写了一个纯净的demo来试用EasyPermissions，代码贴出来，在申请权限的这句EasyPermissions.hasPermissions(this, perms)，返回的永远都是true，百思不得其解，各路大神多多指教

public class TestActivity extends AppCompatActivity implements EasyPermissions.PermissionCallbacks{

    public final static String TAG = TestActivity.class.getSimpleName();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);

        TextView t = findViewById(R.id.textView_top_title);
        t.setText("测试页面");
        findViewById(R.id.button_login).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                requestPermissions();
            }
        });


    }
    private static final int RC_CAMERA_AND_RECORD_AUDIO = 10000;
    /**
     * 去申请权限
     */
    private void requestPermissions() {
        String[] perms = {Manifest.permission.CAMERA, Manifest.permission.ACCESS_FINE_LOCATION};

        //判断有没有权限
        if (EasyPermissions.hasPermissions(this, perms)) {
            // 如果有权限了, 就做你该做的事情
            openCamera();
        } else {
            // 如果没有权限, 就去申请权限
            // this: 上下文
            // Dialog显示的正文
            // RC_CAMERA_AND_RECORD_AUDIO 请求码, 用于回调的时候判断是哪次申请
            // perms 就是你要申请的权限
            EasyPermissions.requestPermissions(this, "写上你需要用权限的理由, 是给用户看的", RC_CAMERA_AND_RECORD_AUDIO, perms);
        }
    }

    private void openCamera(){
        Toast.makeText(this, "成功打开摄像机", Toast.LENGTH_SHORT)
                .show();
    }


    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == AppSettingsDialog.DEFAULT_SETTINGS_REQ_CODE) {
            // Do something after user returned from app settings screen, like showing a Toast.
            Toast.makeText(this, "授权结果回调了", Toast.LENGTH_SHORT)
                    .show();
        }
    }





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

        // Forward results to EasyPermissions
        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
    }

    @Override
    public void onPermissionsGranted(int requestCode, List<String> list) {
        // Some permissions have been granted
        Log.d(TAG, "onPermissionsGranted:" + requestCode + ":" + list.size());
    }

    @Override
    public void onPermissionsDenied(int requestCode, List<String> list) {
        Log.d(TAG, "onPermissionsDenied:" + requestCode + ":" + list.size());

        // (Optional) Check whether the user denied any permissions and checked "NEVER ASK AGAIN."
        // This will display a dialog directing them to enable the permission in app settings.
        if (EasyPermissions.somePermissionPermanentlyDenied(this, list)) {
            new AppSettingsDialog.Builder(this).build().show();
        }
    }
}