I'm working on an app that collects data for processing, as such it requires multiple dangerous permissions (namely ACCESS_FINE_LOCATION and READ_PHONE_STATE). At the moment it requests one then crashes.
I have tried requesting the permissions separately using ActivityCompat.requestPermissions, and I have tried having both of the permissions in the array. I have also tried using the request codes 0,1 and 7 as I saw these used in different answers to similar questions on this topic, but nothing seems to change.
private void setupPermissions() {
ArrayList<String> permissions = new ArrayList<>();
if (ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
permissions.add(Manifest.permission.ACCESS_FINE_LOCATION);
}
if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
permissions.add(Manifest.permission.READ_PHONE_STATE);
}
if (permissions.size()>0){
ActivityCompat.requestPermissions(getActivity(), permissions.toArray(new String[permissions.size()]), 7);
}
}
Expected results:
Upon first opening the app both permissions should be requested for, either by two separate dialog boxes (one after the other) or by a multiple page dialog box.
The app should then run as expected
Actual results:
requests the first
allows you to continue with the app
crashes when you try to use a feature that requires the second
reopen app
requests the second
allows app to continue as normal
Call this checkAndRequestPermissions() Method whenevr you want permission
private boolean checkAndRequestPermissions() {
int ACCESS_FINE_LOCATION = ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION);
int READ_PHONE_STATE = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE);
List<String> listPermissionsNeeded = new ArrayList<>();
if (READ_PHONE_STATE != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(Manifest.permission.READ_PHONE_STATE);
}
if (ACCESS_FINE_LOCATION != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(Manifest.permission.ACCESS_FINE_LOCATION);
}
if (!listPermissionsNeeded.isEmpty()) {
ActivityCompat.requestPermissions(this, listPermissionsNeeded.toArray
(new String[listPermissionsNeeded.size()]), 101);
return false;
}
return true;
}
Try out the following code
(from this answer)
public static boolean hasPermissions(Context context, String... permissions) {
if (context != null && permissions != null) {
for (String permission : permissions) {
if (ActivityCompat.checkSelfPermission(context, permission) !=
PackageManager.PERMISSION_GRANTED) {
return false;
}
}
}
return true;
}
int PERMISSION_ALL = 1;
String[] PERMISSIONS = {
android.Manifest.permission.ACCESS_FINE_LOCATION,
android.Manifest.permission.READ_PHONESTATE
};
if(!hasPermissions(this, PERMISSIONS)){
ActivityCompat.requestPermissions(this, PERMISSIONS, PERMISSION_ALL);
}
Related
I need 2 permissions for my app= Location and Record Audio. I check, if it was granted, if no, I ask for permission. The code, where I ask for permisssion looks like this=
if (Build.VERSION.SDK_INT >= 23) {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// ask for permission
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
} else {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 0, locationListener);
}
if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
// ask for permission
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO}, 2);
}
}
My onRequestPermissionsResult method looks like this=
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch(requestCode) {
case 1:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 0, locationListener);
}
}
case 2:
permissionToRecordAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
break;
}
}
When i install the apk on my phone and change to that activity, where I need this 2 permissions, the app crashes in the background, but the permission windows for location is still open,when I grant it and reopen the app, change to that activity, I just have to give Location permission and everything works fine. Why does my app crash? When I only had location permission, it worked fine, after inserting audio record permission, it closes. When I run this on my emulator, it doesnt crash.
