I am using camera2 in my application and my friend is developing the same app for ios, the requires changing the request options for the camera like changing the lens position using: val requestOptionsBuilder = CaptureRequestOptions.Builder() I'm not familar with this part of code and realy don't understand. If it is, for example, signature - than what is signedData ? I can retrive data which is signed as base45 encrypted JSON but can't understand what is that GeneratePublic(new X509EncodedKeySpec(DatatypeConverter.parseBase64Binary(publicKeyString))) PublicKey publicKey = KeyFactory.getInstance("RSA"). Code below i used to transform it to PublicKey String publicKeyString = "base64PublicKey" SignatureInstance.update(signedData.getBytes("UTF-8")) īoolean result = signatureInstance.verify(signatureBytes) Signature signatureInstance = Signature.getInstance("SHA256withRSA", "BC")
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I found some code and can't understand some paramaters (maybe i wrong in all) byte signatureBytes = code(signature, Base64.DEFAULT) Main goal - verify data which i retrive from server. I am trying to verify signature which is signed base45 encrypted JSON passport data.
ROOT ANDROID EMULATOR MAC ANDROID STUDIO HOW TO
I've tried emulator -avd -writeable-system but I get 'emulator' is not recognized as an internal or external command, operable program or batch file.Ĭan someone please help me figure out how to run the emulator in such a way that I can write to /system?
![root android emulator mac android studio root android emulator mac android studio](https://www.xda-developers.com/files/2018/06/android-studio-featured.png)
It appears to work, but if I then try to write to /system, I get mv: /system: Read-only file system) I've tried adb shell mount -o rw,remount /system, but I get mount: '/system' not in /proc/mounts.īut get the same mount: '/system' not in /proc/mounts error (I also tried running adb disable-verity and rebooting before remounting, but I still get the same remount error.) I've made sure to run adb root and that works, though adb remount gives remount of the / superblock failed: Permission denied as an error. I'm currently using the Pixel 2 - API 28 AVD (targets Android 9.0). I've made sure to use a rootable, non-Google Play Services AVD.
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I want to be able to write to /system in my Android Studio Emulator.