Zxing二维码的集成使用

在github网站搜索Zxing

详见:https://github.com/yipianfengye/android-zxingLibrary

在module的build.gradle中执行compile操作

compile 'cn.yipianfengye.android:zxing-library:2.1'

 在Activity或者Application onCreate()中执行初始化操作

　　@Override
    public void onCreate() {
        super.onCreate();

        ZXingLibrary.initDisplayOpinion(this);
    }

 添加权限:

    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.VIBRATE"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

 代码实现:

package com.loaderman.zxingdemo;

import android.content.ContentResolver;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Toast;

import com.uuzuche.lib_zxing.activity.CaptureActivity;
import com.uuzuche.lib_zxing.activity.CodeUtils;
import com.uuzuche.lib_zxing.activity.ZXingLibrary;

public class MainActivity extends AppCompatActivity {

    private static final int REQUEST_CODE  = 10;
    private static final int REQUEST_IMAGE = 20;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ZXingLibrary.initDisplayOpinion(this);
        findViewById(R.id.btn_create).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(MainActivity.this,CreateActviity.class));

            }
        });
        findViewById(R.id.btn_open).setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {//集成默认的二维码扫描页面
                Intent intent = new Intent(MainActivity.this, CaptureActivity.class);
                startActivityForResult(intent, REQUEST_CODE);
            }
        });
        findViewById(R.id.btn_openPictrue).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {//集成对二维码图片的解析功能
                Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("image/*");
                startActivityForResult(intent, REQUEST_IMAGE);
            }
        });
        findViewById(R.id.btn_zidingyi).setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                startActivity(new Intent(MainActivity.this,MyZxingActviity.class));//定制化显示扫描UI
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        if (requestCode == REQUEST_CODE) {
            //处理扫描结果（在界面上显示）
            if (null != data) {
                Bundle bundle = data.getExtras();
                if (bundle == null) {
                    return;
                }
                if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_SUCCESS) {
                    String result = bundle.getString(CodeUtils.RESULT_STRING);
                    Toast.makeText(this, "解析结果:" + result, Toast.LENGTH_LONG).show();
                } else if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_FAILED) {
                    Toast.makeText(MainActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show();
                }
            }
        }
        if (requestCode == REQUEST_IMAGE) {
            if (data != null) {
                Uri uri = data.getData();
                ContentResolver cr = getContentResolver();
                try {
                    Bitmap mBitmap = MediaStore.Images.Media.getBitmap(cr, uri);//显得到bitmap图片
                    String path = ImageUtil.getImageAbsolutePath(this, uri);
                    CodeUtils.analyzeBitmap(path, new CodeUtils.AnalyzeCallback() {
                        @Override
                        public void onAnalyzeSuccess(Bitmap mBitmap, String result) {
                            Toast.makeText(MainActivity.this, "解析结果:" + result, Toast.LENGTH_LONG).show();
                        }

                        @Override
                        public void onAnalyzeFailed() {
                            Toast.makeText(MainActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show();
                        }
                    });

                    if (mBitmap != null) {
                        mBitmap.recycle();
                    }
                } catch (Exception e) {
                    e.printStackTrace();

                }
            }
        }
    }
}

 activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    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:orientation="vertical"
    android:gravity="center"
    tools:context="com.loaderman.zxingdemo.MainActivity">
    <Button
        android:id="@+id/btn_open"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="开始扫描二维码"/>
    <Button
        android:layout_width="wrap_content"
        android:id="@+id/btn_openPictrue"
        android:text="打开图库解析图片二维码"
        android:layout_height="wrap_content"/>
    <Button
        android:layout_width="wrap_content"
        android:id="@+id/btn_zidingyi"
        android:text="自定义布局UI扫描二维码"
        android:layout_height="wrap_content"/>
    <Button
        android:layout_width="wrap_content"
        android:id="@+id/btn_create"
        android:text="生成二维码"
        android:layout_height="wrap_content"/>
</LinearLayout>