you should requestPermissions once with array of all needed permissions and you have two separated calls - second one will be called, when your app is already in background (because dialog with location permission appeared)
easiest fix would be adding return in proper place for checking is this the case (without stacktrace of exception its hard to guess)
if (Build.VERSION.SDK_INT >= 23) {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// ask for permission
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
return; // return in here
} else {
///... rest of code
better approach would be summing up all needed permissions and calling requestPErmissions once
if (Build.VERSION.SDK_INT >= 23) {
boolean needLocPerm = ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED;
boolean needAudioPerm = ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED;
String[] permsArray = null;
if(needAudioPerm && needLocPerm ){
permsArray = new String[]{Manifest.permission.RECORD_AUDIO,
Manifest.permission.ACCESS_FINE_LOCATION};
}
else if(needAudioPerm){
permsArray = new String[]{Manifest.permission.RECORD_AUDIO};
}
else if(needLocPerm ){
permsArray = new String[]{Manifest.permission.ACCESS_FINE_LOCATION};
}
if(permsArray!=null && permsArray.length>0)
ActivityCompat.requestPermissions(this, permsArray, 123);
else locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 0, locationListener);
}
after this code improvement you should refactor your onRequestPermissionsResult method and check which permissions were granted (inspect String[] permissions and int[] grantResults arrays)
without a stacktrace of exception this is only guess, besides above problem everything looks fine, but there is a chance your exception is fired by some call made in another method, e.g. onPause
I want to send SMS by android-app, but the permission dialog show before the send a message every time, I supposed to send a message without dialog show after the first permission asked.
My android app is run on mi-8, target SDK-version is 29.
if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.SEND_SMS) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.SEND_SMS}, 3);
} else if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_PHONE_STATE}, 4);
} else {
sendMsg();
}
I expect the permission dialog did not show when I send a message after the first asked permission, but actual every time show dialog when I send a message .
use this function to check whether you have given the permission if say so you have given as required persmission it will return true flag
check by this way
private boolean checkAndRequestPermissions(){
//add as much as permission you need
int readSMS = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_SMS);
int sendSms = ContextCompat.checkSelfPermission(this, Manifest.permission.SEND_SMS);
List<String> listPermissionsNeeded = new ArrayList<>();
if (readSMS != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(Manifest.permission.READ_SMS);
}
if (receiveSms != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(Manifest.permission.RECEIVE_SMS);
}
if (!listPermissionsNeeded.isEmpty()) {
ActivityCompat.requestPermissions(this, listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]),
REQUEST_ID_MULTIPLE_PERMISSIONS);
return false;
}
return true;
}
check by this way
if (checkAndRequestPermissions()){
sendMsg();
}else{
//do what you want
}
no need to do this by hardcode way
I made an Android App, which have some permissions, everything is ok but problem is that when user don't click on Allow or Deny(on Permission Dialog at first time app launch) button with in few seconds(approx 3 to 5 seconds) then my app not functioning properly it's register page, login and some other functions not working, if user click within few seconds then its work properly without any issue, i also check this from Internet but nobody clear my issue please help. FCM token not generating from Firebase.
Error is:-
E/FirebaseInstanceId: Unable to get master token
java.lang.SecurityException: getDeviceId: Neither user 10493 nor current process has android.permission.READ_PHONE_STATE.
at android.os.Parcel.readException(Parcel.java:2004)
at android.os.Parcel.readException(Parcel.java:1950)
at com.android.internal.telephony.ITelephony$Stub$Proxy.getDeviceId(ITelephony.java:5030)
at android.telephony.TelephonyManager.getDeviceId(TelephonyManager.java:1013)
at com.Abc.AppName.FirebaseInstanceIDService.id(FirebaseInstanceIDService.java:63)
at com.Abc.AppName.FirebaseInstanceIDService.onTokenRefresh(FirebaseInstanceIDService.java:35)
at com.google.firebase.iid.FirebaseInstanceIdService.zza(Unknown Source:187)
at com.google.firebase.iid.FirebaseInstanceIdService.handleIntent(Unknown Source:306)
at com.google.firebase.iid.zzc.run(Unknown Source:4)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
