Android Scoped Storage Permission for Download Folder to Download PDF - java

I have an app that download specific pdf files using streamig Retrofit. I am upgrading my app targeting android 11. I have gone through many online documents and stackoverflow solutions and got it working. The files gets downloaded to Downloads folder.
With Scope Storage, do i need to ask for specific permission to read/write for 29 and above, as this folder is shared folder? I already have these in manifest.
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="28"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
I am using this to check if permission is granted
public static boolean isPermissionGranted(Context context){
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.R){
return Environment.isExternalStorageManager();
} else {
int readExtStorage = ContextCompat.checkSelfPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE);
int writeExtStorage = ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE);
return readExtStorage == PackageManager.PERMISSION_GRANTED && writeExtStorage == PackageManager.PERMISSION_GRANTED;
}
}
Do I need to use this also in manifest, and if so how do i handle if permission not granted?
<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/>
I was thinking of using below, but i guess Playstore will reject my app with this absurd permission request.
Intent intent = new Intent(Settings.ACTION_MANAGE_ALL_FILES_ACCESS_PERMISSION);
intent.addCategory("android.intent.category.DEFAULT");
Uri uri = Uri.fromParts("package",getPackageName(),null);
intent.setData(uri);
permissionActivityResultLauncher.launch(intent);

Related

Can't start a call from within a fragment class [duplicate]

I'm trying to write code to send an SMS from an Android app, but when I try to send the SMS it sends me back the error:
09-17 18:37:29.974 12847-12847/**.**.****E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: **.**.****, PID: 12847
java.lang.SecurityException: Sending SMS message: uid 10092 does not have android.permission.SEND_SMS.
at android.os.Parcel.readException(Parcel.java:1599)
at android.os.Parcel.readException(Parcel.java:1552)
at com.android.internal.telephony.ISms$Stub$Proxy.sendTextForSubscriber(ISms.java:768)
at android.telephony.SmsManager.sendTextMessageInternal(SmsManager.java:310)
at android.telephony.SmsManager.sendTextMessage(SmsManager.java:293)
at **.**.****.MainActivity$3.onClick(MainActivity.java:70)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
I checked but I have the permissions in the manifest, as follows:
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-feature android:name="android.hardware.telephony"
android:required="true"/>
<application
android:exported="true"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
I searched the internet but all the errors were about the <uses-permission/> syntax, could you help me please?

(the following is extracted from a blog post of mine about this)
The big reason for not getting your permission nowadays is because
your project has a targetSdkVersion of 23 or higher, and the permission
that you are requesting is "dangerous". In Android 6.0, this includes:
ACCEPT_HANDOVER
ACCESS_BACKGROUND_LOCATION
ACCESS_MEDIA_LOCATION
ACTIVITY_RECOGNITION
ANSWER_PHONE_CALLS
ACCESS_COARSE_LOCATION
ACCESS_FINE_LOCATION
ADD_VOICEMAIL
BODY_SENSORS
CALL_PHONE
CAMERA
GET_ACCOUNTS
PROCESS_OUTGOING_CALLS
READ_CALENDAR
READ_CALL_LOG
READ_CELL_BROADCASTS
READ_CONTACTS
READ_EXTERNAL_STORAGE
READ_PHONE_STATE
READ_SMS
RECEIVE_MMS
RECEIVE_SMS
RECEIVE_WAP_PUSH
RECORD_AUDIO
SEND_SMS
USE_SIP
WRITE_CALENDAR
WRITE_CALL_LOG
WRITE_CONTACTS
WRITE_EXTERNAL_STORAGE
For these permissions, not only does your targetSdkVersion 23+ app
need to have the <uses-permission> element(s), but you also have
to ask for those permissions at runtime from the user on Android 6.0+
devices, using methods like checkSelfPermission() and
requestPermissions().
As a temporary workaround, drop your targetSdkVersion below 23.
However, eventually, you will have some reason to want your
targetSdkVersion to be 23 or higher. At that time, you will need
to adjust your app to use the new runtime permission system.
The Android documentation has
a page dedicated to this topic.