package com.loaderman.zxingdemo;

import android.annotation.TargetApi;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;



public class ImageUtil {
    /**
     * 根据Uri获取图片绝对路径，解决Android4.4以上版本Uri转换
     *
     * @param context
     * @param imageUri
     */
    @TargetApi(19)
    public static String getImageAbsolutePath(Context context, Uri imageUri) {
        if (context == null || imageUri == null)
            return null;
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT && DocumentsContract.isDocumentUri(context, imageUri)) {
            if (isExternalStorageDocument(imageUri)) {
                String docId = DocumentsContract.getDocumentId(imageUri);
                String[] split = docId.split(":");
                String type = split[0];
                if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/" + split[1];
                }
            } else if (isDownloadsDocument(imageUri)) {
                String id = DocumentsContract.getDocumentId(imageUri);
                Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                return getDataColumn(context, contentUri, null, null);
            } else if (isMediaDocument(imageUri)) {
                String docId = DocumentsContract.getDocumentId(imageUri);
                String[] split = docId.split(":");
                String type = split[0];
                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }
                String selection = MediaStore.Images.Media._ID + "=?";
                String[] selectionArgs = new String[]{split[1]};
                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        } // MediaStore (and general)
        else if ("content".equalsIgnoreCase(imageUri.getScheme())) {
            // Return the remote address
            if (isGooglePhotosUri(imageUri)) {
                return imageUri.getLastPathSegment();
            }
            //return getDataColumn(context, imageUri, null, null);
            return getRealPathFromUri(context, imageUri);
        }
        // File
        else if ("file".equalsIgnoreCase(imageUri.getScheme())) {
            return imageUri.getPath();
        }
        return null;
    }

    public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
        Cursor cursor = null;
        String column = MediaStore.Images.Media.DATA;
        String[] projection = {column};
        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
            if (cursor != null && cursor.moveToFirst()) {
                int index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    public static String getRealPathFromUri(Context context, Uri contentUri) {
        Cursor cursor = null;
        try {
            String[] proj = { MediaStore.Images.Media.DATA };
            cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            cursor.moveToFirst();
            return cursor.getString(column_index);
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is Google Photos.
     */
    public static boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }
}

package com.loaderman.zxingdemo;

import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

import com.uuzuche.lib_zxing.activity.CaptureFragment;
import com.uuzuche.lib_zxing.activity.CodeUtils;

public class MyZxingActviity extends AppCompatActivity {
    private boolean flag = false;
    private Button btnLight;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my_zxing_actviity);
        btnLight = (Button) findViewById(R.id.btn_light);

        btnLight.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (flag) {
                    //关闭闪光灯
                    CodeUtils.isLightEnable(false);
                    flag = false;
                } else {
                    // 打开闪光灯
                    flag = true;
                    CodeUtils.isLightEnable(true);

                }
            }
        });
        findViewById(R.id.btn_cancel).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
        /**
         * 执行扫面Fragment的初始化操作
         */
        CaptureFragment captureFragment = new CaptureFragment();
        // 为二维码扫描界面设置定制化界面
        CodeUtils.setFragmentArgs(captureFragment, R.layout.my_camera);

        captureFragment.setAnalyzeCallback(analyzeCallback);
        /**
         * 替换自定义扫描控件
         */
        getSupportFragmentManager().beginTransaction().replace(R.id.fl_my_container, captureFragment).commit();
    }

    /**
     * 二维码解析回调函数
     */
    CodeUtils.AnalyzeCallback analyzeCallback = new CodeUtils.AnalyzeCallback() {
        @Override
        public void onAnalyzeSuccess(Bitmap mBitmap, String result) {
            Intent resultIntent = new Intent();
            Bundle bundle = new Bundle();
            bundle.putInt(CodeUtils.RESULT_TYPE, CodeUtils.RESULT_SUCCESS);
            bundle.putString(CodeUtils.RESULT_STRING, result);
            resultIntent.putExtras(bundle);
            MyZxingActviity.this.setResult(RESULT_OK, resultIntent);
            MyZxingActviity.this.finish();
        }