at java.lang.Thread.run(Thread.java:764)
Manifest:-
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE"/>
Splash:-
if (Build.VERSION.SDK_INT >= 23) {
String[] PERMISSIONS = {android.Manifest.permission.INTERNET,
android.Manifest.permission.ACCESS_NETWORK_STATE,
android.Manifest.permission.READ_PHONE_STATE,
Manifest.permission.CALL_PHONE
};
if (!hasPermissions(mContext, PERMISSIONS)) {
ActivityCompat.requestPermissions((Activity) mContext, PERMISSIONS, REQUEST);
} else {
callNextActivity();
}
} else {
callNextActivity();
}
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case REQUEST: {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
callNextActivity();
} else {
Toast.makeText(mContext, R.string.permission_denied, Toast.LENGTH_LONG).show();
}
}
}
}
private static boolean hasPermissions(Context context, String... permissions) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && context != null && permissions != null) {
for (String permission : permissions) {
if (ActivityCompat.checkSelfPermission(context, permission) != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
}
return true;
}
FirebaseInstanceID:-
#Override
public void onTokenRefresh() {
token = FirebaseInstanceId.getInstance().getToken();
device_id = id(this);
sharedPreferences = getSharedPreferences(getString(R.string.prefs), 0);
sharedPreferences.edit().putString("fcm_token", token).apply();
device_id = sharedPreferences.getString(PREF_UNIQUE_ID, "");
Log.e("fcm_token", token + " " + device_id);
executeMethod();
}
public synchronized static String id(Context context) {
if (uniqueID == null) {
SharedPreferences sharedPrefs = context.getSharedPreferences(context.getString(R.string.prefs), Context.MODE_PRIVATE);
uniqueID = sharedPrefs.getString(PREF_UNIQUE_ID, null);
if (uniqueID == null) {
mngr = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
if (ActivityCompat.checkSelfPermission(context, android.Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
}
uniqueID = mngr.getDeviceId();
Log.e("UNIQUEID", uniqueID);
sharedPrefs.edit().putString(PREF_UNIQUE_ID, uniqueID).apply();
}
}
return uniqueID;
}
You can use another activity to request permissions. If user allows, just start your main activity, else kill request activity or show popup to warn user.
The problem is you are trying to get id of the device in onTokenRefresh . This method will be called as soon as the app gets installed and opened first time . By this time your app wont have the permission .
So solution to this problem .
In onTokenRefresh just save the token in shared preferences and when you reach the activity ,request for permission and after permission is granted get the token from shared preferences and device id and do your stuff .
Currently when asking for run time permission when launching my app for the very first time it prompts the user to use their location. And if you click yes it doesn't enable location like it should.
But if I relaunch the app it enables the location. Any suggestions as to where I can get it to have location enabled on first launch ? The first part of the code is called in OnCreate.
if (ContextCompat.checkSelfPermission(MapsActivity.this,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(MapsActivity.this,
Manifest.permission.ACCESS_FINE_LOCATION)) {
// Show an expanation 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(MapsActivity.this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
REQUEST_CODE_ASK_PERMISSIONS);
}
}
#Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
if (requestCode == REQUEST_CODE_ASK_PERMISSIONS) {
if (permissions.length == 1 &&
permissions[0] == Manifest.permission.ACCESS_FINE_LOCATION &&
grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
mMap.setMyLocationEnabled(true);
} else {
// Show rationale and request permission.
}
mMap.setMyLocationEnabled(true);
} else {
//permission denied
}
}
}
public void onMapReady(GoogleMap googleMap) {
int permissionCheck = ContextCompat.checkSelfPermission(MapsActivity.this,
Manifest.permission.ACCESS_FINE_LOCATION);
If you are testing on an emulator the permission will only be asked on the first run. How to debug Android 6.0 permissions?
Also if you are not completely uninstalling the app and it is being upgraded from a lower SDK or permissions have been set by the user at runtime and made default, then the runtime permissions will not be asked again.
Try completely uninstalling the app, or checking the default settings and clearing them.
Take a closer look at this line
permissions[0] == Manifest.permission.ACCESS_FINE_LOCATION
permissions is a String array meaning that you should compare using equals()
or compareTo() method.
If this code is in a Fragment, OnRequestPermissionResult() won't be called. So setMyLocationEnabled won't be called until you re open the app.