Above API level 23 you will be given programmatically pragmatically like:
private static final int PERMISSION_REQUEST_CODE = 1;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
if (checkSelfPermission(Manifest.permission.SEND_SMS)
== PackageManager.PERMISSION_DENIED) {
Log.d("permission", "permission denied to SEND_SMS - requesting it");
String[] permissions = {Manifest.permission.SEND_SMS};
requestPermissions(permissions, PERMISSION_REQUEST_CODE);
}
}

Please go through the link below,
https://developer.android.com/guide/topics/permissions/overview.html
Some samples are also available there to get start with the permissions.
To make android more secure now developers has to mention permission in manifest as well as they should have to ask user as well in run time to get the work done. They are permission categorized in dangerous permission section which are mention below
CALENDAR
READ_CALENDAR
WRITE_CALENDAR
CAMERA
CAMERA
CONTACTS
READ_CONTACTS
WRITE_CONTACTS
GET_ACCOUNTS
LOCATION
ACCESS_FINE_LOCATION
ACCESS_COARSE_LOCATION
MICROPHONE
RECORD_AUDIO
PHONE
READ_PHONE_STATE
READ_PHONE_NUMBERS
CALL_PHONE
ANSWER_PHONE_CALLS (must request at runtime)
READ_CALL_LOG
WRITE_CALL_LOG
ADD_VOICEMAIL
USE_SIP
PROCESS_OUTGOING_CALLS
ANSWER_PHONE_CALLS
SENSORS
BODY_SENSORS
SMS
SEND_SMS
RECEIVE_SMS
READ_SMS
RECEIVE_WAP_PUSH
RECEIVE_MMS
STORAGE
READ_EXTERNAL_STORAGE
WRITE_EXTERNAL_STORAGE

request permission pragmatically (after API 23)
if (ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.SEND_SMS)
!= PackageManager.PERMISSION_GRANTED) {
// Permission is not granted
// Ask for permision
ActivityCompat.requestPermissions(this,new String[] { Manifest.permission.SEND_SMS}, 1);
}
else {
// Permission has already been granted
}
"If the app has the permission, the method checkSelfPermission() returns PERMISSION_GRANTED, and the app can proceed with the operation.
If the app does not have the permission, the method returns PERMISSION_DENIED, and the app has to explicitly ask the user for permission. You need to prompt the user for that permission, as shown in the above code. Calling requestPermissions() brings up a standard Android dialog, which you cannot customize."

If you are using sdk 23 or higher then you must check run time permissions.

when you declare permisson in Manifest and it's not work means you are performing Task in MarshMallow and for MarshMallow you have set Permisson at RunTime.
like this way
ActivityCompat.requestPermissions();

If you are using Android version "23" or "23+", then app will show you errors when you are trying to access anything which requires user's permission. You have to ask for permissions at run-time even if you have declared those permissions in Android manifest.
Check this: https://developer.android.com/training/permissions/requesting.html
But if you have created your whole application and don't want to change at every place then a little cheat will be sufficient.
Go to "Build.gradle" file and change the target Sdk version to less than 23, like 22, 21.

Along with CommonsWare's answer,
There is a Security Setting (I checked on CM13) to set SMS Message Limit. If you set this to "None", OS will popup a Dialog for every SMS, even after obtaining SMS_SEND permission in the runtime. Best thing is to set this to maximum.
If the maximum is not enough, there are ways to increases the maximum rate on a rooted device.

