在“启动画面"上拒绝权限，但再次要求在另一活动中提示允许权限 [英] Deny permission on Splash screen but again ask for allow permission prompt in another activity

问题描述

if (Build.VERSION.SDK_INT >= 23) {
    if (checkPermission()) {
        Log.e("permission", "Permission already granted.");
    } else {
        requestPermission();
    }
}

private boolean checkPermission() {
    int result = ContextCompat.checkSelfPermission(SolutionBrouchereActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE);
    if (result == PackageManager.PERMISSION_GRANTED) {
        viewOrDownloadPDF();
        return true;
    } else {
        return false;
    }
}

private void requestPermission() {
    ActivityCompat.requestPermissions(getParent(), new String[]{Manifest.permission.CAMERA}, PERMISSION_REQUEST_CODE);
}

在初始屏幕上拒绝权限并且无法在其他活动中打开权限提示对话框后，此功能不起作用.

This functions not worked after denying permission on the splash screen and not able to open permission prompt dialog in another activity.

推荐答案

将此函数放在公共文件中，并在每次使用时调用都会再次检查

Put this function in common file and call whenever you use it will again check

public static boolean checkPermission(final Activity context)
    {
        int currentAPIVersion = Build.VERSION.SDK_INT;
        if(currentAPIVersion>=android.os.Build.VERSION_CODES.M)
        {
            if (ContextCompat.checkSelfPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED||ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { //||ContextCompat.checkSelfPermission(context, Manifest.permission.CALL_PHONE)!=PackageManager.PERMISSION_GRANTED
                if (ActivityCompat.shouldShowRequestPermissionRationale(context, Manifest.permission.READ_EXTERNAL_STORAGE)||ActivityCompat.shouldShowRequestPermissionRationale(context, Manifest.permission.WRITE_EXTERNAL_STORAGE)||ActivityCompat.shouldShowRequestPermissionRationale(context, Manifest.permission.CALL_PHONE)) {
                    AlertDialog.Builder alertBuilder = new AlertDialog.Builder(context);
                    alertBuilder.setCancelable(true);
                    alertBuilder.setTitle("Permission necessary");
                    alertBuilder.setMessage("External storage permission is necessary");
                    alertBuilder.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
                        @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
                        public void onClick(DialogInterface dialog, int which) {
                            ActivityCompat.requestPermissions(context, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.CALL_PHONE}, MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
                        }
                    });
                    AlertDialog alert = alertBuilder.create();
                    alert.show();
                } else {
                    ActivityCompat.requestPermissions(context, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.CALL_PHONE}, MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
                }
                return false;
            } else {
                return true;
            }
        } else {
            return true;
        }
    }

这篇关于在“启动画面"上拒绝权限，但再次要求在另一活动中提示允许权限的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！