To fix this change:
ActivityCompat.requestPermissions(MapsActivity.this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
REQUEST_CODE_ASK_PERMISSIONS);
To:
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
REQUEST_CODE_ASK_PERMISSIONS);
ActivityCompat.requestPermissions is for Activities. When you use a Fragment you should call requestPermissions directly.
I am testing my app on Marshmallow 6.0 and it's getting force closed for the android.permission.READ_EXTERNAL_STORAGE, even if it is defined in the Manifest already. Somewhere I have read that if I request permission at runtime then it would not force close your application. I have read this android document also, which is for requesting runtime permission.
So, I came to know that we can request a permission like below which is mentioned in the android document.
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(thisActivity,
Manifest.permission.READ_CONTACTS)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
Manifest.permission.READ_CONTACTS)) {
// Show an expanation 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(thisActivity,
new String[]{Manifest.permission.READ_CONTACTS},
MY_PERMISSIONS_REQUEST_READ_CONTACTS);
// MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
// app-defined int constant. The callback method gets the
// result of the request.
}
}
The above code has a callback method onRequestPermissionsResult which gets the result.
#Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
}
}
My question is where to exactly request the permission to user? Should we use the requesting permission at start of the app or should we do it as when the permission is required?
This is worked for me !!!
In Your Splash Activity of your application do the following,
1) Declare an int variable for request code,
private static final int REQUEST_CODE_PERMISSION = 2;
2) Declare a string array with the number of permissions you need,
String[] mPermission = {Manifest.permission.READ_CONTACTS, Manifest.permission.READ_SMS,
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.WRITE_EXTERNAL_STORAGE};
3) Next Check the condition for runtime permission on your onCreate method,
try {
if (ActivityCompat.checkSelfPermission(this, mPermission[0])
!= MockPackageManager.PERMISSION_GRANTED ||
ActivityCompat.checkSelfPermission(this, mPermission[1])
!= MockPackageManager.PERMISSION_GRANTED ||
ActivityCompat.checkSelfPermission(this, mPermission[2])
!= MockPackageManager.PERMISSION_GRANTED ||
ActivityCompat.checkSelfPermission(this, mPermission[3])
!= MockPackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this,
mPermission, REQUEST_CODE_PERMISSION);
// If any permission aboe not allowed by user, this condition will execute every tim, else your else part will work
}
} catch (Exception e) {
e.printStackTrace();
}
4) Now Declare onRequestPermissionsResult method to check the request code,
#Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
Log.e("Req Code", "" + requestCode);
if (requestCode == REQUEST_CODE_PERMISSION) {
if (grantResults.length == 4 &&
grantResults[0] == MockPackageManager.PERMISSION_GRANTED &&
grantResults[1] == MockPackageManager.PERMISSION_GRANTED &&
grantResults[2] == MockPackageManager.PERMISSION_GRANTED &&
grantResults[3] == MockPackageManager.PERMISSION_GRANTED) {
// Success Stuff here
}
}
}
Do like this
private static final int REQUEST_ACCESS_FINE_LOCATION = 111;
In your onCreate
boolean hasPermissionLocation = (ContextCompat.checkSelfPermission(getApplicationContext(),
Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED);
if (!hasPermissionLocation) {
ActivityCompat.requestPermissions(ThisActivity.this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
REQUEST_ACCESS_FINE_LOCATION);
}
then check result
#Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode)
{
case REQUEST_ACCESS_FINE_LOCATION: {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
{
Toast.makeText(ThisActivity.this, "Permission granted.", Toast.LENGTH_SHORT).show();
//reload my activity with permission granted
finish();
startActivity(getIntent());
} else
{
Toast.makeText(ThisActivity.this, "The app was not allowed to get your location. Hence, it cannot function properly. Please consider granting it this permission", Toast.LENGTH_LONG).show();
}
}
}
}
In general, request needed permissions it as soon as you need them. This way you can inform the user why you need the permission and handle permission denies much easier.
Think of scenarios where the user revokes the permission while your app runs: If you request it at startup and never check it later this could lead to unexpected behaviour or exceptions.