I added this to my MainActivity, that resolve my problem
int MY_PERMISSIONS_REQUEST_READ_CONTACTS=0;
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
// 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(this,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
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.
}
}

I hope the solution to write to external storage will be useful too
public boolean checkPermission() {
if (Build.VERSION.SDK_INT >= 23) {
if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
== PackageManager.PERMISSION_GRANTED) {
Timber.tag(LOG_TAG).e("Permission error. You have permission");
return true;
} else {
Timber.tag(LOG_TAG).e("Permission error. You have asked for permission");
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
return false;
}
}
else {
// for a stuff below api level 23
Timber.tag(LOG_TAG).e("Permission error. You already have the permission");
return true;
}
}

So i had to create an app to send and receive messages but the send action crashed whenever i clicked on send even though the permission was granted . I had requested runtime permissions and allowed them, still i faced a crash that the process doesnt have the requested permission to send SMS .
I had checked the granted permissions from :
adb shell dumpsys package <package-name>
The order of my request for permissions was
RECEIVE_SMS
SEND_SMS
I reverted the order of request and it works fine . This was tested with a complete new app(uninstall-> install -> test). The answer may seem weird but just give it a shot .
(If it works in the shown way in a certain order, then Android might have a bug!!)

LocationService.FusedLocation returning null only on some devices

I am trying to get the last known location of the user.
After Google API is connected, I call my function:
#Override
public void onConnected(Bundle bundle) {
initilizeMap();
}
The function looks like this:
private void initilizeMap(){
mLastLocation = LocationServices.FusedLocationApi
.getLastLocation(mGoogleApiClient);
if (mLastLocation != null){
...
}else{
// location unknown
}
}
I opened up the Google maps first to get the current location of the user. However, mLastLocation is still null.
The most interesting thing is that the code is working on Sony tablet. But I changed my phone today to Nexus and it is not working on this device!
How can I fix this?
P.S. I included these permissions in my manifest file:
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
and android version is 6.0.1

Any dangerous permissions as listed here need to be requested at run time, as shown on Requesting Permissions at Run Time otherwise you'll get a Permission Denied error which can have unexpected results in your app.
You check a permission with:
ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.ACCESS_FINE_LOCATION)
it can return either PackageManager.PERMISSION_GRANTED or PackageManager.PERMISSION_DENIED
if you get a PackageManager.PERMISSION_DENIED then you can request that permission with:
ActivityCompat.requestPermissions(thisActivity,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_ACCESS_LOCATION);
where MY_PERMISSION_REQUEST_ACCESS_LOCATION is your defined int variable that is passed to the callback of onRequestPermissionsResult where you handle the outcome of the permission allow/deny.

Camera storage perms in Android Studio [duplicate]

I'm trying to write code to send an SMS from an Android app, but when I try to send the SMS it sends me back the error:
09-17 18:37:29.974 12847-12847/**.**.****E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: **.**.****, PID: 12847
java.lang.SecurityException: Sending SMS message: uid 10092 does not have android.permission.SEND_SMS.
at android.os.Parcel.readException(Parcel.java:1599)
at android.os.Parcel.readException(Parcel.java:1552)
at com.android.internal.telephony.ISms$Stub$Proxy.sendTextForSubscriber(ISms.java:768)
at android.telephony.SmsManager.sendTextMessageInternal(SmsManager.java:310)
at android.telephony.SmsManager.sendTextMessage(SmsManager.java:293)
at **.**.****.MainActivity$3.onClick(MainActivity.java:70)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
I checked but I have the permissions in the manifest, as follows:
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-feature android:name="android.hardware.telephony"
android:required="true"/>
<application
android:exported="true"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
I searched the internet but all the errors were about the <uses-permission/> syntax, could you help me please?

