只需要兩步走： 一、程式碼請求許可權

 /**

 * android6.0執行時許可權,檢測
*/
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {//6.0以上
int checkPermission = checkSelfPermission(Manifest.permission.CAMERA);
   if (checkPermission != PackageManager.PERMISSION_GRANTED) {
      requestPermissions(new String[]{Manifest.permission.CAMERA
 
}, 1);//後面的1為請求碼
      return;
} else {
      initCamera(holder);//zxing二維碼掃描，需要攝像頭許可權
}
} else {//6.0以下
initCamera(holder); //zxing二維碼掃描，需要攝像頭許可權}

二、處理許可權的結果

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

    switch (requestCode) {//
 
請求碼
case 1:
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {//允許
                // Permission Granted
mLocationClient.startLocation();
} else {//禁止
                ToastUtil.showToast(getApplicationContext(), "定位許可權被禁止");
}

            break;
        default:
            super.onRequestPermissionsResult(requestCode, 
 
permissions, grantResults);
}