        @Override
        public void onAnalyzeFailed() {
            Intent resultIntent = new Intent();
            Bundle bundle = new Bundle();
            bundle.putInt(CodeUtils.RESULT_TYPE, CodeUtils.RESULT_FAILED);
            bundle.putString(CodeUtils.RESULT_STRING, "");
            resultIntent.putExtras(bundle);
            MyZxingActviity.this.setResult(RESULT_OK, resultIntent);
            MyZxingActviity.this.finish();
        }
    };
}

 activity_my_zxing_actviity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_my_zxing_actviity"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.loaderman.zxingdemo.MyZxingActviity">
    <FrameLayout
        android:layout_weight="1"
        android:id="@+id/fl_my_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        ></FrameLayout>
    <Button
        android:id="@+id/btn_cancel"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="取消"
        android:layout_marginTop="20dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginBottom="10dp"
        android:layout_gravity="bottom|center_horizontal"
        />
    <Button
        android:id="@+id/btn_light"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="闪光灯控制"
        android:layout_marginTop="20dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginBottom="10dp"
        android:layout_gravity="bottom|center_horizontal"
        />
</LinearLayout>

 my_camera.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
             xmlns:app="http://schemas.android.com/apk/res-auto"
             android:layout_width="fill_parent"
             android:layout_height="fill_parent" >
    <SurfaceView
        android:id="@+id/preview_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
    <com.uuzuche.lib_zxing.view.ViewfinderView
        android:id="@+id/viewfinder_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:inner_width="200dp"
        app:inner_height="200dp"
        app:inner_margintop="150dp"
        app:inner_corner_color="#f00"
        app:inner_corner_length="30dp"
        app:inner_corner_width="5dp"
        app:inner_scan_bitmap="@drawable/ic_launcher"
        app:inner_scan_speed="10"
        app:inner_scan_iscircle="false"
        />

</FrameLayout>

 生成二维码图片

package com.loaderman.zxingdemo;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.uuzuche.lib_zxing.activity.CodeUtils;

public class CreateActviity extends AppCompatActivity {

    private TextView editText;
    private ImageView iv;
    private Bitmap mBitmap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_create_actviity);
        editText = (TextView) findViewById(R.id.et_text);
        iv = (ImageView) findViewById(R.id.iv);
        findViewById(R.id.btn_logo).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {//生成带Logo的二维码图片
                String textContent = editText.getText().toString();
                if (TextUtils.isEmpty(textContent)) {
                    Toast.makeText(CreateActviity.this, "您的输入为空!", Toast.LENGTH_SHORT).show();
                    return;
                }
                editText.setText("");
                 mBitmap =   CodeUtils.createImage(textContent, 400, 400, BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher));
                iv.setImageBitmap(mBitmap);
            }
        });
        findViewById(R.id.btn_no_logo).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {//生成不带logo的二维码图片
                String textContent = editText.getText().toString();
                if (TextUtils.isEmpty(textContent)) {
                    Toast.makeText(CreateActviity.this, "您的输入为空!", Toast.LENGTH_SHORT).show();
                    return;
                }
                editText.setText("");
                mBitmap = CodeUtils.createImage(textContent, 400, 400, null);
                iv.setImageBitmap(mBitmap);
            }
        });

    }
}

 activity_create_actviity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_create_actviity"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.loaderman.zxingdemo.CreateActviity">
   <EditText
       android:id="@+id/et_text"
       android:layout_width="match_parent"
       android:text="输入要生成的二维码内容"
       android:layout_height="wrap_content"/>
    <Button
        android:id="@+id/btn_logo"
        android:text="生成带Logo的二维码"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>
    <Button
        android:id="@+id/btn_no_logo"
        android:text="生成不带logo的二维码"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>
    <ImageView
        android:id="@+id/iv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
</LinearLayout>

 效果图: