Android开放式摄像机权限拒绝

我想在单击对话框中的某个项目时打开相机，但出现如下错误。我一直在向

manifest.xml

添加摄像头权限

java.lang.SecurityException:权限拒绝：从ProcessRecord{b42fcde 29884:ukmutilizer.project.com.ukm_utilizer/u0a273}（pid=29884，uid=10273）启动意图{act=android.media.action.IMAGE_CAPTURE cmp=com.sonyericsson.android.camera/.MultiWindowActivity}，并撤销权限android.Permission.camera

这是我的职责

public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.personal_data_step, container, false);
    ButterKnife.bind(this, view);

    imageEktp.setClickable(true);

    imageEktp.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //Log.d("test : ", "testing");
            CharSequence menu[] = new CharSequence[]{"Take From Galery", "Open Camera"};
            AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
            builder.setTitle("Pick a Picture");
            builder.setItems(menu, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {
                    if(i == 0){
                        Toast.makeText(getActivity(), "galery", Toast.LENGTH_SHORT).show();
                    }else{
                        Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
                        startActivity(intent);
                    }
                }
            });
            builder.show();
        }
    });

    return view;
}

---

确保向用户请求运行时

摄像机权限

private static final int CAMERA_REQUEST_CODE = 100;

如果未授予，请请求许可

if (checkSelfPermission(Manifest.permission.CAMERA)
                        != PackageManager.PERMISSION_GRANTED) {
       requestPermissions(new String[]{Manifest.permission.CAMERA},
                            CAMERA_REQUEST_CODE);
}

在onRequestPermissionsResult中执行

操作

@Override

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

        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        if (requestCode == CAMERA_REQUEST_CODE) {

            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                Toast.makeText(this, "Camera permission granted.", Toast.LENGTH_LONG).show();

               // Do stuff here for Action Image Capture.

            } else {

                Toast.makeText(this, "Camera permission denied.", Toast.LENGTH_LONG).show();

            }

        }
    }

这也应该在
清单中声明。
您必须获得运行时权限，然后才能访问您的相机

像

明显地

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

用户必须确认权限请求。

试一试

当您在6.0以上版本中运行应用程序时，如棉花糖设备，则需要权限，否则无需权限。
那时候你的代码可以工作了

如果运行棉花糖设备的时候需要许可，那么就做下面的代码

private void alertDialog(){
    CharSequence menu[] = new CharSequence[]{"Take From Galery", "Open Camera"};
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle("Pick a Picture");
    builder.setItems(menu, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialogInterface, int i) {
            if(i == 0){
                Toast.makeText(getApplicationContext(), "galery", Toast.LENGTH_SHORT).show();
            }else{
                Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
                startActivity(intent);
            }
        }
    });
    builder.show();

}

然后上面的方法放入权限代码，如下所示

if (ContextCompat.checkSelfPermission(webView.this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(webView.this, Manifest.permission.CAMERA)) {

                    alertDialog();
                }
                else{
                    ActivityCompat.requestPermissions(webView.this, new String[] { Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE }, 0);
                }
            }

将两个权限添加到清单文件中

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

你有什么版本的安卓？你给相机运行时的权限吗？可能的副本请接受答案，如果它解决了你的问题。因此，未来用户可以立即使用此解决方案！！
if (ContextCompat.checkSelfPermission(webView.this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(webView.this, Manifest.permission.CAMERA)) {

                    alertDialog();
                }
                else{
                    ActivityCompat.requestPermissions(webView.this, new String[] { Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE }, 0);
                }
            }

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

if (ContextCompat.checkSelfPermission(webView.this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(webView.this, Manifest.permission.CAMERA)) {

                    alertDialog();
                }
                else{
                    ActivityCompat.requestPermissions(webView.this, new String[] { Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE }, 0);
                }
            }