In my opinion, there is no one correct answer to your question. I strongly suggest you to look at this official permissions patterns page.
Couple of things suggested by Google :
"Your permissions strategy depends on the clarity and importance of the permission type you are requesting. These patterns offer different ways of introducing permissions to the user."
"Critical permissions should be requested up-front. Secondary permissions may be requested in-context."
"Permissions that are less clear should provide education about what the permission involves, whether done up-front or in context."
This illustration might give you better understanding.
Maybe the most crucial thing here is that whether you ask the permission up-front or in the context, you should always keep in mind that these permissions can be revoked anytime by the user (e.g. your app is still running, in background).
You should make sure that your app doesn't crash just because you asked the permission on the very beginning of the app and assumed that user didn't change his/her preference about that permission.
For requesting runtime permission i use GitHub Library
Add library in Build.gradle file
dependencies {
compile 'gun0912.ted:tedpermission:1.0.3'
}
Create Activity and add PermissionListener
public class MainActivity extends AppCompatActivity{
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
PermissionListener permissionlistener = new PermissionListener() {
#Override
public void onPermissionGranted() {
Toast.makeText(RationaleDenyActivity.this, "Permission Granted", Toast.LENGTH_SHORT).show();
//Camera Intent and access Location logic here
}
#Override
public void onPermissionDenied(ArrayList<String> deniedPermissions) {
Toast.makeText(RationaleDenyActivity.this, "Permission Denied\n" + deniedPermissions.toString(), Toast.LENGTH_SHORT).show();
}
};
new TedPermission(this)
.setPermissionListener(permissionlistener)
.setRationaleTitle(R.string.rationale_title)
.setRationaleMessage(R.string.rationale_message) // "we need permission for access camera and find your location"
.setDeniedTitle("Permission denied")
.setDeniedMessage("If you reject permission,you can not use this service\n\nPlease turn on permissions at [Setting] > [Permission]")
.setGotoSettingButtonText("Settings")
.setPermissions(Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE)
.check();
}
}
string.xml
<resources>
<string name="rationale_title">Permission required</string>
<string name="rationale_message">we need permission for read <b>camera</b> and find your <b>location</b></string>
</resources>
Android Easy Runtime Permissions with Dexter:
1. Dexter Permissions Library
To get started with Dexter, add the dependency in your build.gradle
dependencies {
// Dexter runtime permissions
implementation 'com.karumi:dexter:4.2.0'
}
1.1 Requesting Single Permission
To request a single permission, you can use withPermission() method by passing the required permission. You also need a PermissionListener callback to receive the state of the permission.
> onPermissionGranted() will be called once the permission is granted.
> onPermissionDenied() will be called when the permission is denied. Here you can check whether the permission is permanently denied by using response.isPermanentlyDenied() condition.
The below code requests CAMERA permission.
Dexter.withActivity(this)
.withPermission(Manifest.permission.CAMERA)
.withListener(new PermissionListener() {
#Override
public void onPermissionGranted(PermissionGrantedResponse response) {
// permission is granted, open the camera
}
#Override
public void onPermissionDenied(PermissionDeniedResponse response) {
// check for permanent denial of permission
if (response.isPermanentlyDenied()) {
// navigate user to app settings
}
}
#Override
public void onPermissionRationaleShouldBeShown(PermissionRequest permission, PermissionToken token) {
token.continuePermissionRequest();
}
}).check();
1.2 Requesting Multiple Permissions
To request multiple permissions at the same time, you can use withPermissions() method. Below code requests STORAGE and LOCATION permissions.
