扫描二维码

做了一个扫描二维码识别信息的基本功能，现在将代码贴上，参考了以下文章，这片文章比较详细，需要更多功能的可以参考http://blog.csdn.net/wdd1324/article/details/72765843

    //扫描二维码
    compile 'com.journeyapps:zxing-android-embedded:3.5.0'

package monitormobile.com.ewm;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;
/** 
 * date: 2017/12/6 15:18 
 * autour: HelenChen
 * description: 扫描二维码
*/
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    private TextView tv_one;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tv_one = (TextView) findViewById(R.id.tv_one);
        tv_one.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.tv_one:
                // 创建IntentIntegrator对象
                IntentIntegrator intentIntegrator = new IntentIntegrator(MainActivity.this);
                //设置自定义扫描Activity
                intentIntegrator.setCaptureActivity(CustomCaptureActivity.class);
                // 开始扫描
                intentIntegrator.initiateScan();
                break;
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // 获取解析结果
        IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
        if (result != null) {
            if (result.getContents() == null) {
                Toast.makeText(this, "取消扫描", Toast.LENGTH_LONG).show();
            } else {
                Toast.makeText(this, "扫描成功", Toast.LENGTH_LONG).show();
                LogUtils.i("Splash扫描内容" + result.getContents());
            }
        } else {
            super.onActivityResult(requestCode, resultCode, data);
        }
    }
}

package monitormobile.com.ewm;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;

import com.journeyapps.barcodescanner.CaptureManager;
import com.journeyapps.barcodescanner.DecoratedBarcodeView;

/**
 * date: 2017/8/24 13:28
 * autour: HelenChen
 * description: 自定义扫描器
 * version: V1.0
 *
 * @Copyright：
 */

public class CustomCaptureActivity extends AppCompatActivity {
    /**
     * 条形码扫描管理器
     */
    private CaptureManager mCaptureManager;
    /**
     * 条形码扫描视图
     */
    private DecoratedBarcodeView mBarcodeView;
    private TextView tv_title_name;
    private ImageView iv_title_back;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 将activity设置为全屏显示
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_zxing_layout);
        mBarcodeView = (DecoratedBarcodeView) findViewById(R.id.zxing_barcode_scanner);
        tv_title_name = (TextView) findViewById(R.id.tv_title_name);
        iv_title_back = (ImageView) findViewById(R.id.iv_title_back);
//        mBarcodeView = (DecoratedBarcodeView)findViewById(com.google.zxing.client.android.R.id.zxing_barcode_scanner);

        mCaptureManager = new CaptureManager(this, mBarcodeView);
        mCaptureManager.initializeFromIntent(getIntent(), savedInstanceState);
        mCaptureManager.decode();
        tv_title_name.setText("扫描二维码");
        iv_title_back.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });
    }

    @Override
    protected void onResume() {
        super.onResume();
        mCaptureManager.onResume();
    }

    @Override
    protected void onPause() {
        super.onPause();
        mCaptureManager.onPause();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mCaptureManager.onDestroy();
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mCaptureManager.onSaveInstanceState(outState);
    }

    /**
     * 权限处理
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
        mCaptureManager.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }

    /**
     * 按键处理
     */
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        return mBarcodeView.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event);
    }
}

package monitormobile.com.ewm;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Rect;
import android.graphics.Shader;
import android.util.AttributeSet;
import android.util.TypedValue;

import com.google.zxing.ResultPoint;
import com.journeyapps.barcodescanner.ViewfinderView;

import java.util.ArrayList;
import java.util.List;

/**
 * date: 2017/8/24 14:07
 * autour: HelenChen
 * description: 自定义扫描样式
 * version: V1.0
 * @Copyright：
*/
public class CustomViewfinderView extends ViewfinderView {

    /**
     * 重绘时间间隔
     */
    public static final long CUSTOME_ANIMATION_DELAY = 16;

    /* ******************************************    边角线相关属性    ************************************************/

    /**
     * "边角线长度/扫描边框长度"的占比 (比例越大，线越长)
     */
    public float mLineRate = 0.1F;

    /**
     * 边角线厚度 (建议使用dp)
     */
    public float mLineDepth =  TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources().getDisplayMetrics());

    /**
     * 边角线颜色
     */
    public int mLineColor = Color.WHITE;

    /* *******************************************    扫描线相关属性    ************************************************/

    /**
     * 扫描线起始位置
     */
    public int mScanLinePosition = 0;

    /**
     * 扫描线厚度
     */
    public float mScanLineDepth = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources().getDisplayMetrics());

    /**
     * 扫描线每次重绘的移动距离
     */
    public float mScanLineDy = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 3, getResources().getDisplayMetrics());

    /**
     * 线性梯度
     */
    public LinearGradient mLinearGradient;

    /**
     * 线性梯度位置
     */
    public float[] mPositions = new float[]{0f, 0.5f, 1f};

    /**
     * 线性梯度各个位置对应的颜色值
     */
    public int[] mScanLineColor = new int[]{0x00FFFFFF, Color.WHITE, 0x00FFFFFF};


    public CustomViewfinderView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public void onDraw(Canvas canvas) {
        refreshSizes();
        if (framingRect == null || previewFramingRect == null) {
            return;
        }

        Rect frame = framingRect;
        Rect previewFrame = previewFramingRect;

        int width = canvas.getWidth();
        int height = canvas.getHeight();

