Question

我有一个本机应用程序，我使用这个java代码来检查相机权限：

int permission = PermissionChecker.checkSelfPermission(getReactApplicationContext(), Manifest.permission.CAMERA);

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

promise.resolve(permission);

在Android 6.0上，当相机权限关闭时，本机权限弹出窗口显示感谢requestPermissions函数。

但是，它并没有在Android 7.0上显示。

我检查了结果：

ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.CAMERA)

Android 6.0和7.0上的错误

感谢您的回答，

Answer 1

这是我们在处理权限时检查和管理所有最终用户输入的方式，只需更改为您要处理的权限

首先检查

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
        } else {
            requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 666);  // Comment 26
        }
    }

然后管理最终用户输入

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

    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode) {

        case 666: // User selected Allowed  Permission Granted
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                Snackbar s = Snackbar.make(findViewById(android.R.id.content), "Permission Granted", Snackbar.LENGTH_LONG);
                View snackbarView = s.getView();
                snackbarView.setBackgroundColor(Color.WHITE);
                TextView textView = (TextView) snackbarView.findViewById(android.support.design.R.id.snackbar_text);
                textView.setTextColor(Color.RED);
                textView.setTextSize(18);
                textView.setMaxLines(6);
                s.show();

                // do your work here

                // User selected the Never Ask Again Option Change settings in app settings manually
            } else if (Build.VERSION.SDK_INT >= 23 && !shouldShowRequestPermissionRationale(permissions[0])) {

                AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this, R.style.MyAlertDialogStyle);
                alertDialogBuilder.setTitle("Change Permissions in Settings");
                alertDialogBuilder
                        .setMessage("Click SETTINGS to Manually Set\n\n" + "Permissions to use Database Storage")
                        .setCancelable(false)
                        .setPositiveButton("SETTINGS", new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                                Uri uri = Uri.fromParts("package", getPackageName(), null);
                                intent.setData(uri);
                                startActivityForResult(intent, 1000);
                            }
                        });

                AlertDialog alertDialog = alertDialogBuilder.create();
                alertDialog.show();

            } else {
                // User selected Deny Dialog to EXIT App ==> OR <== RETRY to have a second chance to Allow Permissions
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED) {

                AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this, R.style.MyAlertDialogStyle);
                alertDialogBuilder.setTitle("Second Chance");
                alertDialogBuilder
                        .setMessage("Click RETRY to Set Permissions to Allow\n\n" + "Click EXIT to the Close App")
                        .setCancelable(false)
                        .setPositiveButton("RETRY", new DialogInterface.OnClickListener() {

                            public void onClick(DialogInterface dialog, int id) {
                                Intent i = new Intent(MainActivity.this, MainActivity.class);
                                i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
                                startActivity(i);
                            }
                        })
                        .setNegativeButton("EXIT", new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                finish();
                                dialog.cancel();
                            }
                        });
                AlertDialog alertDialog = alertDialogBuilder.create();
                alertDialog.show();
            }
    }
    break;
    }};

权限弹出窗口不会在Android 7.0上显示，shouldShowRequestPermissionRationale始终为false

1 个答案: