Android 6.0权限错误

Question

我得到了这个错误：

getDeviceId: Neither user 10111 nor current process has android.permission.READ_PHONE_STATE.
   at android.os.Parcel.readException(Parcel.java:1599)
   at android.os.Parcel.readException(Parcel.java:1552)

Answer 1

是的，Android M上的权限已经更改，现在在运行时请求权限，而不是在Android M之前的安装时请求。

你可以在这里查文件

这个版本引入了一个新的权限模型，用户现在可以在运行时直接管理app权限。该模型为用户提供了更好的可见性和权限控制，同时简化了应用程序开发人员的安装和自动更新过程。用户可以单独授予或撤销已安装应用程序的权限。

有关在应用程序中支持新权限模型的详细信息，请参见使用系统权限。有关如何评估对应用程序的影响的提示，请参阅权限最佳实践。

要检查权限，您必须像下面这样进行检查，从github中摘取

public class MainActivity extends SampleActivityBase
        implements ActivityCompat.OnRequestPermissionsResultCallback {

    public static final String TAG = "MainActivity";

    /**
     * Id to identify a camera permission request.
     */
    private static final int REQUEST_CAMERA = 0;

    // Whether the Log Fragment is currently shown.
    private boolean mLogShown;

    private View mLayout;

    /**
     * Called when the 'show camera' button is clicked.
     * Callback is defined in resource layout definition.
     */
    public void showCamera(View view) {
        // Check if the Camera permission is already available.
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
                != PackageManager.PERMISSION_GRANTED) {
            // Camera permission has not been granted.

            requestCameraPermission();

        } else {

            // Camera permissions is already available, show the camera preview.
            showCameraPreview();
        }
    }

    /**
     * Requests the Camera permission.
     * If the permission has been denied previously, a SnackBar will prompt the user to grant the
     * permission, otherwise it is requested directly.
     */
    private void requestCameraPermission() {
        if (ActivityCompat.shouldShowRequestPermissionRationale(this,
                Manifest.permission.CAMERA)) {
            // Provide an additional rationale to the user if the permission was not granted
            // and the user would benefit from additional context for the use of the permission.
            // For example if the user has previously denied the permission.
            Snackbar.make(mLayout, R.string.permission_camera_rationale,
                    Snackbar.LENGTH_INDEFINITE)
                    .setAction(R.string.ok, new View.OnClickListener() {
                        @Override
                        public void onClick(View view) {
                            ActivityCompat.requestPermissions(MainActivity.this,
                                    new String[]{Manifest.permission.CAMERA},
                                    REQUEST_CAMERA);
                        }
                    })
                    .show();
        } else {

            // Camera permission has not been granted yet. Request it directly.
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA},
                    REQUEST_CAMERA);
        }
    }

    /**
     * Display the {@link CameraPreviewFragment} in the content area if the required Camera
     * permission has been granted.
     */
    private void showCameraPreview() {
        getSupportFragmentManager().beginTransaction()
                .replace(R.id.sample_content_fragment, CameraPreviewFragment.newInstance())
                .addToBackStack("contacts")
                .commit();
    }

    /**
     * Callback received when a permissions request has been completed.
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
            @NonNull int[] grantResults) {

        if (requestCode == REQUEST_CAMERA) {

            // Received permission result for camera permission.est.");
            // Check if the only required permission has been granted
            if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                // Camera permission has been granted, preview can be displayed
                Snackbar.make(mLayout, R.string.permision_available_camera,
                        Snackbar.LENGTH_SHORT).show();
            } else {
                Snackbar.make(mLayout, R.string.permissions_not_granted,
                        Snackbar.LENGTH_SHORT).show();

            }
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mLayout = findViewById(R.id.sample_main_layout);

        if (savedInstanceState == null) {
            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
            RuntimePermissionsFragment fragment = new RuntimePermissionsFragment();
            transaction.replace(R.id.sample_content_fragment, fragment);
            transaction.commit();
        }
    }
}