
canvas.drawLine(frame.left, scannerStart - i * hUnit,frame.right, scannerStart - i * hUnit,paint);
// 遍历绘制网格横线
for (int i = 0; i <= height / hUnit; i++) {
canvas.drawLine(frame.left, scannerStart - i * hUnit, frame.right, scannerStart - i * hUnit, paint);
}
if(scannerStart<scannerEnd){
if (scannerStart < scannerEnd) {
scannerStart += scannerLineMoveDistance;
} else {
scannerStart = frame.top;
@@ -536,17 +684,19 @@ public class ViewfinderView extends View {
/**
* 处理颜色模糊
*
* @param color
* @return
*/
public int shadeColor(int color) {
String hax = Integer.toHexString(color);
String result = "01"+hax.substring(2);
String result = "01" + hax.substring(2);
return Integer.valueOf(result, 16);
}
/**
* 绘制扫描区边框
*
* @param canvas
* @param frame
*/
@@ -560,13 +710,14 @@ public class ViewfinderView extends View {
/**
* 绘制模糊区域
*
* @param canvas
* @param frame
* @param width
* @param height
*/
private void drawExterior(Canvas canvas, Rect frame, int width, int height) {
if(maskColor != 0){
if (maskColor != 0) {
paint.setColor(maskColor);
canvas.drawRect(0, 0, width, frame.top, paint);
canvas.drawRect(0, frame.top, frame.left, frame.bottom, paint);
@@ -575,16 +726,173 @@ public class ViewfinderView extends View {
}
}
/**
* 绘制遮罩层
*
* @param canvas
* @param width
* @param height
*/
private void drawMask(Canvas canvas, int width, int height) {
if (maskColor != 0) {
paint.setColor(maskColor);
canvas.drawRect(0, 0, width, height, paint);
}
}
public void drawViewfinder() {
/**
* 根据结果点集合绘制结果点
*
* @param canvas
* @param points
*/
private void drawResultPoints(Canvas canvas, List<Point> points) {
paint.setColor(Color.WHITE);
if (points != null) {
for (Point point : points) {
drawResultPoint(canvas, point, currentZoomRatio);
}
}
}
/**
* 计算点的缩放动画
*/
private void calcZoomPointAnim() {
if (currentZoomRatio <= 1F) {
lastZoomRatio = currentZoomRatio;
currentZoomRatio += zoomSpeed;
if (zoomCount < 2) {
// 记住缩放回合次数
zoomCount++;
} else {
zoomCount = 0;
}
} else if (currentZoomRatio >= MAX_ZOOM_RATIO) {
lastZoomRatio = currentZoomRatio;
currentZoomRatio -= zoomSpeed;
} else {
if (lastZoomRatio > currentZoomRatio) {
lastZoomRatio = currentZoomRatio;
currentZoomRatio -= zoomSpeed;
} else {
lastZoomRatio = currentZoomRatio;
currentZoomRatio += zoomSpeed;
}
}
// 每间隔3秒触发一套缩放动画，一套动画缩放三个回合(即：每次zoomCount累加到2后重置为0时)
postInvalidateDelayed(zoomCount == 0 && lastZoomRatio == 1f ? 3000 : scannerAnimationDelay * 2);
}
/**
* 绘制结果点
*
* @param canvas
* @param point
*/
private void drawResultPoint(Canvas canvas, Point point, float currentZoomRatio) {
if (pointBitmap != null) {
float left = point.x - pointBitmap.getWidth() / 2.0f;
float top = point.y - pointBitmap.getHeight() / 2.0f;
canvas.drawBitmap(pointBitmap, left, top, paint);
} else {
paint.setColor(pointStrokeColor);
canvas.drawCircle(point.x, point.y, pointStrokeRadius * currentZoomRatio, paint);
paint.setColor(pointColor);
canvas.drawCircle(point.x, point.y, pointRadius * currentZoomRatio, paint);
}
}
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouchEvent(MotionEvent event) {
if (isShowPoints) {
gestureDetector.onTouchEvent(event);
}
return isShowPoints || super.onTouchEvent(event);
}
private boolean checkSingleTap(float x, float y) {
if (pointList != null) {
for (int i = 0; i < pointList.size(); i++) {
Point point = pointList.get(i);
float distance = getDistance(x, y, point.x, point.y);
if (distance <= pointRangeRadius) {
if (onItemClickListener != null) {
onItemClickListener.onItemClick(i);
}
return true;
}
}
}
return true;
}
/**
* 获取两点之间的距离
*
* @param x1
* @param y1
* @param x2
* @param y2
* @return
*/
private float getDistance(float x1, float y1, float x2, float y2) {
return (float) Math.sqrt(Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2));
}
/**
* 是否显示结果点
*
* @return
*/
public boolean isShowPoints() {
return isShowPoints;
}
/**
* 显示扫码动画
*/
public void showScanner() {
isShowPoints = false;
invalidate();
}
public void setLaserStyle(LaserStyle laserStyle) {
this.laserStyle = laserStyle;
/**
* 显示结果点
*
* @param points
*/
public void showResultPoints(List<Point> points) {
pointList = points;
isShowPoints = true;
zoomCount = 0;
lastZoomRatio = 0;
currentZoomRatio = 1;
invalidate();
}
/**
* 设置点击Item监听
*
* @param listener
*/
public void setOnItemClickListener(OnItemClickListener listener) {
onItemClickListener = listener;
}
/**
* Item点击监听
*/
public interface OnItemClickListener {
void onItemClick(int position);
}
}