关于Android 6.0动态申请读写权限

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定义要申请的权限：

private static String[] PERMISSIONS_STORAGE = {
            Manifest.permission.READ_EXTERNAL_STORAGE,
            Manifest.permission.WRITE_EXTERNAL_STORAGE};
private static int REQUEST_CODE = 1;

判断当前版本：

 //判断当前版本
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                ActivityCompat.requestPermissions(this, PERMISSIONS_STORAGE, REQUEST_CODE);//requesrCode
            } else {
                Log.d(TAG, "已有权限");
            }
        } else {
            Log.d(TAG, "小于 6.0");
        }

 

权限的回调：

@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == REQUEST_CODE) {
            for (int i = 0; i < permissions.length; i++) {
                if (grantResults[i] == 0) {
                    Log.d(TAG, "获取权限成功");
                    perSucceed();
                } else {
                    Log.d(TAG, "获取权限失败");
                    ToastUtils.showToast(mContext, "权限被拒绝,连接USB设备终止");
                }
            }
        }
    }