"getDefaultSmsPackage(this)==null" on android 4.4 - android-4.4-kitkat

Telephony.Sms.getDefaultSmsPackage(this)==null
Why? Is there no default SMS app in the phone or other reasons?

The user use the app on his tablet .

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Wear OS app and associated phone app version number issue

I have published Phone app and wear OS app both together. But I forgot to set Opt-in to Wear OS settings. Now I want to release one more wear OS build with Opt-in to Wear OS settings turned on. Is it okay to release just wearOS apk with updated version number?.
No, you should publish both apps together. It may cause your mobile app to no show up in search if you publish without it.

Can Siri be used with a Cordova app?

Is it possible to use Siri with a Cordova app or only with the native apps?
Maybe cordova-plugin-speech-recognition-feat-siri will help you

Android Wear app. This app is incompatible with your device

I just published my app for wear devices, its the Watch Face, don't have any UI for phone app. I uploaded to the Google Play.
But it says This app is incompatible with your device. To all users or Devices.
Anyone have idea?
Since Android Wear application are only in sync with a handheld device, it needs to have a corresponding application in the handheld device.
Let me make it little more clear:
To install anything on Android Wear, you need to have corresponding application for mobile, which will sync up its corresponding wear part and install the same on wear.
So go ahead develop a dummy kind of an application for handheld.
According to the official documentation, in order to publish a wearable app without a phone app component, you need to raise your minimum target SDK version to 2.0.
Source: https://developer.android.com/training/wearables/apps/standalone-apps.html

Removing iphone4 & 4s from supported devices in app

Is there a way to support only iphone5 and above in your app?
Is it an xcode settings thing? When I submitted our app it says you need screenshots for iphone 4 since your binary supports it.
I am using spritekit and building with ios 8.1 . Any help or suggestions would be appreciated.
thanks
you cannot remove support for a device that Apple still supports on the App Store. You need to build your app to be compatible with all iPhones that Apple wants to support on the App Store.

Android Wear Preview app - which smartphones are compatible?

I got invitation to the Android Wear Developer program but when I try to install the Android Wear Preview app I see information that my device (Samsung Galaxy S2) is not compatible with the app. Is there some kind of list of devices compatible with Android Wear Preview app?
Thank you,
You need a 4.3+ Android smartphone. Because the Notification listener functionality has been added with API level 18.
Tablets were stated to be supported but right now they're filtered out from the store. You can still manually install the APK though.
Bluetooth LE isn't mandatory - for the preview at least.
I don't think there is a device spesific restriction, but according to developer.android.com
Note: The Android Wear Preview app is compatible with Android 4.3 and higher and is not available for the Android emulator.
Edit: I think BLE is used for communication between smartphone and watch. So obviously that would be hardware restriction.

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