        //绘制4个角
        paint.setColor(mLineColor); // 定义画笔的颜色
        canvas.drawRect(frame.left, frame.top, frame.left + frame.width() * mLineRate, frame.top + mLineDepth, paint);
        canvas.drawRect(frame.left, frame.top, frame.left + mLineDepth, frame.top + frame.height() * mLineRate, paint);

        canvas.drawRect(frame.right - frame.width() * mLineRate, frame.top, frame.right, frame.top + mLineDepth, paint);
        canvas.drawRect(frame.right - mLineDepth, frame.top, frame.right, frame.top + frame.height() * mLineRate, paint);

        canvas.drawRect(frame.left, frame.bottom - mLineDepth, frame.left + frame.width() * mLineRate, frame.bottom, paint);
        canvas.drawRect(frame.left, frame.bottom - frame.height() * mLineRate, frame.left + mLineDepth, frame.bottom, paint);

        canvas.drawRect(frame.right - frame.width() * mLineRate, frame.bottom - mLineDepth, frame.right, frame.bottom, paint);
        canvas.drawRect(frame.right - mLineDepth, frame.bottom - frame.height() * mLineRate, frame.right, frame.bottom, paint);

        // Draw the exterior (i.e. outside the framing rect) darkened
        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(CURRENT_POINT_OPACITY);
            canvas.drawBitmap(resultBitmap, null, frame, paint);
        } else {
            // 绘制扫描线
            mScanLinePosition += mScanLineDy;
            if(mScanLinePosition > frame.height()){
                mScanLinePosition = 0;
            }
            mLinearGradient = new LinearGradient(frame.left, frame.top + mScanLinePosition, frame.right, frame.top + mScanLinePosition, mScanLineColor, mPositions, Shader.TileMode.CLAMP);
            paint.setShader(mLinearGradient);
            canvas.drawRect(frame.left, frame.top + mScanLinePosition, frame.right, frame.top + mScanLinePosition + mScanLineDepth, paint);
            paint.setShader(null);

            float scaleX = frame.width() / (float) previewFrame.width();
            float scaleY = frame.height() / (float) previewFrame.height();

            List currentPossible = possibleResultPoints;
            List currentLast = lastPossibleResultPoints;
            int frameLeft = frame.left;
            int frameTop = frame.top;
            if (currentPossible.isEmpty()) {
                lastPossibleResultPoints = null;
            } else {
                possibleResultPoints = new ArrayList<>(5);
                lastPossibleResultPoints = currentPossible;
                paint.setAlpha(CURRENT_POINT_OPACITY);
                paint.setColor(resultPointColor);
                for (ResultPoint point : currentPossible) {
                    canvas.drawCircle(frameLeft + (int) (point.getX() * scaleX),
                            frameTop + (int) (point.getY() * scaleY),
                            POINT_SIZE, paint);
                }
            }
            if (currentLast != null) {
                paint.setAlpha(CURRENT_POINT_OPACITY / 2);
                paint.setColor(resultPointColor);
                float radius = POINT_SIZE / 2.0f;
                for (ResultPoint point : currentLast) {
                    canvas.drawCircle(frameLeft + (int) (point.getX() * scaleX),
                            frameTop + (int) (point.getY() * scaleY),
                            radius, paint);
                }
            }
        }

        // Request another update at the animation interval, but only repaint the laser line,
        // not the entire viewfinder mask.
        postInvalidateDelayed(CUSTOME_ANIMATION_DELAY,
                frame.left,
                frame.top,
                frame.right,
                frame.bottom);
    }
}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="monitormobile.com.ewm.MainActivity">

    <TextView
        android:id="@+id/tv_one"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        android:background="@color/colorPrimaryDark"
        android:padding="20dp"/>
RelativeLayout>

activity_zxing_layout.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <RelativeLayout
        android:id="@+id/rl_title_root"
        android:layout_width="match_parent"
        android:layout_height="@dimen/dimen130"
        android:background="@color/color_blue_one">


        <ImageView
            android:id="@+id/iv_title_back"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:padding="@dimen/dimen30"
            android:src="@drawable/white_back" />

        <TextView
            android:id="@+id/tv_title_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:text="扫描二维码"
            android:textColor="@color/white"
            android:textSize="@dimen/dimen52" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="@dimen/dimen1"
            android:layout_alignParentBottom="true"
            android:background="@color/textcolor_title_line" />
    RelativeLayout>

    <com.journeyapps.barcodescanner.DecoratedBarcodeView
        android:id="@+id/zxing_barcode_scanner"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center_vertical"
        app:zxing_framing_rect_height="300dp"
        app:zxing_framing_rect_width="300dp"
        app:zxing_preview_scaling_strategy="centerCrop"
        app:zxing_scanner_layout="@layout/custom_barcode_scanner"
        app:zxing_use_texture_view="true" />


LinearLayout>

custom_barcode_scanner.xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.journeyapps.barcodescanner.BarcodeView
        android:id="@+id/zxing_barcode_surface"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <monitormobile.com.ewm.CustomViewfinderView
        android:id="@+id/zxing_viewfinder_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <TextView
        android:id="@+id/zxing_status_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="120dp"
        android:background="@color/transparent"
        android:text="扫描二维码"
        android:textColor="@color/map_pop_line" />

FrameLayout>

   
        <activity
            android:name=".CustomCaptureActivity"
            android:configChanges="keyboardHidden|orientation"
            android:launchMode="standard"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="adjustPan|stateHidden"
            tools:replace="screenOrientation" />