I'm trying to get a Write_external_storage permission at the beginning of app work. But I can't see permission box. Here is my code:
override fun onStart() {
.....
if (Singleton.isPermissionGranted(this)) {
btn_submit_t.isEnabled
} else {
ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 1)
}
super.onStart()
}
and then I added onRequestPermissionsResult:
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
when (requestCode) {
1 -> {
if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Log.i("m","permission_is_granted")
// permission was granted, yay! Do the
// contacts-related task you need to do.
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
Toast.makeText(this, "Permission denied to read your External storage", Toast.LENGTH_SHORT).show()
Handler().postDelayed({
if (Build.VERSION.SDK_INT >= 23) {
if(checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
== PackageManager.PERMISSION_GRANTED) {
//your permission is granted
} else {
ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 1)
}
}
else {
//permission is automatically granted on devices lower than android M upon installation
}
//ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 1)
}, 100)
}
return
}
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
}
I tested it on different devices, and my problem appears on Xiaomi device with Android 6.0.1 version. I also added checking but it didn't help me. Where can be the problem?
Have u added "WRITE EXTERNAL STORAGE" permission in Manifest File?
Related
Even though I allow location access within the virtual phone it is stuck on "You need to grant permission to access location".
override fun onRequestPermissionsResult(
requestCode: Int, permissions: Array<out String>, grantResults: IntArray
) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
when (requestCode) {
1000 -> {
if (grantResults.isNotEmpty() &&
grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission granted
} else {
// permission denied
Toast.makeText(this, "You need to grant permission to access location",
Toast.LENGTH_SHORT).show()
}
}
}
}
Any ideas?
Location Permission for Api level 31 is a bit different.
Location permission for API level 31
You can use a library called EasyPermissions to make your life easier.
#AfterPermissionGranted(REQUEST_LOCATION_PERMISSION)
public void requestLocationPermission() {
String[] perms = {Manifest.permission.ACCESS_FINE_LOCATION};
if(EasyPermissions.hasPermissions(this, perms)) {
Toast.makeText(this, "Permission already granted", Toast.LENGTH_SHORT).show();
}
else {
EasyPermissions.requestPermissions(this, "Please grant the location permission", REQUEST_LOCATION_PERMISSION, perms);
}
}
Easy Permission implementation
Problem:
I have done this LocationPermission task with activity but I want to do it with the fragment. In Fragment method onRequestPermissionsResult() is not being called.
There are many answers to this question but unfortunately non of them worked for me. Some of those answers are in java which is not applicable in kotlin, for instance, one answer says using 'FragmentCompat' this problem can be solved but we don't have FragmentCompat in Kotlin.
What I did so far?
I followed this question and many others.
Before ActivityCompat.requestPermissions(requireActivity(), arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), 1)
After:
requestPermissions(arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),1)
though requestPermissions is depricated But nothing worked so far.
PLEASE DO CONSIDER KOTLIN LANGUAGE FOR ANSWERS
Code in Fragment:
fun RequestLocationPermission()
{
Log.d(TAG, "RequestLocationPermission: ")
if(ContextCompat.checkSelfPermission(requireContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED)
{
if(ActivityCompat.shouldShowRequestPermissionRationale(requireActivity(), Manifest.permission.ACCESS_FINE_LOCATION)){
requestPermissions(arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),1)
}
else{
ActivityCompat.requestPermissions(requireActivity(), arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), 1)
requestPermissions(arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),1)
}
}
}
override fun onRequestPermissionsResult(
requestCode: Int,
permissions: Array<String>,
grantResults: IntArray
) {
Toast.makeText(requireContext(), "Request Permission Called", Toast.LENGTH_SHORT).show()
Log.d(TAG, "onRequestPermissionResult Called ")
when (requestCode) {
1 -> when {
grantResults.isEmpty() ->
// If user interaction was interrupted, the permission request
// is cancelled and you receive empty arrays.
Log.d(TAG, "User interaction was cancelled.")
grantResults[0] == PackageManager.PERMISSION_GRANTED ->{
// Permission was granted.
locationPermission = true
fetchLocation()
}
else -> {
// Permission denied.
Toast.makeText(requireContext(), "Permission Denied", Toast.LENGTH_SHORT).show();
}
}
}
}
I followed the simple steps to ask for multiple permissions at once, here is my code for the permission request:
class MainActivity : AppCompatActivity() {
private val permissionCode = 100
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
getPermissions()
}
fun getPermissions() {
ActivityCompat.requestPermissions(
this,
arrayOf(Manifest.permission.NFC, Manifest.permission.INTERNET),
permissionCode
)
}
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
when (requestCode) {
permissionCode -> {
if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// Permission granted
Toast.makeText(this, "Permissions granted", Toast.LENGTH_SHORT).show()
} else {
// Permission denied
Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show()
}
}
}
}
When I am starting the app I dont get any dialog to accept or deny the permissions and just get the toast "Permissions granted" but if I check the permissions in the app info I dont see any permissions granted. What I am doing wrong? Can someone help me?
Neither INTERNET nor NFC are permissions that need to be requested at runtime. Just having them in the manifest (via <uses-permission> elements) is sufficient.
Only permissions with a protection level of dangerous need to be requested at runtime — this table lists those. INTERNET and NFC are normal permissions, not dangerous.