(the following is extracted from a blog post of mine about this)
The big reason for not getting your permission nowadays is because
your project has a targetSdkVersion of 23 or higher, and the permission
that you are requesting is "dangerous". In Android 6.0, this includes:
ACCEPT_HANDOVER
ACCESS_BACKGROUND_LOCATION
ACCESS_MEDIA_LOCATION
ACTIVITY_RECOGNITION
ANSWER_PHONE_CALLS
ACCESS_COARSE_LOCATION
ACCESS_FINE_LOCATION
ADD_VOICEMAIL
BODY_SENSORS
CALL_PHONE
CAMERA
GET_ACCOUNTS
PROCESS_OUTGOING_CALLS
READ_CALENDAR
READ_CALL_LOG
READ_CELL_BROADCASTS
READ_CONTACTS
READ_EXTERNAL_STORAGE
READ_PHONE_STATE
READ_SMS
RECEIVE_MMS
RECEIVE_SMS
RECEIVE_WAP_PUSH
RECORD_AUDIO
SEND_SMS
USE_SIP
WRITE_CALENDAR
WRITE_CALL_LOG
WRITE_CONTACTS
WRITE_EXTERNAL_STORAGE
For these permissions, not only does your targetSdkVersion 23+ app
need to have the <uses-permission> element(s), but you also have
to ask for those permissions at runtime from the user on Android 6.0+
devices, using methods like checkSelfPermission() and
requestPermissions().
As a temporary workaround, drop your targetSdkVersion below 23.
However, eventually, you will have some reason to want your
targetSdkVersion to be 23 or higher. At that time, you will need
to adjust your app to use the new runtime permission system.
The Android documentation has
a page dedicated to this topic.

Above API level 23 you will be given programmatically pragmatically like:
private static final int PERMISSION_REQUEST_CODE = 1;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
if (checkSelfPermission(Manifest.permission.SEND_SMS)
== PackageManager.PERMISSION_DENIED) {
Log.d("permission", "permission denied to SEND_SMS - requesting it");
String[] permissions = {Manifest.permission.SEND_SMS};
requestPermissions(permissions, PERMISSION_REQUEST_CODE);
}
}

Please go through the link below,
https://developer.android.com/guide/topics/permissions/overview.html
Some samples are also available there to get start with the permissions.
To make android more secure now developers has to mention permission in manifest as well as they should have to ask user as well in run time to get the work done. They are permission categorized in dangerous permission section which are mention below
CALENDAR
READ_CALENDAR
WRITE_CALENDAR
CAMERA
CAMERA
CONTACTS
READ_CONTACTS
WRITE_CONTACTS
GET_ACCOUNTS
LOCATION
ACCESS_FINE_LOCATION
ACCESS_COARSE_LOCATION
MICROPHONE
RECORD_AUDIO
PHONE
READ_PHONE_STATE
READ_PHONE_NUMBERS
CALL_PHONE
ANSWER_PHONE_CALLS (must request at runtime)
READ_CALL_LOG
WRITE_CALL_LOG
ADD_VOICEMAIL
USE_SIP
PROCESS_OUTGOING_CALLS
ANSWER_PHONE_CALLS
SENSORS
BODY_SENSORS
SMS
SEND_SMS
RECEIVE_SMS
READ_SMS
RECEIVE_WAP_PUSH
RECEIVE_MMS
STORAGE
READ_EXTERNAL_STORAGE
WRITE_EXTERNAL_STORAGE

request permission pragmatically (after API 23)
if (ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.SEND_SMS)
!= PackageManager.PERMISSION_GRANTED) {
// Permission is not granted
// Ask for permision
ActivityCompat.requestPermissions(this,new String[] { Manifest.permission.SEND_SMS}, 1);
}
else {
// Permission has already been granted
}
"If the app has the permission, the method checkSelfPermission() returns PERMISSION_GRANTED, and the app can proceed with the operation.
If the app does not have the permission, the method returns PERMISSION_DENIED, and the app has to explicitly ask the user for permission. You need to prompt the user for that permission, as shown in the above code. Calling requestPermissions() brings up a standard Android dialog, which you cannot customize."

If you are using sdk 23 or higher then you must check run time permissions.

when you declare permisson in Manifest and it's not work means you are performing Task in MarshMallow and for MarshMallow you have set Permisson at RunTime.
like this way
ActivityCompat.requestPermissions();

If you are using Android version "23" or "23+", then app will show you errors when you are trying to access anything which requires user's permission. You have to ask for permissions at run-time even if you have declared those permissions in Android manifest.
Check this: https://developer.android.com/training/permissions/requesting.html
But if you have created your whole application and don't want to change at every place then a little cheat will be sufficient.
Go to "Build.gradle" file and change the target Sdk version to less than 23, like 22, 21.

