Android 识别图片二维码，以及设置状态栏颜色

zxing依赖：

compile 'cn.yipianfengye.android:zxing-library:2.2'

初始化：private String SAVE_PIC_PATH = Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED)? Environment.getExternalStorageDirectory().getAbsolutePath() : "/mnt/sdcard";//private String SAVE_REAL_PATH = SAVE_PIC_PATH + "/good/savePic";//保存的确
Bitmap bitmap;
private String ends;

实现长按识别图片二维码：

      imageView.setOnLongClickListener(new View.OnLongClickListener() {@Overridepublic boolean onLongClick(View view) {try {Bitmap bmp = captureScreen(MainActivity.this);saveFile(bmp, System.currentTimeMillis() + ".png");try {CodeUtils.analyzeBitmap(ends, new CodeUtils.AnalyzeCallback() {@Overridepublic void onAnalyzeSuccess(Bitmap mBitmap, String result) {
//                            imageView.setImageBitmap(mBitmap);Toast.makeText(MainActivity.this, "解析结果:" + result, Toast.LENGTH_LONG).show();}@Overridepublic void onAnalyzeFailed() {Toast.makeText(MainActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show();}});} catch (Exception e) {e.printStackTrace();}} catch (IOException e) {e.printStackTrace();}return false;}});

工具方法1：

    private void saveFile(Bitmap bm, String fileName) throws IOException {String subForder = SAVE_REAL_PATH;File foder = new File(subForder);if (!foder.exists()) foder.mkdirs();File myCaptureFile = new File(subForder, fileName);Log.e("lgq", "图片保持。。。。wwww。。。。" + myCaptureFile);ends = myCaptureFile.getPath();if (!myCaptureFile.exists()) myCaptureFile.createNewFile();BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));bm.compress(Bitmap.CompressFormat.JPEG, 100, bos);bos.flush();bos.close();
//        ToastUtil.showSuccess(getApplicationContext(), "已保存在/good/savePic目录下", Toast.LENGTH_SHORT);//发送广播通知系统}

工具方法2：

@SuppressLint("NewApi")
private Bitmap captureScreen(Activity context) {
View cv = context.getWindow().getDecorView();

    cv.setDrawingCacheEnabled(true);
    cv.buildDrawingCache();
    Bitmap bmp = cv.getDrawingCache();
    if (bmp == null) {
        return null;
    }

    bmp.setHasAlpha(false);
    bmp.prepareToDraw();
    return bmp;
}

权限：

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

Android6.0以上申请权限：

public final class CheckPermissionUtils {private CheckPermissionUtils() {}//需要申请的权限private static String[] permissions = new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.CAMERA};//检测权限public static String[] checkPermission(Context context){List<String> data = new ArrayList<>();//存储未申请的权限for (String permission : permissions) {int checkSelfPermission = ContextCompat.checkSelfPermission(context, permission);if(checkSelfPermission == PackageManager.PERMISSION_DENIED){//未申请data.add(permission);}}return data.toArray(new String[data.size()]);}
}

/*** 初始化权限事件*/
private void initPermission() {//检查权限String[] permissions = CheckPermissionUtils.checkPermission(this);if (permissions.length == 0) {//权限都申请了//是否登录} else {//申请权限ActivityCompat.requestPermissions(this, permissions, 100);}
}