Develop Reference

Android: App works on local device but not shown to that device on google play (SEND_SMS)

I am writing an app that needs to send SMS, if device support it, appart from Internet access and bluetooth communication. In the manifest I have these permissions:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.SEND_SMS" />
If I send the app to a 4.4.2 device using USB, everything works well. If I deploy that app on the google play, the same device can not see that app (meaning that it is not compliant with the device).
If I remove this line:
and deploy app on google play again, I can install it on the 4.4.2 device.
My question is:
Why does
<uses-permission android:name="android.permission.SEND_SMS" />
permission works when app is deployd by USB but prevents app from being installed if using google play?
Thanks a lot
Imo

android.telephony.gsm.SmsManager smsManager = android.telephony.gsm.SmsManager.getDefault();
smsManager.sendTextMessage(91xxxxxxxxxx, null, "message", null, null);
Use this code to send text messages which gives you various choices over send the message through all possible messengers.
This code works on every platform.

Why do I get "requesting permission to use WLAN. Allow?" prompt window in real mobile phone?

I use the Code A to set the enabled status of WiFi, it works well when I use Android Emulator with both API 26 and API 23 in Android Studio 3.1.3 , and none of prompt window display!
But I get a prompt window "An App is requesting permission to use WLAN. Allow?" in real mobile phone with Android 5.1 when I run the code A.
How can I make the prompt window not to display in real mobile phone? Thanks!
BTW,the real mobile phone is Samsung SM-J5008 with Android 5.1
Prompt Window
I have set the permissions
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
Code A
fun setWiFi(aWiFiDef: WiFiDef): Unit{
val wifiManager =mContext.applicationContext.getSystemService(WIFI_SERVICE) as WifiManager
wifiManager.isWifiEnabled=aWiFiDef.status
}

Android 5.1 does not have such runtime permission, so I assume, that this is a wrongly implemented permission request rational, which is shown even though the app does not need to. You wrote, that you tested with API level 26 and 23, which is Android 6.0 and higher, so these versions already have runtime permissions. Maybe you haven't seen this issue, because you haven't tested on devices below Android 6.0...
Please check if you somewhere call AppCompat.shouldShowRequestPermissionRationale() and if it is surrounded by SDK level checks or at least with a checkSelfPermission as described here: https://developer.android.com/training/permissions/requesting. Test your code in an emulator with Android 5.1 and Android 6.0. Then you should be able to reproduce that issue also on real phones.

You also need to add this to your manifest:
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
According to the website below: *App on Marshmallow needs ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION permission and Location services should be enabled to get wifi scan results. Google probably sees scanning for wifi as a security concern, and wanted to add the location permissions as well.
I would recommend following the blog post below if you are having trouble after adding the ACCESS_COARSE_LOCATION permission to your manifest.
https://www.intentfilter.com/2016/08/programatically-connecting-to-wifi.html
EDIT
For the people down voting, please include a comment explaining why. Was my answer flat out wrong? Did I overlook somthing?
Some more information on google's geolocation service:
Google maintains a huge database for its geolocation service ("Access coarse location" permission). It consists of:
Wifi access point mappings: Wifi MAC address resolve to a geolocation
Cell tower mapping: Cell tower ID's resolve to a geolocation
So it is very possible that this user didn't include this permission and is getting this dialog box.