Along with CommonsWare's answer,
There is a Security Setting (I checked on CM13) to set SMS Message Limit. If you set this to "None", OS will popup a Dialog for every SMS, even after obtaining SMS_SEND permission in the runtime. Best thing is to set this to maximum.
If the maximum is not enough, there are ways to increases the maximum rate on a rooted device.

I added this to my MainActivity, that resolve my problem
int MY_PERMISSIONS_REQUEST_READ_CONTACTS=0;
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
// 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(this,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
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.
}
}

I hope the solution to write to external storage will be useful too
public boolean checkPermission() {
if (Build.VERSION.SDK_INT >= 23) {
if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
== PackageManager.PERMISSION_GRANTED) {
Timber.tag(LOG_TAG).e("Permission error. You have permission");
return true;
} else {
Timber.tag(LOG_TAG).e("Permission error. You have asked for permission");
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
return false;
}
}
else {
// for a stuff below api level 23
Timber.tag(LOG_TAG).e("Permission error. You already have the permission");
return true;
}
}

So i had to create an app to send and receive messages but the send action crashed whenever i clicked on send even though the permission was granted . I had requested runtime permissions and allowed them, still i faced a crash that the process doesnt have the requested permission to send SMS .
I had checked the granted permissions from :
adb shell dumpsys package <package-name>
The order of my request for permissions was
RECEIVE_SMS
SEND_SMS
I reverted the order of request and it works fine . This was tested with a complete new app(uninstall-> install -> test). The answer may seem weird but just give it a shot .
(If it works in the shown way in a certain order, then Android might have a bug!!)

"gps" location provider requires ACCESS_FINE_LOCATION permission [duplicate]

I'm trying to write code to send an SMS from an Android app, but when I try to send the SMS it sends me back the error:
09-17 18:37:29.974 12847-12847/**.**.****E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: **.**.****, PID: 12847
java.lang.SecurityException: Sending SMS message: uid 10092 does not have android.permission.SEND_SMS.
at android.os.Parcel.readException(Parcel.java:1599)
at android.os.Parcel.readException(Parcel.java:1552)
at com.android.internal.telephony.ISms$Stub$Proxy.sendTextForSubscriber(ISms.java:768)
at android.telephony.SmsManager.sendTextMessageInternal(SmsManager.java:310)
at android.telephony.SmsManager.sendTextMessage(SmsManager.java:293)
at **.**.****.MainActivity$3.onClick(MainActivity.java:70)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
I checked but I have the permissions in the manifest, as follows:
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-feature android:name="android.hardware.telephony"
android:required="true"/>
<application
android:exported="true"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
I searched the internet but all the errors were about the <uses-permission/> syntax, could you help me please?

(the following is extracted from a blog post of mine about this)
The big reason for not getting your permission nowadays is because
your project has a targetSdkVersion of 23 or higher, and the permission
that you are requesting is "dangerous". In Android 6.0, this includes:
ACCEPT_HANDOVER
ACCESS_BACKGROUND_LOCATION
ACCESS_MEDIA_LOCATION
ACTIVITY_RECOGNITION
ANSWER_PHONE_CALLS
ACCESS_COARSE_LOCATION
ACCESS_FINE_LOCATION
ADD_VOICEMAIL
BODY_SENSORS
CALL_PHONE
CAMERA
GET_ACCOUNTS
PROCESS_OUTGOING_CALLS
READ_CALENDAR
READ_CALL_LOG
READ_CELL_BROADCASTS
READ_CONTACTS
READ_EXTERNAL_STORAGE
READ_PHONE_STATE
READ_SMS
RECEIVE_MMS
RECEIVE_SMS
RECEIVE_WAP_PUSH
RECORD_AUDIO
SEND_SMS
USE_SIP
WRITE_CALENDAR
WRITE_CALL_LOG
WRITE_CONTACTS
WRITE_EXTERNAL_STORAGE
For these permissions, not only does your targetSdkVersion 23+ app
need to have the <uses-permission> element(s), but you also have
to ask for those permissions at runtime from the user on Android 6.0+
devices, using methods like checkSelfPermission() and
requestPermissions().
As a temporary workaround, drop your targetSdkVersion below 23.
However, eventually, you will have some reason to want your
targetSdkVersion to be 23 or higher. At that time, you will need
to adjust your app to use the new runtime permission system.
The Android documentation has
a page dedicated to this topic.