Dexter.withActivity(this)
.withPermissions(
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.ACCESS_FINE_LOCATION)
.withListener(new MultiplePermissionsListener() {
#Override
public void onPermissionsChecked(MultiplePermissionsReport report) {
// check if all permissions are granted
if (report.areAllPermissionsGranted()) {
// do you work now
}
// check for permanent denial of any permission
if (report.isAnyPermissionPermanentlyDenied()) {
// permission is denied permenantly, navigate user to app settings
}
}
#Override
public void onPermissionRationaleShouldBeShown(List<PermissionRequest> permissions, PermissionToken token) {
token.continuePermissionRequest();
}
})
.onSameThread()
.check();
A good explanation and HowTo can be found here:
https://inthecheesefactory.com/blog/things-you-need-to-know-about-android-m-permission-developer-edition/en
I wrote this code to check and request the permissions at runtime in a BaseActivity.class which is parent of every other Activity.class I implemented:
public static final int PERMISSION_REQUEST = 42;
public static final int MULTIPLE_PERMISSION_REQUEST = 43;
//Marshmallow Permission Model
public boolean requestPermission(String permission /* Manifest.permission...*/) {
if (ContextCompat.checkSelfPermission(this,
permission) != PackageManager.PERMISSION_GRANTED) {
if (Utils.hasMarshmallow())
ActivityCompat.requestPermissions(this,
new String[]{permission}, PERMISSION_REQUEST
);
else {
requestPermissions(new String[]{permission},
PERMISSION_REQUEST);
}
return false;
} else {
return true;
}
}
public boolean requestPermission(String... permissions) {
final List<String> permissionsList = new ArrayList<String>();
for (String perm : permissions) {
addPermission(permissionsList, perm);
}
if (permissionsList.size() > 0) {
if (Utils.hasMarshmallow())
requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),
MULTIPLE_PERMISSION_REQUEST);
else
ActivityCompat.requestPermissions(this, permissionsList.toArray(new String[permissionsList.size()]),
MULTIPLE_PERMISSION_REQUEST);
return false;
} else
return true;
}
private boolean addPermission(List<String> permissionsList, String permission) {
if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
permissionsList.add(permission);
// Check for Rationale Option
if (Utils.hasMarshmallow())
if (!shouldShowRequestPermissionRationale(permission))
return false;
}
return true;
}
#Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case PERMISSION_REQUEST:
case MULTIPLE_PERMISSION_REQUEST: {
// 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.
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}
Simply example call:
activity.requestPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE);
Return result will let you know if the permission is already granted or not.
calling this function we can allow user to open dialog for asking permission to allow camera and record Audio.
if ( ActivityCompat.shouldShowRequestPermissionRationale (this, Manifest.permission.CAMERA) ||
ActivityCompat.shouldShowRequestPermissionRationale (this,
Manifest.permission.RECORD_AUDIO) ) {
Toast.makeText (this,
R.string.permissions_needed,
Toast.LENGTH_LONG).show ();
} else {
ActivityCompat.requestPermissions (
this,
new String[]{Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO},
CAMERA_MIC_PERMISSION_REQUEST_CODE);
}
https://material.io/guidelines/patterns/permissions.html
This link will give you different type of scenario where permissions can be asked. Choose accordingly to your needs.
I like short code. I use RxPermission for permissions.
RxPermission is best library, which makes permission code unexpected just 1 line.
RxPermissions rxPermissions = new RxPermissions(this);
rxPermissions
.request(Manifest.permission.CAMERA,
Manifest.permission.READ_PHONE_STATE) // ask single or multiple permission once
.subscribe(granted -> {
if (granted) {
// All requested permissions are granted
} else {
// At least one permission is denied
}
});
add in your build.gradle
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
dependencies {
implementation 'com.github.tbruyelle:rxpermissions:0.10.1'
implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.1'
}
Isn't this easy?
if ( ActivityCompat.shouldShowRequestPermissionRationale (this, Manifest.permission.CAMERA) ||
ActivityCompat.shouldShowRequestPermissionRationale (this,
Manifest.permission.RECORD_AUDIO) ) {
Toast.makeText (this,
R.string.permissions_needed,
Toast.LENGTH_LONG).show ();
} else {
ActivityCompat.requestPermissions (
this,
new String[]{Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO},
CAMERA_MIC_PERMISSION_REQUEST_CODE);
}