Android Oreo 8.0+ Disable Network Permissions Problems

I'm building a Cordova app that needs to access WiFi on Android and disable the currently connected network in order to prevent automatic disconnection from the network i'm having it connect to (since there is no internet).
The problem is that when testing on Android Oreo 8.0+ I am getting this error in adb logcat and I can't figure out what I need to do to fix this:
E/WifiConfigManager: UID 10315 does not have permission to update configuration "Test SSID"WPA_PSK
E/WifiStateMachine: Failed to disable network
These are the perms listed in manifest:
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.OVERRIDE_WIFI_CONFIG" />
<uses-permission android:name="android.permission.INTERNET" />
The OVERRIDE_WIFI_CONFIG perm I found on this post, but that doesn't seem to help in my specific situation: Changing Android hotspot settings
I found this specific error located in this file:
https://android.googlesource.com/platform/frameworks/opt/net/wifi/+/master/service/java/com/android/server/wifi/WifiConfigManager.java#984
Which calls canModifyNetwork which I found here:
https://android.googlesource.com/platform/frameworks/opt/net/wifi/+/master/service/java/com/android/server/wifi/WifiConfigManager.java#651
Can anybody more experienced with Android help me to resolve this issue, and what needs to be done in order to allow my app to disable networks?
Does this mean that apps are not allowed to disable a network if it wasn't created by the app?? Please help I don't know where to go from here!
I did find this post as well, which references 6.0, but is this true that we're basically completely locked out of disabling networks we didn't create? Android 6.0 Cannot add WifiConfiguration if there is already another WifiConfiguration for that SSID

I am not able to answer your question per se, but I can answer this
Does this mean that apps are not allowed to disable a network if it
wasn't created by the app?
That's correct, as according the documentation of the method disableNetwork:
Disable a configured network. The specified network will not be a
candidate for associating. This may result in the asynchronous
delivery of state change events. Applications are not allowed to
disable networks created by other applications.
So if the user has already connected to this network using the Android system, in Oreo you won't be able to disable the network.
Though the method disableNetwork returns true or false in the case of success or failure

Cordova Android app and user permissions

I have an Android Cordova app and I'm using GPS, check the network state, read/write on the Documents folder and taking camera pictures. Here my permissions on the manifest XML file:
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-feature android:name="android.hardware.location.gps" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
The manifest file is auto generated by the Cordova framework. For some reason I don't see camera permissions. Permissions are not asked at installation time anymore (that's since Android 6) but instead they should be asked before usage.
I correctly get the GPS access permission popup but not the read/write Documents folder permission. I also never get the camera permission albeit I'm able to use it without ever being asked for permission. Same story for the Network status permissions (never being asked).
I find Android permissions scheme extremely confusing, under application manager my app has got Location and Storage as expected, Camera and Network status are missing though.
To recap, inside the app, on the actual code, I'm using at least once those devices
GPS fine grained
GPS coarse (probably the Wifi SSID triangulation trick)
Write on Documents
Read on Documents
Read network status (Offline / Wifi / 3G etc..)
Take picture from the camera
Cordova framework wrote this manifest file:
android.permission.ACCESS_COARSE_LOCATION
android.permission.ACCESS_FINE_LOCATION
android.hardware.location.gps (why is it not a .permission?)
android.permission.ACCESS_NETWORK_STATE
android.permission.WRITE_EXTERNAL_STORAGE
On application manager I get those options:
Location
Storage
So basically I get three different sets of permissions :-(

I found this in the this cordova plugin that you mentioned in comments.
So somehow this <uses-permission android:name="android.permission.CAMERA/> have to be in your code so as this plugin can use it.
Maybe you didn't check the right program to see its permissions, or if the camera permission is not shown in application permissions on device, you can't be able to use camera in this application. Please do a check again because I really want to know what is the situation.

Appcelerator Android app starts crashing when Internet is turned Off

I am working with Titanium Appcelerator 1.8.1 Android SDK. App is working perfect when Internet connectivity is on. But when I turn the connectivity is off, App crashes in the start. Nothing works as expected. I am supposed to develop offline feature, which enables app to be working as expected when it's offline and syncs data when it is online.
I had used following permission set:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_CALENDAR"/>
<uses-permission android:name="android.permission.WRITE_CALENDAR"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

Branch your logic like
if(Ti.Network.online){
//sync data
}else{
/fetch data from local persisitance
}
And FYI i guess Titanium takes care of adding these permissions to the manifest file by default.

That may be caused by the "Live view" option activated, it need the mobile to be in the same network as the PC where Appcelerator is running. If you are developing an offline app, you have to unselect that option, that way you can run your app without beeing in the same network as the PC.
Image of Live View option