Above API level 23 you will be given programmatically pragmatically like:
private static final int PERMISSION_REQUEST_CODE = 1;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
if (checkSelfPermission(Manifest.permission.SEND_SMS)
== PackageManager.PERMISSION_DENIED) {
Log.d("permission", "permission denied to SEND_SMS - requesting it");
String[] permissions = {Manifest.permission.SEND_SMS};
requestPermissions(permissions, PERMISSION_REQUEST_CODE);
}
}

Please go through the link below,
https://developer.android.com/guide/topics/permissions/overview.html
Some samples are also available there to get start with the permissions.
To make android more secure now developers has to mention permission in manifest as well as they should have to ask user as well in run time to get the work done. They are permission categorized in dangerous permission section which are mention below
CALENDAR
READ_CALENDAR
WRITE_CALENDAR
CAMERA
CAMERA
CONTACTS
READ_CONTACTS
WRITE_CONTACTS
GET_ACCOUNTS
LOCATION
ACCESS_FINE_LOCATION
ACCESS_COARSE_LOCATION
MICROPHONE
RECORD_AUDIO
PHONE
READ_PHONE_STATE
READ_PHONE_NUMBERS
CALL_PHONE
ANSWER_PHONE_CALLS (must request at runtime)
READ_CALL_LOG
WRITE_CALL_LOG
ADD_VOICEMAIL
USE_SIP
PROCESS_OUTGOING_CALLS
ANSWER_PHONE_CALLS
SENSORS
BODY_SENSORS
SMS
SEND_SMS
RECEIVE_SMS
READ_SMS
RECEIVE_WAP_PUSH
RECEIVE_MMS
STORAGE
READ_EXTERNAL_STORAGE
WRITE_EXTERNAL_STORAGE

request permission pragmatically (after API 23)
if (ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.SEND_SMS)
!= PackageManager.PERMISSION_GRANTED) {
// Permission is not granted
// Ask for permision
ActivityCompat.requestPermissions(this,new String[] { Manifest.permission.SEND_SMS}, 1);
}
else {
// Permission has already been granted
}
"If the app has the permission, the method checkSelfPermission() returns PERMISSION_GRANTED, and the app can proceed with the operation.
If the app does not have the permission, the method returns PERMISSION_DENIED, and the app has to explicitly ask the user for permission. You need to prompt the user for that permission, as shown in the above code. Calling requestPermissions() brings up a standard Android dialog, which you cannot customize."

If you are using sdk 23 or higher then you must check run time permissions.

when you declare permisson in Manifest and it's not work means you are performing Task in MarshMallow and for MarshMallow you have set Permisson at RunTime.
like this way
ActivityCompat.requestPermissions();

If you are using Android version "23" or "23+", then app will show you errors when you are trying to access anything which requires user's permission. You have to ask for permissions at run-time even if you have declared those permissions in Android manifest.
Check this: https://developer.android.com/training/permissions/requesting.html
But if you have created your whole application and don't want to change at every place then a little cheat will be sufficient.
Go to "Build.gradle" file and change the target Sdk version to less than 23, like 22, 21.

Along with CommonsWare's answer,
There is a Security Setting (I checked on CM13) to set SMS Message Limit. If you set this to "None", OS will popup a Dialog for every SMS, even after obtaining SMS_SEND permission in the runtime. Best thing is to set this to maximum.
If the maximum is not enough, there are ways to increases the maximum rate on a rooted device.

I added this to my MainActivity, that resolve my problem
int MY_PERMISSIONS_REQUEST_READ_CONTACTS=0;
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
// 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(this,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
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.
}
}

I hope the solution to write to external storage will be useful too
public boolean checkPermission() {
if (Build.VERSION.SDK_INT >= 23) {
if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
== PackageManager.PERMISSION_GRANTED) {
Timber.tag(LOG_TAG).e("Permission error. You have permission");
return true;
} else {
Timber.tag(LOG_TAG).e("Permission error. You have asked for permission");
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
return false;
}
}
else {
// for a stuff below api level 23
Timber.tag(LOG_TAG).e("Permission error. You already have the permission");
return true;
}
}

So i had to create an app to send and receive messages but the send action crashed whenever i clicked on send even though the permission was granted . I had requested runtime permissions and allowed them, still i faced a crash that the process doesnt have the requested permission to send SMS .
I had checked the granted permissions from :
adb shell dumpsys package <package-name>
The order of my request for permissions was
RECEIVE_SMS
SEND_SMS
I reverted the order of request and it works fine . This was tested with a complete new app(uninstall-> install -> test). The answer may seem weird but just give it a shot .
(If it works in the shown way in a certain order, then Android might have a bug!!)

Android READ_EXTERNAL_STORAGE permission not working

I'm trying to create a simple app that can get an image from the Gallery app and display it on an imageButton. I'm testing with API 21 on a phone running Android 5.0.1. Unfortunately, no matter what I try I keep getting a security error - even when I specify the permissions.
My code for getting retrieving the image is:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent){
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
switch(requestCode){
case PICK_IMAGE_REQUEST:
if(resultCode == RESULT_OK && imageReturnedIntent != null && imageReturnedIntent.getData() != null) {
Uri uri = imageReturnedIntent.getData();
try {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
// Log.d(TAG, String.valueOf(bitmap));
ImageButton ib = (ImageButton) findViewById(R.id.inputImg);
ib.setImageBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
}
break;
}
}
The code works when I try to select an image from Dropbox, but when I select an image from gallery, I get
java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/media/35634 from pid=25240, uid=10070 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission()
I made the use-permission tag for READ_EXTERNAL_STORAGE a child of manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="[REDACTED]">
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="23" />
<uses-permission tools:node="replace" android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="18" />
<application>
[REDACTED]
</application>
</manifest>
I've searched high and low on other posts, but still can't seem to figure out why I'm still getting this pesky error.

PROBLEM
Your have the error
java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/media/35634 from pid=25240, uid=10070 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission().
CAUSE
You are not giving correctly permissions because of android:maxSdkVersion="18", which according to documentation.
The highest API level at which this permission should be granted to your app. Setting this attribute is useful if the permission your app requires is no longer needed beginning at a certain API level.
As long as you didn't give permissions to API 21 your app is behaving ok.
Check this topic for further info.
SOLUTION
If you wanna give read permissions under API 21, you must declare them as:
<uses-permission
android:name="android.permission.READ_EXTERNAL_STORAGE"
android:maxSdkVersion="21" />
IMPORTANT:
This only make sense when you need to give extra permissions because some old api's require permissions that new versions doesn't, so user experience get's improved because you only ask for certain permissions when needed.
So (in this case) the correct way will be:
<uses-permission
android:name="android.permission.READ_EXTERNAL_STORAGE" />
ADD ON
If you want to save data you must add WRITE_EXTERNAL_STORAGE permissions.
<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Simply replace with the below one and try,
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

While debugging on some devices you need to grant permission explicitly by going to your settings --> apps --> MY_APPLICATION --> Permissions and then grant required permissions.

In addition to adding the below in AndroidManifest.xml
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
we also need to request permission in the activity for the app to actually have access to external storage. https://developer.android.com/training/permissions/requesting.html

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