android 扫描二维码

http://blog.youkuaiyun.com/qq_28057541/article/details/52034988

http://blog.youkuaiyun.com/sankoshine/article/details/50823238?skin=ink

扫描框自定义仿微信样式http://download.youkuaiyun.com/detail/z_zt_t/9659802

gradle文件引用

dependencies {
    compile 'com.google.zxing:core:3.3.0'
    compile 'com.journeyapps:zxing-android-embedded:3.3.0'
}

扫描返回结果

@Override
    // 通过 onActivityResult的方法获取 扫描回来的 值   扫描二维码返回
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        try {
            IntentResult intentResult = IntentIntegrator.parseActivityResult(requestCode,resultCode,data);
            if(intentResult != null) {
                if(intentResult.getContents() != null) {
                    // ScanResult 为 获取到的字符串
                    String ScanResult = intentResult.getContents();
                    HLog.v(TAG,"ScanResult",ScanResult);
                    //扫描二维码
                    if(!TextUtils.isEmpty(ScanResult)){
                        isScanHandler.removeMessages(0);
                        HkApplication.toWebView(ScanResult,MainActivity.this);
                    }else{
                        
                    }

                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

跳转到扫描二维码activity

// 你也可以使用简单的扫描功能，但是一般扫描的样式和行为都是可以自定义的，这里就写关于自定义的代码了
    // 你可以把这个方法作为一个点击事件
    public void customScan(){
        new IntentIntegrator(this)
                .setOrientationLocked(false)
                .setCaptureActivity(ZxingScanActivity.class) // 设置自定义的activity是CustomActivity
                .initiateScan(); // 初始化扫描
        isScanHandler.sendEmptyMessageDelayed(0,30000);//30秒未扫描到，提示
    }

扫描二维码activity

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.PersistableBundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.widget.TextView;

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

/**
 * 扫描二维码
 * Created by ypp on 2017/4/8.
 */

public class ZxingScanActivity extends Activity implements View.OnClickListener{
    private final String TAG="ZxingScanActivity";
    private CaptureManager captureManager;//扫描
    private DecoratedBarcodeView dbv_custom;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_zxing_scan);
        dbv_custom=(DecoratedBarcodeView)findViewById(R.id.dbv_custom);

        //重要代码，初始化捕获
        captureManager = new CaptureManager(this,dbv_custom);
        captureManager.initializeFromIntent(getIntent(),savedInstanceState);
        captureManager.decode();
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                finish();
            }
        },29000);
    }

    @Override
    public void onSaveInstanceState(Bundle outState, PersistableBundle outPersistentState) {
        super.onSaveInstanceState(outState, outPersistentState);
        captureManager.onSaveInstanceState(outState);
    }
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        return dbv_custom.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event);
    }
    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.left_btn:
                finish();
                break;
        }
    }

}

布局文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@color/black">
    <RelativeLayout
        android:id="@+id/title_layout"
        style="@style/title_bar_layout_style"
        android:background="@drawable/title_bar_bg">


        <TextView
            android:id="@+id/title"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:text="@string/scan_for_awhile"
            android:textColor="@color/white"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/left_btn"
            style="@style/title_back_btn_style"
            android:layout_width="55dip"
            android:layout_height="match_parent" />
    </RelativeLayout>
    <SurfaceView
        android:id="@+id/surfaceview"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:layout_below="@id/title_layout"/>
    <!-- 这个控件就是扫描的窗口了 -->
    <com.journeyapps.barcodescanner.DecoratedBarcodeView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/dbv_custom"
        app:zxing_framing_rect_width="200dp"
        app:zxing_framing_rect_height="200dp"
        app:zxing_preview_scaling_strategy="fitXY"
        app:zxing_use_texture_view="true"
        android:layout_centerInParent="true"
        android:layout_below="@id/title_layout"/>
</RelativeLayout>