Let's say I'm trying to save a bitmap image to a png
public void save() {
String filename = "file.png";
File sd = Environment.getExternalStorageDirectory();
File dest = new File(sd, filename);
try {
FileOutputStream out = new FileOutputStream(dest);
fBitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
If I use Android 6.0 and above, I need to ask for runtime permissions
void validatePermissions() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
} else {
ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, 0);
}
}
}
I have a few questions:
The above code successfully asks for permissions, however I have to re-start the app,
How do I porperly halt the code until permissions are either granted or not granted?
Below Android 6.0, permissions are granted on install by the manifest file. How does android 5 or lower
handle runtime permissions code?
Thanks
You shouldn't restart the app. You should change a logic of your app: wait when user grants the permission and try to run an operation a second time.
And, yes, you can use third-party libraries for this purpose. For example, my personal choice: Permission dispatcher.
The above code successfully asks for permissions, however I have to re-start the app, How
do I porperly halt the code until permissions are either granted or not granted?
You can use this void
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String permissions[], #NonNull int[] grantResults) {
switch (requestCode) {
case 1: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay! Do the
// contacts-related task you need to do.
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
Toast.makeText(MainActivity.this, "Permission denied to read your External storage", Toast.LENGTH_SHORT).show();
}
}
// other 'case' lines to check for other
// permissions this app might request
}
}
from this answer
Below Android 6.0, permissions are granted on install by the manifest file. How does
android 5 or lower handle runtime permissions code?
The code will be skipped
You can use Dexter library for better performance. I am sharing here both Dexter code also
Using Dexter, you need to add Dexterdependency in your app.build gradle file.
implementation 'com.karumi:dexter:6.2.2'
Single permission/////
Dexter.withContext(activity)
.withPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
.withListener(object : PermissionListener {
override fun onPermissionGranted(p0: PermissionGrantedResponse?) {
downloadImage(url)
}
override fun onPermissionDenied(p0: PermissionDeniedResponse?) {
if (p0!!.isPermanentlyDenied) {
showSettingsDialog()
}
}
override fun onPermissionRationaleShouldBeShown(
p0: PermissionRequest?, p1: PermissionToken?
) {
p1!!.continuePermissionRequest()
}
})
.onSameThread()
.check()
Multiple Permission////
Dexter.withContext(requireContext())
.withPermissions(Manifest.permission.RECORD_AUDIO,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.READ_EXTERNAL_STORAGE)
.withListener(object : MultiplePermissionsListener {
override fun onPermissionsChecked(p0: MultiplePermissionsReport?) {
if (p0!!.areAllPermissionsGranted())
{
}else if (p0.isAnyPermissionPermanentlyDenied)
{
openSettings()
}
}
override fun onPermissionRationaleShouldBeShown(p0: MutableList<PermissionRequest>?, permissionToken: PermissionToken?) {
permissionToken?.continuePermissionRequest()
}
}).check()
I tried to call the phone intent on Kotlin, like this:
imgPhone.setOnClick {
val intent = Intent(Intent.ACTION_CALL, Uri.parse("tel:" + "1122334455"))
startActivity(intent)
}
When the phone image is clicked, nothing visually happens. Turns out the debugger showed you this:
java.lang.SecurityException: Permission Denial: starting Intent {
act=android.intent.action.CALL dat=tel:xxxxxxxxxx
cmp=com.android.server.telecom/.components.UserCallActivity }
I've tried several solutions:
Put this line in AndroidManifest.xml:
< uses-permission android:name="android.permission.CALL_PHONE"/>
Add android:exported="true" at the activity on which the call intent is
invoked:
< activity android:name=".activities.ProfileActivity" android:exported="true"/>
Ask permission explicitely:
override fun onCreate() {
super.onCreate()
/*
more codes here
*/
setupPermissions()
}
fun setupPermissions() {
val permission = ContextCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE)
if (permission != PackageManager.PERMISSION_GRANTED) {
Log.i("Error", "Permission to call denied")
}
}
So far, none of those workarounds work (on Android 6). The same SecurityException still occurs. What is the proper solution, then?
In Marshmallow you have to request permission during runtime, just in the manifest is not enough. On the option (3) you wrote you almost did it. There you're only checking for permission, but not asking for it.
The official docs is this: https://developer.android.com/training/permissions/requesting
The code will be something similar to this:
fun checkPermission() {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.CALL_PHONE)
!= PackageManager.PERMISSION_GRANTED) {
// Permission is not granted
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.CALL_PHONE)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(this,
arrayOf(Manifest.permission.CALL_PHONE),
42)
}
} else {
// Permission has already been granted
callPhone()
}
}
override fun onRequestPermissionsResult(requestCode: Int,
permissions: Array<String>, grantResults: IntArray) {
if (requestCode == 42) {
// If request is cancelled, the result arrays are empty.
if ((grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
// permission was granted, yay!
callPhone()
} else {
// permission denied, boo! Disable the
// functionality
}
return
}
}
fun callPhone(){
val intent = Intent(Intent.ACTION_CALL, Uri.parse("tel:" + "1122334455"))
startActivity(intent)
}
And don't forget you also need it on the manifest.
And you can remove that exported from your activity, that's pointless.
I hope it helps!